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Cheap flights from London to Guam from £1,004

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 5/6. 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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Find the cheapest flights from London to Guam

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
09:30 - 23:45
LHR
-
GUM
29h 15m
2 stops
Multiple Airlines Logo
04:40 - 07:00
GUM
-
LHR
35h 20m
2 stops
£1,004Multiple Airlines
Fri, 5 Jun - Fri, 12 Jun
Multiple Airlines Logo
06:40 - 23:45
LHR
-
GUM
32h 05m
3 stops
Multiple Airlines Logo
04:40 - 07:00
GUM
-
LHR
35h 20m
2 stops
£1,020Multiple Airlines
Fri, 5 Jun - Fri, 12 Jun
Multiple Airlines Logo
09:30 - 14:40
LHR
-
GUM
44h 10m
2 stops
Multiple Airlines Logo
16:40 - 14:05
GUM
-
LHR
30h 25m
2 stops
£1,072Multiple Airlines
Thu, 14 May - Thu, 21 May
Multiple Airlines Logo
09:30 - 14:40
LHR
-
GUM
44h 10m
2 stops
Multiple Airlines Logo
16:40 - 14:05
GUM
-
LHR
30h 25m
2 stops
£1,079Multiple Airlines
Thu, 14 May - Thu, 21 May
Multiple Airlines Logo
16:35 - 23:45
LHR
-
GUM
22h 10m
1 stop
Multiple Airlines Logo
00:50 - 14:20
GUM
-
LHR
22h 30m
1 stop
£1,168Multiple Airlines
Fri, 5 Jun - Thu, 11 Jun
Multiple Airlines Logo
16:35 - 23:45
LHR
-
GUM
22h 10m
1 stop
Multiple Airlines Logo
00:50 - 20:25
GUM
-
LHR
28h 35m
2 stops
£1,220Multiple Airlines
Fri, 5 Jun - Thu, 11 Jun
Korean Air Logo
13:25 - 15:35
LHR
-
GUM
41h 10m
1 stop
Korean Air Logo
17:20 - 17:20
GUM
-
LHR
33h 00m
1 stop
£1,394Korean Air
Thu, 14 May - Thu, 21 May
Multiple Airlines Logo
16:00 - 14:35
LHR
-
GUM
37h 35m
2 stops
Multiple Airlines Logo
16:40 - 14:10
GUM
-
LHR
30h 30m
2 stops
£1,459Multiple Airlines
Mon, 28 Sep - Mon, 12 Oct
Multiple Airlines Logo
16:00 - 14:35
LHR
-
GUM
37h 35m
2 stops
Multiple Airlines Logo
16:40 - 14:05
GUM
-
LHR
30h 25m
2 stops
£1,460Multiple Airlines
Mon, 28 Sep - Mon, 12 Oct
Multiple Airlines Logo
15:05 - 14:35
LHR
-
GUM
38h 30m
2 stops
Multiple Airlines Logo
16:40 - 13:15
GUM
-
LHR
29h 35m
2 stops
£1,479Multiple Airlines
Mon, 28 Sep - Mon, 12 Oct

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Korean Air flights from London to Guam

Our best Korean Air deals on London to Guam flight tickets
Korean Air
14 May
LHR13:25London Heathrow
41h 10m
1 stop
GUM15:35Tamuning Guam Intl
21 May
GUM17:20Tamuning Guam Intl
33h 00m
1 stop
LHR17:20London Heathrow
£1,394
Korean Air
14 May
LHR13:25London Heathrow
41h 10m
1 stop
GUM15:35Tamuning Guam Intl
21 May
GUM17:20Tamuning Guam Intl
33h 00m
1 stop
LHR17:20London Heathrow
£1,493
Korean Air
28 Sept
LHR19:35London Heathrow
19h 20m
1 stop
GUM23:55Tamuning Guam Intl
11 Oct
GUM02:00Tamuning Guam Intl
25h 50m
1 stop
LHR18:50London Heathrow
£1,520

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 23 April 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

Fri 5/6

09:30-23:45

2 stops29h 15m

Tamuning Guam Intl

Fri 12/6

04:40-07:00

2 stops35h 20m

£1,004

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 5/6

06:40-23:45

3 stops32h 05m

Tamuning Guam Intl

Fri 12/6

04:40-07:00

2 stops35h 20m

£1,020

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Thu 14/5

09:30-14:40

2 stops44h 10m

Tamuning Guam Intl

Thu 21/5

16:40-14:05

2 stops30h 25m

£1,072

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Thu 14/5

09:30-14:40

2 stops44h 10m

Tamuning Guam Intl

Thu 21/5

16:40-14:05

2 stops30h 25m

£1,079
Fastest return journey

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 5/6

16:35-23:45

1 stop22h 10m

Tamuning Guam Intl

Thu 11/6

00:50-14:20

1 stop22h 30m

£1,168

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 5/6

16:35-23:45

1 stop22h 10m

Tamuning Guam Intl

Thu 11/6

00:50-20:25

2 stops28h 35m

£1,220

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Thu 14/5

13:25-15:35

1 stop41h 10m

Tamuning Guam Intl

Thu 21/5

17:20-17:20

1 stop33h 00m

£1,394

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 28/9

16:00-14:35

2 stops37h 35m

Tamuning Guam Intl

Mon 12/10

16:40-14:10

2 stops30h 30m

£1,459

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 28/9

16:00-14:35

2 stops37h 35m

Tamuning Guam Intl

Mon 12/10

16:40-14:05

2 stops30h 25m

£1,460

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 28/9

15:05-14:35

2 stops38h 30m

Tamuning Guam Intl

Mon 12/10

16:40-13:15

2 stops29h 35m

£1,479

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

28h 25m

Direct flights

None
The fastest flight from London to Guam takes 28h 25m
There are no direct flights from London to Guam. There are no popular flight routes from London to Guam.
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Frequently asked questions about flying from London to Guam

  • 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.

Frequently asked questions about flying from London to Guam

  • 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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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 £1,072