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MDT - SEA

$145 Find cheap flights from Harrisburg to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harrisburg to Seattle departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 6/30
Sun 7/7

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harrisburg to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harrisburg to Seattle, as well as popular online travel agencies
In the last 7 days travelers have searched 43,361,115 times on KAYAK, and here is why:

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Cheap flight deals from Harrisburg to Seattle (MDT-SEA)

 
These are the cheapest deals for flights from Harrisburg to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Harrisburg to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Harrisburg to Seattle.

Recent one-way flight deals from Harrisburg to Seattle

Only flying one-way? Below are some of the best one-way flight deals from Harrisburg to Seattle found on KAYAK recently.

Recent last minute flight deals from Harrisburg to Seattle

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Harrisburg to Seattle.

Recent direct flight deals from Harrisburg to Seattle

The latest deals for direct flights from Harrisburg to Seattle so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Harrisburg to Seattle

Find recent round-trip train or bus tickets from Harrisburg to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:03 pm - 7:39 pmMDT-SEA
10h 36m1 stop
10:10 pm - 11:13 amSEA-MDT
10h 03m1 stop
$253American Airlines
Find Deal
Tue, Aug 27 - Fri, Sep 6
11:59 am - 7:31 pmMDT-SEA
10h 32m2 stops
11:59 pm - 11:13 amSEA-MDT
8h 14m1 stop
$260American Airlines
Find Deal
Thu, Sep 26 - Sat, Oct 5
6:56 pm - 8:09 pmMDT-SEA
28h 13m3 stops
5:15 pm - 4:23 pmSEA-MDT
20h 08m2 stops
Thu, Jul 4 - Thu, Jul 11
6:00 am - 11:30 amMDT-SEA
8h 30m1 stop
7:45 pm - 10:09 amSEA-MDT
11h 24m2 stops
$402United Airlines
Find Deal
Wed, Aug 14 - Tue, Aug 20
6:25 am - 11:43 amMDT-SEA
8h 18m1 stop
6:00 am - 9:35 pmSEA-MDT
12h 35m2 stops
$422United Airlines
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Fri, Aug 23 - Sat, Sep 14
4:23 pm - 12:45 pmMDT-SEA
23h 22m2 stops
9:38 am - 9:23 amSEA-MDT
20h 45m2 stops
Sun, Sep 22 - Thu, Sep 26
6:05 am - 4:41 pmMDT-SEA
13h 36m2 stops
11:52 am - 11:51 pmSEA-MDT
8h 59m1 stop
$433Delta
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Wed, Aug 28 - Wed, Sep 4
6:05 am - 4:41 pmMDT-SEA
13h 36m2 stops
9:55 am - 11:51 pmSEA-MDT
10h 56m2 stops
$438Delta
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Wed, Aug 28 - Wed, Sep 4
10:42 am - 6:08 pmMDT-SEA
10h 26m1 stop
8:25 am - 9:37 pmSEA-MDT
10h 12m1 stop
$528Alaska Airlines
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Thu, Jul 4 - Wed, Jul 10
6:13 pm - 11:59 pmMDT-SEA
8h 46m1 stop
6:07 am - 5:46 pmSEA-MDT
8h 39m1 stop
$649Alaska Airlines
Find Deal
Tue, Jul 23 - Tue, Jul 30
10:48 pm - 8:21 pmMDT-SEA
24h 33m2 stops
Mon, Sep 30
6:05 pm - 11:56 pmMDT-SEA
8h 51m1 stop
$148Delta
Find Deal
Mon, Sep 30
10:50 pm - 4:08 pmMDT-SEA
20h 18m2 stops
Fri, Aug 23
10:48 pm - 4:08 pmMDT-SEA
44h 20m3 stops
Mon, Sep 30
10:50 pm - 4:08 pmMDT-SEA
44h 18m3 stops
Mon, Aug 19
3:26 pm - 10:29 pmMDT-SEA
10h 03m1 stop
$159American Airlines
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Wed, Jun 5
5:13 pm - 4:15 pmMDT-SEA
26h 02m2 stops
Mon, Jul 29
6:05 am - 11:07 amMDT-SEA
8h 02m1 stop
$198United Airlines
Find Deal
Fri, Jun 7
6:05 am - 11:07 amMDT-SEA
8h 02m1 stop
$239United Airlines
Find Deal
Sun, Jun 9
1:32 pm - 8:40 pmMDT-SEA
10h 08m2 stops
$270American Airlines
Find Deal
Wed, Jun 5
7:45 am - 6:40 pmMDT-SEA
13h 55m2 stops
5:10 pm - 9:23 pmSEA-MDT
25h 13m1 stop
$554United Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 22
7:45 am - 12:59 pmMDT-SEA
8h 14m1 stop
5:10 pm - 9:23 pmSEA-MDT
25h 13m1 stop
$582United Airlines
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Sat, Jun 1 - Sat, Jun 22
7:45 am - 6:40 pmMDT-SEA
13h 55m2 stops
5:10 pm - 9:23 pmSEA-MDT
25h 13m1 stop
$677United Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 22
3:00 pm - 9:56 pmMDT-SEA
9h 56m1 stop
9:35 pm - 10:17 amSEA-MDT
9h 42m1 stop
$683Alaska Airlines
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Fri, May 31 - Fri, Jun 21
7:45 am - 6:40 pmMDT-SEA
13h 55m2 stops
5:05 am - 9:15 pmSEA-MDT
13h 10m2 stops
$773United Airlines
Find Deal
Sat, Jun 1 - Sat, Jun 22
6:20 am - 12:56 pmMDT-SEA
33h 36m3 stops
8:59 pm - 8:19 pmSEA-MDT
20h 20m3 stops
$1,041
Find Deal
Fri, May 31 - Fri, Jun 21
6:20 am - 12:56 pmMDT-SEA
33h 36m3 stops
9:28 am - 3:36 pmSEA-MDT
27h 08m2 stops
$1,045
Find Deal
Fri, May 31 - Fri, Jun 21
3:00 pm - 9:56 pmMDT-SEA
9h 56m1 stop
6:00 am - 9:27 pmSEA-MDT
12h 27m2 stops
$1,103Alaska Airlines
Find Deal
Fri, May 31 - Fri, Jun 21
6:16 pm - 10:25 pmMDT-SEA
7h 09m1 stop
12:25 am - 1:19 pmSEA-MDT
9h 54m2 stops
$1,774Delta
Find Deal
Sat, Jun 1 - Fri, Jun 21
6:16 pm - 10:25 pmMDT-SEA
7h 09m1 stop
12:25 am - 1:19 pmSEA-MDT
9h 54m2 stops
$1,844Delta
Find Deal
Sat, Jun 1 - Fri, Jun 21

Flights from Harrisburg to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Harrisburg to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Harrisburg to Seattle?

The average price of all flights from Harrisburg to Seattle clicked on KAYAK for each day over the last 12 months.
For Harrisburg to Seattle, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle back to Harrisburg, the best deals are generally found on Tuesday, with Saturday being the most expensive.

What is the cheapest month to fly from Harrisburg to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Harrisburg to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Harrisburg to Seattle is November, where tickets cost $297 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $731 and $705 respectively.

How far in advance should I book a flight from Harrisburg to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Harrisburg to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Harrisburg to Seattle, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 54 days before departure.

Which airlines provide the cheapest flights from Harrisburg to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Harrisburg to Seattle were found on American Airlines ($253) and United Airlines ($402). Delta proposed the cheapest one-way flight at $148.

Good to know

Low season

January

High season

August

Cheapest flight

$145
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Harrisburg to Seattle

When to book flights from Harrisburg to Seattle

Are your dates flexible? Find out the best times to travel from Harrisburg to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Harrisburg to Seattle

  • What is the cheapest flight from Harrisburg to Seattle?

    In the last 3 days, the lowest price for a flight from Harrisburg to Seattle was $145 for a one-way ticket and $253 for a round-trip.

  • Do I need a passport to fly between Harrisburg and Seattle?

    A passport is not required to fly from Harrisburg to Seattle.

  • Which airports will I be using when flying from Harrisburg to Seattle?

    On your way to Seattle, you’ll fly out from Harrisburg. You’ll be landing at Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Harrisburg to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Harrisburg to Seattle?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Harrisburg and Seattle, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Harrisburg to Seattle, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Harrisburg to Seattle are Delta and Alaska Airlines. With an average price for the route of $551 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $816 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Harrisburg to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Harrisburg to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Harrisburg to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Harrisburg is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Harrisburg to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Harrisburg with another airline. Booking your flights between Harrisburg and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Harrisburg to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Harrisburg up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Harrisburg to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Harrisburg to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Harrisburg to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9196 reviews
7.3Food
8.2Boarding
7.3Entertainment
8.6Crew
7.9Comfort
Airline reviews

I have to eat gluten-free due to celiac disease, but so far no Alaska Air flight has offered a gluten-free option for the snack given out with free drinks. It seems like that wouldn't be too hard to do.

8.0 ExcellentAnonymous, May 2024PHL - SEA
Read more about Alaska Airlines reviews

I have to eat gluten-free due to celiac disease, but so far no Alaska Air flight has offered a gluten-free option for the snack given out with free drinks. It seems like that wouldn't be too hard to do.

I didn’t know that food needed to be ordered ahead. Please include this in the reservation information. Overall, very good experience.

Full flight where I had another passenger sitting in middle seat who said that he had lost 250 lbs from 500. The stewardess on exiting the flight advise me that I was going to receive a refund. I thought she was talking about another passenger. The stewardess saw that to make him comfortable I had lifted the armrest and flew for 5 hours to Seattle from Reagan DCA with a portion of his body on my seat. I survived. I flight to remember!!!!

the flight was delayed almost 3 hours and not one time was we told that it was delayed or why. I had asked one of the crew members why it was delayed, 20 minutes after the flight was supposed to take off, and was told that they had no idea what was going on and that they had not been told anything. this is FRIGHTENING!!!! No excuse!!

Flights were on time. Check in was fine. Crew members were pleasant.

I would have liked it to have been easier to order food for the flight. My son was not happy with the snack pack I bought him and it was a very long flight for a little boy to go without food.

Ground staff at LAX was very helpful. The Alaska lounge food and service is better than most airport lounges. I think the Staff are well trained polite and actually seem happy to work there. Great service Thanks 🙏 Jjk

The flight was very very delayed and arrived much later than planned. There was no communication about why or when our arrival would be. I would expect better and open communication about the flight but there was none. Also just pretzels? How disappointing.

I got to my destination but no comforts no snacks nothing. Like herding cows!!

My only comment was the confusion at Houston. Suppose to leave at 6 am and didn't leave til 11 am. Then moving from gate 10 to 30 and couple of hours later back to gate 10. Otherwise everyone everything was great.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

First flight of the day… MINIMUM FUEL! 15 minute landing delay at HOU due to fog turned into a 2+ hour delay! Rather than circle, they had to divert to another city to refuel! Sat on tarmac at Austin to refuel. We ALL missed our connections! The crew, including pilots, were clueless. Crew was really a mess. At HOU, Untied employees were exceedingly rude to all. It was pitiful.

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

It was a good flight. Of course it was full, but it went well.

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

Book cheap flights from Harrisburg to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Harrisburg to Seattle found on KAYAK in the last 72 hours.
9/30Mon
2 stops
24h 33mMDT-SEA
$145
9/30Mon
1 stopDelta
8h 51mMDT-SEA
$148
8/23Fri
2 stops
20h 18mMDT-SEA
$150
9/30Mon
3 stops
44h 20mMDT-SEA
$155
8/19Mon
3 stops
44h 18mMDT-SEA
$156
6/5Wed
1 stopAmerican Airlines
10h 03mMDT-SEA
$159
7/29Mon
2 stops
26h 02mMDT-SEA
$167
6/7Fri
1 stopUnited Airlines
8h 02mMDT-SEA
$198
6/9Sun
1 stopUnited Airlines
8h 02mMDT-SEA
$239
6/5Wed
2 stopsAmerican Airlines
10h 08mMDT-SEA
$270

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Last minute flights from Harrisburg to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Harrisburg to Seattle that are departing in the next 10 days.
6/1Sat
multi-stopUnited Airlines
13h 55mMDT-SEA
6/22Sat
multi-stopUnited Airlines
25h 13mSEA-MDT
$554
6/1Sat
multi-stopUnited Airlines
8h 14mMDT-SEA
6/22Sat
multi-stopUnited Airlines
25h 13mSEA-MDT
$582
6/1Sat
multi-stopUnited Airlines
13h 55mMDT-SEA
6/22Sat
multi-stopUnited Airlines
25h 13mSEA-MDT
$677
5/31Fri
multi-stopAlaska Airlines
9h 56mMDT-SEA
6/21Fri
multi-stopAlaska Airlines
9h 42mSEA-MDT
$683
6/1Sat
multi-stopUnited Airlines
13h 55mMDT-SEA
6/22Sat
multi-stopUnited Airlines
13h 10mSEA-MDT
$773
5/31Fri
multi-stop
33h 36mMDT-SEA
6/21Fri
multi-stop
20h 20mSEA-MDT
$1,041
5/31Fri
multi-stop
33h 36mMDT-SEA
6/21Fri
multi-stop
27h 08mSEA-MDT
$1,045
5/31Fri
multi-stopAlaska Airlines
9h 56mMDT-SEA
6/21Fri
multi-stopAlaska Airlines
12h 27mSEA-MDT
$1,103
6/1Sat
multi-stopDelta
7h 09mMDT-SEA
6/21Fri
multi-stopDelta
9h 54mSEA-MDT
$1,774
6/1Sat
multi-stopDelta
7h 09mMDT-SEA
6/21Fri
multi-stopDelta
9h 54mSEA-MDT
$1,844

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Harrisburg - Seattle Flights

Departure:

Harrisburg (MDT)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Harrisburg

Cabin classes: