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$112 Find cheap flights from Idaho to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Washington, D.C. departing on 5/28. 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
Sat 6/15
Sat 6/22

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In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

March

Cheapest flight

$112
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Boise to Baltimore

FAQs for booking flights from Idaho to Washington, D.C.

  • How does KAYAK find such low prices on flights from Idaho to Washington, D.C.?

    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 Idaho to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Idaho 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 Idaho to Washington, D.C.?

    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 Washington, D.C. with an airline and back to Idaho with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to Washington, D.C.?

    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 Washington, D.C. from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Idaho to Washington, D.C.?

Find which airlines fly direct from Idaho to Washington, D.C., which days they fly and book direct flights.

Nonstop departures

Idaho to Washington, D.C.

Monday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

Tuesday

ANA, ASKY, Aer Lingus, +72 more

ANA, ASKY, +73 more

Wednesday

ANA, ASKY, Aer Lingus, +72 more

ANA, ASKY, +73 more

Thursday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

Friday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

Saturday

ANA, ASKY, Aer Lingus, +72 more

ANA, ASKY, +73 more

Sunday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

See more direct flights

Nonstop returns

Washington, D.C. to Idaho

Monday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

Tuesday

ANA, ASKY, Aer Lingus, +72 more

ANA, ASKY, +73 more

Wednesday

ANA, ASKY, Aer Lingus, +72 more

ANA, ASKY, +73 more

Thursday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

Friday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

Saturday

ANA, ASKY, Aer Lingus, +72 more

ANA, ASKY, +73 more

Sunday

ANA, ASKY, Aer Lingus, +73 more

ANA, ASKY, +74 more

See more direct flights
See more direct flights

Book cheap flights from Idaho to Washington, D.C.

Recent round-trip flight deals

6/4Tue
1 stopSpirit Airlines
9h 39mBOI-BWI
6/7Fri
1 stopSpirit Airlines
24h 55mBWI-BOI
$206
6/4Tue
1 stopSpirit Airlines
9h 39mBOI-BWI
6/7Fri
1 stopSpirit Airlines
17h 25mBWI-BOI
$210
5/29Wed
1 stop
14h 42mBOI-BWI
6/1Sat
1 stop
13h 45mBWI-BOI
$256
6/2Sun
1 stop
25h 33mBOI-BWI
6/5Wed
2 stops
15h 40mBWI-BOI
$264
6/13Thu
1 stopSun Country Air
16h 17mGEG-IAD
6/16Sun
1 stopSun Country Air
12h 58mIAD-GEG
$295
5/31Fri
1 stopDelta
7h 55mGEG-IAD
6/3Mon
1 stopDelta
10h 10mIAD-GEG
$328
6/13Thu
1 stopDelta
7h 16mGEG-DCA
6/17Mon
1 stopDelta
8h 42mDCA-GEG
$328
8/14Wed
1 stopAmerican Airlines
7h 12mGEG-IAD
8/20Tue
2 stopsAmerican Airlines
13h 28mIAD-GEG
$330
9/28Sat
1 stopAmerican Airlines
7h 22mGEG-IAD
10/1Tue
2 stopsAmerican Airlines
11h 53mIAD-GEG
$332
6/13Thu
1 stopSun Country Air
14h 18mGEG-BWI
6/23Sun
1 stopSun Country Air
8h 46mBWI-GEG
$355

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Recent one-way flight deals

5/28Tue
3 stopsSpirit Airlines
33h 27mBOI-BWI
$112
6/24Mon
1 stopSpirit Airlines
15h 16mBOI-BWI
$122
6/20Thu
1 stopSun Country Air
16h 32mGEG-IAD
$163
6/18Tue
1 stopDelta
7h 37mGEG-IAD
$164
6/13Thu
2 stops
15h 30mBOI-IAD
$165
9/17Tue
2 stopsDelta
9h 27mGEG-IAD
$169
7/7Sun
1 stopSun Country Air
13h 22mGEG-BWI
$173
7/2Tue
1 stopUnited Airlines
10h 02mBOI-IAD
$190
5/28Tue
3 stops
35h 17mBOI-IAD
$199
6/18Tue
1 stopUnited Airlines
6h 23mGEG-DCA
$214

Search by stops

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Last minute flights from Idaho to Washington, D.C.

Last minute flight, train and bus deals

5/17Fri
multi-stopSpirit Airlines
9h 03mBOI-BWI
5/22Wed
multi-stopSpirit Airlines
28h 05mBWI-BOI
$541
5/21Tue
multi-stopDelta
5h 54mGEG-IAD
5/29Wed
multi-stopDelta
7h 48mIAD-GEG
$558
5/21Tue
multi-stopAlaska Airlines
11h 14mGEG-DCA
5/29Wed
multi-stopAlaska Airlines
7h 38mDCA-GEG
$558
5/21Tue
multi-stopDelta
12h 57mGEG-IAD
5/29Wed
multi-stopDelta
7h 48mIAD-GEG
$563
5/21Tue
multi-stopDelta
10h 37mGEG-DCA
5/29Wed
multi-stopDelta
9h 44mDCA-GEG
$563
5/19Sun
multi-stopSpirit Airlines
19h 08mBOI-BWI
5/20Mon
multi-stopSpirit Airlines
21h 10mBWI-BOI
$568
5/21Tue
multi-stopAmerican Airlines
7h 57mGEG-IAD
5/29Wed
multi-stopAmerican Airlines
10h 46mIAD-GEG
$617
5/21Tue
multi-stopUnited Airlines
17h 14mGEG-BWI
5/29Wed
multi-stopUnited Airlines
7h 46mBWI-GEG
$727
5/21Tue
multi-stopAmerican Airlines
10h 53mGEG-IAD
5/29Wed
multi-stopAmerican Airlines
10h 46mIAD-GEG
$772
5/20Mon
multi-stopUnited Airlines
7h 23mGEG-IAD
5/22Wed
multi-stopUnited Airlines
9h 50mIAD-GEG
$838

Search by stops

Search by airline

Search by price