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$333+ Cheap flights from Great Falls (GTF) to the United Kingdom

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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — LHR
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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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 julio 30, 2025.

Round-trip from

$578
(Delta)

One-way from

$333
(American Airlines)
From Great Falls to United Kingdom
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One-way flight from Great Falls to United Kingdom
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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 julio 30, 2025.

This Delta deal was found by Cheapflights users on 7/30. 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.
lun. 9/291:05 pmGTF - LHR
1 stop13h 45mDelta
mié. 10/86:15 amLHR - GTF
2 stops18h 14mDelta
Deal found 7/30$578
This KLM deal was found by Cheapflights users on 7/30. 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.
lun. 9/291:05 pmGTF - LHR
1 stop13h 45mKLM
mié. 10/811:00 amLHR - GTF
1 stop19h 06mKLM
Deal found 7/30$585
This United Airlines deal was found by Cheapflights users on 7/29. 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.
mar. 9/302:31 pmGTF - LHR
2 stops32h 59mUnited Airlines
mié. 10/87:25 amLHR - GTF
2 stops20h 46mUnited Airlines
Deal found 7/29$631

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 julio 30, 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

lun. 9/29

1:05 pm-9:50 am

1 stop13h 45m

London Heathrow

mié. 10/8

6:15 am-5:29 pm

2 stops18h 14m

$578

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

lun. 9/29

1:05 pm-9:50 am

1 stop13h 45m

London Heathrow

mié. 10/8

11:00 am-11:06 pm

1 stop19h 06m

$585

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

mar. 9/30

2:31 pm-6:30 am

2 stops32h 59m

London Heathrow

mié. 10/8

7:25 am-9:11 pm

2 stops20h 46m

$631

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

dom. 9/14

4:29 pm-1:40 pm

1 stop14h 11m

$333

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

dom. 9/14

6:11 pm-4:15 pm

2 stops15h 04m

$378

Great FallsEdinburgh

GTF - EDI

GTFEDI

Great Falls

lun. 12/1

2:30 pm-10:30 am

2 stops37h 00m

$486

Great FallsEdinburgh

GTF - EDI

GTFEDI

Great Falls

lun. 12/15

10:25 pm-10:55 am

3 stops53h 30m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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 julio 30, 2025.
Read through reviews of airlines operating flights from Great Falls to the United Kingdom, such as Delta, KLM, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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.

  • What is the cheapest month to book a flight from Great Falls to United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Great Falls to United Kingdom (average of $661). Flying from Great Falls to United Kingdom in June is currently the most expensive (average of $1,097). 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

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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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$645Average$941FlexibilityNo cancel feeOn-time69%
DeltaCheapest$764Average$971FlexibilityNo cancel feeOn-timeN/A

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