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$185+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — GTF
May 25 — Jun 11
Mon 5/25
Mon 6/1
1 adult, Economy
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Cheap 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 April 25, 2026.

This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:30 am
IAD
-
GTF
1 stop9h 11m
United Airlines
Fri 6/52:37 pm
GTF
-
IAD
1 stop8h 08m
United Airlines
Deal found 4/22$358
This Alaska Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:38 pm
IAD
-
GTF
1 stop26h 34m
Alaska Airlines
Sat 5/306:52 pm
GTF
-
IAD
1 stop10h 42m
Alaska Airlines
Deal found 4/23$396
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:10 am
IAD
-
GTF
1 stop7h 36m
United Airlines
Thu 8/62:37 pm
GTF
-
IAD
1 stop8h 08m
United Airlines
Deal found 4/20$401
This Expedia deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:00 am
IAD
-
GTF
1 stop14h 12m
Alaska Airlines
Tue 5/266:52 pm
GTF
-
IAD
1 stop10h 42m
Alaska Airlines
Deal found 4/22$402
This Alaska Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:00 am
IAD
-
GTF
1 stop11h 39m
Alaska Airlines
Mon 9/145:19 pm
GTF
-
IAD
1 stop10h 21m
Alaska Airlines
Deal found 4/20$408
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:08 am
IAD
-
GTF
2 stops13h 31m
Delta
Mon 5/116:19 pm
GTF
-
IAD
2 stops12h 57m
Delta
Deal found 4/22$419
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/611:15 am
IAD
-
GTF
2 stops13h 11m
Delta
Sun 6/146:35 pm
GTF
-
IAD
2 stops13h 45m
Delta
Deal found 4/23$424
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/72:37 pm
IAD
-
GTF
1 stop8h 41m
United Airlines
Mon 5/112:35 pm
GTF
-
IAD
1 stop6h 59m
United Airlines
Deal found 4/22$425
This United Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:37 pm
IAD
-
GTF
1 stop8h 41m
United Airlines
Tue 5/122:35 pm
GTF
-
IAD
1 stop6h 59m
United Airlines
Deal found 4/23$438
This Expedia deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:38 pm
IAD
-
GTF
1 stop26h 34m
Alaska Airlines
Mon 5/256:52 pm
GTF
-
IAD
1 stop10h 42m
Alaska Airlines
Deal found 4/23$455
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 am
IAD
-
GTF
2 stops13h 39m
Delta
Sat 9/121:10 pm
GTF
-
IAD
1 stop8h 41m
Delta
Deal found 4/20$458

Find flight deals from Dulles Intl to Great Falls

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Great Falls (GTF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$358
(United Airlines)

One-way from

$185
(Alaska Airlines)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Great Falls flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Great Falls flights.
Search Deals
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

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Great Falls 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, Cheapflights users made 2,558,603 searches. Data last updated April 25, 2026.
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

Cheapest round-trip

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sat 5/23

6:00 am-6:12 pm

1 stop14h 12m

Great Falls

Sat 5/30

6:52 pm-7:34 am

1 stop10h 42m

$396

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sat 8/22

7:00 am-4:38 pm

1 stop11h 38m

Great Falls

Sat 9/12

5:19 pm-5:40 am

1 stop10h 21m

$396

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Thu 9/10

7:00 am-4:39 pm

1 stop11h 39m

Great Falls

Mon 9/14

5:19 pm-5:40 am

1 stop10h 21m

$408

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sat 8/22

6:00 am-5:39 pm

2 stops13h 39m

Great Falls

Sat 9/12

1:10 pm-11:51 pm

1 stop8h 41m

$458

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sat 6/6

6:00 am-6:12 pm

1 stop14h 12m

Great Falls

Sun 6/14

5:09 pm-6:39 am

1 stop11h 30m

$505

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Thu 7/2

8:27 am-5:44 pm

2 stops11h 17m

Great Falls

Wed 7/8

6:25 pm-9:26 am

2 stops13h 01m

$529

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Fri 5/8

10:11 am-10:26 pm

2 stops14h 15m

Great Falls

Tue 5/12

1:07 pm-12:51 am

2 stops9h 44m

$599
Quickest round-trip

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sat 5/23

6:00 am-12:27 pm

2 stops8h 27m

Great Falls

Sat 5/30

6:19 pm-9:16 am

2 stops12h 57m

$629
Cheapest one-way

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sun 5/24

6:00 am-6:12 pm

1 stop14h 12m

$185

Washington, D.C.Great Falls

IAD - GTF

IADGTF

Washington, D.C. Dulles Intl

Sun 5/24

2:35 pm-9:34 pm

1 stop8h 59m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Dulles Intl to Great Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Great Falls in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Great Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Great Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Great Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Great Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Great Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Reviews of airlines servicing Great Falls

Get insights into the airlines that provide service to Great Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Great Falls. Reviews last updated April 25, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Great Falls, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,650 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,650 reviews
United Airlines
7.4
Good
9,650 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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?

    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.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Great Falls?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Great Falls in 13h 39m. Fly via Alaska Airlines or Delta to get the fastest option. The distance between Washington, D.C. Dulles Intl Airport and Great Falls is about 1789 mi. This flight may include one or multiple stops.

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

    Flying on United Airlines is currently your cheapest option to Great Falls, with prices starting at $337.

  • 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.

See more FAQs

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Top airline flying from Dulles Intl to Great Falls

Discover the top airline that operate flights from Dulles Intl to Great Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$387Average$494FlexibilityNo cancel feeOn-time69%

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