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.

£988 Cheap Flights from Guam to London Heathrow Airport in 2026

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Find the cheapest flights from Guam to London

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Recent return flight deals from Guam to London

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06:00 - 07:30

GUM

LHR

34h 30m

2 stops

16:50 - 04:20

LHR

GUM

50h 30m

2 stops

£1,001Multiple Airlines

Tue, 16 Jun - Fri, 3 Jul

04:40 - 18:40

GUM

LHR

47h 00m

2 stops

19:35 - 03:35

LHR

GUM

23h 00m

1 stop

£1,002Multiple Airlines

Thu, 16 Apr - Thu, 23 Apr

00:50 - 14:20

GUM

LHR

22h 30m

1 stop

16:35 - 03:35

LHR

GUM

26h 00m

1 stop

£1,185Multiple Airlines

Wed, 15 Apr - Thu, 23 Apr

04:40 - 20:00

GUM

LHR

48h 20m

2 stops

16:35 - 23:45

LHR

GUM

22h 10m

1 stop

£1,193Multiple Airlines

Tue, 16 Jun - Fri, 3 Jul

00:50 - 22:40

GUM

LHR

30h 50m

3 stops

13:30 - 23:45

LHR

GUM

25h 15m

2 stops

£1,287Multiple Airlines

Mon, 15 Jun - Fri, 3 Jul

03:00 - 17:10

GUM

LHR

23h 10m

2 stops

06:30 - 23:55

LHR

GUM

32h 25m

2 stops

£1,432Multiple Airlines

Wed, 15 Apr - Thu, 23 Apr

03:00 - 17:20

GUM

LHR

23h 20m

1 stop

19:35 - 23:55

LHR

GUM

19h 20m

1 stop

£1,492Korean Air

Mon, 15 Jun - Fri, 3 Jul

17:20 - 17:20

GUM

LHR

33h 00m

1 stop

19:35 - 15:35

LHR

GUM

35h 00m

1 stop

£1,494Korean Air

Tue, 16 Jun - Fri, 3 Jul

01:00 - 16:30

GUM

LHR

25h 30m

1 stop

19:35 - 15:35

LHR

GUM

35h 00m

1 stop

£3,733Korean Air

Thu, 26 Mar - Thu, 2 Apr

02:40 - 14:25

GUM

LHR

45h 45m

2 stops

16:35 - 03:35

LHR

GUM

26h 00m

1 stop

£3,989Multiple Airlines

Thu, 26 Mar - Thu, 2 Apr

Korean Air flights from Guam to London Heathrow Airport

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

Korean Air

15 Jun

GUM03:00Tamuning Guam Intl

23h 20m

1 stop

LHR17:20London Heathrow

3 Jul

LHR19:35London Heathrow

19h 20m

1 stop

GUM23:55Tamuning Guam Intl

£1,492

Korean Air

16 Jun

GUM17:20Tamuning Guam Intl

33h 00m

1 stop

LHR17:20London Heathrow

3 Jul

LHR19:35London Heathrow

35h 00m

1 stop

GUM15:35Tamuning Guam Intl

£1,494

Korean Air

26 Mar

GUM01:00Tamuning Guam Intl

25h 30m

1 stop

LHR16:30London Heathrow

2 Apr

LHR19:35London Heathrow

35h 00m

1 stop

GUM15:35Tamuning Guam Intl

£3,733

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

Tue 16/6

06:00-07:30

2 stops34h 30m

London Heathrow

Fri 3/7

16:50-04:20

2 stops50h 30m

£1,001

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 16/4

04:40-18:40

2 stops47h 00m

London Heathrow

Thu 23/4

19:35-03:35

1 stop23h 00m

£1,002

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Wed 15/4

00:50-14:20

1 stop22h 30m

London Heathrow

Thu 23/4

16:35-03:35

1 stop26h 00m

£1,185

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Tue 16/6

04:40-20:00

2 stops48h 20m

London Heathrow

Fri 3/7

16:35-23:45

1 stop22h 10m

£1,193

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 15/6

00:50-22:40

3 stops30h 50m

London Heathrow

Fri 3/7

13:30-23:45

2 stops25h 15m

£1,287

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Wed 15/4

03:00-17:10

2 stops23h 10m

London Heathrow

Thu 23/4

06:30-23:55

2 stops32h 25m

£1,432

Fastest return journey

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 15/6

03:00-17:20

1 stop23h 20m

London Heathrow

Fri 3/7

19:35-23:55

1 stop19h 20m

£1,492

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Tue 16/6

17:20-17:20

1 stop33h 00m

London Heathrow

Fri 3/7

19:35-15:35

1 stop35h 00m

£1,494

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 26/3

01:00-16:30

1 stop25h 30m

London Heathrow

Thu 2/4

19:35-15:35

1 stop35h 00m

£3,733

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 26/3

02:40-14:25

2 stops45h 45m

London Heathrow

Thu 2/4

16:35-03:35

1 stop26h 00m

£3,989

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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

Fastest flight time	33h 00m
Direct flights	None

The fastest flight from Guam to London Heathrow Airport takes 33h 00m

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.

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Northampton

Stratford-upon-Avon

Swindon

Southend-on-Sea

Canterbury

Ipswich

Ilford

Wembley

Poole

Guildford

Chelmsford

Hayes

Dover

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.