Which layover airport offers the lowest fares from Washington, D.C. to Great Falls?

Flights via Denver (DEN) offer the lowest average round-trip price of $377.

Which layover airport has the shortest connection time from Washington, D.C. to Great Falls?

Denver (DEN) has the shortest average layover time for this route: 1h 19m.

Which airport is the most popular layover for flights between Washington, D.C. and Great Falls?

Denver (DEN) was the most common stop: 83% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Washington, D.C. to Great Falls?

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 6h 49m.

How long does it take to fly to Great Falls?

Flight times from Washington, D.C. to Great Falls vary, but if you’re flying out of Baltimore and flying into Great Falls (one of the most popular routes), then the duration is 7h 17m on average. Another popular route from Washington, D.C. to Great Falls is flying from Washington, D.C. to Great Falls, which will take roughly 7h 19m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from Washington, D.C. to Great Falls Airport?

Prices for flights from Washington, D.C. to Great Falls Airport refresh daily.

How many operators does momondo search for flights from Washington, D.C. to Great Falls Airport?

The number of operators available for flights from Washington, D.C. to Great Falls Airport is 1 as of October 2026.

How old do you have to be to fly from Washington, D.C. to Great Falls Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Great Falls Airport.

What documentation or ID do you need to fly to Great Falls Airport?

The required travel and health documents for your Great Falls Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Great Falls Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$256 Cheap Flights from Washington, D.C. to Great Falls in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Great Falls

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:05 am - 12:42 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

7h 37m1 stop Salt Lake City

1:22 pm - 11:31 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 09m1 stop Salt Lake City

$388Delta

Thu, Jan 7 - Sat, Jan 9

7:00 am - 12:39 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

7h 39m1 stop Salt Lake City

6:19 pm - 9:16 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 57m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$394Delta

Fri, Dec 4 - Sat, Dec 12

6:00 am - 5:47 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

13h 47m2 stops Atlanta Hartsfield-Jackson Salt Lake City

1:22 pm - 11:31 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 09m1 stop Salt Lake City

$394Delta

Thu, Jan 7 - Sat, Jan 9

7:26 am - 5:39 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 13m2 stops Minneapolis St Paul Salt Lake City

6:19 pm - 9:16 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 57m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$399Delta

Fri, Dec 4 - Sat, Dec 12

3:00 pm - 10:29 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

9h 29m2 stops Atlanta Hartsfield-Jackson Salt Lake City

6:19 pm - 9:16 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 57m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$399Delta

Fri, Dec 4 - Sat, Dec 12

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

9h 33m1 stop Denver Intl

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

6h 30m1 stop Denver Intl

$423United Airlines

Tue, Nov 10 - Tue, Nov 17

12:31 pm - 10:30 pmDCA Washington, D.C. Reagan-National-GTF Great Falls

11h 59m2 stops Atlanta Hartsfield-Jackson Salt Lake City

5:30 am - 6:39 pmGTF Great Falls-DCA Washington, D.C. Reagan-National

11h 09m2 stops Salt Lake City Detroit Metropolitan Wayne County

$469Delta

Sat, Nov 14 - Wed, Nov 18

4:15 pm - 9:42 pmDCA Washington, D.C. Reagan-National-GTF Great Falls

7h 27m1 stop Denver Intl

6:25 am - 2:55 pmGTF Great Falls-DCA Washington, D.C. Reagan-National

6h 30m1 stop Denver Intl

$487United Airlines

Thu, Jan 7 - Sat, Jan 9

4:15 pm - 9:42 pmDCA Washington, D.C. Reagan-National-GTF Great Falls

7h 27m1 stop Denver Intl

6:25 am - 2:55 pmGTF Great Falls-DCA Washington, D.C. Reagan-National

6h 30m1 stop Denver Intl

$508United Airlines

Fri, Jan 8 - Tue, Jan 12

2:11 pm - 9:42 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

9h 31m1 stop Denver Intl

6:25 am - 5:10 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 45m1 stop Denver Intl

$508United Airlines

Fri, Jan 8 - Tue, Jan 12

Cheap last minute flights

Enter your travel dates to find the best prices.

8:20 am - 1:49 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

7h 29m1 stop Denver Intl

6:30 am - 5:19 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 49m1 stop Denver Intl

$468United Airlines

Thu, Nov 5 - Tue, Dec 8

12:20 pm - 10:30 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 10m2 stops Detroit Metropolitan Wayne County Salt Lake City

1:19 pm - 11:47 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 28m1 stop Salt Lake City

$474Delta

Thu, Nov 5 - Tue, Dec 8

7:23 am - 5:47 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 24m2 stops Minneapolis St Paul Salt Lake City

1:19 pm - 12:41 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

9h 22m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$479Delta

Thu, Nov 5 - Tue, Dec 8

6:10 am - 1:49 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

9h 39m1 stop Denver Intl

6:30 am - 3:44 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

7h 14m1 stop Denver Intl

$503United Airlines

Thu, Nov 5 - Tue, Nov 10

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

8h 25m1 stop Salt Lake City

1:21 pm - 11:47 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 26m1 stop Salt Lake City

$503Delta

Wed, Nov 4 - Mon, Nov 9

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

12h 00m2 stops New York John F Kennedy Intl Salt Lake City

1:21 pm - 11:47 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

8h 26m1 stop Salt Lake City

$509Delta

Thu, Nov 5 - Tue, Nov 10

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

8h 25m1 stop Salt Lake City

6:19 pm - 9:09 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 50m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$509Delta

Wed, Nov 4 - Mon, Nov 9

12:20 pm - 10:30 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 10m2 stops Detroit Metropolitan Wayne County Salt Lake City

5:30 am - 6:17 pmGTF Great Falls-IAD Washington, D.C. Dulles Intl

10h 47m2 stops Salt Lake City Minneapolis St Paul

$514Delta

Thu, Nov 5 - Tue, Nov 10

7:23 am - 5:47 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

12h 24m2 stops Minneapolis St Paul Salt Lake City

6:19 pm - 9:09 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

12h 50m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$514Delta

Wed, Nov 4 - Mon, Nov 9

5:17 pm - 4:30 pmIAD Washington, D.C. Dulles Intl-GTF Great Falls

25h 13m1 stop Seattle/Tacoma Intl

5:10 pm - 5:44 amGTF Great Falls-IAD Washington, D.C. Dulles Intl

10h 34m1 stop Seattle/Tacoma Intl

$538Alaska Airlines

Sun, Nov 1 - Sat, Nov 14

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Alaska Airlines flights from Washington, D.C. to Great Falls

Our best Alaska Airlines deals on Washington, D.C. to Great Falls flight tickets

Alaska Airlines

Nov 14

IAD7:46 amWashington, D.C. Dulles Intl

10h 44m

1 stop

GTF4:30 pmGreat Falls

Nov 18

GTF5:10 pmGreat Falls

10h 34m

1 stop

IAD5:44 amWashington, D.C. Dulles Intl

$458

Alaska Airlines

Dec 4

IAD5:18 pmWashington, D.C. Dulles Intl

24h 53m

1 stop

GTF4:11 pmGreat Falls

Dec 12

GTF4:51 pmGreat Falls

21h 24m

1 stop

IAD4:15 pmWashington, D.C. Dulles Intl

$475

Alaska Airlines

Dec 4

IAD7:00 amWashington, D.C. Dulles Intl

11h 11m

1 stop

GTF4:11 pmGreat Falls

Dec 12

GTF4:51 pmGreat Falls

21h 24m

1 stop

IAD4:15 pmWashington, D.C. Dulles Intl

$507

United Airlines flights from Washington, D.C. to Great Falls

Our best United Airlines deals on Washington, D.C. to Great Falls flight tickets

United Airlines

Nov 10

IAD2:05 pmWashington, D.C. Dulles Intl

9h 33m

1 stop

GTF9:38 pmGreat Falls

Nov 17

GTF2:45 pmGreat Falls

6h 30m

1 stop

IAD11:15 pmWashington, D.C. Dulles Intl

$423

United Airlines

Nov 5

IAD8:20 amWashington, D.C. Dulles Intl

7h 29m

1 stop

GTF1:49 pmGreat Falls

Dec 8

GTF6:30 amGreat Falls

8h 49m

1 stop

IAD5:19 pmWashington, D.C. Dulles Intl

$468

United Airlines

Nov 10

DCA4:09 pmWashington, D.C. Reagan-National

7h 29m

1 stop

GTF9:38 pmGreat Falls

Nov 14

GTF6:30 amGreat Falls

6h 25m

1 stop

DCA2:55 pmWashington, D.C. Reagan-National

$480

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Great Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Great Falls

IAD Washington, D.C. Dulles Intl - GTF Great Falls

IADGTF

Washington, D.C. Dulles Intl

Thu 1/7

7:05 am-12:42 pm

1 stop7h 37m

Great Falls

Sat 1/9

1:22 pm-11:31 pm

1 stop8h 09m

$388

Washington, D.C.Great Falls

IAD Washington, D.C. Dulles Intl - GTF Great Falls

IADGTF

Washington, D.C. Dulles Intl

Fri 12/4

7:00 am-12:39 pm

1 stop7h 39m

Great Falls

Sat 12/12

6:19 pm-9:16 am

2 stops12h 57m

$394

Washington, D.C.Great Falls

IAD Washington, D.C. Dulles Intl - GTF Great Falls

IADGTF

Washington, D.C. Dulles Intl

Thu 1/7

6:00 am-5:47 pm

2 stops13h 47m

Great Falls

Sat 1/9

1:22 pm-11:31 pm

1 stop8h 09m

$394

Washington, D.C.Great Falls

IAD Washington, D.C. Dulles Intl - GTF Great Falls

IADGTF

Washington, D.C. Dulles Intl

Fri 12/4

7:26 am-5:39 pm

2 stops12h 13m

Great Falls

Sat 12/12

6:19 pm-9:16 am

2 stops12h 57m

$399

Washington, D.C.Great Falls

IAD Washington, D.C. Dulles Intl - GTF Great Falls

IADGTF

Washington, D.C. Dulles Intl

Fri 12/4

3:00 pm-10:29 pm

2 stops9h 29m

Great Falls

Sat 12/12

6:19 pm-9:16 am

2 stops12h 57m

$399

Washington, D.C.Great Falls

IAD Washington, D.C. Dulles Intl - GTF Great Falls

IADGTF

Washington, D.C. Dulles Intl

Tue 11/10

2:05 pm-9:38 pm

1 stop9h 33m

Great Falls

Tue 11/17

2:45 pm-11:15 pm

1 stop6h 30m

$423

Washington, D.C.Great Falls

DCA Washington, D.C. Reagan-National - GTF Great Falls

DCAGTF

Washington, D.C. Reagan-National

Sat 11/14

12:31 pm-10:30 pm

2 stops11h 59m

Great Falls

Wed 11/18

5:30 am-6:39 pm

2 stops11h 09m

$469

Quickest round-trip

Washington, D.C.Great Falls

DCA Washington, D.C. Reagan-National - GTF Great Falls

DCAGTF

Washington, D.C. Reagan-National

Thu 1/7

4:15 pm-9:42 pm

1 stop7h 27m

Great Falls

Sat 1/9

6:25 am-2:55 pm

1 stop6h 30m

$487

Washington, D.C.Great Falls

DCA Washington, D.C. Reagan-National - GTF Great Falls

DCAGTF

Washington, D.C. Reagan-National

Fri 1/8

4:15 pm-9:42 pm

1 stop7h 27m

Great Falls

Tue 1/12

6:25 am-2:55 pm

1 stop6h 30m

$508

Washington, D.C.Great Falls

IAD Washington, D.C. Dulles Intl - GTF Great Falls

IADGTF

Washington, D.C. Dulles Intl

Fri 1/8

2:11 pm-9:42 pm

1 stop9h 31m

Great Falls

Tue 1/12

6:25 am-5:10 pm

1 stop8h 45m

$508

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to Great Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Airlines

Layovers

Other information

What is the cheapest airline that flies from Washington, D.C. to Great Falls?

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Washington, D.C. to Great Falls

When to book flights from Washington, D.C. to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Great Falls according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to Great Falls (WAS to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Great Falls

Best Price Found	$256
Fastest flight time	7h 12m
Direct flights	None

The best one-way flight to Great Falls from Washington, D.C. in the past 72 hours is $256. The best round-trip flight deal from Washington, D.C. to Great Falls found on momondo in the last 72 hours is $388.

The fastest flight from Washington, D.C. to Great Falls takes 7h 12m

There are no direct flights from Washington, D.C. to Great Falls. There are no popular flight routes from Washington, D.C. to Great Falls.

Search flight deals

Frequently asked questions about flying from Washington, D.C. to Great Falls

How far is Washington, D.C. to Great Falls by plane?
Great Falls is 1806.6 mi away from Washington, D.C.. In terms of flight time, this usually takes a little over 7h 12m.
When did momondo last update prices for flights from Washington, D.C. to Great Falls Airport?
Prices for flights from Washington, D.C. to Great Falls Airport refresh daily.
How many operators does momondo search for flights from Washington, D.C. to Great Falls Airport?
The number of operators available for flights from Washington, D.C. to Great Falls Airport is 1 as of October 2026.
How old do you have to be to fly from Washington, D.C. to Great Falls Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Great Falls Airport.
What documentation or ID do you need to fly to Great Falls Airport?
The required travel and health documents for your Great Falls Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Great Falls Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Washington, D.C. to Great Falls?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to Great Falls is United Airlines, representing 60% of all bookings. The subsequent popular airline is Delta at 40%.

Best airlines flying from Washington, D.C. to Great Falls

Compare and see reviews for airlines that fly from Washington, D.C. to Great Falls with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $254	Free Cancellation	Rating 7.3 10,453 reviews		Search United Airlines flights
Delta	PriceFrom $338	Free Cancellation	Rating 7.8 8,694 reviews		Search Delta flights

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Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Great Falls?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Great Falls for you.

Can I find flights from Washington, D.C. to Great Falls with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Great Falls from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Great Falls?

momondo provides multiple filters to help you find the best flight to Great Falls from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington, D.C. to Great Falls right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Great Falls from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.