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Cheap flights from London Heathrow Airport to Guam from £920

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 14/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
09:30 - 14:40
LHR
-
GUM
44h 10m
2 stops
Multiple Airlines Logo
16:40 - 14:10
GUM
-
LHR
30h 30m
2 stops
£920Multiple Airlines
Thu, 14 May - Thu, 21 May
Multiple Airlines Logo
16:00 - 14:40
LHR
-
GUM
37h 40m
2 stops
Multiple Airlines Logo
16:40 - 14:10
GUM
-
LHR
30h 30m
2 stops
£979Multiple Airlines
Wed, 13 May - Wed, 20 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
£1,071Multiple 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 - 14:10
GUM
-
LHR
30h 30m
2 stops
£1,089Multiple 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 - 13:15
GUM
-
LHR
29h 35m
2 stops
£1,108Multiple Airlines
Sat, 16 May - Sun, 24 May
Korean Air Logo
19:35 - 15:35
LHR
-
GUM
35h 00m
1 stop
Korean Air Logo
17:20 - 17:20
GUM
-
LHR
33h 00m
1 stop
£1,217Korean Air
Wed, 13 May - Wed, 20 May
Korean Air Logo
13:25 - 15:35
LHR
-
GUM
41h 10m
1 stop
Korean Air Logo
17:20 - 18:50
GUM
-
LHR
34h 30m
1 stop
£1,289Korean Air
Thu, 14 May - Thu, 21 May
Japan Airlines Logo
19:20 - 14:40
LHR
-
GUM
34h 20m
1 stop
Japan Airlines Logo
16:40 - 17:05
GUM
-
LHR
33h 25m
2 stops
£1,321Japan Airlines
Wed, 13 May - Wed, 20 May
Korean Air Logo
19:35 - 15:35
LHR
-
GUM
35h 00m
1 stop
Korean Air Logo
17:20 - 17:20
GUM
-
LHR
33h 00m
1 stop
£1,321Korean Air
Sun, 7 Jun - Thu, 11 Jun
Korean Air Logo
19:35 - 15:35
LHR
-
GUM
35h 00m
1 stop
Korean Air Logo
17:20 - 17:20
GUM
-
LHR
33h 00m
1 stop
£1,371Korean Air
Fri, 15 May - Sat, 23 May

Korean Air flights from London Heathrow Airport to Guam

Our best Korean Air deals on London Heathrow Airport to Guam flight tickets
Korean Air
13 May
LHR19:35London Heathrow
35h 00m
1 stop
GUM15:35Tamuning Guam Intl
20 May
GUM17:20Tamuning Guam Intl
33h 00m
1 stop
LHR17:20London Heathrow
£1,217
Korean Air
14 May
LHR13:25London Heathrow
41h 10m
1 stop
GUM15:35Tamuning Guam Intl
21 May
GUM17:20Tamuning Guam Intl
34h 30m
1 stop
LHR18:50London Heathrow
£1,289
Korean Air
7 Jun
LHR19:35London Heathrow
35h 00m
1 stop
GUM15:35Tamuning Guam Intl
11 Jun
GUM17:20Tamuning Guam Intl
33h 00m
1 stop
LHR17:20London Heathrow
£1,321

Japan Airlines flights from London Heathrow Airport to Guam

Our best Japan Airlines deals on London Heathrow Airport to Guam flight tickets
Japan Airlines
13 May
LHR19:20London Heathrow
34h 20m
1 stop
GUM14:40Tamuning Guam Intl
20 May
GUM16:40Tamuning Guam Intl
33h 25m
2 stops
LHR17:05London Heathrow
£1,321
Japan Airlines
15 May
LHR20:05London Heathrow
57h 35m
2 stops
GUM14:40Tamuning Guam Intl
23 May
GUM16:40Tamuning Guam Intl
55h 30m
2 stops
LHR15:10London Heathrow
£1,554
Japan Airlines
15 May
LHR20:05London Heathrow
57h 35m
2 stops
GUM14:40Tamuning Guam Intl
24 May
GUM16:40Tamuning Guam Intl
51h 55m
2 stops
LHR11:35London Heathrow
£1,653

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 19 April 2026.
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

Cheapest return flight

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Thu 14/5

09:30-14:40

2 stops44h 10m

Tamuning Guam Intl

Thu 21/5

16:40-14:10

2 stops30h 30m

£920

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Wed 13/5

16:00-14:40

2 stops37h 40m

Tamuning Guam Intl

Wed 20/5

16:40-14:10

2 stops30h 30m

£979

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

£1,071

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Thu 14/5

09:30-14:40

2 stops44h 10m

Tamuning Guam Intl

Thu 21/5

16:40-14:10

2 stops30h 30m

£1,089

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 16/5

09:30-14:40

2 stops44h 10m

Tamuning Guam Intl

Sun 24/5

16:40-13:15

2 stops29h 35m

£1,108

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Wed 13/5

19:35-15:35

1 stop35h 00m

Tamuning Guam Intl

Wed 20/5

17:20-17:20

1 stop33h 00m

£1,217

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Thu 14/5

13:25-15:35

1 stop41h 10m

Tamuning Guam Intl

Thu 21/5

17:20-18:50

1 stop34h 30m

£1,289
Fastest return journey

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Wed 13/5

19:20-14:40

1 stop34h 20m

Tamuning Guam Intl

Wed 20/5

16:40-17:05

2 stops33h 25m

£1,321

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 7/6

19:35-15:35

1 stop35h 00m

Tamuning Guam Intl

Thu 11/6

17:20-17:20

1 stop33h 00m

£1,321

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 15/5

19:35-15:35

1 stop35h 00m

Tamuning Guam Intl

Sat 23/5

17:20-17:20

1 stop33h 00m

£1,371

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

37h 35m

Direct flights

None
The fastest flight from London Heathrow Airport to Guam takes 37h 35m
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

Frequently asked questions about flying from London Heathrow Airport to Guam

  • 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 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.

Frequently asked questions about flying from London Heathrow Airport to Guam

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

    Price Alerts will notify you by email when the price for flights to Guam from London Heathrow Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from London Heathrow Airport to Guam with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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.

An easier way to manage your Guam trip

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Popular Cities in Guam

Popular flights according to clicks in the last 7 days on momondo
Flights to Tamuningfrom £979