How do I get Price Alerts for flights from Great Falls to United Kingdom?

Price Alerts will notify you by email when the price for flights to United Kingdom from Great Falls decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How can I save money on flights from Great Falls to United Kingdom with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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 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.

$774 Cheap Flights from Great Falls to the United Kingdom in 2026/27

Find the cheapest flights from Great Falls to the United Kingdom

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 5:05 pmGTF Great Falls-LHR London Heathrow

27h 35m2 stops Denver Intl Munich Franz Josef Strauss

11:10 am - 9:34 pmLHR London Heathrow-GTF Great Falls

41h 24m2 stops Toronto Pearson Intl Denver Intl

$774United Airlines

Mon, Mar 1 - Wed, Mar 3

6:30 am - 10:50 amGTF Great Falls-LHR London Heathrow

21h 20m2 stops Denver Intl Washington, D.C. Dulles Intl

7:30 am - 1:29 pmLHR London Heathrow-GTF Great Falls

36h 59m2 stops Frankfurt am Main Denver Intl

$779United Airlines

Mon, Mar 1 - Wed, Mar 3

2:25 pm - 9:40 amGTF Great Falls-LHR London Heathrow

12h 15m1 stop Denver Intl

7:30 am - 9:50 pmLHR London Heathrow-GTF Great Falls

21h 20m2 stops Frankfurt am Main Denver Intl

$842United Airlines

Mon, Mar 1 - Wed, Mar 3

2:25 pm - 6:30 amGTF Great Falls-LHR London Heathrow

57h 05m2 stops Denver Intl Toronto Pearson Intl

7:30 am - 1:29 pmLHR London Heathrow-GTF Great Falls

36h 59m2 stops Frankfurt am Main Denver Intl

$907United Airlines

Fri, Mar 5 - Tue, Mar 9

2:25 pm - 6:30 amGTF Great Falls-LHR London Heathrow

57h 05m2 stops Denver Intl Toronto Pearson Intl

11:35 am - 1:29 pmLHR London Heathrow-GTF Great Falls

32h 54m1 stop Denver Intl

$928United Airlines

Fri, Mar 5 - Tue, Mar 9

2:25 pm - 9:40 amGTF Great Falls-LHR London Heathrow

12h 15m1 stop Denver Intl

11:35 am - 9:50 pmLHR London Heathrow-GTF Great Falls

17h 15m1 stop Denver Intl

$930United Airlines

Mon, Mar 1 - Wed, Mar 3

2:42 pm - 9:40 amGTF Great Falls-LHR London Heathrow

11h 58m1 stop Denver Intl

11:35 am - 9:54 pmLHR London Heathrow-GTF Great Falls

17h 19m1 stop Denver Intl

$931United Airlines

Mon, Mar 1 - Wed, Mar 3

4:55 pm - 5:35 pmGTF Great Falls-EDI Edinburgh Turnhouse

17h 40m2 stops Seattle/Tacoma Intl London Heathrow

11:25 am - 4:13 pmEDI Edinburgh Turnhouse-GTF Great Falls

35h 48m2 stops New York John F Kennedy Intl Seattle/Tacoma Intl

$932Multiple Airlines

Mon, Apr 5 - Mon, Apr 19

6:30 am - 7:55 amGTF Great Falls-EDI Edinburgh Turnhouse

18h 25m2 stops Denver Intl Newark

9:25 am - 9:34 pmEDI Edinburgh Turnhouse-GTF Great Falls

18h 09m2 stops Newark Denver Intl

$934United Airlines

Mon, Mar 1 - Mon, Mar 15

4:55 pm - 10:05 amGTF Great Falls-EDI Edinburgh Turnhouse

34h 10m3 stops Seattle/Tacoma Intl Dallas/Fort Worth London Heathrow

1:05 pm - 4:13 pmEDI Edinburgh Turnhouse-GTF Great Falls

33h 08m3 stops London Heathrow Chicago O'Hare Intl Seattle/Tacoma Intl

$937Multiple Airlines

Mon, Mar 1 - Mon, Mar 15

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United Airlines flights from Great Falls to United Kingdom

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

United Airlines

Mar 1

GTF6:30 amGreat Falls

27h 35m

2 stops

LHR5:05 pmLondon Heathrow

Mar 3

LHR11:10 amLondon Heathrow

41h 24m

2 stops

GTF9:34 pmGreat Falls

$774

United Airlines

Mar 1

GTF6:30 amGreat Falls

21h 20m

2 stops

LHR10:50 amLondon Heathrow

Mar 3

LHR7:30 amLondon Heathrow

36h 59m

2 stops

GTF1:29 pmGreat Falls

$779

United Airlines

Mar 1

GTF2:25 pmGreat Falls

12h 15m

1 stop

LHR9:40 amLondon Heathrow

Mar 3

LHR7:30 amLondon Heathrow

21h 20m

2 stops

GTF9:50 pmGreat Falls

$842

Delta flights from Great Falls to United Kingdom

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

Delta

Dec 7

GTF1:19 pmGreat Falls

13h 41m

1 stop

LHR10:00 amLondon Heathrow

Dec 14

LHR8:55 amLondon Heathrow

44h 34m

2 stops

GTF10:29 pmGreat Falls

$978

Delta

Dec 7

GTF1:19 pmGreat Falls

20h 11m

2 stops

LHR4:30 pmLondon Heathrow

Dec 14

LHR11:50 amLondon Heathrow

17h 39m

2 stops

GTF10:29 pmGreat Falls

$1,043

Delta

Nov 4

GTF1:18 pmGreat Falls

13h 42m

1 stop

LHR10:00 amLondon Heathrow

Dec 12

LHR10:45 amLondon Heathrow

13h 54m

1 stop

GTF5:39 pmGreat Falls

$1,089

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

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 3/1

6:30 am-5:05 pm

2 stops27h 35m

London Heathrow

Wed 3/3

11:10 am-9:34 pm

2 stops41h 24m

$774

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 3/1

6:30 am-10:50 am

2 stops21h 20m

London Heathrow

Wed 3/3

7:30 am-1:29 pm

2 stops36h 59m

$779

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 3/1

2:25 pm-9:40 am

1 stop12h 15m

London Heathrow

Wed 3/3

7:30 am-9:50 pm

2 stops21h 20m

$842

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Fri 3/5

2:25 pm-6:30 am

2 stops57h 05m

London Heathrow

Tue 3/9

7:30 am-1:29 pm

2 stops36h 59m

$907

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Fri 3/5

2:25 pm-6:30 am

2 stops57h 05m

London Heathrow

Tue 3/9

11:35 am-1:29 pm

1 stop32h 54m

$928

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 3/1

2:25 pm-9:40 am

1 stop12h 15m

London Heathrow

Wed 3/3

11:35 am-9:50 pm

1 stop17h 15m

$930

Quickest round-trip

Great FallsLondon

GTF Great Falls - LHR London Heathrow

GTFLHR

Great Falls

Mon 3/1

2:42 pm-9:40 am

1 stop11h 58m

London Heathrow

Wed 3/3

11:35 am-9:54 pm

1 stop17h 19m

$931

Great FallsEdinburgh

GTF Great Falls - EDI Edinburgh Turnhouse

GTFEDI

Great Falls

Mon 4/5

4:55 pm-5:35 pm

2 stops17h 40m

Edinburgh Turnhouse

Mon 4/19

11:25 am-4:13 pm

2 stops35h 48m

$932

Great FallsEdinburgh

GTF Great Falls - EDI Edinburgh Turnhouse

GTFEDI

Great Falls

Mon 3/1

6:30 am-7:55 am

2 stops18h 25m

Edinburgh Turnhouse

Mon 3/15

9:25 am-9:34 pm

2 stops18h 09m

$934

Great FallsEdinburgh

GTF Great Falls - EDI Edinburgh Turnhouse

GTFEDI

Great Falls

Mon 3/1

4:55 pm-10:05 am

3 stops34h 10m

Edinburgh Turnhouse

Mon 3/15

1:05 pm-4:13 pm

3 stops33h 08m

$937

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Best Price Found	$774
Fastest flight time	13h 41m
Direct flights	None

The best flight deal from Great Falls to United Kingdom found on momondo in the last 72 hours is $774

The fastest flight from Great Falls to United Kingdom takes 13h 41m

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

Frequently asked questions about flying from Great Falls to the 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 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.

Frequently asked questions about flying from Great Falls to the United Kingdom

How do I get Price Alerts for flights from Great Falls to United Kingdom?
Price Alerts will notify you by email when the price for flights to United Kingdom from Great Falls decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Great Falls to United Kingdom with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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.