How do I get Price Alerts for flights from Guam to London Heathrow Airport?

You can take advantage of momondo’s Price Alerts by first searching for your flights to Guam from London Heathrow Airport . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How can I save money on flights from Guam to London Heathrow Airport with momondo?

By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

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 Guam to London Heathrow Airport?

Prices for flights from Guam to London Heathrow Airport are updated daily.

How old do you have to be to fly from Guam to London Heathrow Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Guam to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£499 Cheap Flights from Guam to London Heathrow Airport in 2025/26

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Recent return flight deals from Guam to London

Enter your travel dates to find the best prices.

00:20 - 18:35GUM-LHR

28h 15m2 stops

17:40 - 01:10LHR-GUM

21h 30m2 stops

£830Multiple Airlines

Find Deal

Sat, 20 Dec - Mon, 12 Jan

16:10 - 17:30GUM-LHR

35h 20m3 stops

17:40 - 01:10LHR-GUM

21h 30m2 stops

£996Multiple Airlines

Find Deal

Sun, 21 Dec - Mon, 12 Jan

16:10 - 12:05GUM-LHR

29h 55m2 stops

17:40 - 01:10LHR-GUM

21h 30m2 stops

£1,008Multiple Airlines

Find Deal

Sun, 21 Dec - Mon, 12 Jan

00:20 - 15:55GUM-LHR

49h 35m2 stops

18:50 - 01:10LHR-GUM

20h 20m1 stop

£1,014Multiple Airlines

Find Deal

Sat, 20 Dec - Mon, 12 Jan

16:10 - 15:55GUM-LHR

57h 45m2 stops

18:50 - 01:10LHR-GUM

20h 20m1 stop

£1,069Multiple Airlines

Find Deal

Sun, 21 Dec - Mon, 12 Jan

00:20 - 18:05GUM-LHR

27h 45m1 stop

18:50 - 01:10LHR-GUM

20h 20m1 stop

£1,381Multiple Airlines

Find Deal

Sat, 20 Dec - Mon, 12 Jan

16:10 - 16:30GUM-LHR

34h 20m1 stop

18:50 - 01:10LHR-GUM

20h 20m1 stop

£1,413Multiple Airlines

Find Deal

Sun, 21 Dec - Mon, 12 Jan

01:00 - 16:30GUM-LHR

25h 30m1 stop

18:50 - 23:05LHR-GUM

18h 15m1 stop

£1,506Korean Air

Find Deal

Thu, 12 Mar - Sun, 15 Mar

16:50 - 16:30GUM-LHR

33h 40m1 stop

18:50 - 14:35LHR-GUM

33h 45m1 stop

£1,772Korean Air

Find Deal

Sun, 21 Dec - Mon, 12 Jan

16:35 - 15:25GUM-LHR

32h 50m2 stops

21:25 - 14:35LHR-GUM

31h 10m2 stops

£5,314Malaysia Airlines

Find Deal

Fri, 13 Mar - Sun, 15 Mar

Korean Air flights from Guam to London Heathrow Airport

Our best Korean Air deals on Guam to London Heathrow Airport flight tickets

Korean Air

12 Mar

GUM01:00Tamuning Guam Intl

25h 30m

1 stop

LHR16:30London Heathrow

15 Mar

LHR18:50London Heathrow

18h 15m

1 stop

GUM23:05Tamuning Guam Intl

£1,506

Find similar

Korean Air

21 Dec

GUM16:50Tamuning Guam Intl

33h 40m

1 stop

LHR16:30London Heathrow

12 Jan

LHR18:50London Heathrow

33h 45m

1 stop

GUM14:35Tamuning Guam Intl

£1,772

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Guam to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sat 20/12

00:20-18:35

2 stops28h 15m

London Heathrow

Mon 12/1

17:40-01:10

2 stops21h 30m

£830

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 21/12

16:10-17:30

3 stops35h 20m

London Heathrow

Mon 12/1

17:40-01:10

2 stops21h 30m

£996

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 21/12

16:10-12:05

2 stops29h 55m

London Heathrow

Mon 12/1

17:40-01:10

2 stops21h 30m

£1,008

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sat 20/12

00:20-15:55

2 stops49h 35m

London Heathrow

Mon 12/1

18:50-01:10

1 stop20h 20m

£1,014

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 21/12

16:10-15:55

2 stops57h 45m

London Heathrow

Mon 12/1

18:50-01:10

1 stop20h 20m

£1,069

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sat 20/12

00:20-18:05

1 stop27h 45m

London Heathrow

Mon 12/1

18:50-01:10

1 stop20h 20m

£1,381

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 21/12

16:10-16:30

1 stop34h 20m

London Heathrow

Mon 12/1

18:50-01:10

1 stop20h 20m

£1,413

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 12/3

01:00-16:30

1 stop25h 30m

London Heathrow

Sun 15/3

18:50-23:05

1 stop18h 15m

£1,506

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 21/12

16:50-16:30

1 stop33h 40m

London Heathrow

Mon 12/1

18:50-14:35

1 stop33h 45m

£1,772

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Fri 13/3

16:35-15:25

2 stops32h 50m

London Heathrow

Sun 15/3

21:25-14:35

2 stops31h 10m

£5,314

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

Cheap Guam to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Guam to London Heathrow Airport

Direct flights	None

There are no direct flights from Guam to London Heathrow Airport. There are no popular flight routes from Guam to London Heathrow Airport.

Search flight deals

When did momondo last update prices for flights from Guam to London Heathrow Airport?
Prices for flights from Guam to London Heathrow Airport are updated daily.
How old do you have to be to fly from Guam to London Heathrow Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Guam to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

How do I get Price Alerts for flights from Guam to London Heathrow Airport?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Guam from London Heathrow Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Guam to London Heathrow Airport with momondo?
By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
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.

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Northampton

Swindon

Canterbury

Stratford-upon-Avon

Southend-on-Sea

Ipswich

Ilford

Poole

Guildford

Swanage

Colchester

Dover

Hayes

Chelmsford

Why use momondo?

Why should I use momondo to find a flight deal from Guam to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Guam to London. momondo saves you time and could save you money on your trip.

Can I find flights from Guam to London with flexible booking policies on momondo?

Flights from Guam to London 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 Guam to London?

Once all potential Guam to London 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 Guam to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Guam to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.