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.

$128 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

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

$244Frontier

Thu, Oct 8 - Thu, Oct 15

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

$244Frontier

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

$244Frontier

Tue, Sep 22 - Tue, Sep 29

2:11 pm - 12:41 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 30m1 stop Atlanta Hartsfield-Jackson

7:00 am - 12:16 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 16m1 stop Salt Lake City

$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

Mon, Oct 26 - Thu, Oct 29

7:10 pm - 5:35 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 25m1 stop San Francisco

6:11 am - 11:31 amIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 20m1 stop Chicago O'Hare Intl

$303United Airlines

Sat, Sep 19 - Sat, Sep 26

2:41 pm - 11:19 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 38m1 stop Denver Intl

2:47 pm - 9:39 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 52m1 stop San Francisco

$303United Airlines

Thu, Sep 17 - Tue, Sep 22

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

8h 39m1 stop Seattle/Tacoma Intl

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

9h 51m1 stop Seattle/Tacoma Intl

$303Delta

Wed, Oct 14 - Mon, Oct 26

7:20 am - 5:50 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 30m1 stop San Diego

7:24 pm - 1:47 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

20h 23m1 stop San Diego

$343Alaska Airlines

Sat, Sep 26 - Mon, Sep 28

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

11h 20m1 stop Seattle/Tacoma Intl

7:47 pm - 2:02 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

20h 15m1 stop San Diego

$343Alaska Airlines

Recent last minute flight deals from Idaho to Dulles Intl

Fri, Aug 28 - Tue, Sep 1

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

Thu, Aug 27 - Sun, Aug 30

11:09 am - 11:59 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

9h 50m1 stop Seattle/Tacoma Intl

7:00 am - 12:24 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

8h 24m1 stop Salt Lake City

$564Delta

Fri, Aug 28 - Wed, Sep 2

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

9h 47m1 stop Dallas/Fort Worth

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

8h 49m1 stop Dallas/Fort Worth

$564American Airlines

Fri, Aug 28 - Wed, Sep 2

6:45 am - 6:09 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

8h 24m1 stop Minneapolis St Paul

6:00 pm - 11:09 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

8h 09m1 stop Minneapolis St Paul

$564Delta

Fri, Aug 28 - Wed, Sep 2

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

12h 16m2 stops Dallas/Fort Worth Charlotte Douglas

6:09 am - 11:54 amIAD Washington, D.C. Dulles Intl-GEG Spokane

8h 45m1 stop Dallas/Fort Worth

$569American Airlines

Fri, Aug 28 - Wed, Sep 2

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

12h 16m2 stops Dallas/Fort Worth Charlotte Douglas

6:10 am - 1:37 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

10h 27m2 stops Charlotte Douglas Chicago O'Hare Intl

$665American Airlines

Fri, Aug 28 - Tue, Sep 1

5:52 pm - 5:40 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 48m1 stop Seattle/Tacoma Intl

9:03 am - 7:08 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

12h 05m2 stops Seattle/Tacoma Intl Spokane

$710Alaska Airlines

Fri, Aug 28 - Thu, Sep 3

2:25 pm - 11:19 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

6h 54m1 stop Denver Intl

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

8h 59m1 stop Denver Intl

$771United Airlines

Thu, Aug 27 - Mon, Aug 31

6:49 pm - 6:14 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

21h 25m1 stop San Diego

5:47 pm - 11:44 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 57m1 stop Seattle/Tacoma Intl

$773Alaska Airlines

Thu, Aug 27 - Sun, Aug 30

5:00 am - 4:35 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

8h 35m2 stops Denver Intl Cincinnati Cinci./N. Kentucky

4:15 pm - 8:46 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

7h 31m1 stop Denver Intl

$908United Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$128

Best time to beat the crowds with an average 7% drop in price.

Most popular time to fly and prices are also 14% 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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Hanover

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Gaithersburg

Towson

Martinsburg

Oxon Hill

Owings Mills

Charles Town

Greenbelt

Glen Burnie

Chesapeake Beach

Edgewood

Ellicott City

Camp Springs

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

$128 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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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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