WAS - BOI

$140 Find Cheap Flights from Washington, D.C. to Boise - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$321
Typical prices: $334-$597
Delta
Fri 12/7Sat 12/15
IAD - BOI • 1 stop
Cheapest one-way
$140
Typical prices: $165-$361
Frontier
Sat 12/22
IAD - BOI • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Boise. You'll need to take a connecting flight to reach the destination.
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Top routes
IAD - BOI
Cheapest • 1% average savings
DCA - BOI
Most popular
Insights
Insights
When to book
18 weeks
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 18% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $205 (round-trip)
Minneapolis St Paul (MSP)
Shortest trip • 7h 09m (one-way)
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Insights
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Flight Deals

Cheap Flights from Washington, D.C. to Boise (WAS-BOI)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Mon, Dec 7 - Tue, Dec 15
American Airlines Logo
7:47 am - 12:59 pmDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
7h 12m1 stop Chicago O'Hare Intl
American Airlines Logo
2:42 pm - 11:59 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
7h 17m1 stop Dallas/Fort Worth
$321American Airlines
Mon, Dec 7 - Tue, Dec 15
Delta Logo
7:26 am - 12:42 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
7h 16m1 stop Minneapolis St Paul
Delta Logo
1:07 pm - 11:47 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
8h 40m1 stop Salt Lake City
$321Delta
Wed, Dec 9 - Thu, Dec 17
United Airlines Logo
8:15 am - 2:50 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
8h 35m1 stop San Francisco
United Airlines Logo
7:31 am - 6:11 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
8h 40m1 stop Denver Intl
$323United Airlines
Wed, Dec 9 - Wed, Dec 16
Alaska Airlines Logo
6:42 pm - 1:25 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
20h 43m1 stop San Diego
Alaska Airlines Logo
7:22 am - 5:39 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
8h 17m1 stop San Diego
$323Alaska Airlines
Mon, Dec 14 - Wed, Dec 16
Delta Logo
6:59 pm - 12:10 amDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
7h 11m1 stop Minneapolis St Paul
Delta Logo
1:47 pm - 10:41 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
6h 54m1 stop Atlanta Hartsfield-Jackson
$323Delta
Wed, Dec 9 - Wed, Dec 16
American Airlines Logo
7:47 am - 12:59 pmDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
7h 12m1 stop Chicago O'Hare Intl
American Airlines Logo
2:42 pm - 11:59 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
7h 17m1 stop Dallas/Fort Worth
$323American Airlines
Tue, Dec 22 - Mon, Jan 4
Frontier Logo
8:51 pm - 4:48 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
21h 57m1 stop Las Vegas Harry Reid Intl
Frontier Logo
5:33 pm - 6:07 amBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
10h 34m1 stop Las Vegas Harry Reid Intl
$327Frontier
Wed, Dec 9 - Wed, Dec 16
Southwest Logo
2:40 pm - 10:35 pmDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
9h 55m2 stops Lambert-St Louis Denver Intl
Southwest Logo
6:20 am - 4:45 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
8h 25m1 stop Las Vegas Harry Reid Intl
$328Southwest
Sat, Dec 5 - Sat, Dec 12
Southwest Logo
12:15 pm - 9:35 pmDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
11h 20m2 stops Lambert-St Louis Denver Intl
Southwest Logo
11:30 am - 9:00 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
7h 30m1 stop Las Vegas Harry Reid Intl
$328Southwest
Sat, Feb 27 - Thu, Mar 4
United Airlines Logo
7:50 am - 3:07 pmDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
9h 17m1 stop San Francisco
United Airlines Logo
8:30 am - 5:04 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
6h 34m1 stop Chicago O'Hare Intl
$343United Airlines
Booking Insights

Price, demand and travel trends for Washington, D.C. to Boise flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Washington, D.C. to Boise?

Round-trip flights from Washington, D.C. to Boise typically range from $334 to $597. The lowest price found in the past 5 days was $321, on Delta.

What is the cheapest Washington, D.C. to Boise flight route?

There's little price difference between Washington, D.C. to Boise routes. They average around $420 round-trip, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Boise?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Washington, D.C. to Boise. It’s 14% cheaper than the average day, while Sunday is the most expensive, with prices 45% higher.

What’s the cheapest month to fly from Washington, D.C. to Boise?

•January is the cheapest month to fly from Washington, D.C. to Boise at $344 round-trip.
•March ($591) and July ($550) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 71% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Washington, D.C. to Boise the cheapest?

Flights from Washington, D.C. to Boise are cheapest 18 weeks before departure. Booking in this window typically costs about 55% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Washington, D.C. to Boise flights

Low season

February

Cheapest flight

$140
Beat the crowds with an average 57% drop in travelers.
The most popular month to fly with an average 83% increase in travelers.
One-way flight from Washington, D.C. Dulles Intl Airport to Boise

When to book flights from Washington, D.C. to Boise

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Boise based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Washington, D.C. to Boise flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Washington, D.C. to Boise?

    Two cabin classes are available on flights from Washington, D.C. to Boise:

    • Economy Class
    • First Class

  • How long is a flight from Washington, D.C. to Boise?

    A nonstop flight from Washington, D.C. to Boise takes 00m, covering 2,041 miles.

  • Do I need a passport to fly from Washington, D.C. to Boise?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Washington, D.C. to Boise flight?

    Round-trip flights from Washington, D.C. to Boise range from $334 to $597, with an average of $422 over the past 12 months. Anything below $334 counts as a good deal.

  • How expensive are last-minute Washington, D.C. to Boise flights?

    Last-minute fares on this route (booked within two weeks of departure) run 40% above the $422 route average. Book 18 weeks before departure for the lowest fares.

  • Have flight prices from Washington, D.C. to Boise changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $321 to $2,116. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from Washington, D.C. to Boise looking right now?

    One-way fares from Washington, D.C. to Boise are currently lower than usual. Average one-way flight prices are about $176, which is 27% below the typical average for this route.

  • What car rental options are available at Boise Air Term. Gowen Fld Airport (BOI)?

    Boise Air Term. Gowen Fld Airport (BOI) hosts 5 major car rental companies, with daily rates averaging $84 for economy cars. Top options include:

    • Budget
    • Alamo
    • Hertz
    • Enterprise Rent-A-Car
    • Avis

  • Which airports can I use when flying from Washington, D.C. to Boise?

    Flights from Washington, D.C. to Boise may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Boise Air Term. Gowen Fld (BOI).

  • Which airports do connecting flights from Washington, D.C. to Boise pass through?

    One-stop flights from Washington, D.C. to Boise most commonly connect through:

    • Chicago O'Hare Intl (ORD) - 35% of one-stop connections
    • Denver Intl (DEN) - 28% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 12% of one-stop connections
    • Minneapolis St Paul (MSP) - 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. to Boise?

    Yes. Flexible dates can save you up to 41% on flights from Washington, D.C. to Boise. Tuesday is the cheapest departure day at $366 round-trip on average, while Sunday is the most expensive at $614, a difference of $248.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Washington, D.C. to Boise?

    Flying via Minneapolis St Paul (MSP) gives the shortest average 1-stop total travel time at 7h 09m, compared with 7h 19m via Chicago O'Hare Intl (ORD) and 7h 25m via Denver Intl (DEN).

  • What is the time difference between Washington, D.C. and Boise?

    Boise is 2 hours behind Washington, D.C. (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Boise?

    Some of the most popular sights in Boise are Idaho Central Arena, Julia Davis Park and Discovery Center of Idaho. These are among the most viewed places in Boise on KAYAK.

Your guide to booking Washington, D.C. to Boise flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average $366, about $248 less than Sunday fares (40% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 55% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. to Boise trip for January. Fares historically average $344 round-trip in that month - typically $247 less than the most expensive month, which is March (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Boise Air Term. Gowen Fld Airport.

    • Ramada by Wyndham Boise
    • Super 8 by Wyndham Boise
    • Comfort Suites Airport

More options for your flight from Washington, D.C. to Boise

Complete your trip to Boise with a hotel stay or car rental

Car rentals in Boise
Hotels in Boise
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