What is the cheapest month to book a flight from Guam to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Guam to London Heathrow Airport (average of £112). Flying from Guam to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

When flying from Guam to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£1,810+ Flights from Guam to London Heathrow Airport

Cheap flight deals from Guam to Heathrow

Round-trip from	£1,096
One-way from	£278

26/4-3/5
4 total stops
71h 05m total
Guam to London

Search Deals

8/4
2 total stops
33h 55m total
Guam to London

Search Deals

Find flight deals from Guam to Heathrow

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 28 March 2025.

Sat 26/415:30GUM - LHR

2 stops38h 00mMultiple Airlines

Sat 3/520:25LHR - GUM

2 stops33h 05mMultiple Airlines

Deal found 26/3£1,096

Sat 27/1216:50GUM - LHR

1 stop33h 40mKorean Air

Sat 3/118:50LHR - GUM

1 stop33h 45mKorean Air

Deal found 27/3£2,068

Sat 27/1216:35GUM - LHR

2 stops47h 00mMalaysia Airlines

Sat 3/121:25LHR - GUM

2 stops31h 10mMalaysia Airlines

Deal found 26/3£5,108

Best flights from Guam to Heathrow
Discover carefully curated flight deals from Guam to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 March 2025.

Sat 26/415:30GUM - LHR

2 stops38h 00mMultiple Airlines

Sat 3/520:25LHR - GUM

2 stops33h 05mMultiple Airlines

Deal found 26/3£1,096

Fri 4/717:00GUM - LHR

1 stop33h 20mKorean Air

Thu 24/719:35LHR - GUM

1 stop34h 40mKorean Air

Deal found 26/3£2,493

Last-minute flights from Guam to Heathrow
Discover last-minute flight deals from Guam to Heathrow. Data last updated 28 March 2025 and is based on user searches.

Sat 26/415:30GUM - LHR

2 stops38h 00mMultiple Airlines

Sat 3/520:25LHR - GUM

2 stops33h 05mMultiple Airlines

Deal found 26/3£1,096

Sat 26/417:00GUM - LHR

1 stop33h 20mKorean Air

Sat 3/519:35LHR - GUM

1 stop34h 40mKorean Air

Deal found 26/3£2,812

Cheapflights Fare Finder

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

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sat 26/4

15:30-20:30

2 stops38h 00m

London Heathrow

Sat 3/5

20:25-14:30

2 stops33h 05m

£1,096

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Fri 4/7

17:00-17:20

1 stop33h 20m

London Heathrow

Thu 24/7

19:35-15:15

1 stop34h 40m

£2,493

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Tue 8/4

17:10-18:05

2 stops33h 55m

£278

Flights are sorted by cheapest return flights first.

Deals found on 26/3

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

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Korean Air

8.4

Very Good

1,050 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Korean Air

8.4

Very Good

1,050 reviews

Korean Air

8.4

Very Good

1,050 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2025

ATL - SBN

Related info for your journey

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.
What is the cheapest month to book a flight from Guam to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Guam to London Heathrow Airport (average of £112). Flying from Guam to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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When you search for this flight from Guam to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Guam to Heathrow for you. Better yet — we are completely free to use.

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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Cheap flights from Guam to London Heathrow Airport from £278

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Guam to Heathrow

Keep the following information in mind while searching for Guam to Heathrow flight deals. Data was last updated 28 March 2025.

Round-trip from

One-way from

Find flight deals from Guam to Heathrow

Cheapest flights from Guam to HeathrowExplore 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 28 March 2025.

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 28 March 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Guam to London Heathrow Airport that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Guam to London Heathrow Airport

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

Reviews of airlines servicing Heathrow

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?

How can I find direct flights from Guam to Heathrow?

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

What is the cheapest month to book a flight from Guam to London Heathrow Airport?

Travelling to a place near Guam?

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 Guam to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

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 Guam to Heathrow?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 28 March 2025.