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 6h 49m 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 6h 54m. 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 2 as of August 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.

$291 Cheap Flights from Washington, D.C. to Great Falls in 2026

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.

6:13 am - 12:38 pm

IAD

GTF

8h 25m

1 stop

1:13 pm - 11:37 pm

GTF

IAD

8h 24m

1 stop

$348Delta

Sun, Nov 1 - Sat, Nov 14

7:00 am - 12:35 pm

IAD

GTF

7h 35m

1 stop

1:15 pm - 11:43 pm

GTF

IAD

8h 28m

1 stop

$348Delta

Wed, Sep 23 - Wed, Sep 30

7:00 am - 12:35 pm

IAD

GTF

7h 35m

1 stop

1:15 pm - 11:43 pm

GTF

IAD

8h 28m

1 stop

$348Delta

Wed, Sep 23 - Wed, Sep 30

7:00 am - 12:35 pm

IAD

GTF

7h 35m

1 stop

1:15 pm - 11:43 pm

GTF

IAD

8h 28m

1 stop

$348Delta

Tue, Sep 22 - Wed, Sep 30

9:03 am - 4:39 pm

IAD

GTF

9h 36m

1 stop

5:19 pm - 5:40 am

GTF

IAD

10h 21m

1 stop

$368Alaska Airlines

Sat, Sep 26 - Fri, Oct 2

9:03 am - 4:39 pm

IAD

GTF

9h 36m

1 stop

5:19 pm - 5:40 am

GTF

IAD

10h 21m

1 stop

$368Alaska Airlines

Sat, Sep 26 - Mon, Sep 28

7:00 am - 4:17 pm

BWI

GTF

11h 17m

1 stop

4:57 pm - 5:40 am

GTF

BWI

10h 43m

1 stop

$378Alaska Airlines

Sun, Nov 1 - Sat, Nov 14

8:15 am - 1:29 pm

IAD

GTF

7h 14m

1 stop

2:25 pm - 12:32 am

GTF

IAD

8h 07m

1 stop

$380United Airlines

Tue, Sep 1 - Fri, Sep 4

4:22 pm - 9:12 pm

BWI

GTF

6h 50m

1 stop

6:15 am - 3:07 pm

GTF

BWI

6h 52m

1 stop

$418United Airlines

Sat, Sep 19 - Sat, Sep 26

12:10 pm - 9:22 pm

BWI

GTF

11h 12m

2 stops

6:15 am - 3:07 pm

GTF

BWI

6h 52m

1 stop

$423United Airlines

Sat, Sep 26 - Sat, Oct 3

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

Sep 26

IAD9:03 amWashington, D.C. Dulles Intl

9h 36m

1 stop

GTF4:39 pmGreat Falls

Oct 2

GTF5:19 pmGreat Falls

10h 21m

1 stop

IAD5:40 amWashington, D.C. Dulles Intl

$368

Alaska Airlines

Sep 23

IAD9:03 amWashington, D.C. Dulles Intl

9h 36m

1 stop

GTF4:39 pmGreat Falls

Sep 29

GTF5:19 pmGreat Falls

10h 21m

1 stop

IAD5:40 amWashington, D.C. Dulles Intl

$398

Alaska Airlines

Sep 25

IAD5:57 pmWashington, D.C. Dulles Intl

24h 42m

1 stop

GTF4:39 pmGreat Falls

Sep 30

GTF5:19 pmGreat Falls

10h 21m

1 stop

IAD5:40 amWashington, D.C. Dulles Intl

$414

Delta flights from Washington, D.C. to Great Falls

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

Delta

Sep 22

BWI7:35 amBaltimore/Washington

7h 00m

1 stop

GTF12:35 pmGreat Falls

Sep 29

GTF6:21 pmGreat Falls

9h 57m

1 stop

BWI6:18 amBaltimore/Washington

$348

Delta

Sep 10

BWI7:35 amBaltimore/Washington

7h 00m

1 stop

GTF12:35 pmGreat Falls

Sep 14

GTF6:21 pmGreat Falls

14h 33m

2 stops

BWI10:54 amBaltimore/Washington

$354

Delta

Sep 10

BWI7:35 amBaltimore/Washington

7h 00m

1 stop

GTF12:35 pmGreat Falls

Sep 14

GTF6:21 pmGreat Falls

9h 57m

1 stop

BWI6:18 amBaltimore/Washington

$368

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 - GTF

IADGTF

Washington, D.C. Dulles Intl

Sun 11/1

6:13 am-12:38 pm

1 stop8h 25m

Great Falls

Sat 11/14

1:13 pm-11:37 pm

1 stop8h 24m

$348

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Wed 9/23

7:00 am-12:35 pm

1 stop7h 35m

Great Falls

Wed 9/30

1:15 pm-11:43 pm

1 stop8h 28m

$348

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Wed 9/23

7:00 am-12:35 pm

1 stop7h 35m

Great Falls

Wed 9/30

1:15 pm-11:43 pm

1 stop8h 28m

$348

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Tue 9/22

7:00 am-12:35 pm

1 stop7h 35m

Great Falls

Wed 9/30

1:15 pm-11:43 pm

1 stop8h 28m

$348

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sat 9/26

9:03 am-4:39 pm

1 stop9h 36m

Great Falls

Fri 10/2

5:19 pm-5:40 am

1 stop10h 21m

$368

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sat 9/26

9:03 am-4:39 pm

1 stop9h 36m

Great Falls

Mon 9/28

5:19 pm-5:40 am

1 stop10h 21m

$368

BaltimoreGreat Falls

BWI - GTF

BWIGTF

Baltimore/Washington

Sun 11/1

7:00 am-4:17 pm

1 stop11h 17m

Great Falls

Sat 11/14

4:57 pm-5:40 am

1 stop10h 43m

$378

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Tue 9/1

8:15 am-1:29 pm

1 stop7h 14m

Great Falls

Fri 9/4

2:25 pm-12:32 am

1 stop8h 07m

$380

Quickest round-trip

BaltimoreGreat Falls

BWI - GTF

BWIGTF

Baltimore/Washington

Sat 9/19

4:22 pm-9:12 pm

1 stop6h 50m

Great Falls

Sat 9/26

6:15 am-3:07 pm

1 stop6h 52m

$418

BaltimoreGreat Falls

BWI - GTF

BWIGTF

Baltimore/Washington

Sat 9/26

12:10 pm-9:22 pm

2 stops11h 12m

Great Falls

Sat 10/3

6:15 am-3:07 pm

1 stop6h 52m

$423

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

Other information

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

Delta, United Airlines, and Alaska 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

Fastest flight time	6h 49m
Direct flights	None

The fastest flight from Washington, D.C. to Great Falls takes 6h 49m

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 6h 49m.
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 2 as of August 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 70% of all bookings. The subsequent popular airline is Delta at 30%.

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 $337	Free Cancellation	Rating 7.4 10,058 reviews		Search United Airlines flights
Delta	PriceFrom $338	Free Cancellation	Rating 7.8 8,483 reviews		Search Delta flights

Shelby

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.