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Cheap flights from London Heathrow Airport to Guam from £513

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 18/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GUM
2 May — 9 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Guam

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Guam
Explore the most affordable flight options available from Heathrow to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 April 2026.

Sun 7/609:30
LHR
-
GUM
2 stops33h 05m
Multiple Airlines
Sun 14/617:20
GUM
-
LHR
2 stops30h 45m
Multiple Airlines
Deal found 2/4£892
Wed 14/1016:35
LHR
-
GUM
1 stop22h 20m
Multiple Airlines
Wed 28/1016:50
GUM
-
LHR
1 stop35h 15m
Multiple Airlines
Deal found 31/3£1,020
Tue 15/916:35
LHR
-
GUM
1 stop26h 00m
Multiple Airlines
Sat 19/904:40
GUM
-
LHR
3 stops42h 25m
Multiple Airlines
Deal found 29/3£1,223
Thu 14/519:35
LHR
-
GUM
1 stop19h 20m
Korean Air
Mon 18/517:20
GUM
-
LHR
1 stop33h 00m
Korean Air
Deal found 28/3£1,247
Sat 17/1019:35
LHR
-
GUM
1 stop19h 20m
Korean Air
Mon 26/1016:50
GUM
-
LHR
1 stop33h 40m
Korean Air
Deal found 1/4£1,299

Find flight deals from Heathrow to Guam

Keep the following information in mind while searching for Heathrow to Guam flight deals. Data was last updated 2 April 2026.

Round-trip from

£892

One-way from

£513
7/6-14/6
  • 7/6-14/6
  • 4 total stops
  • 63h 50m total
  • London to Guam
Search Deals
18/4
  • 18/4
  • 2 total stops
  • 56h 30m total
  • London to Guam
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 2 April 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 7/6

09:30-03:35

3 stops33h 05m

Tamuning Guam Intl

Sun 14/6

17:20-12:45

2 stops28h 25m

£1,094
Fastest return journey

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Thu 14/5

19:35-23:55

1 stop19h 20m

Tamuning Guam Intl

Mon 18/5

17:20-17:20

1 stop33h 00m

£1,247

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 7/6

19:35-15:35

1 stop35h 00m

Tamuning Guam Intl

Thu 11/6

17:20-17:20

1 stop33h 00m

£1,322

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 7/6

18:10-14:35

2 stops59h 25m

Tamuning Guam Intl

Thu 11/6

16:35-07:25

2 stops47h 50m

£1,358

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 28/9

16:00-14:35

2 stops37h 35m

Tamuning Guam Intl

Mon 12/10

16:40-13:15

2 stops29h 35m

£1,383
Cheapest one-way
Fastest single journey

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 18/4

22:05-15:35

2 stops56h 30m

£513

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Sorted by cheapest first

Best time to book a flight from Heathrow to Guam

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

    Departing from London Heathrow Airport to Guam will take you 19h 20m. The distance between London Heathrow Airport and Guam is about 7483 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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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Cheapflights makes it easy to find Heathrow to Guam flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Guam for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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

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

Yes! Start tracking prices for Heathrow 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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