In terms of precipitation, rainfall in Guam ranges from 65.0 - 365.0 inches per month. August is typically the wettest month, when rainfall can reach 365.0 mm. March is typically the driest time to visit Guam when rainfall is around 65.0 mm.

If weather is an important factor for your trip to Guam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

What is the cheapest time of day to fly from LON to GU?

When flying from London to Guam, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from London to Guam that include hotel bookings?

Yes. In addition to deals on London to Guam flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to Guam?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Guam.

Can I find deals for business class flights from London to Guam?

Yes. Cheapflights offers flight deals from London to Guam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£482+ Cheap Flights from London to Guam

Cheap flight deals from London to Guam

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from London to Guam
Explore the most affordable flight options available from London to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2026.

Tue 29/910:50 -

2 stops31h 45m

Tue 6/1004:40 -

2 stops38h 15m

Deal found 15/8£878

Tue 18/807:45 -

3 stops33h 05m

Thu 20/804:40 -

2 stops35h 00m

Deal found 14/8£898

Tue 29/918:30 -

2 stops24h 05m

Tue 6/1004:40 -

2 stops50h 45m

Deal found 15/8£907

Mon 28/911:35 -

2 stops27h 10m

Mon 5/1004:40 -

2 stops35h 00m

Deal found 14/8£923

Wed 30/910:50 -

2 stops31h 45m

Wed 7/1004:40 -

2 stops50h 50m

Deal found 16/8£926

Thu 1/1005:15 -

3 stops37h 20m

Thu 8/1004:40 -

3 stops45h 10m

Deal found 17/8£927

Wed 30/918:30 -

2 stops24h 05m

Wed 7/1004:40 -

2 stops26h 45m

Deal found 16/8£941

Mon 7/916:35 -

1 stop23h 25m

Thu 10/902:20 -

2 stops26h 00m

Deal found 18/8£943

Thu 1/1007:30 -

2 stops35h 05m

Thu 8/1004:40 -

2 stops49h 00m

Deal found 17/8£977

Tue 15/919:35 -

1 stop20h 40m

Wed 30/900:50 -

1 stop25h 30m

Deal found 17/8£1,002

Mon 28/916:35 -

1 stop23h 25m

Sun 4/1002:00 -

2 stops26h 20m

Deal found 14/8£1,118

Tue 22/1206:30 -

2 stops32h 30m

Tue 5/102:40 -

2 stops40h 30m

Deal found 15/8£3,657

Find flight deals from London to Guam

Round-trip from	£816
One-way from	£482

27/9-4/10
4 total stops
65h 05m total
London to Guam

Search Deals

22/10
3 total stops
35h 35m total
London to Guam

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Tue 29/9

10:50-03:35

2 stops31h 45m

Tamuning Guam Intl

Tue 6/10

04:40-09:55

2 stops38h 15m

£878

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Mon 28/9

11:35-23:45

2 stops27h 10m

Tamuning Guam Intl

Mon 5/10

04:40-06:40

2 stops35h 00m

£923

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Wed 30/9

10:50-03:35

2 stops31h 45m

Tamuning Guam Intl

Wed 7/10

04:40-22:30

2 stops50h 50m

£926

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Thu 1/10

05:15-03:35

3 stops37h 20m

Tamuning Guam Intl

Thu 8/10

04:40-16:50

3 stops45h 10m

£927

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Tue 15/9

19:35-01:15

1 stop20h 40m

Tamuning Guam Intl

Wed 30/9

00:50-17:20

1 stop25h 30m

£1,002

Fastest return journey

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Wed 30/9

19:35-03:35

1 stop23h 00m

Tamuning Guam Intl

Wed 7/10

04:40-17:20

1 stop21h 40m

£1,082

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Mon 28/9

16:35-01:00

1 stop23h 25m

Tamuning Guam Intl

Sun 4/10

02:00-19:20

2 stops26h 20m

£1,118

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Thu 1/10

06:15-23:45

3 stops32h 30m

Tamuning Guam Intl

Thu 8/10

04:40-07:30

2 stops35h 50m

£1,172

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Mon 7/9

19:35-23:55

1 stop19h 20m

Tamuning Guam Intl

Fri 11/9

17:20-17:20

1 stop33h 00m

£1,334

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Mon 7/9

15:05-04:20

2 stops28h 15m

Tamuning Guam Intl

Fri 11/9

06:00-06:25

2 stops33h 25m

£1,372

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 14 resultsSorted by cheapest first

Best time to book a flight from London to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from London with our price prediction graph.

LGW-GUM

LHR-GUM

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Guam

LON-GU0

LGW-GUM

LHR-GUM

No data available for this route at this time. Please check back soon.

Related info for your journey

Can I find deals for flights from London to Guam that include hotel bookings?
Yes. In addition to deals on London to Guam flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Guam?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Guam.
Can I find deals for business class flights from London to Guam?
Yes. Cheapflights offers flight deals from London to Guam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to

Flights by cabin class

Other flight options

Popular flights

Top destinations

Alternative routes for London to Guam

Heathrow to Sydney flights

Gatwick to Sydney flights

Stansted to Sydney flights

Heathrow to Melbourne flights

Heathrow to Perth flights

London City to Sydney flights

Gatwick to Melbourne flights

Heathrow to Auckland flights

Stansted to Melbourne flights

Gatwick to Auckland flights

Gatwick to Perth flights

Heathrow to Brisbane flights

Stansted to Auckland flights

Manchester to Sydney flights

Stansted to Perth flights

London City to Melbourne flights

Heathrow to Avalon flights

Luton to Sydney flights

Gatwick to Brisbane flights

London City to Auckland flights

Stansted to Brisbane flights

London City to Brisbane flights

London City to Perth flights

Manchester to Perth flights

Manchester to Melbourne flights

Manchester to Brisbane flights

Luton to Auckland flights

Manchester to Auckland flights

Edinburgh to Sydney flights

Heathrow to Adelaide flights

Heathrow to Christchurch flights

Manchester to Avalon flights

Gatwick to Adelaide flights

Gatwick to Christchurch flights

Heathrow to Nadi flights

Stansted to Christchurch flights

Birmingham to Sydney flights

Stansted to Adelaide flights

Newcastle upon Tyne to Sydney flights

Edinburgh to Melbourne flights

Luton to Perth flights

Heathrow to Wellington flights

Birmingham to Melbourne flights

Manchester to Christchurch flights

London City to Adelaide flights

Gatwick to Wellington flights

Newcastle upon Tyne to Perth flights

Birmingham to Perth flights

Gatwick to Nadi flights

Edinburgh to Perth flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Guam?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Guam. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London to Guam?

Cheapflights helps you find that perfect flight to Guam from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Guam with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Guam, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Guam become cheaper?

Not ready to book yet? You can track prices for flights from London to Guam on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London to Guam from £482

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Guam

Cheapest flights from London to GuamExplore the most affordable flight options available from London to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2026.

Explore the most affordable flight options available from London to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2026.

Best flights from London to GuamDiscover carefully curated flight deals from London to Guam that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.

Discover carefully curated flight deals from London to Guam that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.

Last-minute flights from London to GuamDiscover last-minute flight deals from London to Guam. Data last updated 19 August 2026 and is based on user searches.

Discover last-minute flight deals from London to Guam. Data last updated 19 August 2026 and is based on user searches.

One-way flights from London to GuamSearch for one-way flight options from London to Guam. Find affordable one-way fares based on user searches. Data last updated 19 August 2026.

Search for one-way flight options from London to Guam. Find affordable one-way fares based on user searches. Data last updated 19 August 2026.

Find flight deals from London to Guam

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Guam that are best for you.

Best time to book a flight from London to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from London with our price prediction graph.

Cheapflights Insights

Related info for your journey

Can I find deals for flights from London to Guam that include hotel bookings?

How can I find direct flights from London to Guam?

Can I find deals for business class flights from London to Guam?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Guam

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Guam by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from London to Guam by cabin class

Find flights from London to Guam, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and Guam flights

Browse other London and Guam flight options. Last updated on 19 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

London to Guam flights

Consider these flights travelling from London to Guam.

Fly with Cheapflights

How does Cheapflights help users find flights from London to Guam?

Why should you use Cheapflights to find cheap flight tickets from London to Guam?

Can Cheapflights find flights from London to Guam with no change fees?

Can Cheapflights notify me if prices for flights from London to Guam become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from London to Guam
Explore the most affordable flight options available from London to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2026.

Best flights from London to Guam
Discover carefully curated flight deals from London to Guam that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 August 2026.

Last-minute flights from London to Guam
Discover last-minute flight deals from London to Guam. Data last updated 19 August 2026 and is based on user searches.

One-way flights from London to Guam
Search for one-way flight options from London to Guam. Find affordable one-way fares based on user searches. Data last updated 19 August 2026.