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.

£444 Cheap Flights from Guam to London Heathrow Airport in 2025

1 adult

0 bags

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Find the cheapest flights from Guam to London

Round-trip

One-way

Recent return flight deals from Guam to London

03:05 - 20:30GUM-LHR

26h 25m2 stops

07:45 - 01:15LHR-GUM

32h 30m3 stops

£958

Find Deal

Thu, 18 Sep - Sun, 28 Sep

03:05 - 20:30GUM-LHR

26h 25m2 stops

10:15 - 23:10LHR-GUM

27h 55m2 stops

£1,027

Find Deal

Thu, 18 Sep - Sun, 28 Sep

03:05 - 20:30GUM-LHR

26h 25m2 stops

19:35 - 01:15LHR-GUM

20h 40m1 stop

£1,078

Find Deal

Thu, 18 Sep - Sun, 28 Sep

15:55 - 09:20GUM-LHR

26h 25m2 stops

10:15 - 23:10LHR-GUM

27h 55m2 stops

£1,116

Find Deal

Fri, 19 Sep - Sun, 28 Sep

15:55 - 09:20GUM-LHR

26h 25m2 stops

19:35 - 01:15LHR-GUM

20h 40m1 stop

£1,177

Find Deal

Fri, 19 Sep - Sun, 28 Sep

01:55 - 17:20GUM-LHR

24h 25m1 stop

19:35 - 22:45LHR-GUM

18h 10m1 stop

£1,747Korean Air

Find Deal

Thu, 18 Sep - Sun, 28 Sep

17:00 - 17:20GUM-LHR

33h 20m1 stop

19:35 - 00:10LHR-GUM

19h 35m1 stop

£2,047Korean Air

Find Deal

Fri, 19 Sep - Sun, 28 Sep

Korean Air flights from Guam to London Heathrow Airport

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

Korean Air

18 Sept

GUM01:55Tamuning Guam Intl

24h 25m

1 stop

LHR17:20London Heathrow

28 Sept

LHR19:35London Heathrow

18h 10m

1 stop

GUM22:45Tamuning Guam Intl

£1,747

Find similar

Korean Air

19 Sept

GUM17:00Tamuning Guam Intl

33h 20m

1 stop

LHR17:20London Heathrow

28 Sept

LHR19:35London Heathrow

19h 35m

1 stop

GUM00:10Tamuning Guam Intl

£2,047

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

Thu 18/9

03:05-20:30

2 stops26h 25m

London Heathrow

Sun 28/9

07:45-01:15

3 stops32h 30m

£958

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 18/9

03:05-20:30

2 stops26h 25m

London Heathrow

Sun 28/9

10:15-23:10

2 stops27h 55m

£1,027

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 18/9

03:05-20:30

2 stops26h 25m

London Heathrow

Sun 28/9

19:35-01:15

1 stop20h 40m

£1,078

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Fri 19/9

15:55-09:20

2 stops26h 25m

London Heathrow

Sun 28/9

10:15-23:10

2 stops27h 55m

£1,116

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Fri 19/9

15:55-09:20

2 stops26h 25m

London Heathrow

Sun 28/9

19:35-01:15

1 stop20h 40m

£1,177

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 18/9

01:55-17:20

1 stop24h 25m

London Heathrow

Sun 28/9

19:35-22:45

1 stop18h 10m

£1,747

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Fri 19/9

17:00-17:20

1 stop33h 20m

London Heathrow

Sun 28/9

19:35-00:10

1 stop19h 35m

£2,047

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 18/9

03:05-20:30

2 stops26h 25m

£444

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 18/9

03:40-21:20

3 stops26h 40m

£475

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 18/9

03:40-17:20

1 stop22h 40m

£681

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from Guam to London Heathrow Airport

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

What is the cheapest airline that flies from Guam to London Heathrow?

Korean Air is the most popular carrier operating from Guam to London Heathrow

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

Best price found	£444
Fastest flight time	22h 40m
Direct flights	None

The best one-way flight to London Heathrow Airport from Guam in the past 72 hours is £444. The best return flight deal from Guam to London Heathrow Airport found on momondo in the last 72 hours is £958.

The fastest flight from Guam to London Heathrow Airport takes 22h 40m

There are no direct flights from Guam to London Heathrow Airport. Popular non-direct route for this connection is Tamuning Guam Intl Airport - 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.

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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.