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.

$152 CHEAP FLIGHTS from Idaho to Washington Dulles (IAD)

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Flight Deals

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, Oct 19 - Thu, Oct 22

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, Dec 3 - Mon, Dec 7

3:00 pm - 11:36 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 36m1 stop Minneapolis St Paul

7:06 pm - 12:10 amIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 04m1 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

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

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

Tue, Sep 22 - Tue, Sep 29

10:34 am - 10:56 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

10h 22m1 stop Seattle/Tacoma Intl

6:47 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 12m1 stop Minneapolis St Paul

$303Delta

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

Tue, Oct 20 - Fri, Oct 30

2:20 pm - 1:06 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 46m1 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

$327United 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

Sat, Sep 26 - Mon, Sep 28

2:16 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

7h 43m1 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

$351Alaska Airlines

Tue, Oct 13 - Wed, Oct 28

1:05 pm - 1:06 amGEG Spokane-IAD Washington, D.C. Dulles Intl

9h 01m1 stop San Francisco

6:11 am - 12:29 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

9h 18m1 stop Chicago O'Hare Intl

$367United Airlines

Recent last minute flight deals from Idaho to Dulles Intl

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

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

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

Sat, Sep 5 - Fri, Sep 11

9:52 am - 7:59 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

7h 07m1 stop Salt Lake City

7:25 am - 3:14 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

10h 49m1 stop Seattle/Tacoma Intl

$385Delta

Sat, Sep 5 - Sun, Sep 13

6:00 am - 7:05 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

10h 05m1 stop San Francisco

6:30 am - 12:35 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

9h 05m1 stop Denver Intl

$476United Airlines

Sat, Sep 5 - Fri, Sep 11

5:40 am - 9:53 pmGEG Spokane-IAD Washington, D.C. Dulles Intl

13h 13m2 stops Dallas/Fort Worth Charlotte Douglas

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

8h 02m1 stop Dallas/Fort Worth

$481American 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 - Sun, Sep 6

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

7h 32m1 stop Seattle/Tacoma Intl

9:03 am - 8:46 pmIAD Washington, D.C. Dulles Intl-GEG Spokane

14h 43m2 stops Seattle/Tacoma Intl Boise Air Term. Gowen Fld

$635Alaska Airlines

Fri, Sep 4 - Wed, Sep 9

7:30 am - 11:59 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

14h 29m2 stops Spokane Seattle/Tacoma Intl

7:00 am - 2:22 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 22m1 stop Seattle/Tacoma Intl

$655Alaska Airlines

Thu, Sep 3 - Sun, Sep 6

8:23 am - 5:37 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

7h 14m1 stop Chicago O'Hare Intl

8:15 am - 1:38 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 23m1 stop Denver Intl

$810United Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$152

Best time to beat the crowds with an average 7% 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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Towson

Martinsburg

Oxon Hill

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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

$152 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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