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.

$132 CHEAP FLIGHTS from Idaho to Washington Dulles (IAD)

Save 21% 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

Thu, Nov 12 - Mon, Nov 16

4:16 pm - 5:44 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

11h 28m1 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

$315Alaska 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

$315Alaska Airlines

Sat, Oct 10 - Sat, Oct 24

1:40 pm - 12:42 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 02m1 stop Atlanta Hartsfield-Jackson

6:00 am - 1:34 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 34m1 stop Atlanta Hartsfield-Jackson

$315Delta

Tue, Jan 5 - Mon, Jan 18

2:35 pm - 11:51 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

7h 16m1 stop Seattle/Tacoma Intl

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

10h 55m1 stop Seattle/Tacoma Intl

$315Delta

Mon, Oct 26 - Thu, Oct 29

7:10 pm - 5:35 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 25m1 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

$315United Airlines

Wed, Oct 14 - Sat, Oct 24

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

8h 56m1 stop San Francisco

6:10 am - 11:28 amIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

7h 18m1 stop Chicago O'Hare Intl

$315United Airlines

Thu, Nov 5 - Mon, Nov 9

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

$315Alaska Airlines

Wed, Jan 6 - Thu, Jan 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 - 4:00 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

10h 55m1 stop Seattle/Tacoma Intl

$315Delta

Fri, Oct 16 - Fri, Oct 23

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

$316Frontier

Mon, Oct 19 - Mon, Oct 26

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

$322Frontier

Recent last minute flight deals from Idaho to Dulles Intl

Mon, Sep 28 - Sat, Oct 3

5:52 pm - 5:40 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 48m1 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

$383Alaska Airlines

Fri, Sep 25 - Wed, Sep 30

11:10 pm - 10:03 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 53m1 stop Atlanta Hartsfield-Jackson

8:08 am - 1:01 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

6h 53m1 stop Atlanta Hartsfield-Jackson

$383Delta

Tue, Sep 29 - Mon, Oct 5

5:00 am - 1:30 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

6h 30m1 stop Denver Intl

6:35 am - 1:38 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 03m1 stop Denver Intl

$383United Airlines

Mon, Sep 28 - Fri, Oct 2

12:17 pm - 10:56 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 39m1 stop Seattle/Tacoma Intl

6:00 am - 1:06 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 06m1 stop Atlanta Hartsfield-Jackson

$383Delta

Tue, Sep 29 - Tue, Oct 6

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

10h 22m1 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

$383Delta

Tue, Sep 29 - Tue, Oct 6

6:30 am - 8:24 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

11h 54m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

3:08 pm - 10:29 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 21m1 stop Dallas/Fort Worth

$436American Airlines

Fri, Sep 25 - Mon, Sep 28

5:52 pm - 5:40 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

9h 48m1 stop 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

$438Alaska Airlines

Mon, Sep 28 - Fri, Oct 2

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

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

20h 00m1 stop San Diego

$486Multiple Airlines

Fri, Sep 25 - Thu, Oct 1

6:50 pm - 7:01 amBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

10h 11m1 stop San Francisco

4:15 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

9h 44m1 stop San Francisco

$513United Airlines

Tue, Sep 29 - Mon, Oct 5

6:23 am - 4:54 pmBOI Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl

8h 31m1 stop Seattle/Tacoma Intl

7:02 am - 7:42 pmIAD Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld

14h 40m2 stops Seattle/Tacoma Intl Spokane

$607Alaska Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$132

Best time to beat the crowds with an average 5% drop in price.

Most popular time to fly and prices are also 10% 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

Oxon Hill

Owings Mills

Charles Town

Greenbelt

Glen Burnie

Edgewood

Chesapeake Beach

Camp Springs

Ellicott City

Pikesville

Hunt Valley

Colonial Beach

Capitol Heights

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

$132 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