What are the cheapest airlines flying from Great Falls to London round-trip?

Flying on United Airlines is currently your cheapest option to London, with prices starting at $787. Another option worth looking into is KLM, starting at $810 round trip.

What is the cheapest month to book a flight from Great Falls to London?

Currently, November is the cheapest month in which you can book a flight from Great Falls to London (average of $661). Flying from Great Falls to London in June is currently the most expensive (average of $1,110). 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 Great Falls to London?

Travelers seeking maximum savings on their Great Falls to London flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Great Falls to London?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 103% on the overall cost on flights from Great Falls to London.

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

Unlike in the morning, when flights are generally more expensive, you can save up to 5% on flights from Great Falls to London by exploring options for tickets at noon.

Most accurate provider : When it comes to deals on Great Falls-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-London flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Great Falls-London 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 Great Falls-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Great Falls to London?

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

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

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

How can I find direct flights from Great Falls to London?

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

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

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

$787+ Flights from Great Falls to London

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Cheap flight deals from Great Falls to London

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 2 stars
Round-trip from	$787 (United Airlines)

Provider with most accurate pricing for Great Falls-London (LON) flight deals.

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Provider most trusted by Cheapflights users for Great Falls-London (LON) flights.

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From Great Falls to London (LON)

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Find flight deals from Great Falls to London

Cheapest flights from Great Falls to London
Explore the most affordable flight options available from Great Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Sat 9/137:00 amGTF - LHR

2 stops20h 00mUnited Airlines

Sat 9/202:05 pmLHR - GTF

2 stops37h 55mUnited Airlines

Deal found 4/15

$787

Sat 9/1312:40 pmGTF - LHR

1 stop14h 10mKLM

Sat 9/2010:55 amLHR - GTF

1 stop13h 47mKLM

Deal found 4/15

$810

Best flights from Great Falls to London
Discover carefully curated flight deals from Great Falls to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2025.

Sat 9/132:15 pmGTF - LHR

1 stop15h 05mUnited Airlines

Sat 9/202:05 pmLHR - GTF

2 stops37h 55mUnited Airlines

Deal found 4/15

$787

Sat 9/1312:40 pmGTF - LHR

1 stop14h 10mKLM

Sat 9/2010:55 amLHR - GTF

1 stop13h 47mKLM

Deal found 4/15

$810

Last-minute flights from Great Falls to London
Discover last-minute flight deals from Great Falls to London. Data last updated April 17, 2025 and is based on user searches.

Sat 5/312:26 pmGTF - LHR

2 stops36h 34mUnited Airlines

Sat 6/710:50 amLHR - GTF

2 stops41h 20mUnited Airlines

Deal found 4/15

$1,096

Sat 5/3111:45 amGTF - LHR

1 stop15h 05mKLM

Sat 6/711:45 amLHR - GTF

2 stops15h 47mKLM

Deal found 4/15

$1,157

Cheapflights Fare Finder

Use the filters below to find and compare flights from Great Falls to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sat 9/13

7:00 am-10:00 am

2 stops20h 00m

London Heathrow

Sat 9/20

2:05 pm-9:00 pm

2 stops37h 55m

$787

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sat 9/13

12:40 pm-9:50 am

1 stop14h 10m

London Heathrow

Sat 9/20

10:55 am-5:42 pm

1 stop13h 47m

$810

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Most accurate provider: When it comes to deals on Great Falls-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-London flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Great Falls-London 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 Great Falls-London 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 Great Falls to London

Have a flexible travel schedule? Discover the best time to fly to London 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 London

Rainfall in London by month

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

If weather is an important factor for your trip to London, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing London

KLM

7.8

Good

1,327 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

KLM

7.8

Good

1,327 reviews

KLM

7.8

Good

1,327 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

United Airlines

7.4

Good

8,667 reviews

KLM

7.8

Good

1,327 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Mar 2025

LBA - AMS

Related info for your journey

What airport do you fly from for flights from Great Falls to London?
Great Falls (GTF), located 3.5 mi from the city center, is the airport you fly out of when you book flights from Great Falls to London. 1 airline have flights from Great Falls to London on a regular basis. Booking flights from Great Falls to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.
What are the cheapest airlines flying from Great Falls to London round-trip?
Flying on United Airlines is currently your cheapest option to London, with prices starting at $787. Another option worth looking into is KLM, starting at $810 round trip.
Can I find deals for flights from Great Falls to London that include hotel bookings?
Yes. In addition to deals on Great Falls to London flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Great Falls to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Great Falls to London.
Can I find deals for business class flights from Great Falls to London?
Yes. Cheapflights offers flight deals from Great Falls to London 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 London?
Currently, November is the cheapest month in which you can book a flight from Great Falls to London (average of $661). Flying from Great Falls to London in June is currently the most expensive (average of $1,110). 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.

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Top airline flying from Great Falls to London

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$669	Average$743	FlexibilityNo cancel fee	On-time69%

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$787+ Cheap flights from Great Falls (GTF) to London (LON)

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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Great Falls to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Great Falls to London

Most accurate provider

Most trusted provider

Round-trip from

Find flight deals from Great Falls to London

Cheapest flights from Great Falls to LondonExplore the most affordable flight options available from Great Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Explore the most affordable flight options available from Great Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Great Falls to London that are best for you.

Best time to book a flight from Great Falls to London

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

Cheapflights Insights

Everything you need to know about your flight from Great Falls to London

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Related info for your journey

Find useful and relevant information for your journey from Great Falls to London. 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 London?

What are the cheapest airlines flying from Great Falls to London round-trip?

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

How can I find direct flights from Great Falls to London?

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

What is the cheapest month to book a flight from Great Falls to London?

Traveling to a place near Great Falls?

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Alternative routes for Great Falls to London

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Top airline flying from Great Falls to London

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Book with Flexibility

Travel Smart

Cheapest flights from Great Falls to London
Explore the most affordable flight options available from Great Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.