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Cheap flights from the United Kingdom to Guam from £349

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GUM
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from United Kingdom to Guam

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Guam
Explore the most affordable flight options available from United Kingdom to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2025.

Sun 9/1121:30LHR - GUM
2 stops30h 50mMultiple Airlines
Tue 18/1100:20GUM - LHR
2 stops52h 15mMultiple Airlines
Deal found 3/11£518
Sun 9/1107:25LGW - GUM
2 stops29h 35mMultiple Airlines
Tue 18/1100:20GUM - LGW
3 stops45h 45mMultiple Airlines
Deal found 3/11£747
Mon 3/1109:00LGW - GUM
2 stops43h 35mMultiple Airlines
Mon 10/1116:35GUM - LGW
2 stops47h 20mMultiple Airlines
Deal found 2/11£1,515

Cheap flight deals from United Kingdom to Guam

Keep the following information in mind while searching for United Kingdom to Guam flight deals. Data was last updated 5 November 2025.

Round-trip from

£629

One-way from

£349

Popular in

October

Cheapest in

June

Average price

£1,026
3/3-16/3
  • 3/3-16/3
  • 4 total stops
  • 57h 40m total
  • United Kingdom to Guam
Search Deals
9/11
  • 9/11
  • 2 total stops
  • 30h 50m total
  • United Kingdom to Guam
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 5 November 2025.
Use the filters below to find and compare flights from the United Kingdom to Guam that are best for you.

Fly from

United Kingdom

Fly to

Guam

Route

Depart

Return

Price

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Tue 3/3

11:10-01:10

2 stops28h 00m

Tamuning Guam Intl

Mon 16/3

02:40-22:20

2 stops29h 40m

£629

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Sat 24/1

10:30-01:10

2 stops28h 40m

Tamuning Guam Intl

Mon 26/1

02:40-14:20

3 stops45h 40m

£718

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Tue 3/3

10:30-01:10

3 stops28h 40m

Tamuning Guam Intl

Mon 16/3

02:40-14:20

3 stops45h 40m

£809

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 24/1

18:30-14:35

1 stop34h 05m

Tamuning Guam Intl

Tue 27/1

16:35-06:25

1 stop23h 50m

£887

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 23/2

20:10-01:10

1 stop19h 00m

Tamuning Guam Intl

Fri 6/3

02:40-18:35

2 stops25h 55m

£939

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 24/1

18:50-01:10

1 stop20h 20m

Tamuning Guam Intl

Mon 26/1

02:40-16:30

1 stop23h 50m

£1,096

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 2/3

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Fri 20/3

16:50-16:30

1 stop33h 40m

£1,109

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Tue 24/2

14:05-14:35

2 stops38h 30m

Tamuning Guam Intl

Sat 28/2

16:35-12:35

2 stops30h 00m

£1,462

ManchesterTamuning

MAN - GUM

MANGUM

Manchester

Mon 16/3

06:00-14:35

2 stops46h 35m

Tamuning Guam Intl

Wed 18/3

01:00-22:00

2 stops31h 00m

£1,485

LondonTamuning

LGW - GUM

LGWGUM

London Gatwick

Thu 12/2

11:05-04:00

2 stops30h 55m

Tamuning Guam Intl

Sat 28/2

05:45-06:55

2 stops35h 10m

£3,404

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 13 results
1
2

Best time to book a flight from United Kingdom to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from United Kingdom 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 the United Kingdom to Guam

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

Find hourly flight availability from United Kingdom 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 5 November 2025.

It’s optimal to fly from United Kingdom to Guam in the evening. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight at midday.

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 5 November 2025.
Get a feel of what it's like to fly with Korean Air and Japan Airlines from the United Kingdom 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.
Korean Air
8.4
Very Good
1,160 reviews
Check prices

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Comfort

8.3

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
1,160 reviews
Korean Air
8.4
Very Good
1,160 reviews
Check prices

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Comfort

8.3

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
1,604 reviews
Korean Air
8.4
Very Good
1,160 reviews
Check prices

Entertainment

8.2

Food

8.1

Boarding

8.5

Overall

8.4

Comfort

8.3

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 United Kingdom 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 United Kingdom to Guam?

    For as low as £887, Japan Airlines can have you in Guam from United Kingdom in 34h 05m. United Kingdom and Guam are separated by a distance of 7483 mi. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from United Kingdom to Guam that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Guam flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Guam?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Guam.

  • Can I find deals for business class flights from United Kingdom to Guam?

    Yes. Cheapflights offers flight deals from United Kingdom 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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Top 2 airlines flying from United Kingdom to Guam

Discover the top 2 airlines that operate flights from United Kingdom 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 5 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest£843Average£903FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Korean AirCheapest£1,056Average£1,140FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

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 United Kingdom to Guam?

Deals for United Kingdom to Guam flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Guam?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Guam from United Kingdom.

Can Cheapflights find flights from United Kingdom to Guam with no change fees?

Yes, we can. To see specific flights from United Kingdom to Guam with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from United Kingdom to Guam become cheaper?

Yes! Start tracking prices for United Kingdom to Guam flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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