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 £163). 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.

£1,115+ Flights from Guam to London Heathrow Airport

Cheap flight deals from Guam to Heathrow

Round-trip from	£1,028
One-way from	£279

30/3-16/4
4 total stops
94h 30m total
Guam to London

Search Deals

10/3
2 total stops
59h 45m 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 22 February 2025.

Sun 30/306:00GUM - LHR

2 stops41h 25mMultiple Airlines

Wed 16/414:25LHR - GUM

2 stops53h 05mMultiple Airlines

Deal found 21/2£1,028

Sun 30/317:00GUM - LHR

1 stop33h 20mKorean Air

Wed 16/419:35LHR - GUM

1 stop34h 40mKorean Air

Deal found 21/2£1,675

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 22 February 2025.

Sun 30/306:00GUM - LHR

2 stops41h 25mMultiple Airlines

Wed 16/414:25LHR - GUM

2 stops53h 05mMultiple Airlines

Deal found 21/2£1,028

Sun 30/317:00GUM - LHR

1 stop33h 20mKorean Air

Wed 16/419:35LHR - GUM

1 stop34h 40mKorean Air

Deal found 21/2£1,675

Last-minute flights from Guam to Heathrow
Discover last-minute flight deals from Guam to Heathrow. Data last updated 22 February 2025 and is based on user searches.

Sun 30/306:00GUM - LHR

2 stops41h 25mMultiple Airlines

Wed 16/414:25LHR - GUM

2 stops53h 05mMultiple Airlines

Deal found 21/2£1,028

Sun 30/317:00GUM - LHR

1 stop33h 20mKorean Air

Wed 16/419:35LHR - GUM

1 stop34h 40mKorean Air

Deal found 21/2£1,675

Find flights from Guam to Heathrow within your budget

Fly from

Fly to

Route

Depart

Return

Price

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 30/3

06:00-13:25

2 stops41h 25m

London Heathrow

Wed 16/4

14:25-04:30

2 stops53h 05m

£1,028

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Sun 30/3

17:00-17:20

1 stop33h 20m

London Heathrow

Wed 16/4

19:35-15:15

1 stop34h 40m

£1,675

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Mon 10/3

16:30-18:15

2 stops59h 45m

£279

TamuningLondon

GUM - LHR

GUMLHR

Tamuning Guam Intl

Wed 5/3

16:10-16:30

1 stop34h 20m

£1,005

Flights are sorted by cheapest return flights first.

Deals found on 22/2

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.

Travel insights for flights from Guam to Heathrow

Get recent, data-driven insights about flights from Guam to Heathrow including ideal travel times, pricing trends, and more.

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

1,037 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

1,037 reviews

Korean Air

8.4

Very Good

1,037 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 £163). 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.

See more FAQs

Deal

Hounslow

Milton Keynes

Croydon

Gatwick

Slough

Luton

Ilford

Hayes

Eastbourne

Swindon

Northampton

Wembley

Southend-on-Sea

Ipswich

Winchester

Maidstone

Crawley

Southall

Watford

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Guam to Heathrow?

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.

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

Of course! You can now track prices for flights from Guam to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price 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.

Cheap flights from Guam to London Heathrow Airport from £279

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 10/3. 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 22 February 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 22 February 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 22 February 2025.

Find flights from Guam to Heathrow within your budget

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.

Travel insights for flights from Guam to Heathrow

Get recent, data-driven insights about flights from Guam to Heathrow including ideal travel times, pricing trends, and more.

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 22 February 2025.