How does KAYAK find such low prices on flights from Idaho to Washington Dulles Airport?

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 Dulles Airport.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to Washington Dulles Airport?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport 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 Dulles Airport?

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 Dulles Airport 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 Dulles Airport?

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 Dulles Airport from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$108 CHEAP FLIGHTS from Idaho to Washington Dulles (IAD)

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Cheap Flights from Idaho to Dulles Intl

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

Round-trip

One-way

Last minute

Recent round-trip flight deals from Idaho to Dulles Intl

Mon, Sep 14 - Thu, Sep 17

2:50 pm - 6:20 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

13h 30m1 stop Las Vegas Harry Reid Intl

6:00 am - 1:55 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 55m1 stop Las Vegas Harry Reid Intl

$204Frontier

Fri, Oct 2 - Mon, Oct 12

2:50 pm - 6:20 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

13h 30m1 stop Las Vegas Harry Reid Intl

6:00 am - 1:55 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 55m1 stop Las Vegas Harry Reid Intl

$223Frontier

Thu, Oct 8 - Mon, Oct 12

2:50 pm - 6:20 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

13h 30m1 stop Las Vegas Harry Reid Intl

6:00 am - 1:55 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 55m1 stop Las Vegas Harry Reid Intl

$268Frontier

Sat, Sep 19 - Sat, Sep 26

5:00 am - 1:30 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 30m1 stop Denver Intl

5:20 pm - 10:58 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 38m1 stop Chicago O'Hare Intl

$303United Airlines

Mon, Oct 26 - Wed, Nov 18

12:31 pm - 9:13 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 42m1 stop Chicago O'Hare Intl

2:05 pm - 9:32 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 27m1 stop Denver Intl

$303United Airlines

Tue, Sep 22 - Tue, Sep 29

12:17 pm - 10:56 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 39m1 stop Seattle/Tacoma Intl

6:10 am - 1:44 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 34m1 stop Minneapolis St Paul

$303Delta

Mon, Oct 19 - Thu, Oct 29

11:10 pm - 9:19 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 09m1 stop Atlanta Hartsfield-Jackson

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

7h 12m1 stop Minneapolis St Paul

$303Delta

Sat, Oct 17 - Wed, Oct 21

12:26 pm - 9:11 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 45m1 stop Chicago O'Hare Intl

6:10 am - 11:28 amIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 18m1 stop Chicago O'Hare Intl

$303United Airlines

Mon, Oct 5 - Tue, Oct 6

4:41 pm - 5:40 amGEG Spokane-IAD Washington, D.C. Dulles Intl

9h 59m1 stop Seattle/Tacoma Intl

7:24 pm - 10:50 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

30h 26m1 stop San Diego

$338Alaska Airlines

Thu, Sep 17 - Mon, Sep 21

4:20 pm - 5:40 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

11h 20m1 stop Seattle/Tacoma Intl

5:57 pm - 9:56 amIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

17h 59m1 stop Seattle/Tacoma Intl

$343Alaska Airlines

Recent last minute flight deals from Idaho to Dulles Intl

Sat, Aug 22 - Wed, Aug 26

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

8h 35m1 stop Atlanta Hartsfield-Jackson

7:10 am - 3:18 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

10h 08m1 stop Seattle/Tacoma Intl

$363Delta

Sat, Aug 22 - Mon, Aug 24

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

8h 35m1 stop Atlanta Hartsfield-Jackson

7:10 am - 3:18 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

10h 08m1 stop Seattle/Tacoma Intl

$363Delta

Sat, Aug 22 - Tue, Aug 25

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

8h 35m1 stop Atlanta Hartsfield-Jackson

7:10 am - 3:18 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

10h 08m1 stop Seattle/Tacoma Intl

$363Delta

Sat, Aug 22 - Tue, Aug 25

1:27 pm - 11:59 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

7h 32m1 stop Seattle/Tacoma Intl

5:47 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

9h 12m1 stop Seattle/Tacoma Intl

$484Alaska Airlines

Fri, Aug 21 - Wed, Sep 9

5:40 am - 8:56 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

12h 16m2 stops Dallas/Fort Worth Charlotte Douglas

6:52 am - 11:55 amIAD Washington, D.C. Dulles Intl-GEG Spokane

8h 03m1 stop Dallas/Fort Worth

$545American Airlines

Mon, Aug 24 - Tue, Sep 1

5:40 am - 8:56 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

12h 16m2 stops Dallas/Fort Worth Charlotte Douglas

2:53 pm - 8:42 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

8h 49m1 stop Dallas/Fort Worth

$557American Airlines

Mon, Aug 24 - Mon, Aug 24

5:52 am - 4:44 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

7h 52m1 stop Seattle/Tacoma Intl

5:47 pm - 10:25 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

7h 38m1 stop Seattle/Tacoma Intl

$559Alaska Airlines

Fri, Aug 21 - Tue, Aug 25

1:27 pm - 11:59 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

7h 32m1 stop Seattle/Tacoma Intl

9:03 am - 2:47 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

8h 44m1 stop Seattle/Tacoma Intl

$564Alaska Airlines

Fri, Aug 21 - Mon, Aug 24

4:04 pm - 12:32 amIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

6h 28m1 stop Denver Intl

6:30 am - 1:29 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

8h 59m1 stop Denver Intl

$654United Airlines

Fri, Aug 21 - Mon, Aug 24

10:35 am - 9:08 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 33m1 stop Denver Intl

2:43 pm - 9:18 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

8h 35m1 stop Denver Intl

$689United Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$108

Best time to beat the crowds with an average 6% drop in price.

Most popular time to fly and prices are also 15% lower on average.

Flight from Boise to Washington Dulles Airport

How does KAYAK find such low prices on flights from Idaho to Washington Dulles Airport?
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 Dulles Airport.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to Washington Dulles Airport?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport 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 Dulles Airport?
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 Dulles Airport 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 Dulles Airport?
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 Dulles Airport from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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Gaithersburg

Towson

Martinsburg

Oxon Hill

Owings Mills

Charles Town

Greenbelt

Glen Burnie

Chesapeake Beach

Edgewood

Camp Springs

Ellicott City

Pikesville

Hunt Valley

Colonial Beach

Lutherville Timonium

Everything you need to know for your flight to Dulles Intl

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Washington Dulles Airport (IAD)

IAD

$108 Find Cheap Flights from Idaho to Washington Dulles Airport - Compare and Save

Cheap Flights from Idaho to Dulles Intl

Recent round-trip flight deals from Idaho to Dulles Intl

Recent one-way flight deals from Idaho to Dulles Intl

Recent last minute flight deals from Idaho to Dulles Intl

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FAQs for booking Idaho to Washington Dulles Airport flights

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Everything you need to know for your flight to Dulles Intl

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Complete your trip to Dulles Intl with a hotel stay or car rental

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