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$109 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 9/7. 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
mer. 7/10
mer. 7/17

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In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

March

Cheapest flight

$109
Best time to beat the crowds with an average 20% 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

9/17mar.
2 stopsSpirit Airlines
11h 13mBOI-BWI
10/1mar.
1 stopSpirit Airlines
16h 35mBWI-BOI
$205
9/17mar.
1 stopSpirit Airlines
7h 09mBOI-BWI
10/1mar.
1 stopSpirit Airlines
16h 35mBWI-BOI
$206
7/8lun.
2 stops
23h 52mIDA-BWI
7/15lun.
1 stop
10h 45mBWI-IDA
$326
8/14mer.
1 stopAmerican Airlines
7h 12mGEG-IAD
8/20mar.
1 stopAmerican Airlines
7h 45mIAD-GEG
$328
7/8lun.
3 stops
24h 42mIDA-BWI
7/15lun.
1 stop
10h 45mBWI-IDA
$330
8/14mer.
1 stopAmerican Airlines
7h 12mGEG-IAD
8/20mar.
2 stopsAmerican Airlines
14h 22mIAD-GEG
$333
10/29mar.
1 stopDelta
7h 41mGEG-IAD
11/2sam.
1 stopDelta
7h 31mIAD-GEG
$348
8/14mer.
2 stopsDelta
13h 11mBOI-BWI
8/18dim.
1 stopDelta
6h 57mBWI-BOI
$356
7/26ven.
1 stopAlaska Airlines
8h 05mGEG-IAD
7/30mar.
1 stopAlaska Airlines
9h 18mIAD-GEG
$378
8/26lun.
1 stopAlaska Airlines
23h 03mBOI-DCA
8/31sam.
1 stopAlaska Airlines
14h 40mDCA-BOI
$382

Search by stops

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Recent one-way flight deals

9/7sam.
1 stopSpirit Airlines
7h 09mBOI-BWI
$109
7/2mar.
1 stopSpirit Airlines
15h 42mBOI-BWI
$110
7/3mer.
1 stopSun Country Air
15h 28mBOI-IAD
$140
7/31mer.
1 stopSun Country Air
14h 48mBOI-BWI
$148
7/3mer.
1 stopAlaska Airlines
7h 19mGEG-DCA
$164
7/3mer.
2 stops
22h 17mBOI-IAD
$166
7/8lun.
3 stops
21h 25mIDA-BWI
$168
7/17mer.
1 stopUnited Airlines
10h 02mBOI-IAD
$179
7/4jeu.
1 stopAlaska Airlines
8h 46mBOI-IAD
$196
7/12ven.
1 stopUnited Airlines
7h 55mGEG-IAD
$214

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Search by price

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

Last minute flight, train and bus deals

6/11mar.
multi-stopSpirit Airlines
29h 48mBOI-BWI
7/3mer.
multi-stopSpirit Airlines
14h 18mBWI-BOI
$490
6/11mar.
multi-stop
15h 42mBOI-BWI
7/3mer.
multi-stop
7h 08mBWI-BOI
$519
6/13jeu.
multi-stopDelta
8h 34mJAC-IAD
7/15lun.
multi-stopDelta
9h 41mIAD-JAC
$652
6/13jeu.
multi-stopDelta
12h 36mJAC-IAD
7/15lun.
multi-stopDelta
9h 41mIAD-JAC
$657
6/13jeu.
multi-stopAmerican Airlines
14h 54mBOI-IAD
6/18mar.
multi-stopAmerican Airlines
19h 11mIAD-BOI
$716
6/15sam.
multi-stopAlaska Airlines
7h 59mBOI-DCA
6/25mar.
multi-stopAlaska Airlines
9h 04mDCA-BOI
$716
6/14ven.
multi-stopAmerican Airlines
19h 58mJAC-IAD
6/16dim.
multi-stopAmerican Airlines
17h 11mIAD-JAC
$749
6/14ven.
multi-stopAlaska Airlines
8h 36mGEG-IAD
6/16dim.
multi-stopAlaska Airlines
7h 58mIAD-GEG
$788
6/13jeu.
multi-stopUnited Airlines
6h 56mGEG-BWI
6/17lun.
multi-stopUnited Airlines
15h 42mBWI-GEG
$806
6/12mer.
multi-stopUnited Airlines
12h 33mBOI-DCA
6/16dim.
multi-stopUnited Airlines
9h 37mDCA-BOI
$909

Search by stops

Search by airline

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