£64 Find Cheap Flights from London Heathrow Airport to Guernsey – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Guernsey departing on 4/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Heathrow to Guernsey Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Guernsey that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Guernsey

Sun, 23 Aug - Thu, 27 Aug
British Airways Logo
11:55 - 12:55
LHR
-
GCI
1h 00mdirect
British Airways Logo
13:45 - 14:50
GCI
-
LHR
1h 05mdirect
£135British Airways
Sun, 23 Aug - Thu, 27 Aug
British Airways Logo
11:55 - 12:55
LHR
-
GCI
1h 00mdirect
British Airways Logo
13:45 - 14:50
GCI
-
LHR
1h 05mdirect
£136British Airways
Fri, 23 Oct - Sun, 25 Oct
British Airways Logo
11:55 - 12:55
LHR
-
GCI
1h 00mdirect
British Airways Logo
13:50 - 14:55
GCI
-
LHR
1h 05mdirect
£137British Airways
Thu, 8 Oct - Sun, 11 Oct
British Airways Logo
11:55 - 12:55
LHR
-
GCI
1h 00mdirect
British Airways Logo
13:45 - 14:50
GCI
-
LHR
1h 05mdirect
£138British Airways
Tue, 18 Aug - Tue, 25 Aug
British Airways Logo
11:55 - 12:55
LHR
-
GCI
1h 00mdirect
British Airways Logo
13:45 - 14:50
GCI
-
LHR
1h 05mdirect
£142British Airways
Mon, 30 Nov - Thu, 3 Dec
British Airways Logo
11:55 - 12:55
LHR
-
GCI
1h 00mdirect
British Airways Logo
13:50 - 14:55
GCI
-
LHR
1h 05mdirect
£145British Airways
Tue, 18 Aug - Wed, 19 Aug
British Airways Logo
11:55 - 12:55
LHR
-
GCI
1h 00mdirect
British Airways Logo
13:45 - 14:50
GCI
-
LHR
1h 05mdirect
£148British Airways
Mon, 19 Oct - Fri, 23 Oct
British Airways Logo
11:55 - 12:55
LHR
-
GCI
1h 00mdirect
British Airways Logo
13:45 - 14:50
GCI
-
LHR
1h 05mdirect
£150British Airways
Tue, 4 Aug - Wed, 5 Aug
British Airways Logo
11:55 - 12:55
LHR
-
GCI
1h 00mdirect
British Airways Logo
13:45 - 14:50
GCI
-
LHR
1h 05mdirect
£151British Airways
Tue, 4 Aug - Wed, 5 Aug
British Airways Logo
11:55 - 12:55
LHR
-
GCI
1h 00mdirect
British Airways Logo
13:45 - 14:50
GCI
-
LHR
1h 05mdirect
£155British Airways
Booking Insights

KAYAK's insights & trends for Heathrow to Guernsey flights

Get data-powered insights and trends into flights from Heathrow to Guernsey to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London Heathrow Airport to Guernsey flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Guernsey from London Heathrow Airport found in the last 72 hours was to Saint Peter Port, at £114 return. The most popular route is from London Heathrow Airport (LHR) to Saint Peter Port (GCI), and the cheapest round-trip airline ticket found on this route in the last 5 days was £114.

What is the cheapest time of day to fly to Guernsey?

The average price for all round-trip flights from London Heathrow Airport to Guernsey depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Guernsey is generally in the morning, when retur flights cost £118 on average. The most expensive time of day to fly to Guernsey is generally in the morning, which is peak travel time and where the average cost of a ticket is £118.

What is the cheapest month to fly from London Heathrow Airport to Guernsey?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Guernsey, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Guernsey is November, when tickets cost £0 (return) on average. On the other hand, the most expensive months are January and March, when the average cost of return tickets is £161 and £160 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to Guernsey?

The average price of all round-trip flights from London Heathrow Airport to Guernsey clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from London Heathrow Airport to Guernsey, look for departures on Wednesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Guernsey, Wednesday is the cheapest day to fly and Friday is the most expensive.

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Good to know - Cheap tickets from London Heathrow Airport to Guernsey

Low seasonMay
Cheapest flight£64
Best time to beat the crowds (23% less expensive on average)
Most popular time to fly and prices are also 23% lower on average.
Flight from London Heathrow Airport to Saint Peter Port

FAQs - booking Guernsey flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Guernsey?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Guernsey.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Guernsey?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Guernsey is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Guernsey?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to Guernsey with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Guernsey?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London Heathrow Airport to Guernsey up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Heathrow to Guernsey

 
Need help choosing which airline to fly with from Heathrow to Guernsey? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.8
Aurigny AirOverall score based on 15 reviews
8.8Boarding
8.6Comfort
6.8Entertainment
6.8Food
9.0Crew
Airline reviews

Boarding was slick and the plane left on time. Staff were all lovely.

10.0 ExcellentMark, Mar 2026
GCI - BHX
Read more Aurigny Air reviews

Boarding was slick and the plane left on time. Staff were all lovely.

Friendly crew, cabin clean & tidy and flight on time. Great experience

Good flight, friendly staff. Only a short one so no refreshments expected but they offered a glass of water which was welcome.

Seats too small. Really uncomfortable if neighbour is fat or simply selfish and invades your space.

Seats were comfortable, but boarding was the worst I've ever seen. Way too much walking to get onboard as we had to go up & down steps several & then bus took us halfway around the airport for boarding & had to board outside after a very long bus rood.

I will never want to book with these people. They are arrogant and rude. Food was really really bad, crew was even worst

The plane was so old, it needs to be retired! The windows were rattling we paid for premier economy and there was no footrest. Video console was so old, barely had any games for kids. Video console is very slow to react. The gaming console was broken. The foldable food table was sticky and the air hostess had a rough time opening it and closing it for us!!

Generally very good. I think their service is better than some other big names I used to travel with. Their food variety is second to none - and you can place order beforehand. Their seating design is a bit awkward for service, I'd say. Flight attendants must be tall enough - long legs and arms - to reach the window seat passenger while crossing over the isle passenger. Also appreciated the variety on entertainment.

Could have used more leg room for “business class” which is basically coach with a middle seat blocked. Crew was friendly, attentive. Zero entertainment.

Generally okay. Disappointing compared to some of their competitors. My seat hadn’t been cleaned properly which was upsetting

Seats not as comfortable as I had hoped. Food was very nice, service was fine. Entertainment options very nice. Had thought the premium economy was a more plus 2-3-2 layout but it was a 2-4-2 with seats not as wide as I had expected.

I flew four flights on British Airways within two weeks. I was unable to download the boarding pass to my phone for any of the four flights. I could check-in for my flight but the system would not give me boarding pass. I tried multiple ways and multiple times. I discovered many other passengers also had the same issue with their boarding passes. No explanation or acknowledgement by BA.

The plane was a long way from departure lounge. The plane looked tired but got us there.

Lovely big plane. Excellent take off and landing. Cabin crew were so nice. Flight in time no delays

Everything you need to know for your flight from Heathrow to Guernsey

Information on your arrival and departure airports

London Heathrow Airport (LHR)