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Cheap flights from London to Guam from £702

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — GUM
25 Jan — 1 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Guam

Enter your travel dates to find the best prices.

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 26 December 2025.

Tue 10/308:50LHR - GUM
2 stops28h 15mMultiple Airlines
Fri 13/301:00GUM - LHR
2 stops47h 30mMultiple Airlines
Deal found 24/12£702
Mon 2/318:50LHR - GUM
1 stop33h 45mKorean Air
Thu 19/301:00GUM - LHR
1 stop25h 30mKorean Air
Deal found 24/12£1,089
Tue 10/310:30LGW - GUM
2 stops26h 35mMultiple Airlines
Fri 13/301:00GUM - LGW
2 stops39h 30mMultiple Airlines
Deal found 24/12£787
Tue 24/218:50LHR - GUM
1 stop18h 15mKorean Air
Sat 28/216:50GUM - LHR
1 stop33h 40mKorean Air
Deal found 24/12£1,089
Tue 10/318:50LHR - GUM
1 stop18h 15mKorean Air
Thu 26/316:50GUM - LHR
1 stop33h 40mKorean Air
Deal found 25/12£1,173
Tue 10/308:50LHR - GUM
2 stops28h 15mMultiple Airlines
Wed 25/301:00GUM - LHR
2 stops39h 40mMultiple Airlines
Deal found 25/12£1,186
Wed 4/318:50LHR - GUM
1 stop33h 45mKorean Air
Sat 7/301:00GUM - LHR
1 stop25h 30mKorean Air
Deal found 23/12£1,195
Fri 13/318:50LHR - GUM
1 stop33h 45mKorean Air
Tue 17/316:50GUM - LHR
1 stop33h 40mKorean Air
Deal found 25/12£1,197

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 26 December 2025.

Round-trip from

£702

Popular in

December

Cheapest in

November

Average price

£1,261
10/3-13/3
  • 10/3-13/3
  • 4 total stops
  • 75h 45m total
  • London to Guam
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 26 December 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

LHR - GUM

LHRGUM

London Heathrow

Tue 10/3

08:50-23:05

2 stops28h 15m

Tamuning Guam Intl

Fri 13/3

01:00-14:30

2 stops47h 30m

£702

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Tue 10/3

10:30-23:05

2 stops26h 35m

Tamuning Guam Intl

Fri 13/3

01:00-06:30

2 stops39h 30m

£787

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 2/3

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Thu 19/3

01:00-16:30

1 stop25h 30m

£1,089

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 24/2

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Sat 28/2

16:50-16:30

1 stop33h 40m

£1,089

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 10/3

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Thu 26/3

16:50-16:30

1 stop33h 40m

£1,173

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 10/3

08:50-23:05

2 stops28h 15m

Tamuning Guam Intl

Wed 25/3

01:00-06:40

2 stops39h 40m

£1,186

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Wed 4/3

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Sat 7/3

01:00-16:30

1 stop25h 30m

£1,195

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 13/3

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Tue 17/3

16:50-16:30

1 stop33h 40m

£1,197

Flights are sorted by cheapest return flights first.

Deals found on 24/12

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 December 2025.

It’s typically best to fly out from London to Guam in the morning. Doing so could potentially save you 40% on the flight price compared to flying at midday, which is usually more expensive.

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 December 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
1,662 reviews
Check prices

Comfort

8.2

Boarding

8.4

Food

7.7

Overall

8.3

Crew

8.7

Entertainment

7.8

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
1,662 reviews
Japan Airlines
8.3
Very Good
1,662 reviews
Check prices

Comfort

8.2

Boarding

8.4

Food

7.7

Overall

8.3

Crew

8.7

Entertainment

7.8

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 33h 45m. 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?

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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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