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.

$129 CHEAP FLIGHTS from Idaho to Washington Dulles (IAD)

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

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

Wed, Dec 2 - Fri, Dec 4

7:22 am - 5:39 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 17m1 stop San Diego

6:42 pm - 10:27 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

29h 45m1 stop San Diego

$321Alaska Airlines

Wed, Dec 2 - Fri, Dec 4

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

10h 11m1 stop Seattle/Tacoma Intl

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

7h 04m1 stop Minneapolis St Paul

$321Delta

Sat, Feb 20 - Tue, Feb 23

1:53 pm - 11:50 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

7h 57m1 stop Seattle/Tacoma Intl

7:00 am - 1:13 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 13m1 stop Seattle/Tacoma Intl

$321Delta

Thu, Dec 3 - Thu, Dec 10

1:47 pm - 12:41 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 54m1 stop Atlanta Hartsfield-Jackson

8:07 am - 1:44 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 37m1 stop Atlanta Hartsfield-Jackson

$321Delta

Fri, Jan 22 - Sun, Jan 24

6:44 pm - 5:50 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

21h 06m1 stop San Diego

5:30 pm - 11:44 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 14m1 stop Seattle/Tacoma Intl

$356Alaska Airlines

Thu, Jan 21 - Sun, Jan 24

6:37 am - 4:27 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

7h 50m1 stop Seattle/Tacoma Intl

5:30 pm - 11:44 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 14m1 stop Seattle/Tacoma Intl

$356Alaska Airlines

Tue, Nov 17 - Mon, Nov 23

10:34 am - 7:30 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 56m1 stop Denver Intl

4:15 pm - 11:33 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 18m1 stop San Francisco

$362United Airlines

Fri, Dec 4 - Tue, Dec 15

7:56 pm - 2:49 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

16h 53m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson

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

9h 19m1 stop Seattle/Tacoma Intl

$382Multiple Airlines

Mon, Dec 28 - Mon, Jan 4

5:33 pm - 6:07 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

10h 34m1 stop Las Vegas Harry Reid Intl

7:13 pm - 1:28 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

20h 15m1 stop San Diego

$382Multiple Airlines

Tue, Nov 17 - Sun, Nov 22

10:34 am - 7:30 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 56m1 stop Denver Intl

4:15 pm - 11:33 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 18m1 stop San Francisco

$397United Airlines

Recent last minute flight deals from Idaho to Dulles Intl

Wed, Nov 11 - Sat, Nov 14

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

7h 37m1 stop Seattle/Tacoma Intl

7:46 am - 3:24 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 38m1 stop Seattle/Tacoma Intl

$403Alaska Airlines

Wed, Nov 11 - Sat, Nov 14

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

$403Alaska Airlines

Tue, Nov 10 - Thu, Nov 12

3:00 pm - 11:21 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 21m1 stop Minneapolis St Paul

6:58 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 01m1 stop Minneapolis St Paul

$403Delta

Mon, Nov 9 - Wed, Nov 11

1:19 pm - 11:47 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 28m1 stop Salt Lake City

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

7h 24m1 stop Salt Lake City

$403Delta

Mon, Nov 9 - Thu, Nov 12

10:34 am - 7:30 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 56m1 stop Denver Intl

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

7h 20m1 stop Chicago O'Hare Intl

$403United Airlines

Wed, Nov 11 - Sat, Nov 14

6:06 am - 6:47 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

10h 41m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

7:18 am - 1:51 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

8h 33m1 stop Dallas/Fort Worth

$455American Airlines

Mon, Nov 9 - Thu, Nov 12

8:00 am - 11:30 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

13h 30m2 stops Phoenix Sky Harbor Intl 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

$479American Airlines

Mon, Nov 9 - Thu, Nov 12

7:10 pm - 12:05 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

14h 55m2 stops San Francisco Cleveland Hopkins Intl

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

7h 20m1 stop Chicago O'Hare Intl

$538United Airlines

Mon, Nov 9 - Thu, Nov 12

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

$559Alaska Airlines

Tue, Nov 10 - Sat, Nov 14

6:00 am - 6:17 pmIDA Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl

10h 17m2 stops Salt Lake City Minneapolis St Paul

7:00 am - 12:15 pmIAD Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field

7h 15m1 stop Salt Lake City

$564Delta

Useful Info

Low season	January
High season	December
Cheapest flight	$129

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.

Winchester

Linthicum Heights

Hanover

Springfield

Gaithersburg

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

More options for your flight to Dulles Intl

Add a hotel or car rental

Airports

Cabin class

Direct Flights

Origins

Other airports

Other destinations

Return flight

Complete your trip to Dulles Intl with a hotel stay or car rental

Car rentals in Washington, D.C.

Hotels in Washington, D.C.

Vacations in Washington, D.C.

IAD

$129 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

Good to know

Low season

High season

Cheapest flight

FAQs for booking Idaho to Washington Dulles Airport flights

Traveling to a place near Dulles Intl?

More options for your flight to Dulles Intl

Complete your trip to Dulles Intl with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights to Dulles Intl

Find direct flights for Dulles Intl

Flights from domestic origins to Idaho

Choose which airport to fly into in Washington, D.C.

Flights to other popular destinations

Find deals for your return flight