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Cheap flights from Guam to London Heathrow Airport from £454

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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
GUM — LHR
11 May — 18 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Guam to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Guam to Heathrow
Explore the most affordable flight options available from Guam to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 April 2026.

Fri 22/500:50
GUM
-
LHR
2 stops25h 20m
Multiple Airlines
Sat 30/506:30
LHR
-
GUM
2 stops32h 15m
Multiple Airlines
Deal found 8/4£1,191
Mon 14/904:40
GUM
-
LHR
3 stops34h 45m
Multiple Airlines
Sat 19/916:35
LHR
-
GUM
1 stop26h 00m
Multiple Airlines
Deal found 9/4£1,243
Sun 13/902:00
GUM
-
LHR
1 stop24h 20m
Korean Air
Sat 19/919:35
LHR
-
GUM
1 stop19h 20m
Korean Air
Deal found 9/4£1,519

Find flight deals from Guam to Heathrow

Keep the following information in mind while searching for Guam to Heathrow flight deals. Data was last updated 11 April 2026.

Round-trip from

£1,191

One-way from

£454
22/5-30/5
  • 22/5-30/5
  • 4 total stops
  • 57h 35m total
  • Guam to London
Search Deals
16/5
  • 16/5
  • 2 total stops
  • 47h 10m total
  • Guam to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Guam to Heathrow 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 11 April 2026.
Use the filters below to find and compare flights from Guam to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Fri 22/5

00:50-17:10

2 stops25h 20m

London Heathrow

Sat 30/5

06:30-23:45

2 stops32h 15m

£1,191

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 14/9

04:40-06:55

3 stops35h 15m

London Heathrow

Sat 19/9

16:35-01:50

2 stops24h 15m

£1,266
Fastest return journey

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 13/9

02:00-17:20

1 stop24h 20m

London Heathrow

Sat 19/9

19:35-23:55

1 stop19h 20m

£1,519
Cheapest one-way

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 8/6

04:40-16:40

3 stops45h 00m

£498

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 20/9

00:50-06:25

3 stops38h 35m

£569

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 17/5

06:00-20:25

3 stops47h 25m

£588

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 17/5

17:20-18:50

1 stop34h 30m

£945

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 7/9

17:20-18:50

1 stop34h 30m

£945
Fastest single journey

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 20/9

02:00-17:20

1 stop24h 20m

£945

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Sorted by cheapest first

Best time to book a flight from Guam to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Guam 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 Guam to London Heathrow Airport
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 Guam to Heathrow. 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 Guam to London Heathrow Airport?

    A quick flight from Guam to London Heathrow Airport can take about 24h 20m. Korean Air provides one of the quickest options available for as low as £1,519. Airlines will cover a distance of 7483 mi.

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

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

  • How can I find direct flights from Guam to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Guam to Heathrow 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Northampton
Hounslow
Gatwick
Luton
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Chelmsford
Ipswich
Southend-on-Sea

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How does Cheapflights help users find flights from Guam to Heathrow?

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

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Guam to Heathrow flexibly with Cheapflights today.

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