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Cheap flights from London to Guam from £519

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Guam departing on 20/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Korean Air Logo
18:50 - 23:05
LHR
-
GUM
18h 15m
1 stop
Korean Air Logo
16:50 - 16:30
GUM
-
LHR
33h 40m
1 stop
£1,093Korean Air
Mon, 2 Mar - Fri, 20 Mar
Korean Air Logo
18:50 - 14:35
LHR
-
GUM
33h 45m
1 stop
Korean Air Logo
16:50 - 16:30
GUM
-
LHR
33h 40m
1 stop
£1,094Korean Air
Mon, 2 Mar - Fri, 20 Mar
Korean Air Logo
18:50 - 23:05
LHR
-
GUM
18h 15m
1 stop
Korean Air Logo
16:50 - 16:30
GUM
-
LHR
33h 40m
1 stop
£1,138Korean Air
Tue, 24 Feb - Sat, 28 Feb
Korean Air Logo
18:50 - 23:05
LHR
-
GUM
18h 15m
1 stop
Korean Air Logo
16:50 - 16:30
GUM
-
LHR
33h 40m
1 stop
£1,197Korean Air
Fri, 13 Mar - Tue, 17 Mar
Korean Air Logo
18:50 - 14:35
LHR
-
GUM
33h 45m
1 stop
Korean Air Logo
01:00 - 16:30
GUM
-
LHR
25h 30m
1 stop
£1,200Korean Air
Fri, 13 Mar - Mon, 16 Mar
Korean Air Logo
18:50 - 14:35
LHR
-
GUM
33h 45m
1 stop
Korean Air Logo
01:00 - 16:30
GUM
-
LHR
25h 30m
1 stop
£1,201Korean Air
Sat, 14 Mar - Tue, 17 Mar
Korean Air Logo
18:50 - 14:35
LHR
-
GUM
33h 45m
1 stop
Korean Air Logo
16:50 - 16:30
GUM
-
LHR
33h 40m
1 stop
£1,227Korean Air
Sat, 7 Feb - Sat, 14 Feb
Korean Air Logo
18:50 - 14:35
LHR
-
GUM
33h 45m
1 stop
Korean Air Logo
16:50 - 16:30
GUM
-
LHR
33h 40m
1 stop
£1,263Korean Air
Sat, 7 Feb - Sat, 14 Feb
Korean Air Logo
18:50 - 23:05
LHR
-
GUM
18h 15m
1 stop
Korean Air Logo
01:00 - 16:30
GUM
-
LHR
25h 30m
1 stop
£1,265Korean Air
Tue, 24 Feb - Fri, 27 Feb
Multiple Airlines Logo
09:00 - 23:05
LHR
-
GUM
28h 05m
2 stops
Multiple Airlines Logo
16:50 - 16:30
GUM
-
LHR
33h 40m
1 stop
£1,379Multiple Airlines
Mon, 2 Mar - Fri, 20 Mar

Japan Airlines flights from London to Guam

Our best Japan Airlines deals on London to Guam flight tickets
Japan Airlines
14 Mar
LHR10:45London Heathrow
65h 50m
2 stops
GUM14:35Tamuning Guam Intl
18 Mar
GUM16:35Tamuning Guam Intl
26h 35m
2 stops
LHR09:10London Heathrow
£1,397
Japan Airlines
24 Feb
LHR10:20London Heathrow
42h 15m
2 stops
GUM14:35Tamuning Guam Intl
28 Feb
GUM16:35Tamuning Guam Intl
53h 55m
2 stops
LHR12:30London Heathrow
£1,468
Japan Airlines
24 Feb
LHR10:20London Heathrow
42h 15m
2 stops
GUM14:35Tamuning Guam Intl
28 Feb
GUM16:35Tamuning Guam Intl
53h 55m
2 stops
LHR12:30London Heathrow
£1,470

Korean Air flights from London to Guam

Our best Korean Air deals on London to Guam flight tickets
Korean Air
2 Mar
LHR18:50London Heathrow
18h 15m
1 stop
GUM23:05Tamuning Guam Intl
20 Mar
GUM16:50Tamuning Guam Intl
33h 40m
1 stop
LHR16:30London Heathrow
£1,093
Korean Air
2 Mar
LHR18:50London Heathrow
33h 45m
1 stop
GUM14:35Tamuning Guam Intl
20 Mar
GUM16:50Tamuning Guam Intl
33h 40m
1 stop
LHR16:30London Heathrow
£1,094
Korean Air
24 Feb
LHR18:50London Heathrow
18h 15m
1 stop
GUM23:05Tamuning Guam Intl
28 Feb
GUM16:50Tamuning Guam Intl
33h 40m
1 stop
LHR16:30London Heathrow
£1,138

momondo Fare Finder

 
Customise your flight search to find flights from London to Guam that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 16 January 2026.
Use the filters below to find and compare flights from London to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 2/3

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Fri 20/3

16:50-16:30

1 stop33h 40m

£1,093

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 2/3

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Fri 20/3

16:50-16:30

1 stop33h 40m

£1,094

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 24/2

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Sat 28/2

16:50-16:30

1 stop33h 40m

£1,138

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 13/3

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Tue 17/3

16:50-16:30

1 stop33h 40m

£1,197

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 13/3

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Mon 16/3

01:00-16:30

1 stop25h 30m

£1,200

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 14/3

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Tue 17/3

01:00-16:30

1 stop25h 30m

£1,201

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 7/2

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Sat 14/2

16:50-16:30

1 stop33h 40m

£1,227

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 7/2

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Sat 14/2

16:50-16:30

1 stop33h 40m

£1,263

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 24/2

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Fri 27/2

01:00-16:30

1 stop25h 30m

£1,265

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 2/3

09:00-23:05

2 stops28h 05m

Tamuning Guam Intl

Fri 20/3

16:50-16:30

1 stop33h 40m

£1,379

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
1
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See travel insights to Guam from

How to get the cheapest flight ticket from London to Guam

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 month to fly to Guam?

If you don’t want to visit Guam in November, then you should wait until June to fly from London, when ticket prices are also cheap, with an average price of £843.

Cheap London to Guam flight deals and tips

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

Fastest flight time

18h 15m

Direct flights

None
The fastest flight from London to Guam takes 18h 15m
There are no direct flights from London to Guam. There are no popular flight routes from London to Guam.
Search flight deals

  • When did momondo last update prices for flights from London to Guam?

    Prices for flights from London to Guam refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Guam.

  • What documentation or ID do you need to fly to Guam?

    The necessary travel and health documents for your Guam 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.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Guam for you.

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

Yes. momondo allows you to filter the results for London to Guam flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Guam?

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

Price alerts on flights to Guam from London 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.

An easier way to manage your Guam trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Popular Cities in Guam

Popular flights according to clicks in the last 7 days on momondo
Flights to Tamuningfrom £817