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$101 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 9/4. 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
Sat 7/13
Sat 7/20

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In the last 7 days travelers have searched 44,216,777 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

March

Cheapest flight

$101
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 8% 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, +74 more

ANA, ASKY, +75 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, +74 more

ANA, ASKY, +75 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, +74 more

ANA, ASKY, +75 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, +74 more

ANA, ASKY, +75 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

9/10Tue
2 stopsSpirit Airlines
11h 13mBOI-BWI
9/17Tue
1 stopSpirit Airlines
14h 49mBWI-BOI
$209
9/10Tue
1 stopSpirit Airlines
10h 39mBOI-BWI
9/17Tue
1 stopSpirit Airlines
14h 49mBWI-BOI
$212
10/1Tue
1 stopDelta
6h 27mBOI-BWI
10/9Wed
1 stopDelta
7h 14mBWI-BOI
$236
8/6Tue
1 stopDelta
7h 42mGEG-BWI
8/20Tue
1 stopDelta
8h 21mBWI-GEG
$236
7/3Wed
1 stop
9h 41mBOI-BWI
7/17Wed
1 stop
7h 08mBWI-BOI
$269
7/31Wed
1 stop
11h 02mBOI-BWI
8/3Sat
1 stop
7h 41mBWI-BOI
$278
8/6Tue
1 stopUnited Airlines
8h 00mGEG-IAD
8/20Tue
1 stopUnited Airlines
11h 07mIAD-GEG
$282
10/29Tue
1 stopAmerican Airlines
7h 22mGEG-DCA
11/2Sat
1 stopAmerican Airlines
8h 40mDCA-GEG
$282
9/21Sat
1 stopAmerican Airlines
9h 28mGEG-DCA
9/27Fri
2 stopsAmerican Airlines
10h 25mDCA-GEG
$287
8/15Thu
1 stopUnited Airlines
9h 58mBOI-IAD
8/19Mon
2 stopsUnited Airlines
13h 45mIAD-BOI
$385

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Recent one-way flight deals

9/4Wed
2 stopsSpirit Airlines
11h 13mBOI-BWI
$101
8/14Wed
1 stopSpirit Airlines
11h 08mBOI-BWI
$106
8/23Fri
1 stopAmerican Airlines
7h 13mGEG-BWI
$106
8/29Thu
1 stopDelta
7h 15mBOI-BWI
$118
8/22Thu
1 stopDelta
8h 31mGEG-BWI
$118
10/16Wed
1 stopAlaska Airlines
14h 44mGEG-BWI
$135
8/22Thu
1 stopAmerican Airlines
7h 12mGEG-IAD
$141
6/30Sun
1 stopSun Country Air
13h 44mGEG-IAD
$151
6/27Thu
1 stopSun Country Air
16h 19mGEG-IAD
$172
10/17Thu
2 stopsAlaska Airlines
20h 32mBOI-BWI
$214

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

Last minute flight, train and bus deals

6/18Tue
multi-stopSpirit Airlines
9h 41mBOI-BWI
6/21Fri
multi-stopSpirit Airlines
23h 38mBWI-BOI
$383
6/18Tue
multi-stopSpirit Airlines
9h 41mBOI-BWI
6/21Fri
multi-stopSpirit Airlines
21h 22mBWI-BOI
$456
6/17Mon
multi-stop
15h 16mBOI-BWI
6/23Sun
multi-stop
24h 07mBWI-BOI
$537
6/17Mon
multi-stop
13h 45mBOI-BWI
6/23Sun
multi-stop
24h 07mBWI-BOI
$540
6/14Fri
multi-stopAmerican Airlines
28h 24mJAC-IAD
6/16Sun
multi-stopAmerican Airlines
27h 58mIAD-JAC
$757
6/14Fri
multi-stopAmerican Airlines
20h 33mJAC-DCA
6/16Sun
multi-stopAmerican Airlines
18h 10mDCA-JAC
$757
6/14Fri
multi-stopAlaska Airlines
8h 36mGEG-IAD
6/21Fri
multi-stopAlaska Airlines
9h 18mIAD-GEG
$765
6/14Fri
multi-stopDelta
5h 58mGEG-DCA
6/21Fri
multi-stopDelta
9h 13mDCA-GEG
$770
6/14Fri
multi-stopDelta
8h 14mJAC-IAD
6/16Sun
multi-stopDelta
7h 06mIAD-JAC
$782
6/14Fri
multi-stopAlaska Airlines
7h 24mGEG-IAD
6/18Tue
multi-stopAlaska Airlines
7h 58mIAD-GEG
$788

Search by stops

Search by airline

Search by price