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.. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$100 CHEAP FLIGHTS from Idaho to Washington, D.C.

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

...and more

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41,299,237 searches in the past 7 days on KAYAK

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Cheapest round-trip

$251

Overall average: $539

Delta

Wed 4/1Tue 4/7

BOI - IAD • 1 stop

Cheapest one-way

$100

Typical prices: $385-$2,571

Frontier

Thu 4/23

BOI - DCA • 1 stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Washington, D.C.!

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.

Wed, Apr 1 - Tue, Apr 7

1:45 pm - 11:49 pm

BOI

IAD

8h 04m

1 stop

7:00 am - 1:05 pm

IAD

BOI

8h 05m

1 stop

$251Delta

Tue, Mar 24 - Wed, Apr 1

6:30 am - 5:20 pm

GEG

IAD

7h 50m

1 stop

6:10 pm - 12:10 am

IAD

GEG

9h 00m

1 stop

$251Southwest

Tue, Apr 21 - Sat, May 2

7:19 am - 9:00 pm

GEG

DCA

10h 41m

1 stop

8:59 am - 10:20 pm

DCA

GEG

16h 21m

1 stop

$251Alaska Airlines

Sat, Apr 25 - Tue, Apr 28

5:40 am - 3:27 pm

BOI

DCA

7h 47m

1 stop

4:39 pm - 12:17 am

DCA

BOI

9h 38m

1 stop

$251Delta

Wed, Apr 1 - Tue, Apr 7

1:45 pm - 11:49 pm

BOI

IAD

8h 04m

1 stop

12:14 pm - 10:04 pm

IAD

BOI

11h 50m

2 stops

$256Delta

Tue, Mar 24 - Tue, Mar 31

12:25 pm - 11:50 pm

GEG

DCA

8h 25m

1 stop

6:00 am - 11:44 am

DCA

GEG

8h 44m

1 stop

$269American Airlines

Tue, Mar 24 - Wed, Apr 1

12:25 pm - 11:50 pm

GEG

DCA

8h 25m

1 stop

6:00 am - 11:44 am

DCA

GEG

8h 44m

1 stop

$275American Airlines

Wed, May 20 - Sat, May 30

12:35 pm - 1:24 am

GEG

IAD

9h 49m

1 stop

2:35 pm - 8:51 pm

IAD

GEG

9h 16m

1 stop

$281United Airlines

Tue, Apr 21 - Tue, Apr 21

5:00 am - 1:14 pm

BOI

IAD

6h 14m

1 stop

5:20 pm - 10:35 pm

IAD

BOI

7h 15m

1 stop

$284United Airlines

Wed, Mar 25 - Tue, Mar 31

5:59 pm - 5:40 am

IDA

IAD

9h 41m

1 stop

7:11 pm - 4:19 pm

IAD

IDA

23h 08m

1 stop

$309Alaska Airlines

Useful Info

Low season	January
High season	June
Cheapest flight	$100

Best time to beat the crowds with an average 22% drop in price.

Most popular time to fly and prices are also 13% 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

Hanover

Springfield

Gaithersburg

Towson

Oxon Hill

Owings Mills

Glen Burnie

Greenbelt

Ellicott City

Edgewood

Colonial Beach

Pikesville

Lutherville Timonium

Hunt Valley

Camp Springs

Westminster

Stevensville

Hyattsville

Chesapeake Beach

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.

$100 Find Cheap Flights from Idaho to Washington, D.C.

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

Everything you should know

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

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

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.

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