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

Alaska Airlines, Delta, 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 April 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.

$179 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

$367Alaska Airlines

Tue, Apr 21 - Tue, Apr 28

5:06 pm - 5:40 am

GTF

IAD

10h 34m

1 stop

9:00 am - 5:35 pm

IAD

GTF

10h 35m

1 stop

$408Alaska Airlines

Tue, Apr 21 - Sat, Apr 25

6:20 pm - 9:15 am

GTF

IAD

12h 55m

2 stops

6:00 am - 5:40 pm

IAD

GTF

13h 40m

2 stops

$419Delta

Sat, Apr 18 - Wed, Apr 22

2:30 pm - 11:34 pm

GTF

IAD

7h 04m

1 stop

2:21 pm - 9:17 pm

IAD

GTF

8h 56m

1 stop

$426United Airlines

Sat, Apr 25 - Tue, Apr 28

6:15 am - 3:46 pm

GTF

IAD

7h 31m

1 stop

4:00 pm - 9:17 pm

IAD

GTF

7h 17m

1 stop

$429United Airlines

Sat, Apr 18 - Wed, Apr 22

1:09 pm - 11:44 pm

GTF

IAD

8h 35m

1 stop

7:06 am - 5:40 pm

IAD

GTF

12h 34m

2 stops

$434Delta

Sat, Apr 18 - Wed, Apr 22

6:20 pm - 9:15 am

GTF

IAD

12h 55m

2 stops

6:00 am - 5:40 pm

IAD

GTF

13h 40m

2 stops

$439Delta

Tue, Apr 21 - Sat, Apr 25

6:15 am - 3:46 pm

GTF

IAD

7h 31m

1 stop

4:00 pm - 9:17 pm

IAD

GTF

7h 17m

1 stop

$467United Airlines

Sat, Apr 25 - Tue, Apr 28

6:15 pm - 12:09 am

GTF

IAD

27h 54m

1 stop

7:10 am - 5:35 pm

IAD

GTF

12h 25m

1 stop

$472Alaska Airlines

Sat, Apr 25 - Tue, Apr 28

6:15 am - 2:59 pm

GTF

DCA

6h 44m

1 stop

4:11 pm - 9:18 pm

DCA

GTF

7h 07m

1 stop

$565United Airlines

Sat, May 2 - Tue, May 5

Alaska Airlines flights from Great Falls to District of Columbia

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

Alaska Airlines

Apr 21

GTF5:06 pmGreat Falls

10h 34m

1 stop

IAD5:40 amWashington, D.C. Dulles Intl

Apr 28

IAD7:10 amWashington, D.C. Dulles Intl

12h 25m

1 stop

GTF5:35 pmGreat Falls

$367

Alaska Airlines

Apr 21

GTF5:06 pmGreat Falls

10h 34m

1 stop

IAD5:40 amWashington, D.C. Dulles Intl

Apr 25

IAD9:00 amWashington, D.C. Dulles Intl

10h 35m

1 stop

GTF5:35 pmGreat Falls

$408

Alaska Airlines

Apr 25

GTF6:15 pmGreat Falls

27h 54m

1 stop

IAD12:09 amWashington, D.C. Dulles Intl

Apr 28

IAD7:10 amWashington, D.C. Dulles Intl

12h 25m

1 stop

GTF5:35 pmGreat Falls

$472

Delta flights from Great Falls to District of Columbia

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

Delta

Apr 18

GTF6:20 pmGreat Falls

12h 55m

2 stops

IAD9:15 amWashington, D.C. Dulles Intl

Apr 22

IAD6:00 amWashington, D.C. Dulles Intl

13h 40m

2 stops

GTF5:40 pmGreat Falls

$419

Delta

Apr 18

GTF1:09 pmGreat Falls

8h 35m

1 stop

IAD11:44 pmWashington, D.C. Dulles Intl

Apr 22

IAD7:06 amWashington, D.C. Dulles Intl

12h 34m

2 stops

GTF5:40 pmGreat Falls

$434

Delta

Apr 21

GTF6:20 pmGreat Falls

12h 55m

2 stops

IAD9:15 amWashington, D.C. Dulles Intl

Apr 25

IAD6:00 amWashington, D.C. Dulles Intl

13h 40m

2 stops

GTF5:40 pmGreat Falls

$439

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

Cheapest round-trip

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Tue 4/21

5:06 pm-5:40 am

1 stop10h 34m

Washington, D.C. Dulles Intl

Tue 4/28

7:10 am-5:35 pm

1 stop12h 25m

$367

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Tue 4/21

5:06 pm-5:40 am

1 stop10h 34m

Washington, D.C. Dulles Intl

Sat 4/25

9:00 am-5:35 pm

1 stop10h 35m

$408

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Sat 4/18

6:20 pm-9:15 am

2 stops12h 55m

Washington, D.C. Dulles Intl

Wed 4/22

6:00 am-5:40 pm

2 stops13h 40m

$419

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Sat 4/25

2:30 pm-11:34 pm

1 stop7h 04m

Washington, D.C. Dulles Intl

Tue 4/28

2:21 pm-9:17 pm

1 stop8h 56m

$426

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Sat 4/18

6:15 am-3:46 pm

1 stop7h 31m

Washington, D.C. Dulles Intl

Wed 4/22

4:00 pm-9:17 pm

1 stop7h 17m

$429

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Sat 4/18

1:09 pm-11:44 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Wed 4/22

7:06 am-5:40 pm

2 stops12h 34m

$434

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Tue 4/21

6:20 pm-9:15 am

2 stops12h 55m

Washington, D.C. Dulles Intl

Sat 4/25

6:00 am-5:40 pm

2 stops13h 40m

$439

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Sat 4/25

6:15 am-3:46 pm

1 stop7h 31m

Washington, D.C. Dulles Intl

Tue 4/28

4:00 pm-9:17 pm

1 stop7h 17m

$467

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Sat 4/25

6:15 pm-12:09 am

1 stop27h 54m

Washington, D.C. Dulles Intl

Tue 4/28

7:10 am-5:35 pm

1 stop12h 25m

$472

Quickest round-trip

Great FallsWashington, D.C.

GTF - DCA

GTFDCA

Great Falls

Sat 5/2

6:15 am-2:59 pm

1 stop6h 44m

Washington, D.C. Reagan-National

Tue 5/5

4:11 pm-9:18 pm

1 stop7h 07m

$565

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 33% 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 44m
Direct flights	None

The fastest flight from Great Falls to District of Columbia takes 6h 44m

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

Frequently asked questions about flying 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 April 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 $420	Free Cancellation	Rating 7.4 9,548 reviews		Search United Airlines flights

Why use momondo?

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.