What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Great Falls round-trip?

Flying on Delta is currently your cheapest option to Great Falls, with prices starting at $432. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and United Airlines, with the lowest prices starting at $439 and $542, respectively. Delta is currently priced 33% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Great Falls one-way?

The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $210. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Great Falls for a low price.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Great Falls?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Great Falls (average of $367). Flying from Washington, D.C. Dulles Intl Airport to Great Falls in July is currently the most expensive (average of $574). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Great Falls?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Great Falls flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Great Falls ranges from 0.5 - 2.5 inches per month. June is typically the wettest month, when rainfall can reach 2.5 in. January is typically the driest time to visit Great Falls when rainfall is around 0.5 in.

If weather is an important factor for your trip to Great Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Great Falls?

Users have found that flying from Washington, D.C. Dulles Intl Airport to Great Falls on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Great Falls?

The best pricing can be found in the month of August. Prices to Great Falls from Washington, D.C. Dulles Intl Airport average $631. You can even find prices in August for less than $631, as users have found deals to Great Falls from as low as $316. The month of January appears to be one of the more expensive times to travel to Great Falls from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 43%.

What is the cheapest time of day to fly from IAD to GTF?

Unlike in the morning, when flights are generally more expensive, you can save up to 24% on flights from Washington, D.C. Dulles Intl Airport to Great Falls by exploring options for tickets at noon.

What airport do you fly into for flights to Great Falls from Washington, D.C. Dulles Intl?

Great Falls (GTF), located 3.5 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Great Falls. 1 airline have flights to Great Falls from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Great Falls should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day.

Can I find deals for flights from Dulles Intl to Great Falls that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Great Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Great Falls?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Great Falls.

Can I find deals for business class flights from Dulles Intl to Great Falls?

Yes. Cheapflights offers flight deals from Dulles Intl to Great Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$207+ Flights from Washington, D.C. Dulles Intl Airport to Great Falls

Q: How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Great Falls?

Airfare is above average for this route at the moment. Washington, D.C. Dulles Intl Airport to Great Falls flights typically cost between $377 and $404 in August. The cheapest round-trip price found within the last 3 days was $432 on Delta (Aug 26-Sep 3).

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Dulles Intl to Great Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Great Falls

Round-trip from	$432 (Delta)
One-way from	$207 (Trip.com)
Popular in	December
Cheapest in	March
Average price	$640

From Washington, D.C. Dulles Intl to Great Falls

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Great Falls

Search Deals

Highest demand for flights based on searches. 24% potential increase in price ($210 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease ($50 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Dulles Intl to Great Falls

Cheapest flights from Dulles Intl to Great Falls
Explore the most affordable flight options available from Dulles Intl to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Tue 8/262:15 pmIAD - GTF

1 stop8h 19mDelta

Wed 9/36:00 amGTF - IAD

1 stop5h 25mDelta

Deal found 7/27

$432

Tue 9/237:00 amIAD - GTF

1 stop10h 49mAlaska Airlines

Sat 9/274:29 pmGTF - IAD

1 stop29h 54mAlaska Airlines

Deal found 7/27

$439

Sat 9/133:48 pmIAD - GTF

1 stop7h 40mUnited Airlines

Sun 9/217:00 amGTF - IAD

1 stop6h 34mUnited Airlines

Deal found 7/27

$542

Sat 9/135:52 pmIAD - GTF

2 stops23h 57mMultiple Airlines

Sun 9/214:29 pmGTF - IAD

2 stops22h 23mMultiple Airlines

Deal found 7/27

$589

Best flights from Dulles Intl to Great Falls
Discover carefully curated flight deals from Dulles Intl to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Tue 8/262:15 pmIAD - GTF

1 stop8h 19mDelta

Wed 9/36:00 amGTF - IAD

1 stop5h 25mDelta

Deal found 7/27

$432

Tue 9/237:00 amIAD - GTF

1 stop10h 49mAlaska Airlines

Sat 9/274:29 pmGTF - IAD

1 stop29h 54mAlaska Airlines

Deal found 7/27

$439

Sat 9/133:48 pmIAD - GTF

1 stop7h 40mUnited Airlines

Sun 9/217:00 amGTF - IAD

1 stop6h 34mUnited Airlines

Deal found 7/27

$542

Sat 9/135:52 pmIAD - GTF

2 stops23h 57mMultiple Airlines

Sun 9/214:29 pmGTF - IAD

2 stops22h 23mMultiple Airlines

Deal found 7/27

$589

Last-minute flights from Dulles Intl to Great Falls
Discover last-minute flight deals from Dulles Intl to Great Falls. Data last updated July 29, 2025 and is based on user searches.

Tue 7/293:56 pmIAD - GTF

1 stop7h 17mUnited Airlines

Fri 8/86:25 amGTF - IAD

1 stop8h 19mUnited Airlines

Deal found 7/28

$732

Sat 8/237:00 amIAD - GTF

1 stop10h 49mAlaska Airlines

Sat 8/304:29 pmGTF - IAD

1 stop13h 03mAlaska Airlines

Deal found 7/27

$459

Tue 8/262:15 pmIAD - GTF

1 stop8h 19mDelta

Wed 9/36:00 amGTF - IAD

1 stop5h 25mDelta

Deal found 7/27

$432

One-way flights from Dulles Intl to Great Falls
Search for one-way flight options from Dulles Intl to Great Falls. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Sun 8/107:30 amIAD - GTF

1 stop27h 54mMultiple Airlines

Deal found 7/29

$207

Tue 9/22:39 pmIAD - GTF

1 stop8h 49mUnited Airlines

Deal found 7/29

$210

Tue 9/25:52 pmIAD - GTF

2 stops23h 57mAlaska Airlines

Deal found 7/29

$233

Wed 8/277:35 amIAD - GTF

2 stops11h 51mDelta

Deal found 7/26

$257

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Tue 8/26

2:15 pm-8:34 pm

1 stop8h 19m

Great Falls

Wed 9/3

6:00 am-1:25 pm

1 stop5h 25m

$432

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Tue 9/23

7:00 am-3:49 pm

1 stop10h 49m

Great Falls

Sat 9/27

4:29 pm-12:23 am

1 stop29h 54m

$439

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sat 9/13

3:48 pm-9:28 pm

1 stop7h 40m

Great Falls

Sun 9/21

7:00 am-3:34 pm

1 stop6h 34m

$542

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sat 9/13

5:52 pm-3:49 pm

2 stops23h 57m

Great Falls

Sun 9/21

4:29 pm-4:52 pm

2 stops22h 23m

$589

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sun 8/10

7:30 am-9:24 am

1 stop27h 54m

$207

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Tue 9/2

2:39 pm-9:28 pm

1 stop8h 49m

$210

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Tue 9/2

5:52 pm-3:49 pm

2 stops23h 57m

$233

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Wed 8/27

7:35 am-5:26 pm

2 stops11h 51m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Dulles Intl to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from Dulles Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Great Falls

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Great Falls?

Reviews of airlines servicing Great Falls

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Great Falls, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Delta

8.0

Very good

7,977 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

United Airlines

7.4

Good

8,893 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

What airport do you fly into for flights to Great Falls from Washington, D.C. Dulles Intl?
Great Falls (GTF), located 3.5 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Great Falls. 1 airline have flights to Great Falls from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Great Falls should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Great Falls round-trip?
Flying on Delta is currently your cheapest option to Great Falls, with prices starting at $432. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and United Airlines, with the lowest prices starting at $439 and $542, respectively. Delta is currently priced 33% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Great Falls one-way?
The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $210. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Great Falls for a low price.
Can I find deals for flights from Dulles Intl to Great Falls that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Great Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Great Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Great Falls.
Can I find deals for business class flights from Dulles Intl to Great Falls?
Yes. Cheapflights offers flight deals from Dulles Intl to Great Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Great Falls?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Great Falls (average of $367). Flying from Washington, D.C. Dulles Intl Airport to Great Falls in July is currently the most expensive (average of $574). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Shelby

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Great Falls

Dulles Intl to Bozeman flights

Baltimore to Bozeman flights

Reagan-National to Bozeman flights

Reagan-National to Kalispell flights

Baltimore to Kalispell flights

Dulles Intl to Kalispell flights

Dulles Intl to Missoula flights

Dulles Intl to Billings flights

Baltimore to Missoula flights

Reagan-National to Billings flights

Baltimore to Billings flights

Reagan-National to Missoula flights

Dulles Intl to Helena flights

Dulles Intl to West Yellowstone flights

Baltimore to Great Falls flights

Reagan-National to Great Falls flights

Reagan-National to Helena flights

Baltimore to West Yellowstone flights

Baltimore to Helena flights

Dulles Intl to Cody flights

Baltimore to Cody flights

Baltimore to Butte flights

Reagan-National to West Yellowstone flights

Dulles Intl to Butte flights

Reagan-National to Cody flights

Reagan-National to Butte flights

Dulles Intl to Sidney flights

Other flights to Great Falls

Seattle to Great Falls flights

Great Falls to Las Vegas flights

Great Falls to Salt Lake City flights

Great Falls to Minneapolis flights

Great Falls to Seattle flights

Great Falls to Salt Lake City flights

Great Falls to Seattle flights

Great Falls to Minneapolis flights

Great Falls to Denver flights

Great Falls to Chicago O'Hare Intl Airport flights

Top airline flying from Dulles Intl to Great Falls

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$384	Average$682	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$207+ Cheap flights from Dulles Intl (IAD) to Great Falls (GTF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Great Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Great Falls

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to Great Falls

Cheapest flights from Dulles Intl to Great FallsExplore the most affordable flight options available from Dulles Intl to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Dulles Intl to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Dulles Intl to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Great Falls

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Great Falls?

Reviews of airlines servicing Great Falls

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Great Falls, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Great Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Great Falls from Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Great Falls round-trip?

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Great Falls one-way?

Can I find deals for flights from Dulles Intl to Great Falls that include hotel bookings?

How can I find direct flights from Dulles Intl to Great Falls?

Can I find deals for business class flights from Dulles Intl to Great Falls?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Great Falls?

Traveling to a place near Great Falls?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Great Falls

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Dulles Intl to Great Falls

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Dulles Intl to Great Falls
Explore the most affordable flight options available from Dulles Intl to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.