What is the cheapest airline that flies from London to Guam?

Korean Air and United Airlines are the most popular carriers operating 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 many operators does momondo search for flights from London to Guam?

The number of operators available for flights from London to Guam is 2 as of July 2025.

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.

£319 Cheap Flights from London to Guam in 2025

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Find the cheapest flights from London to Guam

Round-trip

One-way

Last minute

Cheap return flights

06:30 - 23:10LHR-GUM

31h 40m2 stops

00:20 - 22:00GUM-LHR

30h 40m2 stops

£624

Find Deal

Thu, 4 Sep - Wed, 10 Sep

12:35 - 02:30LGW-GUM

28h 55m2 stops

03:40 - 18:35GUM-LGW

47h 55m3 stops

£665

Find Deal

Thu, 4 Sep - Wed, 10 Sep

11:35 - 23:10LGW-GUM

26h 35m2 stops

00:20 - 15:00GUM-LGW

47h 40m2 stops

£666

Find Deal

Wed, 10 Sep - Mon, 22 Sep

18:00 - 02:30LGW-GUM

23h 30m2 stops

03:40 - 06:40GUM-LGW

36h 00m2 stops

£689

Find Deal

Thu, 4 Sep - Wed, 10 Sep

10:20 - 14:40LHR-GUM

43h 20m2 stops

16:40 - 15:50GUM-LHR

32h 10m1 stop

£1,112Japan Airlines

Find Deal

Wed, 10 Sep - Tue, 23 Sep

10:20 - 14:40LHR-GUM

43h 20m2 stops

16:40 - 19:55GUM-LHR

36h 15m2 stops

£1,188Japan Airlines

Find Deal

Fri, 5 Sep - Fri, 12 Sep

20:05 - 14:40LHR-GUM

57h 35m2 stops

16:40 - 07:25GUM-LHR

47h 45m2 stops

£1,299Japan Airlines

Find Deal

Thu, 7 Aug - Thu, 28 Aug

19:35 - 00:10LHR-GUM

19h 35m1 stop

17:00 - 17:20GUM-LHR

33h 20m1 stop

£1,359Korean Air

Find Deal

Thu, 4 Sep - Thu, 11 Sep

19:35 - 15:15LHR-GUM

34h 40m1 stop

15:55 - 17:20GUM-LHR

34h 25m1 stop

£1,888Korean Air

Find Deal

Fri, 5 Sep - Fri, 12 Sep

19:35 - 00:10LHR-GUM

19h 35m1 stop

17:00 - 17:20GUM-LHR

33h 20m1 stop

£1,895Korean Air

Find Deal

Fri, 5 Sep - Fri, 12 Sep

Japan Airlines flights from London to Guam

Our best Japan Airlines deals on London to Guam flight tickets

Japan Airlines

25 Jul

LHR19:20London Heathrow

34h 20m

1 stop

GUM14:40Tamuning Guam Intl

30 Jul

GUM16:40Tamuning Guam Intl

55h 30m

2 stops

LHR15:10London Heathrow

£1,013

Find similar

Japan Airlines

10 Sept

LHR10:20London Heathrow

43h 20m

2 stops

GUM14:40Tamuning Guam Intl

23 Sept

GUM16:40Tamuning Guam Intl

32h 10m

1 stop

LHR15:50London Heathrow

£1,112

Find similar

Japan Airlines

25 Jul

LHR19:20London Heathrow

34h 20m

1 stop

GUM14:40Tamuning Guam Intl

30 Jul

GUM16:40Tamuning Guam Intl

32h 10m

1 stop

LHR15:50London Heathrow

£1,128

Find similar

Korean Air flights from London to Guam

Our best Korean Air deals on London to Guam flight tickets

Korean Air

4 Sept

LHR19:35London Heathrow

19h 35m

1 stop

GUM00:10Tamuning Guam Intl

11 Sept

GUM17:00Tamuning Guam Intl

33h 20m

1 stop

LHR17:20London Heathrow

£1,359

Find similar

Korean Air

5 Sept

LHR19:35London Heathrow

34h 40m

1 stop

GUM15:15Tamuning Guam Intl

12 Sept

GUM15:55Tamuning Guam Intl

34h 25m

1 stop

LHR17:20London Heathrow

£1,888

Find similar

Korean Air

5 Sept

LHR19:35London Heathrow

19h 35m

1 stop

GUM00:10Tamuning Guam Intl

12 Sept

GUM17:00Tamuning Guam Intl

33h 20m

1 stop

LHR17:20London Heathrow

£1,895

Find similar

How to get the cheapest flight ticket from London 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

Prices

Airlines

What is the cheapest month to fly to Guam?

If you don’t want to visit Guam in June, then you should wait until January to fly from London, when ticket prices are also cheap, with an average price of £888.

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 £846. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London to Guam for around £2,022.

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

Our data shows that the cheapest London 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 £1,040. In contrast, the most expensive time of day to depart to Guam is in the afternoon when prices are around £1,112.

Cheap London to Guam flight deals and tips

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

Best price found	£319
Fastest flight time	18h 10m
Direct flights	None
Airports in Guam	1 airport

The best one-way flight to Guam from London in the past 72 hours is £319. The best return flight deal from London to Guam found on momondo in the last 72 hours is £624.

The fastest flight from London to Guam takes 18h 10m

There are no direct flights from London to Guam. Popular non-direct routes for this connection are London Gatwick Airport - Tamuning Guam Intl Airport and London Heathrow Airport - Tamuning Guam Intl Airport.

There is 1 airport near Guam: Tamuning Guam Intl (GUM)

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 many operators does momondo search for flights from London to Guam?
The number of operators available for flights from London to Guam is 2 as of July 2025.
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.

Best airlines flying from London to Guam

Compare and see reviews for airlines that fly from London to Guam with momondo

Airline	Rating	Free Cancellation	Price
Japan Airlines	PriceFrom £816	Free Cancellation	Rating 8.3 1,527 reviews		Search Japan Airlines flights
Korean Air	PriceFrom £1,023	Free Cancellation	Rating 8.4 1,114 reviews		Search Korean Air flights

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

Flights to Tamuningfrom £822

Cheap flights from London to Guam from £319

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 to Guam departing on 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London to Guam

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Japan Airlines flights from London to Guam

Our best Japan Airlines deals on London to Guam flight tickets

Korean Air flights from London to Guam

Our best Korean Air deals on London to Guam flight tickets

See travel insights to Guam from

How to get the cheapest flight ticket from London 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 month to fly to Guam?

If you don’t want to visit Guam in June, then you should wait until January to fly from London, when ticket prices are also cheap, with an average price of £888.

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 £846. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London to Guam for around £2,022.

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

Our data shows that the cheapest London 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 £1,040. In contrast, the most expensive time of day to depart to Guam is in the afternoon when prices are around £1,112.

What is the cheapest airline that flies from London to Guam?

Korean Air and United Airlines are the most popular carriers operating from London to Guam

Cheap London to Guam flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in Guam

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

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

How old do you have to be to fly from London to Guam?

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

Best airlines flying from London to Guam

Compare and see reviews for airlines that fly from London to Guam with momondo

Why use momondo?

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

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

How can momondo help me find flights 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?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Guam

Popular Cities in Guam

Popular flights according to clicks in the last 7 days on momondo