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Cheap flights from London to Guam from £817

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London to Guam departing on 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:35 - 03:35
LHR
-
GUM
26h 00m
1 stop
Multiple Airlines Logo
00:50 - 14:20
GUM
-
LHR
22h 30m
1 stop
£817Multiple Airlines
Sat, 9 May - Tue, 12 May
Multiple Airlines Logo
12:35 - 03:35
LGW
-
GUM
30h 00m
2 stops
Multiple Airlines Logo
04:40 - 06:35
GUM
-
LGW
34h 55m
2 stops
£820Multiple Airlines
Sat, 9 May - Wed, 13 May
Multiple Airlines Logo
11:00 - 03:35
LGW
-
GUM
31h 35m
2 stops
Multiple Airlines Logo
04:40 - 18:30
GUM
-
LGW
46h 50m
2 stops
£854Multiple Airlines
Fri, 22 May - Fri, 29 May
Multiple Airlines Logo
16:35 - 03:35
LHR
-
GUM
26h 00m
1 stop
Multiple Airlines Logo
00:50 - 14:20
GUM
-
LHR
22h 30m
1 stop
£865Multiple Airlines
Fri, 22 May - Thu, 28 May
Multiple Airlines Logo
13:40 - 03:35
LHR
-
GUM
28h 55m
2 stops
Multiple Airlines Logo
04:40 - 06:35
GUM
-
LHR
34h 55m
2 stops
£978Multiple Airlines
Sat, 4 Apr - Fri, 24 Apr
Multiple Airlines Logo
16:35 - 23:45
LHR
-
GUM
22h 10m
1 stop
Multiple Airlines Logo
00:50 - 18:05
GUM
-
LHR
26h 15m
2 stops
£1,022Multiple Airlines
Sat, 9 May - Tue, 12 May
Multiple Airlines Logo
14:55 - 03:35
LGW
-
GUM
27h 40m
2 stops
Multiple Airlines Logo
04:40 - 06:40
GUM
-
LGW
35h 00m
2 stops
£1,038Multiple Airlines
Sat, 4 Apr - Fri, 24 Apr
Multiple Airlines Logo
17:00 - 03:35
LHR
-
GUM
25h 35m
2 stops
Multiple Airlines Logo
04:40 - 15:15
GUM
-
LHR
43h 35m
2 stops
£1,089Multiple Airlines
Sat, 9 May - Wed, 13 May
Korean Air Logo
19:35 - 23:55
LHR
-
GUM
19h 20m
1 stop
Korean Air Logo
03:00 - 17:20
GUM
-
LHR
23h 20m
1 stop
£1,177Korean Air
Tue, 1 Sep - Fri, 4 Sep
Korean Air Logo
19:35 - 23:55
LHR
-
GUM
19h 20m
1 stop
Korean Air Logo
03:00 - 17:20
GUM
-
LHR
23h 20m
1 stop
£1,180Korean Air
Fri, 8 May - Sat, 9 May

Korean Air flights from London to Guam

Our best Korean Air deals on London to Guam flight tickets
Korean Air
1 Sept
LHR19:35London Heathrow
19h 20m
1 stop
GUM23:55Tamuning Guam Intl
4 Sept
GUM03:00Tamuning Guam Intl
23h 20m
1 stop
LHR17:20London Heathrow
£1,177
Korean Air
8 May
LHR19:35London Heathrow
19h 20m
1 stop
GUM23:55Tamuning Guam Intl
9 May
GUM03:00Tamuning Guam Intl
23h 20m
1 stop
LHR17:20London Heathrow
£1,180
Korean Air
9 May
LHR19:35London Heathrow
19h 20m
1 stop
GUM23:55Tamuning Guam Intl
13 May
GUM17:20Tamuning Guam Intl
33h 00m
1 stop
LHR17:20London Heathrow
£1,204

Japan Airlines flights from London to Guam

Our best Japan Airlines deals on London to Guam flight tickets
Japan Airlines
9 May
LHR19:10London Heathrow
58h 30m
2 stops
GUM14:40Tamuning Guam Intl
13 May
GUM16:40Tamuning Guam Intl
37h 00m
2 stops
LHR20:40London Heathrow
£1,379
Japan Airlines
9 May
LHR19:10London Heathrow
58h 30m
2 stops
GUM14:40Tamuning Guam Intl
13 May
GUM16:40Tamuning Guam Intl
37h 00m
2 stops
LHR20:40London Heathrow
£1,385
Japan Airlines
9 May
LHR19:10London Heathrow
58h 30m
2 stops
GUM14:40Tamuning Guam Intl
13 May
GUM16:40Tamuning Guam Intl
37h 00m
2 stops
LHR20:40London Heathrow
£1,437

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 9 March 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

Cheapest return flight

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 9/5

16:35-03:35

1 stop26h 00m

Tamuning Guam Intl

Tue 12/5

00:50-14:20

1 stop22h 30m

£817

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Sat 9/5

12:35-03:35

2 stops30h 00m

Tamuning Guam Intl

Wed 13/5

04:40-06:35

2 stops34h 55m

£820

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Fri 22/5

11:00-03:35

2 stops31h 35m

Tamuning Guam Intl

Fri 29/5

04:40-18:30

2 stops46h 50m

£854

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 22/5

16:35-03:35

1 stop26h 00m

Tamuning Guam Intl

Thu 28/5

00:50-14:20

1 stop22h 30m

£865

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 4/4

13:40-03:35

2 stops28h 55m

Tamuning Guam Intl

Fri 24/4

04:40-06:35

2 stops34h 55m

£978

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 9/5

16:35-23:45

1 stop22h 10m

Tamuning Guam Intl

Tue 12/5

00:50-18:05

2 stops26h 15m

£1,022

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Sat 4/4

14:55-03:35

2 stops27h 40m

Tamuning Guam Intl

Fri 24/4

04:40-06:40

2 stops35h 00m

£1,038

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 9/5

17:00-03:35

2 stops25h 35m

Tamuning Guam Intl

Wed 13/5

04:40-15:15

2 stops43h 35m

£1,089
Fastest return journey

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 1/9

19:35-23:55

1 stop19h 20m

Tamuning Guam Intl

Fri 4/9

03:00-17:20

1 stop23h 20m

£1,177

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 8/5

19:35-23:55

1 stop19h 20m

Tamuning Guam Intl

Sat 9/5

03:00-17:20

1 stop23h 20m

£1,180

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

19h 20m

Direct flights

None
The fastest flight from London to Guam takes 19h 20m
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.

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

    You can take advantage of momondo’s Price Alerts by first searching for your flights to London from Guam. 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 London to Guam with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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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Wed 8/4
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Find better results for your trip to Guam

Popular Cities in Guam

Popular flights according to clicks in the last 7 days on momondo
Flights to Tamuningfrom £820