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.

$152 CHEAP FLIGHTS from Idaho to Washington, D.C.

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Flight Deals

Cheap Flights from Idaho to Washington, D.C.

Discover the best prices for you by selecting your travel dates on KAYAK.

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One-way

Last minute

Direct

Recent round-trip flight deals from Idaho to Washington, D.C.

Tue, Sep 22 - Tue, Sep 29

1:06 pm - 11:43 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 37m1 stop Salt Lake City

7:25 am - 3:16 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 51m1 stop Seattle/Tacoma Intl

$303Delta

Mon, Oct 26 - Thu, Oct 29

10:34 am - 10:49 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

10h 15m1 stop Seattle/Tacoma Intl

7:23 am - 12:35 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 12m1 stop Minneapolis St Paul

$303Delta

Thu, Oct 29 - Mon, Nov 2

12:14 pm - 11:23 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 09m1 stop Dallas/Fort Worth

2:42 pm - 10:42 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

10h 00m1 stop Dallas/Fort Worth

$303American Airlines

Thu, Oct 29 - Mon, Nov 2

12:14 pm - 11:23 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 09m1 stop Dallas/Fort Worth

7:14 am - 1:51 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 37m1 stop Dallas/Fort Worth

$303American Airlines

Tue, Sep 29 - Tue, Oct 6

5:00 am - 3:07 pmBOI Boise Air Term. Gowen Fld-BWI Baltimore/Washington

8h 07m1 stop Denver Intl

6:25 am - 11:28 amBWI Baltimore/Washington-BOI Boise Air Term. Gowen Fld

7h 03m1 stop Chicago O'Hare Intl

$303United Airlines

Tue, Oct 13 - Thu, Oct 15

2:25 pm - 12:20 amBOI Boise Air Term. Gowen Fld-BWI Baltimore/Washington

7h 55m1 stop Las Vegas Harry Reid Intl

10:10 pm - 11:20 amBWI Baltimore/Washington-BOI Boise Air Term. Gowen Fld

15h 10m1 stop Phoenix Sky Harbor Intl

$308Southwest

Tue, Sep 29 - Tue, Oct 6

3:40 pm - 6:30 amBOI Boise Air Term. Gowen Fld-BWI Baltimore/Washington

12h 50m1 stop Phoenix Sky Harbor Intl

6:20 am - 1:15 pmBWI Baltimore/Washington-BOI Boise Air Term. Gowen Fld

8h 55m1 stop San Diego

$308Southwest

Fri, Nov 6 - Mon, Nov 9

12:31 pm - 9:42 pmBOI Boise Air Term. Gowen Fld-BWI Baltimore/Washington

7h 11m1 stop Chicago O'Hare Intl

8:00 am - 4:42 pmBWI Baltimore/Washington-BOI Boise Air Term. Gowen Fld

10h 42m1 stop San Francisco

$314United Airlines

Sat, Sep 26 - Sat, Oct 3

6:32 pm - 5:40 amGEG Spokane-IAD Washington, D.C. Dulles Intl

8h 08m1 stop Seattle/Tacoma Intl

7:02 am - 12:54 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

8h 52m1 stop Seattle/Tacoma Intl

$337Alaska Airlines

Tue, Sep 22 - Sat, Sep 26

8:31 am - 6:30 amGEG Spokane-BWI Baltimore/Washington

18h 59m1 stop Seattle/Tacoma Intl

7:15 pm - 11:59 pmBWI Baltimore/Washington-GEG Spokane

7h 44m1 stop Seattle/Tacoma Intl

$339Alaska Airlines

Recent last minute flight deals from Idaho to Washington, D.C.

Fri, Sep 4 - Wed, Sep 9

1:59 pm - 12:34 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 35m1 stop Atlanta Hartsfield-Jackson

6:00 am - 1:01 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 01m1 stop Atlanta Hartsfield-Jackson

$333Delta

Sat, Sep 5 - Fri, Sep 11

6:00 am - 5:40 pmGEG Spokane-BWI Baltimore/Washington

8h 40m1 stop San Francisco

6:05 am - 12:23 pmBWI Baltimore/Washington-GEG Spokane

9h 18m1 stop Chicago O'Hare Intl

$339United Airlines

Sat, Sep 5 - Fri, Sep 11

5:00 am - 3:16 pmGEG Spokane-BWI Baltimore/Washington

7h 16m1 stop Denver Intl

12:10 pm - 9:14 pmBWI Baltimore/Washington-GEG Spokane

12h 04m2 stops Chicago O'Hare Intl Denver Intl

$344United Airlines

Sat, Sep 5 - Fri, Sep 11

5:40 am - 6:27 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

9h 47m1 stop Dallas/Fort Worth

6:52 am - 11:54 amIAD Washington, D.C. Dulles Intl-GEG Spokane

8h 02m1 stop Dallas/Fort Worth

$385American Airlines

Fri, Sep 4 - Sun, Sep 6

12:36 pm - 12:34 amGEG Spokane-IAD Washington, D.C. Dulles Intl

8h 58m1 stop Atlanta Hartsfield-Jackson

7:00 am - 12:14 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

8h 14m1 stop Salt Lake City

$385Delta

Thu, Sep 3 - Sun, Sep 6

12:24 pm - 9:59 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

7h 35m1 stop Denver Intl

8:00 am - 3:31 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

9h 31m1 stop Seattle/Tacoma Intl

$402Multiple Airlines

Thu, Sep 3 - Wed, Sep 9

12:24 pm - 9:59 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

7h 35m1 stop Denver Intl

10:59 am - 8:20 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

11h 21m1 stop San Diego

$402Multiple Airlines

Sat, Sep 5 - Fri, Sep 11

8:31 am - 6:30 amGEG Spokane-BWI Baltimore/Washington

18h 59m1 stop Seattle/Tacoma Intl

4:43 pm - 11:11 pmBWI Baltimore/Washington-GEG Spokane

9h 28m1 stop Portland

$439Alaska Airlines

Sat, Sep 5 - Sun, Sep 13

5:20 am - 6:27 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

10h 07m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

6:52 am - 11:54 amIAD Washington, D.C. Dulles Intl-GEG Spokane

8h 02m1 stop Dallas/Fort Worth

$481American Airlines

Fri, Sep 4 - Wed, Sep 9

8:38 pm - 4:44 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

18h 06m2 stops Spokane Seattle/Tacoma Intl

7:00 am - 3:24 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

10h 24m1 stop Seattle/Tacoma Intl

$780Alaska Airlines

Useful Info

Low season	January
High season	April
Cheapest flight	$152

Best time to beat the crowds with an average 31% drop in price.

Most popular time to fly and prices are also 4% lower on average.

Flight from Boise to Washington Dulles Airport

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.

Linthicum Heights

Hanover

Springfield

Gaithersburg

Towson

Oxon Hill

Owings Mills

Greenbelt

Glen Burnie

Chesapeake Beach

Edgewood

Camp Springs

Ellicott City

Pikesville

Hunt Valley

Colonial Beach

Lutherville Timonium

Capitol Heights

Westminster

Stevensville

Everything you need to know for your flight to Washington, D.C.

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$152 Find Cheap Flights from Idaho to Washington, D.C. - Compare and Save

Cheap Flights from Idaho to Washington, D.C.

Recent round-trip flight deals from Idaho to Washington, D.C.

Recent one-way flight deals from Idaho to Washington, D.C.

Recent last minute flight deals from Idaho to Washington, D.C.

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