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Cheap flights from London to Guam from £833

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — GUM
31 Aug — 7 Sep1
1 adult

Cheap flight deals from London to Guam

Keep the following information in mind while searching for London to Guam flight deals. Data was last updated 26 August 2025.

Round-trip from

£833

Popular in

October

Cheapest in

June

Average price

£1,018
12/9-22/9
  • 12/9-22/9
  • 5 total stops
  • 69h 40m total
  • London to Guam
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£27 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from London to Guam

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 26 August 2025.

Fri 12/912:35LGW - GUM
2 stops28h 55mMultiple Airlines
Mon 22/903:40GUM - LGW
3 stops40h 45mMultiple Airlines
Deal found 24/8£833
Fri 12/915:20LHR - GUM
2 stops22h 50mMultiple Airlines
Mon 22/903:40GUM - LHR
3 stops26h 40mMultiple Airlines
Deal found 24/8£972
Wed 5/1118:50LHR - GUM
1 stop20h 40mMultiple Airlines
Wed 12/1100:20GUM - LHR
2 stops27h 35mMultiple Airlines
Deal found 24/8£981
Fri 26/1217:40LHR - GUM
2 stops21h 50mMultiple Airlines
Thu 22/102:30GUM - LHR
2 stops25h 20mMultiple Airlines
Deal found 24/8£1,021
Fri 26/1214:05LGW - GUM
2 stops27h 55mMultiple Airlines
Fri 23/105:45GUM - LGW
2 stops34h 10mMultiple Airlines
Deal found 24/8£1,253

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Guam that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 26 August 2025.
Use the filters below to find and compare flights from London to Guam that are best for you.

Fly from

London

Fly to

Guam

Route

Depart

Return

Price

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Fri 12/9

12:35-02:30

2 stops28h 55m

Tamuning Guam Intl

Mon 22/9

03:40-11:25

3 stops40h 45m

£833

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 12/9

15:20-23:10

2 stops22h 50m

Tamuning Guam Intl

Mon 22/9

03:40-21:20

3 stops26h 40m

£972

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Wed 5/11

18:50-01:30

1 stop20h 40m

Tamuning Guam Intl

Wed 12/11

00:20-17:55

2 stops27h 35m

£981

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 26/12

17:40-01:30

2 stops21h 50m

Tamuning Guam Intl

Thu 22/1

02:30-17:50

2 stops25h 20m

£1,021

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Fri 26/12

14:05-04:00

2 stops27h 55m

Tamuning Guam Intl

Fri 23/1

05:45-05:55

2 stops34h 10m

£1,253

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Sun 22/2

14:05-04:00

2 stops27h 55m

Tamuning Guam Intl

Sun 8/3

05:45-05:55

2 stops34h 10m

£5,209

Flights are sorted by cheapest return flights first.

Deals found on 24/8

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.
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

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

Find hourly flight availability from London to Guam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 August 2025.

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.

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 26 August 2025.
Get a feel of what it's like to fly with Japan Airlines 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.
Japan Airlines
8.3
Very Good
1,552 reviews
Check prices

Comfort

8.2

Crew

8.7

Food

7.7

Overall

8.3

Boarding

8.4

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

I thought it will be Japan Airlines on the way back to New York too. So I was soooo disappointed. I never expected that it will be American Airlines.
Japan Airlines
8.3
Very Good
1,552 reviews
Japan Airlines
8.3
Very Good
1,552 reviews
Check prices

Comfort

8.2

Crew

8.7

Food

7.7

Overall

8.3

Boarding

8.4

Entertainment

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

HND - JFK

I thought it will be Japan Airlines on the way back to New York too. So I was soooo disappointed. I never expected that it will be American Airlines.

Related info for your journey

Find useful and relevant information for your journey from London to Guam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

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Top 2 airlines flying from London to Guam

Discover the top 2 airlines that operate flights from London to Guam. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 26 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest£817Average£906FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Korean AirCheapest£1,024Average£1,105FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

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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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