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>

$95 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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Cheapest round-trip

$140

Overall average: $714

Frontier

Thu 12/4Thu 12/11

BOI - DCA • 1 stop

Cheapest one-way

$73

Typical prices: $453-$479

Frontier

Sun 1/25

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.

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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.

Thu, Dec 4 - Thu, Dec 11

12:44 pm - 9:59 pmBOI-DCA

7h 15m1 stop

2:00 pm - 11:49 amDCA-BOI

23h 49m1 stop

$140Frontier

Find Deal

Thu, Dec 4 - Thu, Dec 11

12:44 pm - 9:59 pmBOI-DCA

7h 15m1 stop

8:00 am - 11:49 amDCA-BOI

29h 49m1 stop

$141Frontier

Find Deal

Thu, Jan 15 - Sun, Jan 18

12:28 pm - 9:59 pmGEG-DCA

6h 31m1 stop

8:59 am - 10:26 pmDCA-GEG

16h 27m1 stop

$234Multiple Airlines

Find Deal

Thu, Dec 4 - Thu, Dec 11

12:44 pm - 9:59 pmBOI-DCA

7h 15m1 stop

6:00 pm - 3:44 pmDCA-BOI

23h 44m2 stops

$244Multiple Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

8:47 pm - 4:36 pmGEG-IAD

16h 49m1 stop

7:34 am - 12:39 pmIAD-GEG

8h 05m1 stop

$266Alaska Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

8:47 pm - 9:59 pmGEG-DCA

22h 12m1 stop

8:00 am - 12:24 amDCA-GEG

19h 24m1 stop

$266Alaska Airlines

Find Deal

Wed, Dec 3 - Sun, Dec 7

11:19 am - 11:27 pmGEG-IAD

9h 08m1 stop

7:15 am - 12:29 pmIAD-GEG

8h 14m1 stop

$267Delta

Find Deal

Wed, Dec 3 - Sun, Dec 7

5:05 am - 3:27 pmGEG-DCA

7h 22m1 stop

4:55 pm - 12:11 amDCA-GEG

10h 16m1 stop

$267Delta

Find Deal

Wed, Dec 3 - Wed, Dec 10

8:26 pm - 4:36 pmBOI-IAD

18h 10m1 stop

7:34 am - 3:26 pmIAD-BOI

9h 52m1 stop

$282Hawaiian Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

5:59 pm - 5:40 amBOI-BWI

9h 41m1 stop

7:00 am - 3:26 pmBWI-BOI

10h 26m1 stop

$301Hawaiian Airlines

Find Deal

Useful Info

Low season	July
High season	June
Cheapest flight	$95

Most popular time to fly and prices are also 3% lower on average.

Flight from Spokane 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

Glen Burnie

Ellicott City

Greenbelt

Colonial Beach

Edgewood

Pikesville

Hunt Valley

Lutherville Timonium

Stevensville

Hyattsville

Camp Springs

Capitol Heights

Westminster

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.

Prem Econ Class flights to Washington, D.C.

Economy Class flights to Washington, D.C.

$95 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