Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Guam from £993

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GUM
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 31 October 2025.

Mon 3/1118:50LHR - GUM
1 stop18h 15mKorean Air
Sun 9/1101:00GUM - LHR
1 stop25h 30mKorean Air
Deal found 29/10£1,190
Mon 3/1114:05LHR - GUM
2 stops38h 30mJapan Airlines
Mon 10/1116:35GUM - LHR
2 stops53h 45mJapan Airlines
Deal found 29/10£1,308
Mon 3/1113:50LHR - GUM
2 stops38h 45mMultiple Airlines
Mon 10/1116:35GUM - LHR
2 stops29h 35mMultiple Airlines
Deal found 30/10£1,648

Cheap flight deals from Heathrow to Guam

Keep the following information in mind while searching for Heathrow to Guam flight deals. Data was last updated 31 October 2025.

Round-trip from

£890

Popular in

October

Cheapest in

June

Average price

£1,195
28/2-13/3
  • 28/2-13/3
  • 4 total stops
  • 56h 00m total
  • London to Guam
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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 31 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Guam that are best for you.

Fly from

Heathrow

Fly to

Guam

Route

Depart

Return

Price

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 26/4

19:20-14:40

1 stop34h 20m

Tamuning Guam Intl

Sun 10/5

16:40-06:25

1 stop22h 45m

£993

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

£1,096

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 25/4

07:35-14:40

2 stops46h 05m

Tamuning Guam Intl

Sat 9/5

16:40-19:55

1 stop36h 15m

£1,122

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sat 28/2

08:40-04:00

2 stops33h 20m

Tamuning Guam Intl

Sat 14/3

05:45-14:00

2 stops42h 15m

£1,191

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Mon 16/3

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Thu 19/3

16:50-16:30

1 stop33h 40m

£1,199

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Sun 1/3

18:50-23:05

1 stop18h 15m

Tamuning Guam Intl

Sun 15/3

16:50-16:30

1 stop33h 40m

£1,210

LondonTamuning

LHR - GUM

LHRGUM

London Heathrow

Fri 27/2

18:50-14:35

1 stop33h 45m

Tamuning Guam Intl

Sat 14/3

16:50-16:30

1 stop33h 40m

£1,210

Flights are sorted by cheapest return flights first.

Deals found on 29/10

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

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

Find hourly flight availability from Heathrow 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 31 October 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 40% on flights from London Heathrow Airport to Guam by exploring options for tickets in the morning.

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 31 October 2025.
Check out reviews from past customers who have flown with Korean Air and Japan Airlines from London Heathrow Airport to Guam to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,155 reviews
Check prices

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,155 reviews
Korean Air
8.4
Very Good
1,155 reviews
Check prices

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Japan Airlines
8.3
Very Good
1,597 reviews
Korean Air
8.4
Very Good
1,155 reviews
Check prices

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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 18h 15m. The distance between London Heathrow Airport and Guam is about 7483 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Guam

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Sydney flights
Heathrow to Melbourne flights
Gatwick to Sydney flights
Heathrow to Perth flights
Stansted to Sydney flights
Heathrow to Auckland flights
Gatwick to Melbourne flights
London City to Sydney flights
Stansted to Melbourne flights
London City to Melbourne flights
Gatwick to Auckland flights
Stansted to Auckland flights
Heathrow to Brisbane flights
Heathrow to Avalon flights
London City to Auckland flights
Gatwick to Perth flights
Stansted to Perth flights
Gatwick to Brisbane flights
London City to Perth flights
Stansted to Brisbane flights
London City to Brisbane flights
Luton to Sydney flights
Heathrow to Christchurch flights
Heathrow to Adelaide flights
Heathrow to Nadi flights
Gatwick to Avalon flights
Luton to Auckland flights
Gatwick to Christchurch flights
Stansted to Christchurch flights
Luton to Perth flights
Gatwick to Adelaide flights
Stansted to Adelaide flights
Heathrow to Wellington flights
London City to Adelaide flights
Luton to Brisbane flights
Gatwick to Wellington flights
Stansted to Wellington flights
London City to Christchurch flights
Gatwick to Nadi flights
Heathrow to Queenstown flights
Stansted to Nadi flights
Heathrow to Cairns flights
Heathrow to Hobart flights
Gatwick to Hobart flights
Stansted to Queenstown flights
Gatwick to Queenstown flights
Stansted to Cairns flights
Gatwick to Cairns flights
Stansted to Hobart flights
Heathrow to Canberra flights

Top 2 airlines flying from Heathrow to Guam

Discover the top 2 airlines that operate flights from Heathrow 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 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Japan AirlinesCheapest£836Average£896FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
Korean AirCheapest£1,048Average£1,131FlexibilityNo 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 Heathrow to Guam?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.