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$592+ 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — LHR
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find 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 October 28, 2025.

This Delta deal was found by Cheapflights users on 10/27. 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.
Sun 11/96:10 pmGTF - LHR
1 stop32h 50mDelta
Tue 11/256:20 amLHR - GTF
2 stops23h 10mDelta
Deal found 10/27$592
This Delta deal was found by Cheapflights users on 10/27. 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.
Mon 11/105:30 amGTF - LHR
1 stop21h 30mDelta
Wed 11/2611:45 amLHR - GTF
2 stops36h 45mDelta
Deal found 10/27$593
This Delta deal was found by Cheapflights users on 10/27. 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.
Tue 11/115:30 amGTF - LHR
3 stops20h 30mDelta
Tue 11/256:20 amLHR - GTF
2 stops18h 10mDelta
Deal found 10/27$596
This Delta deal was found by Cheapflights users on 10/27. 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.
Tue 11/116:10 pmGTF - LHR
2 stops29h 50mDelta
Wed 11/2611:45 amLHR - GTF
2 stops36h 45mDelta
Deal found 10/27$597
This Delta deal was found by Cheapflights users on 10/27. 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.
Mon 11/175:30 amGTF - LHR
3 stops20h 30mDelta
Wed 11/2612:20 pmLHR - GTF
2 stops36h 10mDelta
Deal found 10/27$604
This Delta deal was found by Cheapflights users on 10/27. 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.
Tue 11/115:30 amGTF - LHR
3 stops20h 30mDelta
Mon 11/245:35 pmLHR - GTF
2 stops30h 55mDelta
Deal found 10/27$609
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/112:30 pmGTF - LHR
2 stops33h 40mUnited Airlines
Thu 11/276:35 amLHR - GTF
2 stops37h 58mUnited Airlines
Deal found 10/27$619
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/122:30 pmGTF - LHR
2 stops25h 25mUnited Airlines
Wed 11/266:35 amLHR - GTF
2 stops37h 58mUnited Airlines
Deal found 10/27$626
This Delta deal was found by Cheapflights users on 10/27. 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.
Fri 11/141:12 pmGTF - LHR
1 stop13h 48mDelta
Tue 11/2510:45 amLHR - GTF
1 stop13h 45mDelta
Deal found 10/27$649
This Delta deal was found by Cheapflights users on 10/27. 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 11/136:10 pmGTF - LHR
1 stop32h 50mDelta
Tue 11/2510:45 amLHR - GTF
1 stop32h 47mDelta
Deal found 10/27$650
This Delta deal was found by Cheapflights users on 10/27. 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 11/131:12 pmGTF - LHR
2 stops23h 58mDelta
Thu 11/2710:45 amLHR - GTF
1 stop13h 45mDelta
Deal found 10/27$654

Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$592
(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 October 28, 2025.
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

Sun 11/16

6:10 pm-10:00 am

1 stop32h 50m

London Heathrow

Tue 11/25

6:20 am-10:30 pm

2 stops23h 10m

$592

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 11/17

6:10 pm-10:00 am

1 stop32h 50m

London Heathrow

Tue 11/25

6:20 am-5:30 pm

2 stops18h 10m

$592

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 11/11

1:12 pm-10:00 am

1 stop13h 48m

London Heathrow

Wed 11/26

8:25 pm-5:30 pm

2 stops28h 05m

$593

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Wed 11/12

1:12 pm-10:00 am

1 stop13h 48m

London Heathrow

Wed 11/26

5:50 pm-5:30 pm

2 stops30h 40m

$593

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 11/10

5:30 am-12:50 pm

2 stops24h 20m

London Heathrow

Tue 11/25

6:20 am-10:30 pm

2 stops23h 10m

$596

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sat 11/8

6:09 pm-6:20 am

2 stops29h 11m

London Heathrow

Wed 11/26

11:45 am-5:30 pm

2 stops36h 45m

$597

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 11/11

1:12 pm-10:00 am

1 stop13h 48m

London Heathrow

Tue 11/25

10:45 am-5:30 pm

1 stop13h 45m

$599

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 11/9

6:10 pm-10:00 am

1 stop32h 50m

London Heathrow

Wed 11/26

10:45 am-5:30 pm

1 stop13h 45m

$599

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 11/11

6:10 pm-10:00 am

1 stop32h 50m

London Heathrow

Wed 11/26

10:45 am-5:30 pm

1 stop13h 45m

$599

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 11/10

1:12 pm-10:00 am

1 stop13h 48m

London Heathrow

Thu 11/27

10:45 am-5:30 pm

1 stop13h 45m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 15 results
1
2

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 October 28, 2025.
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
7,994 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 $593. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$645Average$950FlexibilityNo cancel feeOn-time69%
DeltaCheapest$764Average$925FlexibilityNo cancel feeOn-timeN/A

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