BOI - IAD

$152 Find Cheap Flights from Boise to Washington Dulles Airport - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$244
Typical prices: $353-$553
Frontier
Mon 10/1Mon 10/22
BOI - IAD • 1 stop
Cheapest one-way
$152
Typical prices: $228-$486
American Airlines
Mon 10/29
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
Insights
When to travel
July
Cheapest • 20% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $397 (round-trip)
Denver Intl (DEN)
Shortest trip • 7h 00m (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
Flight Deals

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

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

Recent round-trip flight deals from Boise to Dulles Intl

Thu, Oct 1 - Thu, Oct 22
Frontier Logo
2:50 pm - 6:20 amBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
13h 30m1 stop Las Vegas Harry Reid Intl
Frontier Logo
6:00 am - 1:55 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
9h 55m1 stop Las Vegas Harry Reid Intl
$244Frontier
Thu, Oct 1 - Tue, Oct 6
Multiple Airlines Logo
2:50 pm - 6:20 amBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
13h 30m1 stop Las Vegas Harry Reid Intl
Multiple 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
$279Multiple Airlines
Thu, Oct 1 - Wed, Oct 21
Frontier Logo
2:50 pm - 6:20 amBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
13h 30m1 stop Las Vegas Harry Reid Intl
Frontier Logo
7:50 am - 1:55 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
32h 05m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl
$295Frontier
Tue, Oct 20 - Thu, Oct 29
United Airlines Logo
2:20 pm - 1:06 amBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
8h 46m1 stop San Francisco
United Airlines Logo
6:11 am - 11:31 amIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
7h 20m1 stop Chicago O'Hare Intl
$303United Airlines
Sat, Oct 24 - Thu, Oct 29
United Airlines Logo
2:44 pm - 11:25 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
6h 41m1 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
$303United Airlines
Sat, Oct 3 - Wed, Oct 21
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 - 3:23 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
10h 21m1 stop Seattle/Tacoma Intl
$303Alaska Airlines
Tue, Oct 6 - Wed, Oct 21
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 - 3:23 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
10h 21m1 stop Seattle/Tacoma Intl
$303Alaska Airlines
Wed, Feb 24 - Mon, Mar 1
Delta Logo
12:42 pm - 11:51 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
9h 09m1 stop Seattle/Tacoma Intl
Delta Logo
7:05 am - 2:22 pmIAD  Washington, D.C. Dulles Intl-BOI Boise Air Term. Gowen Fld
9h 17m1 stop Seattle/Tacoma Intl
$303Delta
Sat, Feb 13 - Wed, Feb 17
Delta Logo
12:42 pm - 11:51 pmBOI  Boise Air Term. Gowen Fld-IAD Washington, D.C. Dulles Intl
9h 09m1 stop Seattle/Tacoma Intl
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
$303Delta
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
$303Alaska Airlines
Booking Insights

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 from Boise to Washington, D.C. Dulles Intl Airport 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 start at $244. Prices are below average for this route right now, with typical round-trip fares ranging from $353 to $553. The lowest price found in the past 5 days was $244 on Frontier.

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

Tuesday is the cheapest day of the week to fly from Boise to Washington, D.C. Dulles Intl Airport, it is 24% cheaper than the average day. Sunday is the most expensive day with flight prices 7% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • July and August are the cheapest months to fly from Boise to Washington, D.C. Dulles Intl Airport at $372 round-trip.
  • December ($532) and January ($493) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 43% 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

August

Cheapest flight

$152
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 2% lower on average.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

  • 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

  • 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) - 47% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 23% of one-stop connections
    • Dallas/Fort Worth (DFW) - 16% of one-stop connections
    • Minneapolis St Paul (MSP) - 5% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 30% on the Boise to Washington, D.C. Dulles Intl Airport route. Tuesday is the cheapest departure day at $354 round-trip on average, while Sunday is the most expensive at $499, a difference of $145. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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.

  • 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 0h 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.

  • 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 $244 to $1,808. 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 $155, which is 56% below the typical average for this route.

  • 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 7h 00m, compared with 7h 30m via Minneapolis St Paul (MSP) and 7h 41m 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 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
    • Budget
    • Hertz
    • Sixt
    • Thrifty

  • 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 $353 to $553, with an average of $464 over the past 12 months. Anything below $353 counts as a good deal.

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 can be flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average $354 - about $145 less than Sunday (29% 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 July. Fares historically average $372 round-trip in that month - typically $160 less than the most expensive month, which is December (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

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