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.

£478+ 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 22 August 2026.

Sat 19/911:35 -

2 stops28h 25m

Fri 25/900:50 -

2 stops47h 10m

Deal found 20/8£882

Sun 4/1012:35 -

2 stops30h 00m

Sat 17/1004:40 -

2 stops34h 55m

Deal found 20/8£892

Tue 6/1016:35 -

1 stop26h 00m

Mon 12/1000:50 -

2 stops26h 15m

Deal found 21/8£913

Thu 1/1005:15 -

3 stops37h 20m

Thu 8/1004:40 -

3 stops45h 10m

Deal found 17/8£920

Sun 18/1011:00 -

2 stops31h 35m

Thu 29/1005:40 -

2 stops34h 50m

Deal found 19/8£927

Mon 7/916:35 -

1 stop23h 25m

Thu 10/902:20 -

2 stops26h 00m

Deal found 18/8£935

Mon 5/1011:40 -

2 stops30h 55m

Thu 15/1004:40 -

2 stops34h 50m

Deal found 20/8£945

Thu 1/1007:30 -

2 stops35h 05m

Thu 8/1004:40 -

2 stops49h 00m

Deal found 17/8£969

Sat 17/1006:40 -

3 stops35h 55m

Wed 28/1002:20 -

2 stops25h 35m

Deal found 19/8£969

Mon 5/1019:35 -

1 stop23h 00m

Wed 14/1000:50 -

1 stop25h 30m

Deal found 20/8£981

Sun 18/1012:35 -

2 stops30h 00m

Wed 28/1002:20 -

2 stops25h 35m

Deal found 19/8£983

Sat 19/916:35 -

1 stop23h 25m

Fri 25/900:50 -

1 stop22h 30m

Deal found 20/8£1,009

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 22 August 2026.

Sat 19/911:35 -

2 stops28h 25m

Fri 25/900:50 -

2 stops47h 10m

Deal found 20/8£882

Sat 17/1019:35 -

1 stop35h 00m

Wed 28/1002:40 -

1 stop23h 50m

Deal found 19/8£1,291

Mon 7/915:05 -

2 stops28h 15m

Fri 11/906:00 -

2 stops33h 25m

Deal found 18/8£1,361

Sun 4/1012:35 -

2 stops30h 00m

Sat 17/1004:40 -

2 stops34h 55m

Deal found 20/8£892

Thu 1/1005:15 -

3 stops37h 20m

Thu 8/1004:40 -

3 stops45h 10m

Deal found 17/8£920

Sun 18/1011:00 -

2 stops31h 35m

Thu 29/1005:40 -

2 stops34h 50m

Deal found 19/8£927

Mon 5/1011:40 -

2 stops30h 55m

Thu 15/1004:40 -

2 stops34h 50m

Deal found 20/8£945

Mon 7/919:35 -

1 stop19h 20m

Fri 11/917:20 -

1 stop33h 00m

Deal found 18/8£1,323

Tue 6/1009:30 -

2 stops33h 05m

Mon 12/1002:50 -

2 stops26h 35m

Deal found 21/8£1,024

Sun 4/1015:05 -

2 stops52h 15m

Fri 16/1000:50 -

2 stops27h 30m

Deal found 20/8£1,032

Sat 17/1006:00 -

3 stops36h 35m

Thu 29/1005:40 -

2 stops34h 50m

Deal found 19/8£1,050

Sat 19/916:35 -

1 stop23h 25m

Sat 26/904:40 -

2 stops46h 10m

Deal found 20/8£1,078

Thu 1/1009:30 -

3 stops33h 50m

Thu 8/1006:00 -

3 stops34h 00m

Deal found 17/8£1,109

Sun 27/1211:35 -

2 stops27h 25m

Fri 15/116:50 -

3 stops32h 15m

Deal found 21/8£1,129

Sun 27/1217:40 -

2 stops21h 20m

Fri 15/116:50 -

2 stops35h 20m

Deal found 21/8£1,150

Sun 18/1021:00 -

2 stops43h 00m

Thu 29/1016:50 -

1 stop31h 30m

Deal found 19/8£1,246

Find flight deals from London to Guam

Round-trip from	£882
One-way from	£478

19/9-25/9
4 total stops
75h 35m 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

Sat 19/9

11:35-01:00

2 stops28h 25m

Tamuning Guam Intl

Fri 25/9

00:50-15:00

2 stops47h 10m

£882

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Sun 4/10

12:35-03:35

2 stops30h 00m

Tamuning Guam Intl

Sat 17/10

04:40-06:35

2 stops34h 55m

£892

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

£920

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Sun 18/10

11:00-03:35

2 stops31h 35m

Tamuning Guam Intl

Thu 29/10

05:40-06:30

2 stops34h 50m

£927

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Mon 5/10

11:40-03:35

2 stops30h 55m

Tamuning Guam Intl

Thu 15/10

04:40-06:30

2 stops34h 50m

£945

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Tue 6/10

09:30-03:35

2 stops33h 05m

Tamuning Guam Intl

Mon 12/10

02:50-20:25

2 stops26h 35m

£1,024

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Sun 4/10

15:05-04:20

2 stops52h 15m

Tamuning Guam Intl

Fri 16/10

00:50-19:20

2 stops27h 30m

£1,032

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Sat 17/10

06:00-03:35

3 stops36h 35m

Tamuning Guam Intl

Thu 29/10

05:40-06:30

2 stops34h 50m

£1,050

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Sat 19/9

16:35-01:00

1 stop23h 25m

Tamuning Guam Intl

Sat 26/9

04:40-17:50

2 stops46h 10m

£1,078

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Thu 1/10

09:30-04:20

3 stops33h 50m

Tamuning Guam Intl

Thu 8/10

06:00-07:00

3 stops34h 00m

£1,109

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 17 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.

LHR-GUM

LGW-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

LHR-GUM

LGW-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

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Newcastle upon Tyne to Perth flights

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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.

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Cheap flights from London to Guam from £478

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 22 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 22 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 22 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 22 August 2026.

Last-minute flights from London to GuamDiscover last-minute flight deals from London to Guam. Data last updated 22 August 2026 and is based on user searches.

Discover last-minute flight deals from London to Guam. Data last updated 22 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 22 August 2026.

Search for one-way flight options from London to Guam. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Find flight deals from London to Guam

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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 22 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?

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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 22 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 22 August 2026.

Last-minute flights from London to Guam
Discover last-minute flight deals from London to Guam. Data last updated 22 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 22 August 2026.