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.

£405 Cheap Flights from Guam to London Heathrow Airport in 2026

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Find the cheapest flights from Guam to London

Round-trip

One-way

Last minute

Recent return flight deals from Guam to London

Enter your travel dates to find the best prices.

00:50 - 14:20

GUM

LHR

22h 30m

1 stop

16:35 - 03:35

LHR

GUM

26h 00m

1 stop

£1,074Multiple Airlines

Wed, 3 Jun - Fri, 19 Jun

17:20 - 18:40

GUM

LHR

34h 20m

2 stops

19:35 - 01:00

LHR

GUM

20h 25m

1 stop

£1,106Multiple Airlines

Mon, 8 Jun - Mon, 15 Jun

00:50 - 14:20

GUM

LHR

22h 30m

1 stop

16:35 - 01:00

LHR

GUM

23h 25m

1 stop

£1,155Multiple Airlines

Sun, 7 Jun - Mon, 15 Jun

00:50 - 09:10

GUM

LHR

41h 20m

3 stops

06:00 - 04:20

LHR

GUM

37h 20m

3 stops

£1,178Multiple Airlines

Mon, 18 May - Tue, 26 May

00:50 - 20:25

GUM

LHR

28h 35m

2 stops

16:35 - 23:45

LHR

GUM

22h 10m

1 stop

£1,217Multiple Airlines

Wed, 3 Jun - Fri, 19 Jun

06:00 - 16:10

GUM

LHR

43h 10m

2 stops

19:50 - 04:20

LHR

GUM

47h 30m

2 stops

£1,221Multiple Airlines

Thu, 4 Jun - Fri, 19 Jun

06:00 - 07:05

GUM

LHR

34h 05m

2 stops

16:50 - 04:20

LHR

GUM

50h 30m

2 stops

£1,250Multiple Airlines

Thu, 4 Jun - Fri, 19 Jun

06:00 - 12:25

GUM

LHR

39h 25m

2 stops

16:50 - 04:20

LHR

GUM

50h 30m

2 stops

£1,275Multiple Airlines

Mon, 8 Jun - Mon, 15 Jun

06:00 - 09:10

GUM

LHR

36h 10m

3 stops

07:30 - 04:20

LHR

GUM

59h 50m

3 stops

£1,303Multiple Airlines

Mon, 8 Jun - Mon, 15 Jun

00:50 - 22:00

GUM

LHR

30h 10m

2 stops

06:00 - 04:20

LHR

GUM

37h 20m

3 stops

£1,311Multiple Airlines

Mon, 18 May - Tue, 26 May

Korean Air flights from Guam to London Heathrow Airport

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

Korean Air

4 Jun

GUM17:20Tamuning Guam Intl

33h 00m

1 stop

LHR17:20London Heathrow

19 Jun

LHR19:35London Heathrow

35h 00m

1 stop

GUM15:35Tamuning Guam Intl

£1,481

Korean Air

19 May

GUM17:20Tamuning Guam Intl

34h 30m

1 stop

LHR18:50London Heathrow

26 May

LHR13:25London Heathrow

41h 10m

1 stop

GUM15:35Tamuning Guam Intl

£1,555

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

Cheapest return flight

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Wed 3/6

00:50-14:20

1 stop22h 30m

London Heathrow

Fri 19/6

16:35-03:35

1 stop26h 00m

£1,074

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 8/6

17:20-18:40

2 stops34h 20m

London Heathrow

Mon 15/6

19:35-01:00

1 stop20h 25m

£1,106

Fastest return journey

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 7/6

00:50-14:20

1 stop22h 30m

London Heathrow

Mon 15/6

16:35-01:00

1 stop23h 25m

£1,155

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 18/5

00:50-09:10

3 stops41h 20m

London Heathrow

Tue 26/5

06:00-04:20

3 stops37h 20m

£1,178

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Wed 3/6

00:50-20:25

2 stops28h 35m

London Heathrow

Fri 19/6

16:35-23:45

1 stop22h 10m

£1,217

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 4/6

06:00-16:10

2 stops43h 10m

London Heathrow

Fri 19/6

19:50-04:20

2 stops47h 30m

£1,221

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 4/6

06:00-07:05

2 stops34h 05m

London Heathrow

Fri 19/6

16:50-04:20

2 stops50h 30m

£1,250

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 8/6

06:00-12:25

2 stops39h 25m

London Heathrow

Mon 15/6

16:50-04:20

2 stops50h 30m

£1,275

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 8/6

06:00-09:10

3 stops36h 10m

London Heathrow

Mon 15/6

07:30-04:20

3 stops59h 50m

£1,303

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 18/5

00:50-22:00

2 stops30h 10m

London Heathrow

Tue 26/5

06:00-04:20

3 stops37h 20m

£1,311

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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

Fastest flight time	34h 05m
Direct flights	None

The fastest flight from Guam to London Heathrow Airport takes 34h 05m

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

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Frequently asked questions about flying from Guam to London Heathrow Airport

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.

Frequently asked questions about flying from Guam to London Heathrow Airport

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

Stratford-upon-Avon

Slough

Maidstone

Wembley

Northampton

Swindon

Southend-on-Sea

Ipswich

Canterbury

Ilford

Guildford

Poole

Hayes

Dover

Chelmsford

Folkestone

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.