GTF - IAD

$264 Find Cheap Flights from Great Falls to Washington Dulles Airport - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$348
Typical prices: $439-$718
United Airlines
Mon 11/5Fri 11/9
GTF - IAD • 1 stop
Cheapest one-way
$264
Typical prices: $219-$373
Alaska Airlines
Sun 9/23
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 36m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
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

Thu, Nov 5 - Mon, Nov 9
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
6:10 am - 1:49 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
9h 39m1 stop Denver Intl
$348United Airlines
Tue, Oct 20 - Sat, Oct 24
Delta Logo
6:27 pm - 9:19 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
12h 52m2 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
$354Delta
Tue, Oct 20 - Sat, Oct 24
Delta Logo
6:27 pm - 9:19 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
12h 52m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
7:23 am - 5:47 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
12h 24m2 stops Minneapolis St Paul Salt Lake City
$359Delta
Tue, Oct 20 - Sat, Oct 24
Delta Logo
6:27 pm - 9:19 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
12h 52m2 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
$414Delta
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
2:25 pm - 11:19 pmGTF  Great Falls-IAD Washington, D.C. Dulles Intl
6h 54m1 stop Denver Intl
United Airlines Logo
4:15 pm - 9:12 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
6h 57m1 stop Denver Intl
$418United Airlines
Tue, Oct 20 - Sat, Oct 24
Delta Logo
6:27 pm - 9:19 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
12h 52m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 5:47 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
13h 47m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$419Delta
Tue, Oct 20 - Sat, Oct 24
Delta Logo
1:18 pm - 11:35 pmGTF  Great Falls-IAD Washington, D.C. Dulles Intl
8h 17m1 stop Salt Lake City
Delta Logo
6:13 am - 12:38 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
8h 25m1 stop Salt Lake City
$428Delta
Tue, Oct 20 - Sat, Oct 24
Delta Logo
1:18 pm - 11:35 pmGTF  Great Falls-IAD Washington, D.C. Dulles Intl
8h 17m1 stop Salt Lake City
Delta Logo
6:13 am - 12:38 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
8h 25m1 stop Salt Lake City
$430Delta
Fri, Oct 2 - Wed, Oct 7
Delta Logo
6:21 pm - 11:45 amGTF  Great Falls-IAD Washington, D.C. Dulles Intl
15h 24m2 stops Salt Lake City New York John F Kennedy Intl
Delta Logo
6:13 am - 12:38 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
8h 25m1 stop Salt Lake City
$434Delta
Tue, Oct 20 - Sat, Oct 24
Delta Logo
1:18 pm - 11:35 pmGTF  Great Falls-IAD Washington, D.C. Dulles Intl
8h 17m1 stop Salt Lake City
Delta Logo
7:23 am - 5:47 pmIAD  Washington, D.C. Dulles Intl-GTF Great Falls
12h 24m2 stops Minneapolis St Paul Salt Lake City
$436Delta
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 from Great Falls to Washington, D.C. Dulles Intl Airport 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 start at $348. Prices are below average for this route right now, with typical round-trip fares ranging from $439 to $718. The lowest price found in the past 5 days was $348 on United Airlines.

Find deals

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

Low season

March

Cheapest flight

$264
Most popular time to fly with an average 38% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

  • 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.

  • 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) - 69% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 15% of one-stop connections
    • Salt Lake City (SLC) - 15% 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 Great Falls to Washington, D.C. Dulles Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 51% on the Great Falls to Washington, D.C. Dulles Intl Airport route. Friday is the cheapest departure day at $439 round-trip on average, while Saturday is the most expensive at $886, a difference of $447. 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 Great Falls to Washington, D.C. Dulles Intl Airport?

    A nonstop flight from Great Falls to Washington, D.C. Dulles Intl Airport takes 0h 00m, covering 1,789 miles.

  • What are the earliest and latest flights from Great Falls to Washington, D.C. Dulles Intl Airport?

    These are the earliest and latest flight times available from Great Falls to Washington, D.C. Dulles Intl Airport:

    • Earliest: departs at 12:00 am and lands at 12:00 am
    • Latest: departs at 12:00 am and lands at 12:00 am.

    The flight takes about 0h 00m.

  • 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.

  • 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 $348 to $3,137. That means the highest observed fare was about 9x 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 higher than usual. Average one-way flight prices are about $347, which is 23% above the typical average for this route.

  • 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 36m, compared with 10h 20m via Salt Lake City (SLC) and 11h 06m 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 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 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 $439 to $718, with an average of $538 over the past 12 months. Anything below $439 counts as a good deal.

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 can be flexible, aim for a Friday departure instead of Saturday. On this route, Friday flights average $439 - about $447 less than Saturday (50% 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).

Everything you need to know for your flight from Great Falls to Dulles Intl

Information on your arrival and departure airports

Great Falls (GTF)
Dulles Intl (IAD)