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Cheap flights from Guam to London Heathrow Airport from £391

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 28/6. Fares are subject to change and may not be available on all flights or dates of travel.
GUM — LHR
11 Jul — 18 Jul1
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 June 2026.

Tue 16/602:00
GUM
-
LHR
2 stops29h 00m
Multiple Airlines
Tue 23/606:30
LHR
-
GUM
2 stops24h 05m
Multiple Airlines
Deal found 10/6£873
Fri 12/602:00
GUM
-
LHR
2 stops29h 00m
Multiple Airlines
Tue 30/606:30
LHR
-
GUM
2 stops33h 30m
Multiple Airlines
Deal found 6/6£972
Mon 20/700:50
GUM
-
LHR
1 stop22h 30m
Multiple Airlines
Tue 28/716:35
LHR
-
GUM
1 stop26h 00m
Multiple Airlines
Deal found 6/6£1,237
Thu 9/706:00
GUM
-
LHR
2 stops33h 25m
Philippine Airlines
Thu 23/715:05
LHR
-
GUM
2 stops28h 15m
Philippine Airlines
Deal found 7/6£1,434
Mon 8/602:00
GUM
-
LHR
1 stop24h 20m
Korean Air
Wed 24/619:35
LHR
-
GUM
1 stop35h 00m
Korean Air
Deal found 8/6£1,491
Thu 25/602:00
GUM
-
LHR
1 stop24h 20m
Korean Air
Fri 3/713:25
LHR
-
GUM
1 stop41h 10m
Korean Air
Deal found 8/6£1,566

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 June 2026.

Round-trip from

£1,168

One-way from

£391
Philippine Airlines
  • Philippine Airlines
  • 9/10-24/10
  • 4 total stops
  • 61h 40m total
  • Guam to London
Search Deals
28/6
  • 28/6
  • 3 total stops
  • 41h 20m 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 June 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

Mon 20/7

02:50-21:25

3 stops27h 35m

London Heathrow

Tue 28/7

08:55-01:50

3 stops31h 55m

£1,261

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 9/7

06:00-06:25

2 stops33h 25m

London Heathrow

Thu 23/7

15:05-04:20

2 stops28h 15m

£1,434
Fastest return journey

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Wed 9/9

02:00-17:20

1 stop24h 20m

London Heathrow

Thu 1/10

19:35-23:55

1 stop19h 20m

£1,491

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Fri 9/10

17:20-17:20

1 stop33h 00m

London Heathrow

Sat 24/10

19:35-14:35

1 stop34h 00m

£1,491

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 25/6

02:00-17:20

1 stop24h 20m

London Heathrow

Fri 3/7

13:25-15:35

1 stop41h 10m

£1,566

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Wed 8/7

00:50-14:20

1 stop22h 30m

London Heathrow

Thu 23/7

06:30-03:35

2 stops36h 05m

£1,570

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Thu 9/7

17:20-17:20

1 stop33h 00m

London Heathrow

Thu 23/7

13:25-15:35

1 stop41h 10m

£1,939

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Fri 26/6

16:35-16:35

2 stops33h 00m

London Heathrow

Fri 3/7

11:00-14:35

2 stops42h 35m

£5,443
Cheapest one-way

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 12/10

06:00-06:25

2 stops33h 25m

£563
Fastest single journey

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 6/9

02:00-18:50

1 stop25h 50m

£949

Flights are sorted by cheapest return flights first.

Deals found on 7/6

Showing 1-10 of 12 resultsSorted by cheapest first
1
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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. Philippine Airlines provides one of the quickest options available for as low as £1,491. Airlines will cover 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 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
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Eastbourne
Watford
Swindon
Ipswich
Poole
Guildford
Romford

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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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