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$85 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 6/4. 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
Tue 6/18
Tue 6/25

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In the last 7 days travelers have searched 41,904,688 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

March

Cheapest flight

$85
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

6/18Tue
1 stopSpirit Airlines
15h 42mBOI-BWI
6/25Tue
1 stopSpirit Airlines
24h 32mBWI-BOI
$174
6/18Tue
2 stopsSpirit Airlines
26h 35mBOI-BWI
6/25Tue
1 stopSpirit Airlines
24h 32mBWI-BOI
$186
6/11Tue
1 stop
13h 15mBOI-BWI
6/15Sat
2 stops
14h 49mBWI-BOI
$238
6/11Tue
2 stops
10h 33mBOI-BWI
6/15Sat
2 stops
14h 49mBWI-BOI
$259
8/4Sun
1 stopSun Country Air
13h 12mGEG-BWI
8/8Thu
1 stopSun Country Air
8h 05mBWI-GEG
$305
8/7Wed
1 stopAmerican Airlines
9h 27mGEG-DCA
8/21Wed
1 stopAmerican Airlines
8h 12mDCA-GEG
$327
8/9Fri
1 stopDelta
8h 04mGEG-IAD
8/20Tue
1 stopDelta
6h 52mIAD-GEG
$328
8/8Thu
1 stopDelta
7h 54mGEG-DCA
8/19Mon
1 stopDelta
8h 38mDCA-GEG
$328
8/7Wed
2 stopsAmerican Airlines
9h 20mGEG-DCA
8/21Wed
1 stopAmerican Airlines
9h 51mDCA-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

6/4Tue
3 stopsSpirit Airlines
25h 30mBOI-BWI
$85
5/28Tue
2 stopsSpirit Airlines
22h 07mBOI-BWI
$88
6/20Thu
1 stopSun Country Air
16h 32mGEG-IAD
$143
6/13Thu
1 stopSun Country Air
14h 18mGEG-BWI
$148
5/29Wed
3 stops
22h 49mBOI-IAD
$163
6/14Fri
1 stopUnited Airlines
7h 57mGEG-IAD
$164
6/3Mon
2 stops
15h 48mBOI-IAD
$165
6/24Mon
1 stopDelta
7h 06mBOI-IAD
$183
8/1Thu
1 stopDelta
7h 11mBOI-DCA
$183
6/12Wed
1 stopUnited Airlines
6h 38mBOI-IAD
$194

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

Last minute flight, train and bus deals

5/23Thu
multi-stop
12h 03mBOI-BWI
5/28Tue
multi-stop
24h 24mBWI-BOI
$431
5/23Thu
multi-stopSpirit Airlines
14h 38mBOI-BWI
5/27Mon
multi-stopSpirit Airlines
25h 05mBWI-BOI
$437
5/23Thu
multi-stop
12h 03mBOI-BWI
5/28Tue
multi-stop
12h 52mBWI-BOI
$451
5/23Thu
multi-stopSpirit Airlines
14h 38mBOI-BWI
5/26Sun
multi-stopSpirit Airlines
10h 10mBWI-BOI
$453
5/20Mon
multi-stopDelta
7h 43mGEG-IAD
6/13Thu
multi-stopDelta
9h 19mIAD-GEG
$703
5/20Mon
multi-stopAmerican Airlines
10h 18mGEG-DCA
6/13Thu
multi-stopAmerican Airlines
9h 15mDCA-GEG
$717
5/21Tue
multi-stopDelta
6h 19mBOI-BWI
5/22Wed
multi-stopDelta
7h 58mBWI-BOI
$726
5/21Tue
multi-stopAmerican Airlines
9h 42mGEG-BWI
5/29Wed
multi-stopAmerican Airlines
8h 45mBWI-GEG
$726
5/21Tue
multi-stopUnited Airlines
8h 08mBOI-BWI
5/21Tue
multi-stopUnited Airlines
7h 04mBWI-BOI
$823
5/20Mon
multi-stopUnited Airlines
8h 51mBOI-IAD
5/21Tue
multi-stopUnited Airlines
14h 34mIAD-BOI
$843

Search by stops

Search by airline

Search by price