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Cheap flights from Guam to London Heathrow Airport from £404

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
GUM — LHR
22 May — 29 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 22 April 2026.

Wed 3/600:50
GUM
-
LHR
1 stop22h 30m
Multiple Airlines
Fri 19/616:35
LHR
-
GUM
1 stop26h 00m
Multiple Airlines
Deal found 22/4£1,072
Mon 18/500:50
GUM
-
LHR
3 stops41h 20m
Multiple Airlines
Tue 26/506:00
LHR
-
GUM
3 stops37h 20m
Multiple Airlines
Deal found 21/4£1,176
Mon 2/1106:00
GUM
-
LHR
2 stops35h 30m
Multiple Airlines
Mon 16/1115:50
LHR
-
GUM
2 stops50h 30m
Multiple Airlines
Deal found 22/4£1,208
Mon 2/1116:50
GUM
-
LHR
1 stop33h 40m
Korean Air
Mon 16/1118:50
LHR
-
GUM
1 stop33h 45m
Korean Air
Deal found 22/4£1,479
Tue 19/517:20
GUM
-
LHR
1 stop34h 30m
Korean Air
Tue 26/513:25
LHR
-
GUM
1 stop41h 10m
Korean Air
Deal found 21/4£1,553

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 22 April 2026.

Round-trip from

£1,072

One-way from

£404
3/6-19/6
  • 3/6-19/6
  • 2 total stops
  • 48h 30m total
  • Guam to London
Search Deals
10/6
  • 10/6
  • 2 total stops
  • 39h 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 22 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
Fastest return journey

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Wed 3/6

00:50-14:20

1 stop22h 30m

London Heathrow

Fri 19/6

16:35-03:35

1 stop26h 00m

£1,072

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 18/5

00:50-09:10

3 stops41h 20m

London Heathrow

Tue 26/5

06:00-04:20

3 stops37h 20m

£1,176

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Tue 19/5

17:20-18:50

1 stop34h 30m

London Heathrow

Tue 26/5

13:25-15:35

1 stop41h 10m

£1,553
Cheapest one-way

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 30/8

04:40-19:50

2 stops48h 10m

£531

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 7/9

06:00-16:10

2 stops43h 10m

£626

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sat 29/8

06:00-20:25

3 stops47h 25m

£665
Fastest single journey

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Wed 10/6

00:50-14:20

1 stop22h 30m

£728

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sat 29/8

02:00-18:50

1 stop25h 50m

£940

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 6/9

02:00-18:50

1 stop25h 50m

£940

Flights are sorted by cheapest return flights first.

Deals found on 19/4

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.

  • 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.

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
Hounslow
Northampton
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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

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