BOI - WAS

$129 Find Cheap Flights from Boise to Washington, D.C. - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$321
Typical prices: $335-$576
Alaska Airlines
Sun 12/2Tue 12/4
BOI - IAD • 1 stop
Cheapest one-way
$129
Typical prices: $167-$402
Frontier
Sat 11/24
BOI - IAD • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Boise and Washington, D.C.. You'll need to take a connecting flight to reach the destination.
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Insights
Top routes
BOI - DCA
Cheapest • 1% average savings
BOI - IAD
Most popular
Insights
Insights
When to book
26 weeks
in advance
Our data shows that travelers who book at least 26 weeks in advance save around 56% compared to booking last minute.
Insights
Insights
When to travel
August
Cheapest • 19% price drop
October
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $367 (round-trip)
Minneapolis St Paul (MSP)
Shortest trip • 7h 01m (one-way)
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Insights
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We hope you love your trip to Washington, D.C.!
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Booking Insights
Flight Deals

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

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

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

Wed, Dec 2 - Fri, Dec 4
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
Alaska Airlines Logo
6:42 pm - 10:27 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
29h 45m1 stop San Diego
$321Alaska Airlines
Mon, Dec 7 - Thu, Dec 10
Delta Logo
12:20 pm - 12:31 amBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
10h 11m1 stop Seattle/Tacoma Intl
Delta Logo
8:07 am - 1:44 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
7h 37m1 stop Atlanta Hartsfield-Jackson
$321Delta
Wed, Dec 2 - Fri, Dec 4
American Airlines Logo
2:49 pm - 11:59 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
7h 10m1 stop Dallas/Fort Worth
American Airlines Logo
5:00 am - 11:24 amDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
8h 24m1 stop Dallas/Fort Worth
$321American Airlines
Fri, Dec 25 - Thu, Dec 31
American Airlines Logo
6:30 am - 6:47 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
10h 17m1 stop Dallas/Fort Worth
American Airlines Logo
6:13 pm - 12:35 amDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
8h 22m1 stop Chicago O'Hare Intl
$321American Airlines
Wed, Dec 2 - Fri, Dec 4
Alaska Airlines Logo
11:42 am - 9:59 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
8h 17m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
10:59 am - 10:27 pmDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
13h 28m1 stop San Diego
$321Alaska Airlines
Wed, Dec 2 - Fri, Dec 4
Delta Logo
12:20 pm - 12:31 amBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
10h 11m1 stop Seattle/Tacoma Intl
Delta Logo
7:06 pm - 12:10 amIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
7h 04m1 stop Minneapolis St Paul
$321Delta
Fri, Nov 27 - Fri, Dec 4
Southwest Logo
5:35 am - 4:25 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
8h 50m1 stop Las Vegas Harry Reid Intl
Southwest Logo
4:00 pm - 10:35 pmDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
8h 35m2 stops Omaha Eppley Airfield Denver Intl
$326Southwest
Fri, Dec 4 - Tue, Dec 15
Southwest Logo
5:45 am - 4:20 pmBOI  Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National
8h 35m2 stops Phoenix Sky Harbor Intl Lambert-St Louis
Southwest Logo
4:00 pm - 10:35 pmDCA  Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld
8h 35m2 stops Omaha Eppley Airfield Denver Intl
$331Southwest
Tue, Nov 17 - Mon, Nov 23
United Airlines Logo
10:34 am - 7:30 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
6h 56m1 stop Denver Intl
United Airlines Logo
4:15 pm - 11:33 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
9h 18m1 stop San Francisco
$362United Airlines
Fri, Nov 27 - Fri, Dec 4
United Airlines Logo
6:20 am - 4:08 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
7h 48m1 stop San Francisco
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
$395United Airlines
Booking Insights

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

Round-trip flights from Boise to Washington, D.C. typically range from $335 to $576. The lowest price found in the past 5 days was $321, on Alaska Airlines.

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

There's little price difference between Boise to Washington, D.C. routes. They average around $434 round-trip, based on KAYAK data over the past 12 months.

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

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Boise to Washington, D.C.. It’s 10% cheaper than the average day, while Sunday is the most expensive, with prices 69% higher.

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

•August is the cheapest month to fly from Boise to Washington, D.C. at $349 round-trip.
•December ($548) and June ($534) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 57% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Boise to Washington, D.C. are cheapest 26 weeks before departure. Booking in this window typically costs about 56% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

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

Low season

December

Cheapest flight

$129
Beat the crowds with an average 27% drop in travelers.
The most popular month to fly with an average 27% increase in travelers.
One-way flight from Boise to Washington, D.C. Dulles Intl Airport

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

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

Your Boise to Washington, D.C. 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 Boise to Washington, D.C.?

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

    • Economy Class
    • First Class

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

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

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

    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 Boise to Washington, D.C. flight?

    Round-trip flights from Boise to Washington, D.C. range from $335 to $576, with an average of $432 over the past 12 months. Anything below $335 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 38% above the $432 route average. Book 26 weeks before departure for the lowest fares.

  • Have flight prices from Boise to Washington, D.C. 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 $2,033. That means the highest observed fare was about 6x higher than the lowest one.

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

    One-way fares from Boise to Washington, D.C. are currently lower than usual. Average one-way flight prices are about $156, which is 38% below the typical average for this route.

  • What car rental options are available in Washington, D.C.?

    Since Washington, D.C. is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Washington, D.C. Reagan-National Airport (DCA) — daily rates averaging $71:

    • Sixt
    • Dollar
    • Thrifty
    • Hertz
    • Alamo

    Near Washington, D.C. Dulles Intl Airport (IAD) — daily rates averaging $70:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

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

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

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

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

    • Seattle/Tacoma Intl (SEA) - 24% of one-stop connections
    • Denver Intl (DEN) - 22% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 17% of one-stop connections
    • Dallas/Fort Worth (DFW) - 15% of one-stop connections

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

    Yes. Flexible dates can save you up to 47% on flights from Boise to Washington, D.C.. Friday is the cheapest departure day at $393 round-trip on average, while Sunday is the most expensive at $732, a difference of $339.

    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 Boise to Washington, D.C.?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 6h 54m, compared with 7h 01m via Minneapolis St Paul (MSP) and 7h 25m via Chicago O'Hare Intl (ORD).

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

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

  • What popular places can I visit in Washington, D.C.?

    Some of the most popular sights in Washington, D.C. are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. on KAYAK.

Your guide to booking Boise to Washington, D.C. 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 Friday departure and avoid flying on Sunday. On this route, Friday flights average $393, about $339 less than Sunday fares (46% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 56% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boise to Washington, D.C. trip for August. Fares historically average $349 round-trip in that month - typically $199 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Washington, D.C. Reagan-National Airport.

    • Hyatt House Washington DC The Wharf
    • Intercontinental Hotels Washington D.C. - The Wharf By IHG
    • Cambria Hotel Washington D.C. Navy Yard Riverfront

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

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

Car rentals in Washington, D.C.
Hotels in Washington, D.C.
Vacations in Washington, D.C.