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Cheap flights from London Heathrow Airport to Guam from £464

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 Heathrow Airport to Guam departing on 1/5. 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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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
17:40 - 01:10
LHR
-
GUM
21h 30m2 stops
Multiple Airlines Logo
02:40 - 18:05
GUM
-
LHR
25h 25m1 stop
£946Multiple Airlines
Tue, 10 Mar - Wed, 25 Mar
Multiple Airlines Logo
14:15 - 04:00
LHR
-
GUM
27h 45m2 stops
Multiple Airlines Logo
02:40 - 21:25
GUM
-
LHR
28h 45m2 stops
£991Multiple Airlines
Sat, 31 Jan - Fri, 6 Feb
Korean Air Logo
18:50 - 23:05
LHR
-
GUM
18h 15m1 stop
Korean Air Logo
01:00 - 16:30
GUM
-
LHR
25h 30m1 stop
£1,091Korean Air
Tue, 24 Feb - Fri, 27 Feb
Korean Air Logo
18:50 - 14:35
LHR
-
GUM
33h 45m1 stop
Korean Air Logo
16:50 - 16:30
GUM
-
LHR
33h 40m1 stop
£1,093Korean Air
Tue, 24 Feb - Sat, 28 Feb
Japan Airlines Logo
10:20 - 14:40
LHR
-
GUM
43h 20m2 stops
Japan Airlines Logo
16:40 - 09:10
GUM
-
LHR
25h 30m2 stops
£1,131Japan Airlines
Sun, 14 Jun - Thu, 18 Jun
Japan Airlines Logo
10:20 - 14:40
LHR
-
GUM
43h 20m2 stops
Japan Airlines Logo
16:40 - 17:05
GUM
-
LHR
33h 25m2 stops
£1,133Japan Airlines
Sun, 14 Jun - Thu, 18 Jun
Multiple Airlines Logo
08:40 - 04:00
LHR
-
GUM
33h 20m2 stops
Multiple Airlines Logo
05:45 - 06:25
GUM
-
LHR
34h 40m2 stops
£1,143Multiple Airlines
Tue, 10 Mar - Thu, 26 Mar
Multiple Airlines Logo
06:35 - 01:10
LHR
-
GUM
32h 35m3 stops
Multiple Airlines Logo
02:40 - 18:35
GUM
-
LHR
25h 55m2 stops
£1,154Multiple Airlines
Sat, 31 Jan - Fri, 6 Feb
Korean Air Logo
18:50 - 14:35
LHR
-
GUM
33h 45m1 stop
Korean Air Logo
16:50 - 16:30
GUM
-
LHR
33h 40m1 stop
£1,175Korean Air
Tue, 10 Mar - Thu, 26 Mar
Korean Air Logo
19:35 - 15:15
LHR
-
GUM
34h 40m1 stop
Korean Air Logo
17:00 - 17:20
GUM
-
LHR
33h 20m1 stop
£1,209Korean Air
Sun, 14 Jun - Thu, 18 Jun

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
27 Feb
GUM01:00Tamuning Guam Intl
25h 30m
1 stop
LHR16:30London Heathrow
£1,091
Find similar
Korean Air
24 Feb
LHR18:50London Heathrow
33h 45m
1 stop
GUM14:35Tamuning Guam Intl
28 Feb
GUM16:50Tamuning Guam Intl
33h 40m
1 stop
LHR16:30London Heathrow
£1,093
Find similar
Korean Air
10 Mar
LHR18:50London Heathrow
18h 15m
1 stop
GUM23:05Tamuning Guam Intl
25 Mar
GUM01:00Tamuning Guam Intl
25h 30m
1 stop
LHR16:30London Heathrow
£1,175
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
14 Jun
LHR10:20London Heathrow
43h 20m
2 stops
GUM14:40Tamuning Guam Intl
18 Jun
GUM16:40Tamuning Guam Intl
25h 30m
2 stops
LHR09:10London Heathrow
£1,131
Find similar
Japan Airlines
14 Jun
LHR10:20London Heathrow
43h 20m
2 stops
GUM14:40Tamuning Guam Intl
18 Jun
GUM16:40Tamuning Guam Intl
33h 25m
2 stops
LHR17:05London Heathrow
£1,133
Find similar
Japan Airlines
24 Feb
LHR10:20London Heathrow
42h 15m
2 stops
GUM14:35Tamuning Guam Intl
28 Feb
GUM16:35Tamuning Guam Intl
26h 35m
2 stops
LHR09:10London Heathrow
£1,507
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 18 December 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

Tue 10/3

17:40-01:10

2 stops21h 30m

Tamuning Guam Intl

Wed 25/3

02:40-18:05

1 stop25h 25m

£946

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 31/1

14:15-04:00

2 stops27h 45m

Tamuning Guam Intl

Fri 6/2

02:40-21:25

2 stops28h 45m

£991

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

£1,091

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 24/2

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Sat 28/2

16:50-16:30

1 stop33h 40m

£1,093

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 14/6

10:20-14:40

2 stops43h 20m

Tamuning Guam Intl

Thu 18/6

16:40-09:10

2 stops25h 30m

£1,131

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 14/6

10:20-14:40

2 stops43h 20m

Tamuning Guam Intl

Thu 18/6

16:40-17:05

2 stops33h 25m

£1,133

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 10/3

08:40-04:00

2 stops33h 20m

Tamuning Guam Intl

Thu 26/3

05:45-06:25

2 stops34h 40m

£1,143

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 31/1

06:35-01:10

3 stops32h 35m

Tamuning Guam Intl

Fri 6/2

02:40-18:35

2 stops25h 55m

£1,154

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 10/3

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Thu 26/3

16:50-16:30

1 stop33h 40m

£1,175

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 14/6

19:35-15:15

1 stop34h 40m

Tamuning Guam Intl

Thu 18/6

17:00-17:20

1 stop33h 20m

£1,209

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 £854. 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 £2,040.

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 £1,050. In contrast, the most expensive time of day to depart to Guam is in the afternoon when prices are around £1,122.

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

Fastest flight time

18h 15m

Direct flights

None
The fastest flight from London Heathrow Airport to Guam takes 18h 15m
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 £883Free CancellationRating
8.3
1,662 reviews
Search Japan Airlines 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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Popular flights according to clicks in the last 7 days on momondo
Flights to Tamuningfrom £1,053