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Cheap flights from London to Guam from £764

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — GUM
22 Apr — 29 Apr1
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 17 April 2025.

Round-trip from

£764

Popular in

October

Cheapest in

June

Average price

£966
12/6-25/6
  • 12/6-25/6
  • 4 total stops
  • 83h 35m total
  • London to Guam
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 17 April 2025.

Thu 12/618:00LGW - GUM
2 stops37h 05mMultiple Airlines
Wed 25/617:10GUM - LGW
2 stops46h 30mMultiple Airlines
Deal found 16/4£764
Fri 30/520:25LHR - GUM
2 stops33h 05mMultiple Airlines
Fri 6/615:30GUM - LHR
2 stops35h 15mMultiple Airlines
Deal found 14/4£811
Fri 30/519:35LHR - GUM
1 stop34h 40mKorean Air
Fri 6/617:00GUM - LHR
1 stop33h 20mKorean Air
Deal found 14/4£1,177
Wed 23/715:20LHR - GUM
2 stops38h 20mJapan Airlines
Fri 5/916:40GUM - LHR
2 stops33h 25mJapan Airlines
Deal found 16/4£1,252
Fri 25/719:00LHR - GUM
1 stop35h 45mANA
Fri 5/907:30GUM - LHR
2 stops41h 50mANA
Deal found 16/4£5,538

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 17 April 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

Thu 12/6

18:00-16:05

2 stops37h 05m

Tamuning Guam Intl

Wed 25/6

17:10-06:40

2 stops46h 30m

£764

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 30/5

20:25-14:30

2 stops33h 05m

Tamuning Guam Intl

Fri 6/6

15:30-17:45

2 stops35h 15m

£811

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 30/5

19:35-15:15

1 stop34h 40m

Tamuning Guam Intl

Fri 6/6

17:00-17:20

1 stop33h 20m

£1,177

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Wed 23/7

15:20-14:40

2 stops38h 20m

Tamuning Guam Intl

Fri 5/9

16:40-17:05

2 stops33h 25m

£1,252

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 25/7

19:00-15:45

1 stop35h 45m

Tamuning Guam Intl

Fri 5/9

07:30-16:20

2 stops41h 50m

£5,538

Flights are sorted by cheapest return flights first.

Deals found on 16/4

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 17 April 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.

Rainfall in Guam by month

Plan your trip to Guam by taking into account the average rainfall totals by month.

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.

Temperature in Guam by month

Plan your trip to Guam by taking into account the average temperature totals by month.

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).

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 17 April 2025.
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,064 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very Good
1,440 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very Good
844 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from London to Guam

Discover the top airline 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 17 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest£831Average£885FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights

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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.

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