Cheap flights from London Heathrow Airport to Guernsey from £169
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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
Find flight deals from Heathrow to Guernsey
Cheapest flights from Heathrow to GuernseyExplore the most affordable flight options available from Heathrow to Guernsey. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.
Explore the most affordable flight options available from Heathrow to Guernsey. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.
Cheap flight deals from Heathrow to Guernsey
Keep the following information in mind while searching for Heathrow to Guernsey flight deals. Data was last updated 17 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from London Heathrow Airport to Guernsey that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonSaint Peter Port
LHR - GCI
LHRGCI
London Heathrow
Fri 28/11
08:55-14:10
1 stop5h 15m
Saint Peter Port Guernsey
Sun 30/11
11:00-21:05
2 stops10h 05m
LondonSaint Peter Port
LHR - GCI
LHRGCI
London Heathrow
Fri 31/10
07:50-11:30
2 stops27h 40m
Saint Peter Port Guernsey
Tue 4/11
07:10-09:10
2 stops26h 00m
LondonSaint Peter Port
LHR - GCI
LHRGCI
London Heathrow
Fri 14/11
06:30-20:45
2 stops14h 15m
Saint Peter Port Guernsey
Sun 16/11
16:50-10:45
2 stops17h 55m
LondonSaint Peter Port
LHR - GCI
LHRGCI
London Heathrow
Fri 7/11
18:45-11:30
2 stops16h 45m
Saint Peter Port Guernsey
Mon 10/11
07:10-21:05
2 stops13h 55m
LondonSaint Peter Port
LHR - GCI
LHRGCI
London Heathrow
Thu 30/10
07:50-20:45
2 stops12h 55m
Saint Peter Port Guernsey
Mon 3/11
07:10-21:05
2 stops13h 55m
LondonSaint Peter Port
LHR - GCI
LHRGCI
London Heathrow
Mon 3/11
08:50-20:45
2 stops11h 55m
Saint Peter Port Guernsey
Thu 6/11
10:30-19:50
2 stops9h 20m
LondonSaint Peter Port
LHR - GCI
LHRGCI
London Heathrow
Sun 30/11
17:45-20:45
2 stops27h 00m
Saint Peter Port Guernsey
Sun 7/12
07:30-08:05
2 stops24h 35m
LondonSaint Peter Port
LHR - GCI
LHRGCI
London Heathrow
Tue 28/10
16:20-18:25
2 stops26h 05m
Saint Peter Port Guernsey
Fri 31/10
06:50-21:05
2 stops14h 15m
LondonSaint Peter Port
LHR - GCI
LHRGCI
London Heathrow
Wed 12/11
07:50-16:00
2 stops8h 10m
LondonSaint Peter Port
LHR - GCI
LHRGCI
London Heathrow
Tue 11/11
18:50-18:25
2 stops23h 35m
Best time to book a flight from Heathrow to Guernsey
Have a flexible travel schedule? Discover the best time to fly to Guernsey from Heathrow with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Guernsey
What is the cheapest month to book a flight from London Heathrow Airport to Guernsey?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Guernsey (average of £121). Flying from London Heathrow Airport to Guernsey in November is currently the most expensive (average of £3,579). 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.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Guernsey. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Heathrow to Guernsey
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Heathrow to Guernsey
Discover the top airline that operate flights from Heathrow to Guernsey. 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 17 October 2025.
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How does Cheapflights help users find flights from Heathrow to Guernsey?
Cheapflights helps you search for flights from Heathrow to Guernsey via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Guernsey?
Cheapflights simply makes it quick and affordable to book flights from Heathrow to Guernsey by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Heathrow to Guernsey with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Guernsey flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Heathrow to Guernsey become cheaper?
Of course! You can now track prices for flights from Heathrow to Guernsey 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.