How long is the flight from London to Guam?

There are many flights that can get you from London to Guam in 27h 45m. Fly via Philippine Airlines to get the fastest option. Airlines will cover a distance of 7483 mi.

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.

£649+ 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 10 October 2026.

Fri 20/1117:45 -

2 stops21h 15m

Thu 26/1102:00 -

2 stops25h 50m

Deal found 6/10£790

Fri 30/1007:00 -

3 stops32h 10m

Thu 19/1102:20 -

2 stops25h 10m

Deal found 7/10£800

Fri 9/1010:00 -

3 stops33h 20m

Sun 11/1000:50 -

2 stops27h 30m

Deal found 7/10£1,103

Wed 11/1114:15 -

2 stops27h 45m

Sun 15/1105:25 -

2 stops35h 00m

Deal found 7/10£1,151

Mon 2/1114:15 -

2 stops27h 45m

Tue 17/1105:25 -

2 stops35h 00m

Deal found 7/10£1,154

Find flight deals from London to Guam

Round-trip from	£790
One-way from	£649

20/11-26/11
4 total stops
47h 05m total
London to Guam

Search Deals

4/4-31/12
3 total stops
28h 35m total
London to Guam

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Sun 4/4

15:05-04:20

2 stops28h 15m

Tamuning Guam Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

£721

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Wed 3/2

11:30-01:00

2 stops27h 30m

Tamuning Guam Intl

Tue 16/2

02:00-22:55

2 stops30h 55m

£992

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

£1,151

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Tue 27/10

14:15-04:00

2 stops27h 45m

Tamuning Guam Intl

Wed 18/11

05:25-06:25

2 stops35h 00m

£1,258

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Sun 1/11

14:15-04:00

2 stops27h 45m

Tamuning Guam Intl

Tue 17/11

05:25-06:25

2 stops35h 00m

£1,258

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

£1,330

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Sat 31/10

14:15-04:00

2 stops27h 45m

Tamuning Guam Intl

Tue 17/11

05:25-06:25

2 stops35h 00m

£1,336

LondonTamuning

LHR London Heathrow - GUM Tamuning Guam Intl

LHRGUM

London Heathrow

Sat 31/10

14:15-04:00

2 stops27h 45m

Tamuning Guam Intl

Mon 23/11

05:25-06:25

2 stops35h 00m

£1,366

Flights are sorted by cheapest return flights first.

Deals found on 7/10

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.

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

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

1,217 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

1,217 reviews

Korean Air

8.4

Very Good

1,217 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

How long is the flight from London to Guam?
There are many flights that can get you from London to Guam in 27h 45m. Fly via Philippine Airlines to get the fastest option. Airlines will cover a distance of 7483 mi.
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.

See more FAQs

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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 £649

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/4. 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 10 October 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 10 October 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 10 October 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 10 October 2026.

Last-minute flights from London to GuamDiscover last-minute flight deals from London to Guam. Data last updated 10 October 2026 and is based on user searches.

Discover last-minute flight deals from London to Guam. Data last updated 10 October 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 10 October 2026.

Search for one-way flight options from London to Guam. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.

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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 10 October 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

How long is the flight from London to Guam?

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 10 October 2026.

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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 10 October 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 10 October 2026.

Last-minute flights from London to Guam
Discover last-minute flight deals from London to Guam. Data last updated 10 October 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 10 October 2026.