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.

$119 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

Sun, Nov 22 - Wed, Dec 2

7:55 pm - 5:10 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

31h 15m1 stop Las Vegas Harry Reid Intl

12:06 pm - 8:54 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

34h 48m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

$294Frontier

Sun, Nov 22 - Tue, Dec 1

7:55 pm - 5:10 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

31h 15m1 stop Las Vegas Harry Reid Intl

10:33 pm - 8:54 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

48h 21m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

$297Frontier

Tue, Nov 10 - Mon, Nov 16

6:43 pm - 5:40 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

20h 57m1 stop San Diego

6:46 pm - 1:30 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

20h 44m1 stop San Diego

$323Alaska Airlines

Mon, Nov 16 - Wed, Nov 18

1:41 pm - 12:41 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 00m1 stop Atlanta Hartsfield-Jackson

7:00 am - 12:24 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 24m1 stop Salt Lake City

$323Delta

Mon, Nov 23 - Wed, Dec 2

11:10 pm - 9:09 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

7h 59m1 stop Atlanta Hartsfield-Jackson

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

7h 04m1 stop Minneapolis St Paul

$323Delta

Thu, Dec 31 - Tue, Jan 5

2:43 pm - 12:59 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 16m1 stop Denver Intl

8:25 am - 3:03 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 38m1 stop San Francisco

$323United Airlines

Sat, Oct 24 - Wed, Oct 28

12:26 pm - 10:52 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 26m1 stop Chicago O'Hare Intl

5:20 pm - 10:59 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 39m1 stop Denver Intl

$323United Airlines

Sat, Oct 24 - Wed, Oct 28

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

9h 09m1 stop Dallas/Fort Worth

6:42 am - 1:51 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 09m1 stop Dallas/Fort Worth

$323American Airlines

Wed, Oct 28 - Sat, Oct 31

12:58 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 01m1 stop Seattle/Tacoma Intl

7:02 am - 3:23 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

10h 21m1 stop Seattle/Tacoma Intl

$361Alaska Airlines

Tue, Nov 10 - Mon, Nov 16

10:41 am - 5:44 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

17h 03m2 stops Las Vegas Harry Reid Intl Seattle/Tacoma Intl

6:46 pm - 1:30 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

20h 44m1 stop San Diego

$368Alaska Airlines

Recent last minute flight deals from Idaho to Dulles Intl

Fri, Oct 9 - Sun, Oct 11

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

$298Frontier

Fri, Oct 9 - Fri, Oct 16

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

$298Frontier

Sat, Oct 10 - Sat, Oct 24

3:00 pm - 11:26 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 26m1 stop Minneapolis St Paul

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

7h 12m1 stop Minneapolis St Paul

$353Delta

Fri, Oct 9 - 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

$358Frontier

Sat, Oct 10 - Fri, Nov 6

6:50 pm - 5:46 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 56m1 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

$377United Airlines

Thu, Oct 8 - Sun, Oct 11

1:06 pm - 11:35 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 29m1 stop Salt Lake City

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

7h 12m1 stop Minneapolis St Paul

$461Delta

Sat, Oct 10 - Fri, Nov 6

12:58 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 01m1 stop Seattle/Tacoma Intl

6:46 pm - 3:28 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

22h 42m2 stops San Diego Las Vegas Harry Reid Intl

$487Alaska Airlines

Thu, Oct 8 - Sun, Oct 11

12:08 pm - 10:49 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 41m1 stop Seattle/Tacoma Intl

6:13 am - 10:42 amIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

6h 29m1 stop Salt Lake City

$541Delta

Fri, Oct 9 - Mon, Oct 12

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

14h 29m2 stops Spokane Seattle/Tacoma Intl

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

20h 23m1 stop San Diego

$797Alaska Airlines

Thu, Oct 8 - Sun, Oct 11

2:44 pm - 7:23 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

14h 39m2 stops Denver Intl New York LaGuardia

6:35 am - 2:03 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 28m1 stop San Francisco

$928United Airlines

Useful Info

Low season	January
High season	June
Cheapest flight	$119

Best time to beat the crowds with an average 10% drop in price.

Most popular time to fly with an average 10% increase in price.

Flight from Idaho Falls 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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Martinsburg

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Charles Town

Greenbelt

Glen Burnie

Edgewood

Chesapeake Beach

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Ellicott City

Pikesville

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Colonial Beach

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IAD

$119 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

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Recent last minute flight deals from Idaho to Dulles Intl

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