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Cheap flights from Great Falls to Washington, D.C. from $161

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Washington, D.C. departing on 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
5:59 pm - 4:09 pm
GTF
-
DCA
20h 10m1 stop
Alaska Airlines Logo
8:00 am - 5:19 pm
DCA
-
GTF
11h 19m1 stop
$334Alaska Airlines
Sat, Jan 17 - Wed, Jan 21
Alaska Airlines Logo
6:28 pm - 5:20 pm
GTF
-
IAD
20h 52m1 stop
Alaska Airlines Logo
7:05 am - 5:48 pm
IAD
-
GTF
12h 43m1 stop
$353Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
Alaska Airlines Logo
5:59 pm - 4:09 pm
GTF
-
DCA
20h 10m1 stop
Alaska Airlines Logo
5:09 pm - 5:19 pm
DCA
-
GTF
26h 10m2 stops
$409Alaska Airlines
Sat, Jan 17 - Wed, Jan 21
United Airlines Logo
2:30 pm - 11:20 pm
GTF
-
IAD
6h 50m1 stop
United Airlines Logo
4:00 pm - 9:17 pm
IAD
-
GTF
7h 17m1 stop
$468United Airlines
Sat, Mar 28 - Sun, Apr 5
Delta Logo
1:15 pm - 11:44 pm
GTF
-
BWI
8h 29m1 stop
Delta Logo
7:00 am - 12:32 pm
BWI
-
GTF
7h 32m1 stop
$502Delta
Sat, Jan 17 - Sat, Jan 24
Delta Logo
5:30 am - 9:09 pm
GTF
-
BWI
13h 39m2 stops
Delta Logo
7:00 am - 12:32 pm
BWI
-
GTF
7h 32m1 stop
$508Delta
Sat, Jan 17 - Sat, Jan 24
Delta Logo
1:05 pm - 11:22 pm
GTF
-
BWI
8h 17m1 stop
Delta Logo
7:01 am - 12:24 pm
BWI
-
GTF
7h 23m1 stop
$514Delta
Sat, Mar 28 - Sun, Apr 5
United Airlines Logo
2:25 pm - 11:18 pm
GTF
-
IAD
6h 53m1 stop
United Airlines Logo
10:18 pm - 1:43 pm
IAD
-
GTF
17h 25m2 stops
$540United Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
2:29 pm - 11:15 pm
GTF
-
BWI
6h 46m1 stop
United Airlines Logo
5:18 pm - 9:53 pm
BWI
-
GTF
30h 35m2 stops
$569United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
2:29 pm - 2:11 pm
GTF
-
BWI
21h 42m2 stops
United Airlines Logo
5:18 pm - 9:53 pm
BWI
-
GTF
30h 35m2 stops
$580United Airlines
Sat, Jan 17 - Tue, Jan 20

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

Our best United Airlines deals on Great Falls to Washington, D.C. flight tickets
United Airlines
Mar 28
GTF2:30 pmGreat Falls
6h 50m
1 stop
IAD11:20 pmWashington, D.C. Dulles Intl
Apr 5
IAD4:00 pmWashington, D.C. Dulles Intl
7h 17m
1 stop
GTF9:17 pmGreat Falls
$468
Find similar
United Airlines
Feb 14
GTF2:25 pmGreat Falls
6h 53m
1 stop
IAD11:18 pmWashington, D.C. Dulles Intl
Feb 18
IAD10:18 pmWashington, D.C. Dulles Intl
17h 25m
2 stops
GTF1:43 pmGreat Falls
$540
Find similar
United Airlines
Jan 17
GTF2:29 pmGreat Falls
6h 46m
1 stop
BWI11:15 pmBaltimore/Washington
Jan 20
BWI5:18 pmBaltimore/Washington
30h 35m
2 stops
GTF9:53 pmGreat Falls
$569
Find similar

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

Our best Alaska Airlines deals on Great Falls to Washington, D.C. flight tickets
Alaska Airlines
Jan 17
GTF5:59 pmGreat Falls
20h 10m
1 stop
DCA4:09 pmWashington, D.C. Reagan-National
Jan 21
DCA8:00 amWashington, D.C. Reagan-National
11h 19m
1 stop
GTF5:19 pmGreat Falls
$334
Find similar
Alaska Airlines
Feb 14
GTF6:28 pmGreat Falls
20h 52m
1 stop
IAD5:20 pmWashington, D.C. Dulles Intl
Feb 18
IAD7:05 amWashington, D.C. Dulles Intl
12h 43m
1 stop
GTF5:48 pmGreat Falls
$353
Find similar
Alaska Airlines
Jan 17
GTF5:59 pmGreat Falls
20h 10m
1 stop
DCA4:09 pmWashington, D.C. Reagan-National
Jan 21
DCA5:09 pmWashington, D.C. Reagan-National
26h 10m
2 stops
GTF5:19 pmGreat Falls
$409
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Great Falls to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 26, 2025.
Use the filters below to find and compare flights from Great Falls to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsWashington, D.C.

GTF - DCA

GTFDCA

Great Falls

Sat 1/17

5:59 pm-4:09 pm

1 stop20h 10m

Washington, D.C. Reagan-National

Wed 1/21

8:00 am-5:19 pm

1 stop11h 19m

$334

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Sat 2/14

6:28 pm-5:20 pm

1 stop20h 52m

Washington, D.C. Dulles Intl

Wed 2/18

7:05 am-5:48 pm

1 stop12h 43m

$353

Great FallsWashington, D.C.

GTF - DCA

GTFDCA

Great Falls

Sat 1/17

5:59 pm-4:09 pm

1 stop20h 10m

Washington, D.C. Reagan-National

Wed 1/21

5:09 pm-5:19 pm

2 stops26h 10m

$409

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Sat 3/28

2:30 pm-11:20 pm

1 stop6h 50m

Washington, D.C. Dulles Intl

Sun 4/5

4:00 pm-9:17 pm

1 stop7h 17m

$468

Great FallsBaltimore

GTF - BWI

GTFBWI

Great Falls

Sat 1/17

1:15 pm-11:44 pm

1 stop8h 29m

Baltimore/Washington

Sat 1/24

7:00 am-12:32 pm

1 stop7h 32m

$502

Great FallsBaltimore

GTF - BWI

GTFBWI

Great Falls

Sat 1/17

5:30 am-9:09 pm

2 stops13h 39m

Baltimore/Washington

Sat 1/24

7:00 am-12:32 pm

1 stop7h 32m

$508

Great FallsBaltimore

GTF - BWI

GTFBWI

Great Falls

Sat 3/28

1:05 pm-11:22 pm

1 stop8h 17m

Baltimore/Washington

Sun 4/5

7:01 am-12:24 pm

1 stop7h 23m

$514

Great FallsWashington, D.C.

GTF - IAD

GTFIAD

Great Falls

Sat 2/14

2:25 pm-11:18 pm

1 stop6h 53m

Washington, D.C. Dulles Intl

Wed 2/18

10:18 pm-1:43 pm

2 stops17h 25m

$540

Great FallsBaltimore

GTF - BWI

GTFBWI

Great Falls

Sat 1/17

2:29 pm-11:15 pm

1 stop6h 46m

Baltimore/Washington

Tue 1/20

5:18 pm-9:53 pm

2 stops30h 35m

$569

Great FallsBaltimore

GTF - BWI

GTFBWI

Great Falls

Sat 1/17

2:29 pm-2:11 pm

2 stops21h 42m

Baltimore/Washington

Tue 1/20

5:18 pm-9:53 pm

2 stops30h 35m

$580

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

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

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

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Great Falls is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $585. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Great Falls to Washington, D.C. for around $702.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from Great Falls to Washington, D.C. when you can find flight prices for as low as $582. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $677. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Great Falls to Washington, D.C. flights?

You could potentially save up to 8% on your flight if you consider stops on a Great Falls to Washington, D.C. flight.

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

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

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

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

Fastest flight time

6h 35m

Direct flights

None
The fastest flight from Great Falls to Washington, D.C. takes 6h 35m
There are no direct flights from Great Falls to Washington, D.C.. There are no popular flight routes from Great Falls to Washington, D.C..
Search flight deals

  • How far is Great Falls to Washington, D.C. by plane?

    The distance between Great Falls and Washington, D.C. is about 1806.6 mi. Typically, this will take 6h 35m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Great Falls Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Great Falls to Washington, D.C.?

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

Compare and see reviews for airlines that fly from Great Falls to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $420Free CancellationRating
7.4
9,116 reviews
Search United Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Gaithersburg
Reston
Manassas
Fairfax
Glen Burnie
Linthicum Heights
Bethesda

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Great Falls to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Washington, D.C. from Great Falls on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Great Falls to Washington, D.C..

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

Yes. momondo can track prices for Great Falls to Washington, D.C. 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.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport