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Cheap flights from London Heathrow Airport to Guernsey from £203

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 28/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GCI
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Heathrow to Guernsey

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Cheapest flights from Heathrow to Guernsey
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 5 November 2025.

Fri 5/1206:20LHR - GCI
1 stop7h 50mMultiple Airlines
Mon 8/1213:30GCI - LHR
1 stop7h 55mMultiple Airlines
Deal found 3/11£331
Mon 10/1109:00LHR - GCI
1 stop7h 55mMultiple Airlines
Fri 14/1110:40GCI - LHR
1 stop5h 55mMultiple Airlines
Deal found 3/11£373
Mon 17/1108:55LHR - GCI
1 stop8h 00mMultiple Airlines
Tue 18/1107:10GCI - LHR
2 stops13h 55mMultiple Airlines
Deal found 3/11£411
Wed 19/1119:30LHR - GCI
2 stops20h 35mMultiple Airlines
Sun 23/1113:05GCI - LHR
2 stops19h 00mMultiple Airlines
Deal found 4/11£424
Sun 16/1107:50LHR - GCI
2 stops32h 10mMultiple Airlines
Tue 18/1107:10GCI - LHR
2 stops13h 55mMultiple Airlines
Deal found 3/11£450
Fri 28/1106:20LHR - GCI
1 stop7h 50mMultiple Airlines
Mon 1/1207:10GCI - LHR
2 stops8h 25mMultiple Airlines
Deal found 4/11£470
Thu 27/1107:50LHR - GCI
2 stops12h 55mMultiple Airlines
Fri 28/1106:50GCI - LHR
2 stops14h 15mMultiple Airlines
Deal found 4/11£486
Tue 4/1120:45LHR - GCI
2 stops19h 15mMultiple Airlines
Tue 11/1107:10GCI - LHR
2 stops27h 00mMultiple Airlines
Deal found 3/11£506

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 5 November 2025.

Round-trip from

£331

One-way from

£203

Popular in

December

Cheapest in

March

Average price

£164
5/12-8/12
  • 5/12-8/12
  • 2 total stops
  • 15h 45m total
  • London to Guernsey
Search Deals
28/11
  • 28/11
  • 2 total stops
  • 9h 50m total
  • London to Guernsey
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£5 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Guernsey that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Guernsey that are best for you.

Fly from

Heathrow

Fly to

Guernsey

Route

Depart

Return

Price

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Fri 5/12

06:20-14:10

1 stop7h 50m

Saint Peter Port Guernsey

Mon 8/12

13:30-21:25

1 stop7h 55m

£331

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Mon 17/11

08:55-16:55

1 stop8h 00m

Saint Peter Port Guernsey

Tue 18/11

07:10-21:05

2 stops13h 55m

£411

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Wed 19/11

19:30-16:05

2 stops20h 35m

Saint Peter Port Guernsey

Sun 23/11

13:05-08:05

2 stops19h 00m

£424

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Sun 16/11

07:50-16:00

2 stops32h 10m

Saint Peter Port Guernsey

Tue 18/11

07:10-21:05

2 stops13h 55m

£450

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Fri 28/11

06:20-14:10

1 stop7h 50m

Saint Peter Port Guernsey

Mon 1/12

07:10-15:35

2 stops8h 25m

£470

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Thu 27/11

07:50-20:45

2 stops12h 55m

Saint Peter Port Guernsey

Fri 28/11

06:50-21:05

2 stops14h 15m

£486

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Thu 20/11

20:45-20:45

2 stops24h 00m

Saint Peter Port Guernsey

Mon 24/11

16:50-09:05

2 stops16h 15m

£515

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Fri 28/11

20:45-11:30

2 stops14h 45m

Saint Peter Port Guernsey

Sun 30/11

07:30-10:10

2 stops26h 40m

£522

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Fri 28/11

10:55-20:45

2 stops9h 50m

£203

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Tue 30/12

22:05-18:35

2 stops20h 30m

£226

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 12 results
1
2

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.
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 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 £124). Flying from London Heathrow Airport to Guernsey in November is currently the most expensive (average of £3,677). 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.

  • Can I find deals for flights from Heathrow to Guernsey that include hotel bookings?

    Yes. In addition to deals on Heathrow to Guernsey flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Guernsey?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Guernsey.

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

    Yes. Cheapflights offers flight deals from Heathrow to Guernsey 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 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 £124). Flying from London Heathrow Airport to Guernsey in November is currently the most expensive (average of £3,677). 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

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Alternative routes for Heathrow to Guernsey

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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 5 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Aurigny AirCheapest£122Average£185FlexibilityNo cancel feeOn-time78%
Search Aurigny Air flights

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

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