What is the cheapest airline that flies from Great Falls to District of Columbia?

Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from Great Falls to District of Columbia

When did momondo last update prices for flights from Great Falls Airport to District of Columbia?

Prices for flights from Great Falls Airport to District of Columbia refresh daily.

How many operators does momondo search for flights from Great Falls Airport to District of Columbia?

As of February 2026, there is 1 operator available to choose from for flights from Great Falls Airport to District of Columbia.

How old do you have to be to fly from Great Falls Airport to District of Columbia?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Great Falls Airport to District of Columbia.

What documentation or ID do you need to fly to District of Columbia?

The required travel and health documents for your District of Columbia 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 District of Columbia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$174 Cheap Flights from Great Falls to District of Columbia in 2026

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Find the cheapest flights from Great Falls to District of Columbia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:06 pm - 5:40 am

GTF

IAD

10h 34m

1 stop

7:10 am - 5:35 pm

IAD

GTF

12h 25m

1 stop

$355Alaska Airlines

Mon, Apr 20 - Wed, Apr 22

2:35 pm - 11:34 pm

GTF

IAD

6h 59m

1 stop

2:37 pm - 9:18 pm

IAD

GTF

8h 41m

1 stop

$389United Airlines

Sat, May 2 - Fri, May 8

4:57 pm - 5:40 am

GTF

IAD

10h 43m

1 stop

7:05 am - 4:17 pm

IAD

GTF

11h 12m

1 stop

$438Alaska Airlines

Fri, Mar 6 - Fri, Mar 13

5:06 pm - 8:00 pm

GTF

DCA

24h 54m

2 stops

8:00 am - 5:35 pm

DCA

GTF

11h 35m

1 stop

$466Alaska Airlines

Mon, Apr 20 - Wed, Apr 22

2:30 pm - 11:52 am

GTF

IAD

19h 22m

2 stops

2:21 pm - 9:17 pm

IAD

GTF

8h 56m

1 stop

$478United Airlines

Mon, Apr 20 - Wed, Apr 22

5:30 am - 6:35 pm

GTF

DCA

11h 05m

2 stops

9:45 am - 5:40 pm

DCA

GTF

9h 55m

2 stops

$479Delta

Mon, Apr 20 - Wed, Apr 22

5:30 am - 11:55 pm

GTF

IAD

16h 25m

2 stops

7:00 am - 5:40 pm

IAD

GTF

12h 40m

2 stops

$483Delta

Mon, Apr 20 - Wed, Apr 22

5:06 pm - 8:00 pm

GTF

DCA

24h 54m

2 stops

6:59 pm - 5:35 pm

DCA

GTF

24h 36m

2 stops

$520Alaska Airlines

Mon, Apr 20 - Wed, Apr 22

6:25 am - 4:47 pm

GTF

IAD

8h 22m

1 stop

2:12 pm - 9:09 pm

IAD

GTF

8h 57m

1 stop

$523United Airlines

Tue, Mar 3 - Sat, Mar 7

6:20 pm - 9:10 am

GTF

DCA

12h 50m

2 stops

5:10 pm - 10:29 pm

DCA

GTF

7h 19m

1 stop

$649Delta

Tue, Mar 3 - Sat, Mar 7

Delta flights from Great Falls to District of Columbia

Our best Delta deals on Great Falls to District of Columbia flight tickets

Delta

Apr 20

GTF5:30 amGreat Falls

11h 05m

2 stops

DCA6:35 pmWashington, D.C. Reagan-National

Apr 22

DCA9:45 amWashington, D.C. Reagan-National

9h 55m

2 stops

GTF5:40 pmGreat Falls

$479

Delta

Apr 20

GTF5:30 amGreat Falls

16h 25m

2 stops

IAD11:55 pmWashington, D.C. Dulles Intl

Apr 22

IAD7:00 amWashington, D.C. Dulles Intl

12h 40m

2 stops

GTF5:40 pmGreat Falls

$483

Delta

Apr 20

GTF5:30 amGreat Falls

16h 25m

2 stops

IAD11:55 pmWashington, D.C. Dulles Intl

Apr 22

IAD7:00 amWashington, D.C. Dulles Intl

12h 40m

2 stops

GTF5:40 pmGreat Falls

$519

United Airlines flights from Great Falls to District of Columbia

Our best United Airlines deals on Great Falls to District of Columbia flight tickets

United Airlines

May 2

GTF2:35 pmGreat Falls

6h 59m

1 stop

IAD11:34 pmWashington, D.C. Dulles Intl

May 8

IAD2:37 pmWashington, D.C. Dulles Intl

8h 41m

1 stop

GTF9:18 pmGreat Falls

$389

United Airlines

Apr 20

GTF2:30 pmGreat Falls

14h 57m

2 stops

IAD7:27 amWashington, D.C. Dulles Intl

Apr 22

IAD2:21 pmWashington, D.C. Dulles Intl

8h 56m

1 stop

GTF9:17 pmGreat Falls

$478

United Airlines

Mar 3

GTF6:25 amGreat Falls

8h 22m

1 stop

IAD4:47 pmWashington, D.C. Dulles Intl

Mar 7

IAD2:12 pmWashington, D.C. Dulles Intl

8h 57m

1 stop

GTF9:09 pmGreat Falls

$523

momondo Fare Finder

Use the filters below to find and compare flights from Great Falls to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Mon 4/20

5:06 pm-5:40 am

1 stop10h 34m

Washington, D.C. Dulles Intl

Wed 4/22

7:10 am-5:35 pm

1 stop12h 25m

$355

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Sat 5/2

2:35 pm-11:34 pm

1 stop6h 59m

Washington, D.C. Dulles Intl

Fri 5/8

2:37 pm-9:18 pm

1 stop8h 41m

$389

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Fri 3/6

4:57 pm-5:40 am

1 stop10h 43m

Washington, D.C. Dulles Intl

Fri 3/13

7:05 am-4:17 pm

1 stop11h 12m

$438

Great FallsWashington, D.C.

GTF - DCA

GTFDCA

Great Falls

Mon 4/20

5:06 pm-8:00 pm

2 stops24h 54m

Washington, D.C. Reagan-National

Wed 4/22

8:00 am-5:35 pm

1 stop11h 35m

$466

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Mon 4/20

2:30 pm-11:52 am

2 stops19h 22m

Washington, D.C. Dulles Intl

Wed 4/22

2:21 pm-9:17 pm

1 stop8h 56m

$478

Great FallsWashington, D.C.

GTF - DCA

GTFDCA

Great Falls

Mon 4/20

5:30 am-6:35 pm

2 stops11h 05m

Washington, D.C. Reagan-National

Wed 4/22

9:45 am-5:40 pm

2 stops9h 55m

$479

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Mon 4/20

5:30 am-11:55 pm

2 stops16h 25m

Washington, D.C. Dulles Intl

Wed 4/22

7:00 am-5:40 pm

2 stops12h 40m

$483

Great FallsWashington, D.C.

GTF - DCA

GTFDCA

Great Falls

Mon 4/20

5:06 pm-8:00 pm

2 stops24h 54m

Washington, D.C. Reagan-National

Wed 4/22

6:59 pm-5:35 pm

2 stops24h 36m

$520

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Tue 3/3

6:25 am-4:47 pm

1 stop8h 22m

Washington, D.C. Dulles Intl

Sat 3/7

2:12 pm-9:09 pm

1 stop8h 57m

$523

Great FallsWashington, D.C.

GTF - DCA

GTFDCA

Great Falls

Tue 3/3

6:20 pm-9:10 am

2 stops12h 50m

Washington, D.C. Reagan-National

Sat 3/7

5:10 pm-10:29 pm

1 stop7h 19m

$649

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 Great Falls to District of Columbia

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

Prices

Airlines

Can stopping save me money on Great Falls to District of Columbia flights?

You could potentially save up to 17% on your flight if you consider stops on a Great Falls to District of Columbia flight.

Cheap Great Falls to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to District of Columbia

Fastest flight time	6h 34m
Direct flights	None

The fastest flight from Great Falls to District of Columbia takes 6h 34m

There are no direct flights from Great Falls to District of Columbia. There are no popular flight routes from Great Falls to District of Columbia.

Search flight deals

When did momondo last update prices for flights from Great Falls Airport to District of Columbia?
Prices for flights from Great Falls Airport to District of Columbia refresh daily.
How many operators does momondo search for flights from Great Falls Airport to District of Columbia?
As of February 2026, there is 1 operator available to choose from for flights from Great Falls Airport to District of Columbia.
How old do you have to be to fly from Great Falls Airport to District of Columbia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Great Falls Airport to District of Columbia.
What documentation or ID do you need to fly to District of Columbia?
The required travel and health documents for your District of Columbia 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 District of Columbia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Great Falls to District of Columbia

Compare and see reviews for airlines that fly from Great Falls to District of Columbia with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $398	Free Cancellation	Rating 7.4 9,308 reviews		Search United Airlines flights

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Why should I use momondo to find a flight deal from Great Falls to District of Columbia?

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 Great Falls to District of Columbia for you.

Can I find flights from Great Falls to District of Columbia with flexible booking policies on momondo?

All flight searches from Great Falls to District of Columbia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Great Falls to District of Columbia?

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

I’m not ready to book a flight from Great Falls to District of Columbia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Great Falls to District of Columbia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.