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C$57 Cheap Flights from Guernsey to London Heathrow

Compare Guernsey to London Heathrow flight deals

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Flight deals from Guernsey to London Heathrow

Looking for a cheap last-minute deal or the best round-trip flight from Guernsey to London Heathrow? Find the lowest prices on one-way and round-trip tickets right here.
London.C$57 per passenger.Departing Tue., Jul. 7.One-way flight with British Airways.Outbound direct flight with British Airways departs from Guernsey on Tue., Jul. 7, arriving in London Heathrow.Price includes taxes and charges.From C$57, select.
London.C$57 per passenger.Departing Sat., Apr. 25.One-way flight with British Airways.Outbound direct flight with British Airways departs from Guernsey on Sat., Apr. 25, arriving in London Heathrow.Price includes taxes and charges.From C$57, select.
London.C$57 per passenger.Departing Sun., Jun. 7.One-way flight with British Airways.Outbound direct flight with British Airways departs from Guernsey on Sun., Jun. 7, arriving in London Heathrow.Price includes taxes and charges.From C$57, select.
London.C$57 per passenger.Departing Tue., Aug. 11.One-way flight with British Airways.Outbound direct flight with British Airways departs from Guernsey on Tue., Aug. 11, arriving in London Heathrow.Price includes taxes and charges.From C$57, select.
London.C$57 per passenger.Departing Sat., May 2.One-way flight with British Airways.Outbound direct flight with British Airways departs from Guernsey on Sat., May 2, arriving in London Heathrow.Price includes taxes and charges.From C$57, select.
London.C$61 per passenger.Departing Thu., Sep. 3.One-way flight with British Airways.Outbound direct flight with British Airways departs from Guernsey on Thu., Sep. 3, arriving in London Heathrow.Price includes taxes and charges.From C$61, select.
London.C$291 per passenger.Departing Wed., Jan. 14.One-way flight with Aurigny.Outbound indirect flight with Aurigny, departs from Guernsey on Wed., Jan. 14, arriving in London Heathrow.Price includes taxes and charges.From C$291, select.
London.C$315 per passenger.Departing Wed., Feb. 4.One-way flight with Aurigny.Outbound indirect flight with Aurigny, departs from Guernsey on Wed., Feb. 4, arriving in London Heathrow.Price includes taxes and charges.From C$315, select.

Find the cheapest month to fly from Guernsey to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Guernsey to London Heathrow flights are currently cheapest in April.
Dec.
from C$386
Jan.
from C$291
Feb.
from C$315
Mar.
from C$376
Apr.
from C$57
May
from C$57
Jun.
from C$57
Jul.
from C$57
Aug.
from C$57
Sep.
from C$61
Oct.
Find prices
Nov.
Find prices

Direct flights from Guernsey to London Heathrow

Guernsey to London Heathrow: Alternative routes

Compare routes from Guernsey to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Forest to London: Flight information

The things to know before you go.
Cheapest flight foundC$57
Cheapest month to flyJune
Average flight time1 hr, 5 mins
Most popular airlineBritish Airways
Average flights per week7

Finding cheap flights from Guernsey to London Heathrow: Frequently asked questions

The best price we found for a return flight from Guernsey to London Heathrow is C$163. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 5 minutes is the average flight time from Guernsey to London Heathrow.
British Airways flies direct from Guernsey to London Heathrow.
As of December 2025, there are 7 flights per week flying from Guernsey to London Heathrow.
The cheapest month to fly from Guernsey to London Heathrow is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Guernsey Airport to London Heathrow Airport on Thursday, November 5, 2026.
Yes – the average flight time is 1 hour and 5 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, British Airways offers the cheapest flight tickets to London Heathrow.

Flying from Guernsey Airport (GCI) to London Heathrow Airport (LHR): what you need to know

  • You'll likely experience longer lines during popular months such as July and other peak periods. Arriving up to fours hours ahead of an international flight and two hours for domestic departures will help ensure a smooth travel experience.

  • Finding a stopover for flights from Guernsey Airport to London Heathrow Airport is simple with our handy search tool. Just uncheck 'Direct flights only' to view the available options. Zurich Airport is a sought-after stopover when flying from GCI to LHR.

How to find the cheapest flights from Guernsey Airport (GCI) to London Heathrow Airport (LHR)

  • The best price we've found for a one-way ticket from Guernsey Airport to London Heathrow Airport is C$57. The cheapest price for a return flight is C$163. Keep in mind that fares can change due to demand at the time of booking.

  • It's usually smart to book early if you want to find cheap flight tickets from GCI to LHR. That's because airlines adjust prices based on demand, which tends to rise closer to the date of departure.

  • The 'Whole month' tool shows you the cheapest flight tickets from Guernsey Airport to London Heathrow Airport across the entire month. It's an easy way to find a bargain if your plans are flexible.

  • Finding a cheap ticket from GCI to LHR is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you when the price has dropped.

  • Use filters to tailor your flights from Guernsey Airport to London Heathrow Airport. Simply enter your ideal departure and arrival times, airlines and number of stops. Alternatively, sort your results by 'Cheapest' to see the best deals.

Handy information about Guernsey Airport (GCI)

  • The journey from the center of Guernsey to Guernsey Airport is roughly 11 kilometres. Check out travel apps like Google Maps for the fastest route, whether that's in your own car or with public transport.

  • Have an early flight from Guernsey Airport to London Heathrow Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels close to GCI:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport to central London is around 57 minutes in a car. It's approximately 31 kilometres away. See what options are available, such as cabs, car rentals or ride-sharing services.

  • Getting to the center on public transport takes around 1 hour and 1 minute.

When to fly to London Heathrow Airport (LHR)

  • The quietest month for a flight from Guernsey Airport to London Heathrow Airport is February, while July is the most popular. Choose the ideal time to go to London based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • Book your flight from Guernsey Airport to London Heathrow Airport for July if you want to go to London during its warmest month. You can expect temperatures of between 11ºC and 26ºC.

  • Search for cheap flight tickets from GCI to LHR in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 0ºC and 9ºC on average.

More about London

Complete your London trip with hotels and a car rental

  • We've got more party tricks up our sleeve than just comparing flights. After booking your cheap ticket to London Heathrow Airport, check out our great car rental offers that'll give you the freedom to travel around at your own pace. Next, take a look at our exclusive rates for hotels to find your ideal London stay.

Plan the rest of your trip from Forest to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.