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.

$104 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, Dec 10 - Mon, Dec 14

6:00 pm - 5:35 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 35m1 stop Seattle/Tacoma Intl

5:18 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 41m1 stop Seattle/Tacoma Intl

$225Alaska Airlines

Mon, Nov 9 - Tue, Nov 10

1:53 pm - 5:44 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

13h 51m1 stop 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

$225Alaska Airlines

Sat, Feb 27 - Mon, Mar 1

12:42 pm - 11:51 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 09m1 stop Seattle/Tacoma Intl

3:00 pm - 8:30 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 30m1 stop Minneapolis St Paul

$225Delta

Mon, Nov 16 - Wed, Nov 18

12:13 pm - 12:20 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

10h 07m1 stop Seattle/Tacoma Intl

7:00 am - 4:05 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

11h 05m1 stop Seattle/Tacoma Intl

$225Delta

Fri, Dec 4 - Tue, Dec 8

6:37 am - 4:15 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

7h 38m1 stop Seattle/Tacoma Intl

7:00 am - 3:26 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

10h 26m1 stop Seattle/Tacoma Intl

$254Alaska Airlines

Sat, Jan 9 - Sun, Feb 14

12:42 pm - 11:51 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 09m1 stop Seattle/Tacoma Intl

7:05 am - 2:22 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 17m1 stop Seattle/Tacoma Intl

$269Delta

Wed, Nov 11 - Sun, Nov 15

12:31 pm - 8:50 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 19m1 stop Chicago O'Hare Intl

6:10 am - 11:31 amIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 21m1 stop Chicago O'Hare Intl

$287United Airlines

Thu, Dec 3 - Tue, Dec 22

7:56 pm - 8:12 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

22h 16m2 stops Las Vegas Harry Reid Intl Dallas/Fort Worth

8:51 pm - 4:48 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

21h 57m1 stop Las Vegas Harry Reid Intl

$306Frontier

Sat, Nov 7 - Wed, Nov 11

7:00 am - 3:48 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 48m1 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

$314American Airlines

Tue, Jan 26 - Sat, Jan 30

2:35 pm - 11:26 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 51m1 stop Denver Intl

4:15 pm - 9:33 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 18m1 stop Denver Intl

$343United Airlines

Recent last minute flight deals from Idaho to Dulles Intl

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

$403Alaska Airlines

Fri, Oct 30 - Mon, Nov 2

12:31 pm - 9:10 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 39m1 stop Chicago O'Hare Intl

2:38 pm - 9:15 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 37m1 stop San Francisco

$403United Airlines

Fri, Oct 30 - Mon, Nov 2

12:31 pm - 9:10 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 39m1 stop Chicago O'Hare Intl

2:38 pm - 9:15 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 37m1 stop San Francisco

$403United Airlines

Fri, Oct 30 - Mon, Nov 2

5:29 pm - 8:44 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

13h 15m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

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

10h 00m1 stop Dallas/Fort Worth

$479American Airlines

Fri, Oct 30 - Mon, Nov 2

5:29 pm - 8:44 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

13h 15m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

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

10h 00m1 stop Dallas/Fort Worth

$479American Airlines

Sun, Nov 1 - Sat, Nov 7

6:04 am - 4:14 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 10m1 stop Seattle/Tacoma Intl

7:46 am - 3:18 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

9h 32m1 stop Seattle/Tacoma Intl

$588Alaska Airlines

Fri, Oct 30 - Tue, Nov 3

6:09 am - 4:30 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 21m1 stop Seattle/Tacoma Intl

5:17 pm - 3:18 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

24h 01m1 stop Seattle/Tacoma Intl

$588Alaska Airlines

Fri, Oct 30 - Tue, Nov 3

6:56 pm - 10:10 amIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

13h 14m2 stops Salt Lake City Atlanta Hartsfield-Jackson

6:13 am - 12:22 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

8h 09m1 stop Salt Lake City

$593Delta

Fri, Oct 30 - Tue, Nov 3

6:56 pm - 10:10 amIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

13h 14m2 stops Salt Lake City Atlanta Hartsfield-Jackson

6:05 am - 12:22 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

8h 17m2 stops Detroit Metropolitan Wayne County Salt Lake City

$599Delta

Wed, Oct 28 - Sat, Oct 31

5:00 am - 9:08 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

14h 08m2 stops Denver Intl New York LaGuardia

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

7h 20m1 stop Chicago O'Hare Intl

$868United Airlines

Useful Info

Low season	January
High season	December
Cheapest flight	$104

Best time to beat the crowds with an average 8% drop in price.

Most popular time to fly and prices are also 6% 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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IAD

$104 Find Cheap Flights from Idaho to Washington Dulles Airport - Compare and Save

Cheap Flights from Idaho to Dulles Intl

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