BOI - IAD

$137 Find Cheap Flights from Boise to Washington Dulles Airport - 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: $336-$550
Delta
Mon 11/26Wed 12/5
BOI - IAD • 1 stop
Cheapest one-way
$137
Typical prices: $222-$401
Frontier
Fri 12/21
BOI - IAD • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Boise and Washington, D.C. Dulles Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
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When to travel
August
Cheapest • 22% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $302 (round-trip)
Denver Intl (DEN)
Shortest trip • 6h 58m (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!

Cheap Flights from Boise to Dulles Intl (BOI-IAD)

 

Cheap flights from Boise to Dulles Intl with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Thu, Nov 26 - Sat, Dec 5
Delta Logo
8:55 am - 7:54 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
8h 59m1 stop Seattle/Tacoma Intl
Delta Logo
7:00 am - 12:11 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
7h 11m1 stop Salt Lake City
$321Delta
Thu, Nov 12 - Sat, Nov 14
Delta Logo
12:13 pm - 12:20 amBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
10h 07m1 stop Seattle/Tacoma Intl
Delta Logo
7:00 am - 12:24 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
7h 24m1 stop Salt Lake City
$321Delta
Thu, Nov 26 - Sat, Dec 5
United Airlines Logo
8:15 am - 7:01 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
8h 46m1 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
$321United Airlines
Wed, Nov 11 - Wed, Nov 18
United Airlines Logo
2:51 pm - 11:15 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
6h 24m1 stop Denver Intl
United Airlines Logo
5:20 pm - 10:59 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
7h 39m1 stop Denver Intl
$321United Airlines
Mon, Nov 16 - Wed, Nov 18
American Airlines Logo
12:15 pm - 11:30 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
9h 15m1 stop Dallas/Fort Worth
American Airlines Logo
7:14 am - 1:51 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
8h 37m1 stop Dallas/Fort Worth
$321American Airlines
Tue, Jan 19 - Thu, Jan 21
Delta Logo
3:22 pm - 11:33 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
6h 11m1 stop Minneapolis St Paul
Delta Logo
7:05 am - 4:00 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
10h 55m1 stop Seattle/Tacoma Intl
$321Delta
Thu, Nov 12 - Sat, Nov 14
American Airlines Logo
12:15 pm - 11:30 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
9h 15m1 stop Dallas/Fort Worth
American Airlines Logo
7:18 am - 1:51 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
8h 33m1 stop Dallas/Fort Worth
$332American Airlines
Sun, Nov 1 - Tue, Nov 3
United Airlines Logo
7:10 pm - 5:24 amBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
8h 14m1 stop San Francisco
United Airlines Logo
8:20 am - 1:45 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
7h 25m1 stop Denver Intl
$346United Airlines
Wed, Oct 28 - Sat, Oct 31
Alaska Airlines Logo
12:58 pm - 11:59 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
9h 01m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:02 am - 3:23 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
10h 21m1 stop Seattle/Tacoma Intl
$353Alaska Airlines
Wed, Oct 28 - Sat, Oct 31
Alaska Airlines Logo
2:06 pm - 11:59 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
7h 53m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:02 am - 2:11 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
9h 09m1 stop Seattle/Tacoma Intl
$383Alaska Airlines

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

Round-trip flights from Boise to Washington, D.C. Dulles Intl Airport typically range from $336 to $550. The lowest price found in the past 5 days was $321, on Delta.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Boise to Washington, D.C. Dulles Intl Airport. It’s 23% cheaper than the average day, while Sunday is the most expensive, with prices 10% higher.

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

•August is the cheapest month to fly from Boise to Washington, D.C. Dulles Intl Airport at $349 round-trip.
•November ($704) and December ($532) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 101% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Boise to Washington, D.C. Dulles Intl Airport flights

Low season

July

Cheapest flight

$137
Beat the crowds with an average 21% drop in travelers.
The most popular month to fly with an average 24% increase in travelers.
One-way flight from Boise to Washington, D.C. Dulles Intl Airport

When to book flights from Boise to Dulles Intl

Are your dates flexible? Find out the best times to travel from Boise to Dulles Intl 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. Dulles Intl Airport 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. Dulles Intl Airport?

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

    • Economy Class
    • First Class

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

    A nonstop flight from Boise to Washington, D.C. Dulles Intl Airport takes 00m, covering 2,019 miles.

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

    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. Dulles Intl Airport flight?

    Round-trip flights from Boise to Washington, D.C. Dulles Intl Airport range from $336 to $550, with an average of $450 over the past 12 months. Anything below $336 counts as a good deal.

  • Have flight prices from Boise to Washington, D.C. Dulles Intl Airport 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 $2,121. That means the highest observed fare was about 7x higher than the lowest one.

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

    One-way fares from Boise to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about $161, which is 49% below the typical average for this route.

  • What car rental options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

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

    Flights from Boise to Washington, D.C. Dulles Intl Airport usually depart from Boise Air Term. Gowen Fld (BOI) and arrive at Washington, D.C. Dulles Intl (IAD).

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

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

    • Denver Intl (DEN) - 36% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 29% of one-stop connections
    • Dallas/Fort Worth (DFW) - 13% of one-stop connections
    • Minneapolis St Paul (MSP) - 7% of one-stop connections

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

    Yes. Flexible dates can save you up to 30% on flights from Boise to Washington, D.C. Dulles Intl Airport. Tuesday is the cheapest departure day at $350 round-trip on average, while Sunday is the most expensive at $499, a difference of $149.

    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. Dulles Intl Airport?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 58m, compared with 7h 08m via Salt Lake City (SLC) and 7h 18m via Chicago O'Hare Intl (ORD).

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

    Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport?

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

Your guide to booking Boise to Washington, D.C. Dulles Intl Airport 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 $350, about $149 less than Sunday fares (30% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Boise to Washington, D.C. Dulles Intl Airport trip for August. Fares historically average $349 round-trip in that month - typically $355 less than the most expensive month, which is November (based on the last 12 months).

More options for your flight from Boise to Dulles Intl

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.
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