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.

$167 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

Wed, Dec 16 - Wed, Jan 6

12:20 pm - 12:31 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

10h 11m1 stop Seattle/Tacoma Intl

7:05 am - 12:17 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 12m1 stop Salt Lake City

$321Delta

Mon, Dec 14 - Fri, Jan 8

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

6h 36m1 stop Minneapolis St Paul

7:10 am - 2:10 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 00m1 stop Minneapolis St Paul

$321Delta

Tue, Dec 15 - Fri, Jan 8

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

6h 36m1 stop Minneapolis St Paul

7:00 am - 1:10 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 10m1 stop Seattle/Tacoma Intl

$321Delta

Thu, Nov 26 - Thu, Dec 3

8:28 am - 5:24 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 56m1 stop Chicago O'Hare Intl

8:15 am - 4:50 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

10h 35m1 stop San Francisco

$323United Airlines

Sat, Nov 21 - 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 - 7:01 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

32h 55m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

$326Frontier

Wed, Dec 16 - Tue, Jan 12

6:10 am - 4:08 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

7h 58m1 stop San Francisco

8:15 am - 1:29 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 14m1 stop Denver Intl

$333United Airlines

Thu, Dec 10 - Wed, Dec 16

12:16 pm - 11:30 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 14m1 stop Dallas/Fort Worth

7:14 am - 1:52 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 38m1 stop Dallas/Fort Worth

$343American Airlines

Thu, Feb 18 - Tue, Feb 23

4:00 pm - 5:31 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

11h 31m1 stop Seattle/Tacoma Intl

7:00 am - 3:05 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

10h 05m1 stop Seattle/Tacoma Intl

$343Alaska Airlines

Fri, Dec 4 - Mon, Dec 7

12:56 pm - 5:35 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

14h 39m1 stop Seattle/Tacoma Intl

7:00 am - 2:19 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 19m1 stop Seattle/Tacoma Intl

$343Alaska Airlines

Fri, Dec 4 - Tue, Dec 8

8:15 am - 7:02 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 47m1 stop San Francisco

5:40 pm - 10:59 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 19m1 stop Chicago O'Hare Intl

$343United Airlines

Recent last minute flight deals from Idaho to Dulles Intl

Tue, Nov 3 - Mon, Nov 16

1:53 pm - 5:44 amIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

13h 51m1 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

$518Alaska 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

Sun, Nov 1 - Sat, Nov 7

1:05 pm - 11:35 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

8h 30m1 stop Salt Lake City

12:20 pm - 10:10 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

11h 50m2 stops Detroit Metropolitan Wayne County Salt Lake City

$593Delta

Sun, Nov 1 - Sat, Nov 7

1:05 pm - 12:42 amIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

9h 37m2 stops Salt Lake City Atlanta Hartsfield-Jackson

2:28 pm - 10:10 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

9h 42m2 stops Minneapolis St Paul Salt Lake City

$599Delta

Tue, Nov 3 - Mon, Nov 16

6:36 am - 11:30 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

14h 54m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

2:42 pm - 9:43 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

9h 01m1 stop Dallas/Fort Worth

$607American Airlines

Tue, Nov 3 - Mon, Nov 16

6:36 am - 11:30 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

14h 54m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

6:00 am - 10:59 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

18h 59m2 stops Los Angeles Phoenix Sky Harbor Intl

$801American Airlines

Mon, Nov 2 - Fri, Nov 6

6:37 am - 4:14 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

7h 37m1 stop Seattle/Tacoma Intl

5:17 pm - 11:49 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 32m1 stop Seattle/Tacoma Intl

$825Alaska Airlines

Mon, Nov 2 - Fri, Nov 6

6:00 pm - 4:14 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

20h 14m2 stops Spokane Seattle/Tacoma Intl

6:46 pm - 10:39 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

29h 53m1 stop San Diego

$848Alaska Airlines

Sun, Nov 1 - Sat, Nov 7

1:35 pm - 11:30 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

7h 55m1 stop Dallas/Fort Worth

11:48 am - 10:59 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

13h 11m2 stops Charlotte Douglas Phoenix Sky Harbor Intl

$890American Airlines

Thu, Nov 5 - Mon, Nov 9

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

6h 26m1 stop Minneapolis St Paul

3:00 pm - 9:59 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 59m1 stop Atlanta Hartsfield-Jackson

$1,083Delta

Useful Info

Low season	January
High season	December
Cheapest flight	$167

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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Towson

Martinsburg

Owings Mills

Oxon Hill

Charles Town

Greenbelt

Glen Burnie

Edgewood

Camp Springs

Chesapeake Beach

Ellicott City

Pikesville

Hunt Valley

Capitol Heights

Lutherville Timonium

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IAD

$167 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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