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Cheap flights from London Heathrow Airport to Guam from £935

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Guam departing on 12/12. 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 Heathrow Airport to Guam

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
07:30 - 23:00LHR-GUM
29h 30m2 stops
Multiple Airlines Logo
00:20 - 22:20GUM-LHR
32h 00m2 stops
£935Multiple Airlines
Find Deal
Fri, 12 Dec - Tue, 23 Dec
Multiple Airlines Logo
17:40 - 01:10LHR-GUM
21h 30m2 stops
Multiple Airlines Logo
02:40 - 19:10GUM-LHR
50h 30m2 stops
£961Multiple Airlines
Find Deal
Fri, 20 Feb - Fri, 27 Feb
Multiple Airlines Logo
06:35 - 01:10LHR-GUM
32h 35m3 stops
Multiple Airlines Logo
02:40 - 17:50GUM-LHR
25h 10m2 stops
£1,043Multiple Airlines
Find Deal
Fri, 20 Feb - Fri, 27 Feb
Korean Air Logo
18:50 - 23:05LHR-GUM
18h 15m1 stop
Korean Air Logo
16:50 - 16:30GUM-LHR
33h 40m1 stop
£1,091Korean Air
Find Deal
Tue, 24 Feb - Sat, 28 Feb
Korean Air Logo
18:50 - 23:05LHR-GUM
18h 15m1 stop
Korean Air Logo
16:50 - 16:30GUM-LHR
33h 40m1 stop
£1,092Korean Air
Find Deal
Mon, 2 Mar - Fri, 20 Mar
Korean Air Logo
18:50 - 14:35LHR-GUM
33h 45m1 stop
Korean Air Logo
01:00 - 16:30GUM-LHR
25h 30m1 stop
£1,160Korean Air
Find Deal
Mon, 9 Mar - Wed, 11 Mar
Japan Airlines Logo
08:25 - 14:35LHR-GUM
68h 10m2 stops
Japan Airlines Logo
16:35 - 06:25GUM-LHR
23h 50m1 stop
£1,287Japan Airlines
Find Deal
Fri, 12 Dec - Wed, 24 Dec
Japan Airlines Logo
19:10 - 14:35LHR-GUM
57h 25m2 stops
Japan Airlines Logo
16:35 - 08:20GUM-LHR
49h 45m2 stops
£1,302Japan Airlines
Find Deal
Tue, 24 Feb - Sat, 28 Feb
Japan Airlines Logo
19:10 - 14:35LHR-GUM
57h 25m2 stops
Japan Airlines Logo
16:35 - 08:20GUM-LHR
49h 45m2 stops
£1,307Japan Airlines
Find Deal
Tue, 24 Feb - Sat, 28 Feb
Japan Airlines Logo
18:30 - 14:35LHR-GUM
34h 05m1 stop
Japan Airlines Logo
16:35 - 06:25GUM-LHR
23h 50m1 stop
£1,318Japan Airlines
Find Deal
Fri, 20 Feb - Sat, 28 Feb

Korean Air flights from London Heathrow Airport to Guam

Our best Korean Air deals on London Heathrow Airport to Guam flight tickets
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
£1,091
Find similar
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
£1,092
Find similar
Korean Air
9 Mar
LHR18:50London Heathrow
33h 45m
1 stop
GUM14:35Tamuning Guam Intl
11 Mar
GUM01:00Tamuning Guam Intl
25h 30m
1 stop
LHR16:30London Heathrow
£1,160
Find similar

Japan Airlines flights from London Heathrow Airport to Guam

Our best Japan Airlines deals on London Heathrow Airport to Guam flight tickets
Japan Airlines
12 Dec
LHR08:25London Heathrow
68h 10m
2 stops
GUM14:35Tamuning Guam Intl
24 Dec
GUM16:35Tamuning Guam Intl
23h 50m
1 stop
LHR06:25London Heathrow
£1,287
Find similar
Japan Airlines
24 Feb
LHR19:10London Heathrow
57h 25m
2 stops
GUM14:35Tamuning Guam Intl
28 Feb
GUM16:35Tamuning Guam Intl
49h 45m
2 stops
LHR08:20London Heathrow
£1,302
Find similar
Japan Airlines
24 Feb
LHR19:10London Heathrow
57h 25m
2 stops
GUM14:35Tamuning Guam Intl
28 Feb
GUM16:35Tamuning Guam Intl
49h 45m
2 stops
LHR08:20London Heathrow
£1,307
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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 28 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 12/12

07:30-23:00

2 stops29h 30m

Tamuning Guam Intl

Tue 23/12

00:20-22:20

2 stops32h 00m

£935

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 20/2

17:40-01:10

2 stops21h 30m

Tamuning Guam Intl

Fri 27/2

02:40-19:10

2 stops50h 30m

£961

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 20/2

06:35-01:10

3 stops32h 35m

Tamuning Guam Intl

Fri 27/2

02:40-17:50

2 stops25h 10m

£1,043

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

£1,091

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

£1,092

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 9/3

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Wed 11/3

01:00-16:30

1 stop25h 30m

£1,160

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 12/12

08:25-14:35

2 stops68h 10m

Tamuning Guam Intl

Wed 24/12

16:35-06:25

1 stop23h 50m

£1,287

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 24/2

19:10-14:35

2 stops57h 25m

Tamuning Guam Intl

Sat 28/2

16:35-08:20

2 stops49h 45m

£1,302

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 24/2

19:10-14:35

2 stops57h 25m

Tamuning Guam Intl

Sat 28/2

16:35-08:20

2 stops49h 45m

£1,307

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 20/2

18:30-14:35

1 stop34h 05m

Tamuning Guam Intl

Sat 28/2

16:35-06:25

1 stop23h 50m

£1,318

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Guam from

How to get the cheapest flight ticket from London Heathrow Airport 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 day to depart on your flight to Guam?

Our data shows that Sunday is the least expensive day to fly to Guam. Tickets to fly out on this day can be as low as £856. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Guam for around £2,047.

What is the cheapest time of day to depart on your flight to Guam?

Our data shows that the cheapest London Heathrow Airport to Guam flights are usually those with departure times in the evening. Our users have found flights to Guam in the evening for as low as £1,053. In contrast, the most expensive time of day to depart to Guam is in the afternoon when prices are around £1,126.

Cheap London Heathrow Airport to Guam flight deals and tips

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

Direct flights

None
There are no direct flights from London Heathrow Airport to Guam. There are no popular flight routes from London Heathrow Airport to Guam.
Search flight deals

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

    Prices for flights from London Heathrow Airport to Guam were last updated today.

  • How many operators does momondo search for flights from London Heathrow Airport to Guam?

  • How old do you have to be to fly from London Heathrow Airport 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 Heathrow Airport to Guam.

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

    The required travel and health documents for your Guam trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Guam. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from London Heathrow Airport to Guam

Compare and see reviews for airlines that fly from London Heathrow Airport to Guam with momondo
Airline
Rating
Free Cancellation
Price
Japan AirlinesPriceFrom £826Free CancellationRating
8.3
1,593 reviews
Search Japan Airlines flights
Korean AirPriceFrom £1,036Free CancellationRating
8.4
1,153 reviews
Search Korean Air flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Guam. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Guam from London which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Guam.

I’m not ready to book a flight from London to Guam right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Guam flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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