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$641+ Cheap flights from Great Falls (GTF) to the United Kingdom

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — LHR
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Great Falls to United Kingdom

Cheapest flights from Great Falls to United Kingdom
Explore the most affordable flight options available from Great Falls to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Delta deal was found by Cheapflights users on 1/27. 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 2/266:20 pm
GTF
-
LHR
2 stops18h 50m
Delta
Thu 3/56:20 am
LHR
-
GTF
2 stops18h 13m
Delta
Deal found 1/27$641
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Sun 10/256:15 am
GTF
-
LHR
1 stop21h 25m
United Airlines
Wed 11/411:10 am
LHR
-
GTF
2 stops33h 19m
United Airlines
Deal found 1/25$659
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/264:57 pm
GTF
-
LHR
1 stop31h 13m
Multiple Airlines
Thu 3/52:55 pm
LHR
-
GTF
1 stop32h 22m
Multiple Airlines
Deal found 1/27$661
This American Airlines deal was found by Cheapflights users on 1/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:55 pm
GTF
-
LHR
2 stops32h 00m
Multiple Airlines
Wed 11/42:10 pm
LHR
-
GTF
2 stops33h 03m
Multiple Airlines
Deal found 1/25$699
This KLM deal was found by Cheapflights users on 1/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/111:12 pm
GTF
-
LHR
1 stop13h 48m
KLM
Sun 2/228:25 pm
LHR
-
GTF
2 stops28h 08m
KLM
Deal found 1/26$831
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Wed 2/42:29 pm
GTF
-
LHR
1 stop12h 11m
United Airlines
Wed 3/116:35 am
LHR
-
GTF
2 stops20h 36m
United Airlines
Deal found 1/27$833
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Wed 2/116:10 am
GTF
-
LHR
2 stops21h 40m
United Airlines
Sun 2/2211:10 am
LHR
-
GTF
2 stops33h 33m
United Airlines
Deal found 1/26$835
This United Airlines deal was found by Cheapflights users on 1/25. 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 1/302:29 pm
GTF
-
LHR
1 stop12h 11m
United Airlines
Tue 2/34:40 pm
LHR
-
GTF
2 stops52h 08m
United Airlines
Deal found 1/25$841
This United Airlines deal was found by Cheapflights users on 1/25. 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 1/306:10 am
GTF
-
EDI
2 stops18h 45m
United Airlines
Tue 2/39:25 am
EDI
-
GTF
2 stops19h 28m
United Airlines
Deal found 1/25$933

Find flight deals from Great Falls to United Kingdom

Keep the following information in mind while searching for Great Falls to United Kingdom flight deals. Data was last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$641
(Delta)
Provider with most accurate pricing for Great Falls-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Great Falls-London (LON) flights.
Search Deals
From Great Falls to United Kingdom
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Great Falls to United Kingdom 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 January 27, 2026.
Use the filters below to find and compare flights from Great Falls to the United Kingdom that are best for you.

Fly from

Great Falls

Fly to

United Kingdom

Route

Depart

Return

Price

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Thu 2/26

6:20 pm-8:10 pm

2 stops18h 50m

London Heathrow

Thu 3/5

6:20 am-5:33 pm

2 stops18h 13m

$641

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Thu 2/26

4:57 pm-7:10 am

1 stop31h 13m

London Heathrow

Thu 3/5

2:55 pm-4:17 pm

1 stop32h 22m

$661

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 2/11

1:12 pm-10:00 am

1 stop13h 48m

London Heathrow

Sun 2/22

8:25 pm-5:33 pm

2 stops28h 08m

$831

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 2/11

2:29 pm-9:20 pm

2 stops23h 51m

London Heathrow

Sun 2/22

11:10 am-1:43 pm

2 stops33h 33m

$835

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 2/11

1:12 pm-10:00 am

1 stop13h 48m

London Heathrow

Sun 2/22

10:45 am-10:29 pm

1 stop18h 44m

$859

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Best time to book a flight from Great Falls to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Great Falls 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 Great Falls to the United Kingdom
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated January 27, 2026.
Read through reviews of airlines operating flights from Great Falls to the United Kingdom, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,119 reviews

Food

7.2

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,119 reviews
Delta
7.9
Good
8,119 reviews

Food

7.2

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,205 reviews
Delta
7.9
Good
8,119 reviews

Food

7.2

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Great Falls to United Kingdom. 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 from for flights from Great Falls to United Kingdom?

    For a flight from Great Falls to United Kingdom, you will be flying from Great Falls. Great Falls (GTF) is just 3.5 mi from the center of the city.

  • How long is the flight from Great Falls to United Kingdom?

    A quick flight from Great Falls to United Kingdom can take about 13h 48m. Delta provides one of the quickest options available for as low as $831. The distance between Great Falls and United Kingdom is about 4472 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Great Falls to United Kingdom?

    The most popular route from Great Falls to United Kingdom is Great Falls - London Heathrow. You may also consider Great Falls - Edinburgh Turnhouse or Great Falls - Newcastle upon Tyne.

  • Can I find deals for flights from Great Falls to United Kingdom that include hotel bookings?

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

  • How can I find direct flights from Great Falls to United Kingdom?

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

  • Can I find deals for business class flights from Great Falls to United Kingdom?

    Yes. Cheapflights offers flight deals from Great Falls to United Kingdom 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 2 airlines flying from Great Falls to United Kingdom

Discover the top 2 airlines that operate flights from Great Falls to United Kingdom. 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$645Average$951FlexibilityNo cancel feeOn-time69%
DeltaCheapest$764Average$945FlexibilityNo cancel feeOn-timeN/A

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