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.

$112 CHEAP FLIGHTS from Idaho to Washington, D.C.

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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.

Thu, Sep 10 - Mon, Sep 14

2:50 pm - 6:20 am

BOI

IAD

13h 30m

1 stop

6:00 am - 1:55 pm

IAD

BOI

9h 55m

1 stop

$242Frontier

Thu, Oct 1 - Mon, Oct 5

2:50 pm - 6:20 am

BOI

IAD

13h 30m

1 stop

6:00 am - 1:55 pm

IAD

BOI

9h 55m

1 stop

$272Frontier

Tue, Sep 29 - Sat, Oct 3

7:05 am - 7:20 pm

BOI

BWI

10h 15m

1 stop

12:55 pm - 8:50 pm

BWI

BOI

9h 55m

1 stop

$303Southwest

Sat, Sep 19 - Tue, Sep 22

6:00 am - 3:40 pm

BOI

BWI

7h 40m

1 stop

7:50 am - 3:30 pm

BWI

BOI

9h 40m

1 stop

$303Alaska Airlines

Thu, Aug 20 - Mon, Aug 24

3:19 pm - 11:59 pm

BOI

BWI

6h 40m

1 stop

7:03 am - 2:29 pm

BWI

BOI

9h 26m

1 stop

$303American Airlines

Wed, Sep 2 - Sat, Sep 5

12:12 pm - 9:34 pm

BOI

BWI

7h 22m

1 stop

7:33 am - 2:02 pm

BWI

BOI

8h 29m

1 stop

$303American Airlines

Mon, Nov 2 - Thu, Nov 5

6:50 pm - 5:45 am

BOI

BWI

8h 55m

1 stop

7:30 am - 12:35 pm

BWI

BOI

7h 05m

1 stop

$303Delta

Thu, Oct 1 - Wed, Oct 7

11:10 pm - 9:16 am

BOI

BWI

8h 06m

1 stop

7:30 am - 12:35 pm

BWI

BOI

7h 05m

1 stop

$303Delta

Sat, Jan 9 - Mon, Jan 11

5:15 am - 5:00 pm

BOI

BWI

9h 45m

2 stops

10:15 am - 4:05 pm

BWI

BOI

7h 50m

1 stop

$308Southwest

Thu, Sep 17 - Mon, Sep 21

12:17 pm - 11:59 pm

GEG

IAD

8h 42m

1 stop

5:57 pm - 11:59 pm

IAD

GEG

9h 02m

1 stop

$314Alaska Airlines

Useful Info

Low season	January
High season	April
Cheapest flight	$112

Best time to beat the crowds with an average 30% drop in price.

Most popular time to fly and prices are also 2% 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

Greenbelt

Glen Burnie

Edgewood

Chesapeake Beach

Camp Springs

Ellicott City

Pikesville

Colonial Beach

Hunt Valley

Lutherville Timonium

Capitol Heights

Westminster

Stevensville

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

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Cabin class types available on flights to Idaho

First Class flights to Washington, D.C.

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Economy Class flights to Washington, D.C.

$112 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.

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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

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