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) - 63% of one-stop connections • Salt Lake City (SLC) - 23% of one-stop connections • Seattle/Tacoma Intl (SEA) - 13% 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.

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 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 26m, compared with 8h 37m 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 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.

What is the cheapest airline to fly from Great Falls to Washington, D.C. Dulles Intl Airport?

United Airlines ($368) and Delta ($374) are the cheapest airlines to fly round-trip from Great Falls to Washington, D.C. Dulles Intl Airport according to KAYAK data over the last 5 days.

What is the most popular layover airport when flying from Great Falls to Washington, D.C. Dulles Intl Airport?

Denver Intl (DEN) is the most popular layover for the Great Falls to Washington, D.C. Dulles Intl Airport route. 63% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DEN.

What is the cheapest layover airport when flying from Great Falls to Washington, D.C. Dulles Intl Airport?

Flights via Salt Lake City (SLC) offer the most affordable fares, with an average round-trip price of $465. Based on KAYAK data over the past 3 months.

When flying from Great Falls to Washington, D.C. Dulles Intl Airport which airport offers the shortest layover?

Denver Intl (DEN) had the shortest average connection time for Great Falls to Washington, D.C. Dulles Intl Airport layovers at 265 minutes over the past 3 months.

$162 CHEAP FLIGHTS from Great Falls to Washington Dulles (GTF - IAD)

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.

Cheapest round-trip

$368

Typical prices: $439-$718

United Airlines

Thu 11/1Thu 11/8

GTF - IAD • 1 stop

Cheapest one-way

$162

Typical prices: $219-$373

Multiple Airlines

Fri 12/14

GTF - IAD • 2 stops

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

When to travel

January

Cheapest • 30% price drop

November

Most popular

Good to know

Top layover airports

Salt Lake City (SLC)

Cheapest • Avg $465 (round-trip)

Denver Intl (DEN)

Shortest trip • 7h 26m (one-way)

Insights

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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

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

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

Round-trip

One-way

Last minute

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

Sun, Nov 1 - Wed, Nov 11

2:45 pm - 11:15 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

6h 30m1 stop Denver Intl

2:05 pm - 9:38 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

9h 33m1 stop Denver Intl

$368United Airlines

Fri, Oct 30 - Wed, Nov 4

1:18 pm - 11:35 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 17m1 stop Salt Lake City

12:30 pm - 10:40 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 10m2 stops New York John F Kennedy Intl Salt Lake City

$374Delta

Tue, Oct 20 - Sat, Oct 24

6:27 pm - 9:19 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 52m2 stops Salt Lake City Atlanta Hartsfield-Jackson

6:05 am - 12:38 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

8h 33m2 stops Detroit Metropolitan Wayne County Salt Lake City

$379Delta

Sat, Jan 23 - Tue, Jan 26

4:08 pm - 4:27 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

22h 19m1 stop Seattle/Tacoma Intl

5:30 pm - 3:28 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

23h 58m1 stop Seattle/Tacoma Intl

$432Alaska Airlines

Wed, Sep 30 - Sun, Oct 4

2:37 pm - 11:25 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

6h 48m1 stop Denver Intl

6:35 am - 1:41 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

9h 06m1 stop Denver Intl

$438United Airlines

Fri, Oct 2 - Tue, Oct 6

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

6:13 am - 12:38 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

8h 25m1 stop Salt Lake City

$444Delta

Tue, Oct 20 - Sat, Oct 24

6:27 pm - 9:19 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 52m2 stops Salt Lake City Atlanta Hartsfield-Jackson

6:13 am - 12:38 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

8h 25m1 stop Salt Lake City

$454Delta

Sat, Jan 23 - Tue, Jan 26

2:25 pm - 11:13 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

6h 48m1 stop Denver Intl

4:08 pm - 9:20 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

7h 12m1 stop Denver Intl

$468United Airlines

Sat, Jan 23 - Tue, Jan 26

4:08 pm - 4:27 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

22h 19m1 stop Seattle/Tacoma Intl

5:30 pm - 3:28 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

23h 58m1 stop Seattle/Tacoma Intl

$472Alaska Airlines

Thu, Oct 1 - Tue, Oct 6

1:15 pm - 11:43 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 28m1 stop Salt Lake City

6:13 am - 12:38 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

8h 25m1 stop Salt Lake City

$483Delta

Recent last minute flight deals from Great Falls to Dulles Intl

Tue, Sep 22 - Tue, Sep 29

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

12:25 pm - 10:37 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 12m2 stops New York John F Kennedy Intl Salt Lake City

$494Delta

Tue, Sep 22 - Tue, Sep 29

1:15 pm - 11:43 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 28m1 stop Salt Lake City

12:25 pm - 10:37 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 12m2 stops New York John F Kennedy Intl Salt Lake City

$520Delta

Wed, Sep 23 - Wed, Sep 30

5:19 pm - 5:40 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

10h 21m1 stop Seattle/Tacoma Intl

9:03 am - 4:39 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

9h 36m1 stop Seattle/Tacoma Intl

$528Alaska Airlines

Mon, Sep 21 - Tue, Sep 29

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

12:25 pm - 10:37 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 12m2 stops New York John F Kennedy Intl Salt Lake City

$529Delta

Tue, Sep 22 - Sat, Sep 26

6:21 pm - 9:09 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 48m2 stops Salt Lake City Atlanta Hartsfield-Jackson

7:00 am - 12:35 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

7h 35m1 stop Salt Lake City

$534Delta

Tue, Sep 22 - Sat, Sep 26

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

12:25 pm - 10:37 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 12m2 stops New York John F Kennedy Intl Salt Lake City

$539Delta

Tue, Sep 22 - Sat, Sep 26

1:15 pm - 11:43 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 28m1 stop Salt Lake City

7:00 am - 12:35 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

7h 35m1 stop Salt Lake City

$559Delta

Tue, Sep 22 - Mon, Sep 28

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

7:00 am - 12:35 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

7h 35m1 stop Salt Lake City

$565Delta

Mon, Sep 21 - Sat, Sep 26

6:21 pm - 9:09 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 48m2 stops Salt Lake City Atlanta Hartsfield-Jackson

7:00 am - 12:35 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

7h 35m1 stop Salt Lake City

$569Delta

Mon, Sep 21 - Sat, Sep 26

6:21 pm - 9:09 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 48m2 stops Salt Lake City Atlanta Hartsfield-Jackson

12:25 pm - 10:37 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 12m2 stops New York John F Kennedy Intl Salt Lake City

$574Delta

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.

Prices

Airlines

Layovers

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 $368. 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 $368 on United Airlines.

Find deals

Low season	March
High season	November
Cheapest flight	$162

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

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

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) - 63% of one-stop connections
• Salt Lake City (SLC) - 23% of one-stop connections
• Seattle/Tacoma Intl (SEA) - 13% 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.
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 $368 to $2,178. That means the highest observed fare was about 6x 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 $340, which is 20% 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 26m, compared with 8h 37m 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 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.

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).

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GTF - IAD

$162 Find Cheap Flights from Great Falls to Washington Dulles Airport - Compare and Save

Everything you should know

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

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

Recent one-way flight deals from Great Falls to Dulles Intl

Recent last minute flight deals from Great Falls to Dulles Intl

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

How much is a round-trip flight from Great Falls to Washington, D.C. Dulles Intl Airport?

What is the cheapest airline to fly from Great Falls to Washington, D.C. Dulles Intl Airport?

What is the most popular layover airport when flying from Great Falls to Washington, D.C. Dulles Intl Airport?

What is the cheapest layover airport when flying from Great Falls to Washington, D.C. Dulles Intl Airport?

When flying from Great Falls to Washington, D.C. Dulles Intl Airport which airport offers the shortest layover?

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

Low season

High season

Cheapest flight

When to book flights from Great Falls to Dulles Intl

Your Great Falls to Washington, D.C. Dulles Intl Airport flight questions, answered

Your guide to booking Great Falls to Washington, D.C. Dulles Intl Airport flights

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

Information on your arrival and departure airports

Cabin class types available on flights to Dulles Intl

Find direct flights to and from Great Falls and Dulles Intl

Flights from domestic origins to Dulles Intl

Choose which airport to fly into in Great Falls

Flights to other popular destinations

Find deals for your return flight