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.

£703+ 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

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 21 September 2026.

Fri 13/1117:45 -

2 stops21h 15m

Tue 24/1103:30 -

2 stops46h 25m

Deal found 17/9£703

Mon 2/1117:45 -

2 stops21h 15m

Sun 8/1102:00 -

2 stops25h 50m

Deal found 18/9£767

Mon 2/1109:50 -

2 stops29h 10m

Sun 8/1102:00 -

2 stops49h 20m

Deal found 18/9£804

Mon 9/1110:30 -

2 stops28h 30m

Fri 20/1103:30 -

2 stops44h 30m

Deal found 19/9£807

Mon 9/1117:45 -

2 stops21h 15m

Fri 20/1102:20 -

2 stops26h 15m

Deal found 19/9£829

Sun 18/1011:00 -

2 stops31h 35m

Sun 25/1004:40 -

2 stops35h 50m

Deal found 18/9£936

Thu 24/911:35 -

2 stops31h 00m

Tue 29/904:40 -

2 stops35h 00m

Deal found 21/9£945

Sun 18/1016:35 -

1 stop23h 25m

Sat 24/1000:50 -

2 stops27h 45m

Deal found 18/9£962

Thu 24/916:35 -

1 stop23h 25m

Mon 28/900:50 -

2 stops26h 15m

Deal found 21/9£1,003

Fri 13/1109:50 -

2 stops32h 10m

Wed 25/1105:25 -

2 stops35h 05m

Deal found 17/9£1,169

Find flight deals from London to Guam

Round-trip from	£703

13/11-24/11
4 total stops
67h 40m total
London to Guam

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Fri 13/11

17:45-01:00

2 stops21h 15m

Tamuning Guam Intl

Tue 24/11

03:30-15:55

2 stops46h 25m

£703

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Mon 2/11

09:50-01:00

2 stops29h 10m

Tamuning Guam Intl

Sun 8/11

02:00-17:20

2 stops49h 20m

£804

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Mon 9/11

10:30-01:00

2 stops28h 30m

Tamuning Guam Intl

Fri 20/11

03:30-14:00

2 stops44h 30m

£807

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Sun 18/10

11:00-03:35

2 stops31h 35m

Tamuning Guam Intl

Sun 25/10

04:40-07:30

2 stops35h 50m

£936

Fastest return journey

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Mon 9/11

17:40-01:00

1 stop21h 20m

Tamuning Guam Intl

Fri 20/11

03:30-15:35

1 stop22h 05m

£946

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Mon 2/11

17:40-01:00

1 stop21h 20m

Tamuning Guam Intl

Sun 8/11

02:00-18:35

2 stops26h 35m

£1,002

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Wed 11/11

14:15-04:00

2 stops27h 45m

Tamuning Guam Intl

Sun 15/11

05:25-06:25

2 stops35h 00m

£1,152

LondonTamuning

LGW London Gatwick - GUM Tamuning Guam Intl

LGWGUM

London Gatwick

Fri 13/11

09:50-04:00

2 stops32h 10m

Tamuning Guam Intl

Wed 25/11

05:25-06:30

2 stops35h 05m

£1,169

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Sun 18/10

19:25-04:20

2 stops47h 55m

Tamuning Guam Intl

Sun 25/10

06:00-09:00

2 stops36h 00m

£1,226

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Wed 11/11

18:50-15:05

1 stop34h 15m

Tamuning Guam Intl

Sun 15/11

16:50-16:30

1 stop33h 40m

£1,329

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Sorted 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.

Reviews of airlines servicing Guam

Get a feel of what it's like to fly with Korean Air from London to Guam by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very Good

1,218 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Korean Air

8.4

Very Good

1,218 reviews

Korean Air

8.4

Very Good

1,218 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

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

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Manchester to Avalon flights

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Luton to Auckland flights

Stansted to Adelaide flights

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Edinburgh to Melbourne flights

Gatwick to Nadi flights

Edinburgh to Perth flights

Gatwick to Wellington flights

Newcastle upon Tyne to Perth flights

Birmingham to Melbourne flights

London City to Christchurch 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.

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Cheap flights from London to Guam from £703

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. 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 21 September 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 21 September 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 21 September 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 21 September 2026.

Last-minute flights from London to GuamDiscover last-minute flight deals from London to Guam. Data last updated 21 September 2026 and is based on user searches.

Discover last-minute flight deals from London to Guam. Data last updated 21 September 2026 and is based on user searches.

Find flight deals from London to Guam

Round-trip 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

Reviews of airlines servicing Guam

Get insights into the airlines that provide service to Guam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Guam. Reviews last updated 21 September 2026.

Get a feel of what it's like to fly with Korean Air from London to Guam by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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 21 September 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 21 September 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 21 September 2026.

Last-minute flights from London to Guam
Discover last-minute flight deals from London to Guam. Data last updated 21 September 2026 and is based on user searches.