What is the cheapest airline that flies from Great Falls to United Kingdom?

United Airlines is the most popular carrier operating from Great Falls to United Kingdom

When did momondo last update prices for flights from Great Falls Airport to United Kingdom?

Prices for flights from Great Falls Airport to United Kingdom were last updated today.

How many operators does momondo search for flights from Great Falls Airport to United Kingdom?

There is 1 operator available for flights from Great Falls Airport to United Kingdom as of March 2026.

How old do you have to be to fly from Great Falls Airport to United Kingdom?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Great Falls Airport to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$335 Cheap Flights from Great Falls to the United Kingdom in 2026

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Find the cheapest flights from Great Falls to the United Kingdom

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:15 am - 10:35 am

GTF

EDI

21h 20m

2 stops

9:40 am - 9:28 pm

EDI

GTF

18h 48m

2 stops

$877United Airlines

Sun, Sep 6 - Wed, Sep 9

6:15 am - 12:25 pm

GTF

LHR

23h 10m

1 stop

9:00 am - 1:34 pm

LHR

GTF

35h 34m

2 stops

$938United Airlines

Tue, May 12 - Tue, May 19

6:15 am - 10:00 am

GTF

LHR

20h 45m

2 stops

9:00 am - 1:34 pm

LHR

GTF

35h 34m

2 stops

$941United Airlines

Tue, May 12 - Tue, May 19

2:30 pm - 12:25 pm

GTF

LHR

14h 55m

1 stop

2:05 pm - 9:15 pm

LHR

GTF

38h 10m

2 stops

$946United Airlines

Mon, Apr 27 - Thu, Oct 15

2:30 pm - 12:25 pm

GTF

LHR

14h 55m

1 stop

2:05 pm - 9:15 pm

LHR

GTF

38h 10m

2 stops

$947United Airlines

Mon, Apr 27 - Thu, Oct 15

6:15 am - 10:00 am

GTF

LHR

20h 45m

2 stops

2:05 pm - 9:15 pm

LHR

GTF

38h 10m

2 stops

$949United Airlines

Mon, Apr 27 - Thu, Oct 15

2:30 pm - 6:30 am

GTF

LHR

33h 00m

2 stops

2:05 pm - 9:15 pm

LHR

GTF

38h 10m

2 stops

$950United Airlines

Mon, Apr 27 - Thu, Oct 15

6:15 am - 12:35 pm

GTF

LHR

23h 20m

1 stop

5:40 pm - 9:18 pm

LHR

GTF

34h 38m

2 stops

$951United Airlines

Sun, Apr 26 - Wed, May 6

6:15 pm - 6:45 am

GTF

LHR

29h 30m

1 stop

9:50 am - 4:13 pm

LHR

GTF

13h 23m

1 stop

$967Multiple Airlines

Mon, Apr 27 - Thu, Oct 15

1:07 pm - 6:25 pm

GTF

EDI

22h 18m

3 stops

8:10 pm - 12:27 pm

EDI

GTF

47h 17m

3 stops

$2,509Multiple Airlines

Sun, May 10 - Sun, May 17

United Airlines flights from Great Falls to United Kingdom

Our best United Airlines deals on Great Falls to United Kingdom flight tickets

United Airlines

Sep 6

GTF6:15 amGreat Falls

21h 20m

2 stops

EDI10:35 amEdinburgh Turnhouse

Sep 9

EDI9:40 amEdinburgh Turnhouse

18h 48m

2 stops

GTF9:28 pmGreat Falls

$877

United Airlines

May 12

GTF6:15 amGreat Falls

23h 10m

1 stop

LHR12:25 pmLondon Heathrow

May 19

LHR9:00 amLondon Heathrow

35h 34m

2 stops

GTF1:34 pmGreat Falls

$938

United Airlines

May 12

GTF6:15 amGreat Falls

20h 45m

2 stops

LHR10:00 amLondon Heathrow

May 19

LHR9:00 amLondon Heathrow

35h 34m

2 stops

GTF1:34 pmGreat Falls

$941

Delta flights from Great Falls to United Kingdom

Our best Delta deals on Great Falls to United Kingdom flight tickets

Delta

Apr 25

GTF6:20 pmGreat Falls

29h 50m

2 stops

LHR7:10 amLondon Heathrow

May 6

LHR6:30 amLondon Heathrow

22h 59m

2 stops

GTF10:29 pmGreat Falls

$1,008

Delta

Apr 27

GTF1:09 pmGreat Falls

17h 41m

2 stops

LHR1:50 pmLondon Heathrow

May 8

LHR6:30 amLondon Heathrow

18h 09m

2 stops

GTF5:39 pmGreat Falls

$1,012

Delta

Apr 26

GTF1:09 pmGreat Falls

17h 36m

2 stops

LHR1:45 pmLondon Heathrow

May 8

LHR6:15 amLondon Heathrow

18h 24m

2 stops

GTF5:39 pmGreat Falls

$1,015

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Great FallsEdinburgh

GTF - EDI

GTFEDI

Great Falls

Sun 9/6

6:15 am-10:35 am

2 stops21h 20m

Edinburgh Turnhouse

Wed 9/9

9:40 am-9:28 pm

2 stops18h 48m

$877

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 5/12

6:15 am-12:25 pm

1 stop23h 10m

London Heathrow

Tue 5/19

9:00 am-1:34 pm

2 stops35h 34m

$938

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Tue 5/12

6:15 am-10:00 am

2 stops20h 45m

London Heathrow

Tue 5/19

9:00 am-1:34 pm

2 stops35h 34m

$941

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 4/27

2:30 pm-12:25 pm

1 stop14h 55m

London Heathrow

Thu 10/15

2:05 pm-9:15 pm

2 stops38h 10m

$946

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 4/27

2:30 pm-12:25 pm

1 stop14h 55m

London Heathrow

Thu 10/15

2:05 pm-9:15 pm

2 stops38h 10m

$947

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 4/27

6:15 am-10:00 am

2 stops20h 45m

London Heathrow

Thu 10/15

2:05 pm-9:15 pm

2 stops38h 10m

$949

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 4/27

2:30 pm-6:30 am

2 stops33h 00m

London Heathrow

Thu 10/15

2:05 pm-9:15 pm

2 stops38h 10m

$950

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Sun 4/26

6:15 am-12:35 pm

1 stop23h 20m

London Heathrow

Wed 5/6

5:40 pm-9:18 pm

2 stops34h 38m

$951

Great FallsLondon

GTF - LHR

GTFLHR

Great Falls

Mon 4/27

6:15 pm-6:45 am

1 stop29h 30m

London Heathrow

Thu 10/15

9:50 am-4:13 pm

1 stop13h 23m

$967

Great FallsEdinburgh

GTF - EDI

GTFEDI

Great Falls

Sun 5/10

1:07 pm-6:25 pm

3 stops22h 18m

Edinburgh Turnhouse

Sun 5/17

8:10 pm-12:27 pm

3 stops47h 17m

$2,509

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Great Falls to United Kingdom

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Great Falls to United Kingdom flights?

You could potentially save up to 12% on your flight if you consider stops on a Great Falls to United Kingdom flight.

Cheap Great Falls to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to United Kingdom

Fastest flight time	18h 28m
Direct flights	None

The fastest flight from Great Falls to United Kingdom takes 18h 28m

There are no direct flights from Great Falls to United Kingdom. There are no popular flight routes from Great Falls to United Kingdom.

Search flight deals

When did momondo last update prices for flights from Great Falls Airport to United Kingdom?
Prices for flights from Great Falls Airport to United Kingdom were last updated today.
How many operators does momondo search for flights from Great Falls Airport to United Kingdom?
There is 1 operator available for flights from Great Falls Airport to United Kingdom as of March 2026.
How old do you have to be to fly from Great Falls Airport to United Kingdom?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Great Falls Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Great Falls to United Kingdom

Compare and see reviews for airlines that fly from Great Falls to United Kingdom with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $645	Free Cancellation	Rating 7.4 9,514 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to United Kingdom?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Great Falls.

Can I find flights from Great Falls to United Kingdom with flexible booking policies on momondo?

Flights from Great Falls to United Kingdom with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Great Falls to United Kingdom?

Once all potential Great Falls to United Kingdom flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Great Falls to United Kingdom right now. Can momondo alert me if prices change?

Price alerts on flights to United Kingdom from Great Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.