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Find cheap flights from Idaho to Washington, D.C. from $118

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 5/27. 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
Wed 6/12
Wed 6/19

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In the last 7 days travelers have searched 41,771,603 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

March

Cheapest flight

$118
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

6/11Tue
1 stopSpirit Airlines
13h 15mBOI-BWI
6/25Tue
1 stopSpirit Airlines
19h 35mBWI-BOI
$138
6/1Sat
1 stopSpirit Airlines
13h 24mBOI-BWI
6/5Wed
1 stopSpirit Airlines
22h 23mBWI-BOI
$176
6/10Mon
1 stop
9h 32mBOI-BWI
6/19Wed
1 stop
15h 09mBWI-BOI
$180
6/1Sat
1 stop
13h 24mBOI-BWI
6/5Wed
2 stops
26h 54mBWI-BOI
$197
8/14Wed
1 stopAmerican Airlines
7h 12mGEG-IAD
8/21Wed
1 stopAmerican Airlines
18h 48mIAD-GEG
$320
8/14Wed
1 stopAmerican Airlines
9h 59mGEG-BWI
8/20Tue
1 stopAmerican Airlines
17h 31mBWI-GEG
$324
9/28Sat
1 stopDelta
6h 28mGEG-IAD
10/1Tue
1 stopDelta
7h 19mIAD-GEG
$328
9/28Sat
1 stopDelta
8h 22mGEG-IAD
10/1Tue
2 stopsDelta
11h 02mIAD-GEG
$333
7/25Thu
1 stopSun Country Air
14h 07mGEG-BWI
8/4Sun
1 stopSun Country Air
8h 45mBWI-GEG
$350
6/6Thu
1 stopSun Country Air
14h 58mGEG-IAD
6/13Thu
1 stopSun Country Air
7h 05mIAD-GEG
$430

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Recent one-way flight deals

5/27Mon
2 stopsSpirit Airlines
22h 19mBOI-BWI
$118
7/22Mon
1 stopSpirit Airlines
10h 31mBOI-BWI
$120
6/27Thu
1 stopSun Country Air
16h 19mGEG-IAD
$143
7/21Sun
1 stopSun Country Air
13h 17mGEG-BWI
$148
6/11Tue
1 stopAmerican Airlines
7h 49mGEG-DCA
$163
6/19Wed
1 stopAmerican Airlines
10h 20mGEG-DCA
$164
6/18Tue
1 stopDelta
9h 25mGEG-IAD
$164
6/9Sun
2 stops
35h 00mGEG-BWI
$168
7/4Thu
1 stop
18h 23mBOI-BWI
$177
6/10Mon
1 stopDelta
7h 37mGEG-IAD
$184

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

Last minute flight, train and bus deals

5/16Thu
multi-stopSpirit Airlines
25h 24mBOI-BWI
5/24Fri
multi-stopSpirit Airlines
22h 23mBWI-BOI
$486
5/17Fri
multi-stopSpirit Airlines
9h 03mBOI-BWI
5/22Wed
multi-stopSpirit Airlines
28h 05mBWI-BOI
$488
5/16Thu
multi-stop
25h 24mBOI-BWI
5/19Sun
multi-stop
25h 54mBWI-BOI
$513
5/14Tue
multi-stop
14h 18mBOI-BWI
5/22Wed
multi-stop
27h 52mBWI-BOI
$523
5/18Sat
multi-stopUnited Airlines
6h 32mIDA-IAD
5/25Sat
multi-stopUnited Airlines
26h 31mIAD-IDA
$750
5/15Wed
multi-stopAlaska Airlines
9h 30mBOI-IAD
5/31Fri
multi-stopAlaska Airlines
17h 01mIAD-BOI
$754
5/14Tue
multi-stopAmerican Airlines
8h 18mJAC-DCA
5/18Sat
multi-stopAmerican Airlines
8h 38mDCA-JAC
$782
5/14Tue
multi-stopAmerican Airlines
6h 38mJAC-IAD
5/18Sat
multi-stopAmerican Airlines
11h 16mIAD-JAC
$786
5/18Sat
multi-stopUnited Airlines
14h 47mIDA-IAD
5/25Sat
multi-stopUnited Airlines
26h 31mIAD-IDA
$791
5/14Tue
multi-stopAlaska Airlines
7h 26mGEG-IAD
5/21Tue
multi-stopAlaska Airlines
9h 20mIAD-GEG
$859

Search by stops

Search by airline

Search by price