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Cheap flights from London to Guam from £428

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — GUM
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

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 8 January 2026.

Round-trip from

£993

One-way from

£428

Popular in

December

Cheapest in

November

Average price

£1,039
1/4-17/4
  • 1/4-17/4
  • 4 total stops
  • 60h 25m total
  • London to Guam
Search Deals
26/1
  • 26/1
  • 3 total stops
  • 32h 00m total
  • London to Guam
Search Deals
Highest demand for flights based on searches. 34% potential increase in price (£463 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 22% potential price decrease (£166 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 8 January 2026.

Wed 1/406:30LHR - GUM
2 stops32h 25mMultiple Airlines
Fri 17/403:00GUM - LHR
2 stops28h 00mMultiple Airlines
Deal found 6/1£993
Tue 24/218:50LHR - GUM
1 stop18h 15mKorean Air
Fri 27/201:00GUM - LHR
1 stop25h 30mKorean Air
Deal found 5/1£1,088
Mon 9/218:50LHR - GUM
1 stop20h 20mMultiple Airlines
Wed 11/202:40GUM - LHR
2 stops28h 10mMultiple Airlines
Deal found 5/1£1,113
Thu 12/206:30LHR - GUM
2 stops30h 35mMultiple Airlines
Sat 21/201:00GUM - LHR
2 stops31h 00mMultiple Airlines
Deal found 5/1£1,139
Mon 2/318:50LHR - GUM
1 stop33h 45mKorean Air
Fri 20/316:50GUM - LHR
1 stop33h 40mKorean Air
Deal found 5/1£1,143
Fri 6/318:50LHR - GUM
1 stop18h 15mKorean Air
Sun 8/316:50GUM - LHR
1 stop33h 40mKorean Air
Deal found 4/1£1,149
Tue 18/818:10LHR - GUM
2 stops59h 30mJapan Airlines
Tue 25/816:40GUM - LHR
2 stops25h 30mJapan Airlines
Deal found 6/1£1,164
Tue 18/819:35LHR - GUM
1 stop34h 40mKorean Air
Tue 25/817:00GUM - LHR
1 stop33h 20mKorean Air
Deal found 6/1£1,185
Fri 13/318:50LHR - GUM
1 stop18h 15mKorean Air
Tue 17/316:50GUM - LHR
1 stop33h 40mKorean Air
Deal found 4/1£1,195
Tue 21/714:55LGW - GUM
2 stops28h 25mMultiple Airlines
Sat 25/706:00GUM - LGW
2 stops34h 20mMultiple Airlines
Deal found 5/1£1,266
Thu 12/206:25LGW - GUM
3 stops35h 35mMultiple Airlines
Sun 22/205:45GUM - LGW
3 stops47h 55mMultiple Airlines
Deal found 5/1£1,391
Wed 1/410:25LGW - GUM
2 stops28h 30mMultiple Airlines
Fri 17/403:00GUM - LGW
2 stops39h 25mMultiple Airlines
Deal found 6/1£1,415

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 8 January 2026.
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

LHR - GUM

LHRGUM

London Heathrow

Wed 1/4

06:30-23:55

2 stops32h 25m

Tamuning Guam Intl

Fri 17/4

03:00-22:00

2 stops28h 00m

£993

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 2/3

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Thu 19/3

01:00-16:30

1 stop25h 30m

£1,090

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 24/2

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Sat 28/2

16:50-16:30

1 stop33h 40m

£1,090

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 6/3

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Sun 8/3

16:50-16:30

1 stop33h 40m

£1,149

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 9/2

18:50-01:10

1 stop20h 20m

Tamuning Guam Intl

Wed 11/2

02:40-18:05

1 stop25h 25m

£1,171

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 13/3

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Tue 17/3

16:50-16:30

1 stop33h 40m

£1,195

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 6/3

18:50-01:10

1 stop20h 20m

Tamuning Guam Intl

Sun 8/3

16:50-09:10

2 stops26h 20m

£1,248

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Thu 12/2

06:25-04:00

3 stops35h 35m

Tamuning Guam Intl

Sun 22/2

05:45-19:40

3 stops47h 55m

£1,391

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Wed 1/4

10:25-23:55

2 stops28h 30m

Tamuning Guam Intl

Fri 17/4

03:00-09:25

2 stops39h 25m

£1,415

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Mon 26/1

07:00-01:00

3 stops32h 00m

£428

Flights are sorted by cheapest return flights first.

Deals found on 5/1

Showing 1-10 of 21 results
1
2
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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.

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 8 January 2026.
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
1,671 reviews
Check prices

Crew

8.7

Comfort

8.2

Entertainment

7.8

Boarding

8.4

Food

7.7

Overall

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.
Japan Airlines
8.3
Very Good
1,671 reviews
Japan Airlines
8.3
Very Good
1,671 reviews
Check prices

Crew

8.7

Comfort

8.2

Entertainment

7.8

Boarding

8.4

Food

7.7

Overall

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

BKK - NRT

Everything was was a great experience, the staff was very friendly and always had a smile on the face.

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.

  • How long is the flight from London to Guam?

    There are many flights that can get you from London to Guam in 18h 15m. Fly via Korean Air 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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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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