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Cheap flights from London to Guam from £661

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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — GUM
12 Jun — 19 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Guam

Enter your travel dates to find the best prices.

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 13 May 2026.

Tue 23/609:00
LGW
-
GUM
2 stops44h 35m
Multiple Airlines
Tue 30/616:35
GUM
-
LGW
2 stops47h 05m
Multiple Airlines
Deal found 9/5£1,022
Tue 23/608:25
LHR
-
GUM
2 stops45h 10m
Multiple Airlines
Tue 30/616:35
GUM
-
LHR
2 stops46h 50m
Multiple Airlines
Deal found 9/5£1,055
Thu 21/508:25
LHR
-
GUM
2 stops45h 15m
Multiple Airlines
Mon 25/516:40
GUM
-
LHR
2 stops29h 35m
Multiple Airlines
Deal found 12/5£1,148
Mon 28/919:35
LHR
-
GUM
1 stop19h 20m
Korean Air
Sun 11/1002:00
GUM
-
LHR
1 stop24h 20m
Korean Air
Deal found 12/5£1,216
Sat 28/1118:50
LHR
-
GUM
1 stop33h 45m
Korean Air
Wed 2/1216:50
GUM
-
LHR
1 stop33h 40m
Korean Air
Deal found 7/5£1,334
Sun 2/817:55
LGW
-
GUM
2 stops24h 40m
Multiple Airlines
Sat 19/904:40
GUM
-
LGW
2 stops35h 15m
Multiple Airlines
Deal found 11/5£1,849
Fri 18/1210:00
LGW
-
GUM
2 stops42h 35m
Multiple Airlines
Mon 21/1216:50
GUM
-
LGW
2 stops50h 10m
Multiple Airlines
Deal found 11/5£4,105

Find flight deals from London to Guam

Keep the following information in mind while searching for London to Guam flight deals. Data was last updated 13 May 2026.

Round-trip from

£1,022

One-way from

£661
23/6-30/6
  • 23/6-30/6
  • 4 total stops
  • 91h 40m total
  • London to Guam
Search Deals
22/9
  • 22/9
  • 3 total stops
  • 44h 40m total
  • London to Guam
Search Deals

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 13 May 2026.
Use the filters below to find and compare flights from London to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Tue 23/6

09:00-14:35

2 stops44h 35m

Tamuning Guam Intl

Tue 30/6

16:35-06:40

2 stops47h 05m

£1,022

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 23/6

08:25-14:35

2 stops45h 10m

Tamuning Guam Intl

Tue 30/6

16:35-06:25

2 stops46h 50m

£1,055

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 28/9

19:35-15:35

1 stop35h 00m

Tamuning Guam Intl

Mon 12/10

17:20-21:25

2 stops37h 05m

£1,518

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 2/8

19:35-15:35

1 stop35h 00m

Tamuning Guam Intl

Sat 19/9

17:20-17:20

1 stop33h 00m

£1,693

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 2/8

21:45-04:20

2 stops45h 35m

Tamuning Guam Intl

Sat 19/9

06:00-18:45

2 stops45h 45m

£1,774
Fastest return journey

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Sun 2/8

17:55-03:35

2 stops24h 40m

Tamuning Guam Intl

Sat 19/9

04:40-06:55

2 stops35h 15m

£1,849
Cheapest one-way

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 22/9

22:40-04:20

3 stops44h 40m

£661
Fastest single journey

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 22/9

13:25-15:35

1 stop41h 10m

£2,274

Flights are sorted by cheapest return flights first.

Deals found on 10/5

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

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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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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