GTF - IAD

$194 Find Cheap Flights from Great Falls 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
$378
Typical prices: $476-$784
Delta
Sun 12/16Sat 1/6
GTF - IAD • 1 stop
Cheapest one-way
$194
Typical prices: $230-$535
Alaska Airlines
Tue 11/13
GTF - IAD • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Great Falls and Washington, D.C. Dulles Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 30% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $467 (round-trip)
Denver Intl (DEN)
Shortest trip • 7h 34m (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
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Booking Insights
Flight Deals

Cheap Flights from Great Falls to Dulles Intl (GTF-IAD)

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

Recent round-trip flight deals from Great Falls to Dulles Intl

Wed, Dec 16 - Wed, Jan 6
Delta Logo
1:19 pm - 11:47 pmGTF  Great Falls-IAD Washington, D.C. Dulles Intl
8h 28m1 stop Salt Lake City
Delta Logo
7:15 am - 12:27 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
7h 12m1 stop Salt Lake City
$378Delta
Tue, Dec 15 - Wed, Jan 6
Delta Logo
6:19 pm - 11:49 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
15h 30m2 stops Salt Lake City New York John F Kennedy Intl
Delta Logo
7:15 am - 12:27 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
7h 12m1 stop Salt Lake City
$384Delta
Tue, Dec 15 - Thu, Jan 7
Delta Logo
6:19 pm - 11:49 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
15h 30m2 stops Salt Lake City New York John F Kennedy Intl
Delta Logo
7:30 am - 5:43 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
12h 13m2 stops Minneapolis St Paul Salt Lake City
$413Delta
Tue, Dec 15 - Wed, Jan 6
Delta Logo
6:19 pm - 11:49 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
15h 30m2 stops Salt Lake City New York John F Kennedy Intl
Delta Logo
6:40 am - 5:43 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
13h 03m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$424Delta
Wed, Dec 16 - Tue, Jan 5
Delta Logo
1:19 pm - 11:47 pmGTF  Great Falls-IAD Washington, D.C. Dulles Intl
8h 28m1 stop Salt Lake City
Delta Logo
5:00 pm - 12:27 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
21h 27m2 stops Detroit Metropolitan Wayne County Salt Lake City
$445Delta
Fri, Oct 30 - Tue, Nov 3
United Airlines Logo
2:45 pm - 11:15 pmGTF  Great Falls-IAD Washington, D.C. Dulles Intl
6h 30m1 stop Denver Intl
United Airlines Logo
2:05 pm - 9:38 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
9h 33m1 stop Denver Intl
$448United Airlines
Tue, Dec 15 - Tue, Jan 5
Delta Logo
6:19 pm - 11:49 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
15h 30m2 stops Salt Lake City New York John F Kennedy Intl
Delta Logo
5:00 pm - 12:27 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
21h 27m2 stops Detroit Metropolitan Wayne County Salt Lake City
$450Delta
Fri, Oct 30 - Tue, Nov 3
Delta Logo
6:27 pm - 10:10 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
13h 43m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
6:13 am - 12:38 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
8h 25m1 stop Salt Lake City
$454Delta
Sat, Oct 31 - Wed, Nov 4
United Airlines Logo
2:45 pm - 11:15 pmGTF  Great Falls-IAD Washington, D.C. Dulles Intl
6h 30m1 stop Denver Intl
United Airlines Logo
2:05 pm - 9:38 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
9h 33m1 stop Denver Intl
$458United Airlines
Fri, Oct 30 - Tue, Nov 3
Delta Logo
6:27 pm - 10:10 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
13h 43m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
6:05 am - 12:38 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
8h 33m2 stops Detroit Metropolitan Wayne County Salt Lake City
$459Delta
Booking Insights

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

Round-trip flights from Great Falls to Washington, D.C. Dulles Intl Airport typically range from $476 to $784. The lowest price found in the past 5 days was $378, on Delta.

Find deals

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

Cheapest flight

$194
The most popular month to fly with an average 33% increase in travelers.
One-way flight from Great Falls to Washington, D.C. Dulles Intl Airport

When to book flights from Great Falls to Dulles Intl

Are your dates flexible? Find out the best times to travel from Great Falls 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 Great Falls 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 Great Falls to Washington, D.C. Dulles Intl Airport?

    Only Economy Class is available on flights from Great Falls to Washington, D.C. Dulles Intl Airport.

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

    A nonstop flight from Great Falls to Washington, D.C. Dulles Intl Airport takes 00m, covering 1,789 miles.

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

    Round-trip flights from Great Falls to Washington, D.C. Dulles Intl Airport range from $476 to $784, with an average of $539 over the past 12 months. Anything below $476 counts as a good deal.

  • Have flight prices from Great Falls 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 $378 to $1,037. That means the highest observed fare was about 3x higher than the lowest one.

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

    One-way fares from Great Falls to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about $238, which is 16% 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 Great Falls to Washington, D.C. Dulles Intl Airport?

    Flights from Great Falls to Washington, D.C. Dulles Intl Airport usually depart from Great Falls (GTF) and arrive at Washington, D.C. Dulles Intl (IAD).

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

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

    • Denver Intl (DEN) - 59% of one-stop connections
    • Salt Lake City (SLC) - 26% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 15% of one-stop connections

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

    Yes. Flexible dates can save you up to 42% on flights from Great Falls to Washington, D.C. Dulles Intl Airport. Wednesday is the cheapest departure day at $515 round-trip on average, while Saturday is the most expensive at $886, a difference of $371.

    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 Great Falls to Washington, D.C. Dulles Intl Airport?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 7h 34m, compared with 8h 36m via Salt Lake City (SLC) and 14h 29m via Seattle/Tacoma Intl (SEA).

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

    Washington, D.C. Dulles Intl Airport is 2 hours ahead of Great Falls (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 Great Falls 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 Wednesday departure and avoid flying on Saturday. On this route, Wednesday flights average $515, about $371 less than Saturday fares (42% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Great Falls to Washington, D.C. Dulles Intl Airport trip for January. Fares historically average $378 round-trip in that month - typically $718 less than the most expensive month, which is June (based on the last 12 months).

More options for your flight from Great Falls 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.
Vacations in Washington, D.C.