How does KAYAK find such low prices on flights from Idaho to Washington, D.C.?

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, D.C..

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to Washington, D.C.?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. 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, D.C.?

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, D.C. 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, D.C.?

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, D.C. from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$120 CHEAP FLIGHTS from Idaho to Washington, D.C.

Save 20% 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 Washington, D.C.

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 Washington, D.C.

Tue, Sep 22 - Tue, Sep 29

12:59 pm - 9:58 pm

BOI

DCA

6h 59m

1 stop

7:00 am - 12:04 pm

DCA

BOI

7h 04m

1 stop

$240Frontier

Thu, Aug 13 - Wed, Aug 19

1:24 pm - 12:51 pm

BOI

DCA

21h 27m

1 stop

1:59 pm - 11:29 am

DCA

BOI

23h 30m

1 stop

$241Frontier

Thu, Aug 20 - Sat, Aug 29

10:12 am - 8:04 am

GEG

IAD

18h 52m

1 stop

8:59 am - 9:22 am

IAD

GEG

27h 23m

1 stop

$290Multiple Airlines

Thu, Aug 20 - Thu, Aug 27

12:24 pm - 9:59 pm

BOI

DCA

7h 35m

1 stop

10:59 am - 8:20 pm

DCA

BOI

11h 21m

1 stop

$291Multiple Airlines

Thu, Aug 27 - Sat, Aug 29

11:10 pm - 9:20 am

BOI

IAD

8h 10m

1 stop

6:00 am - 1:42 pm

IAD

BOI

9h 42m

1 stop

$293Delta

Thu, Aug 27 - Sat, Aug 29

11:10 pm - 9:10 am

BOI

DCA

8h 00m

1 stop

5:59 pm - 10:46 pm

DCA

BOI

6h 47m

1 stop

$293Delta

Thu, Aug 20 - Tue, Aug 25

12:10 pm - 10:45 pm

BOI

BWI

8h 35m

1 stop

9:40 am - 2:50 pm

BWI

BOI

7h 10m

1 stop

$293Southwest

Wed, Sep 9 - Wed, Sep 9

6:00 am - 3:40 pm

BOI

BWI

7h 40m

1 stop

4:43 pm - 11:55 pm

BWI

BOI

9h 12m

1 stop

$297Alaska Airlines

Tue, Aug 18 - Tue, Aug 25

2:20 pm - 6:30 am

BOI

BWI

14h 10m

1 stop

5:55 pm - 11:10 pm

BWI

BOI

7h 15m

1 stop

$298Southwest

Wed, Sep 9 - Sat, Sep 19

5:21 pm - 5:40 am

GEG

IAD

9h 19m

1 stop

7:00 am - 12:39 pm

IAD

GEG

8h 39m

1 stop

$318Alaska Airlines

Useful Info

Low season	January
High season	April
Cheapest flight	$120

Best time to beat the crowds with an average 29% drop in price.

Most popular time to fly and prices are also 1% lower on average.

Flight from Boise to Reagan Washington National Airport

How does KAYAK find such low prices on flights from Idaho to Washington, D.C.?
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, D.C..
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to Washington, D.C.?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. 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, D.C.?
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, D.C. 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, D.C.?
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, D.C. from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Linthicum Heights

Springfield

Hanover

Gaithersburg

Towson

Oxon Hill

Owings Mills

Greenbelt

Glen Burnie

Edgewood

Camp Springs

Ellicott City

Chesapeake Beach

Pikesville

Colonial Beach

Hunt Valley

Lutherville Timonium

Westminster

Stevensville

Capitol Heights

Everything you need to know for your flight to Washington, D.C.

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Idaho

First Class flights to Washington, D.C.

Business Class flights to Washington, D.C.

Premium Economy Class flights to Washington, D.C.

Economy Class flights to Washington, D.C.

$120 Find Cheap Flights from Idaho to Washington, D.C. - Compare and Save

Cheap Flights from Idaho to Washington, D.C.

Recent round-trip flight deals from Idaho to Washington, D.C.

Recent one-way flight deals from Idaho to Washington, D.C.

Recent last minute flight deals from Idaho to Washington, D.C.

Good to know

Low season

High season

Cheapest flight

FAQs for booking flights from Idaho to Washington, D.C.

Traveling to a place near Washington, D.C.?

Everything you need to know for your flight to Washington, D.C.

Cabin class types available on flights to Idaho

Complete your trip to Washington, D.C. with a hotel stay or car rental

Find direct flights for Washington, D.C.

Flights to other popular destinations

Flights from domestic origins to Washington, D.C.

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

Find deals for your return flight