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Cheap flights from London Heathrow Airport to Guernsey from £173

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GCI
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Heathrow to Guernsey

Enter your travel dates to find the best prices.

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 11 November 2025.

Fri 26/1206:20LHR - GCI
1 stop7h 50mMultiple Airlines
Mon 29/1213:30GCI - LHR
1 stop4h 50mMultiple Airlines
Deal found 9/11£425
Mon 8/1210:55LHR - GCI
2 stops9h 50mMultiple Airlines
Mon 15/1207:10GCI - LHR
2 stops13h 55mMultiple Airlines
Deal found 10/11£428
Tue 9/1207:50LHR - GCI
2 stops12h 50mMultiple Airlines
Wed 10/1212:50GCI - LHR
2 stops8h 15mMultiple Airlines
Deal found 10/11£438
Fri 26/1206:20LHR - GCI
1 stop7h 50mMultiple Airlines
Fri 2/110:40GCI - LHR
1 stop5h 55mMultiple Airlines
Deal found 9/11£440
Tue 9/1207:50LHR - GCI
2 stops12h 50mMultiple Airlines
Tue 16/1206:45GCI - LHR
2 stops13h 05mMultiple Airlines
Deal found 9/11£441
Fri 5/1206:20LHR - GCI
1 stop7h 50mMultiple Airlines
Tue 9/1207:10GCI - LHR
2 stops12h 40mMultiple Airlines
Deal found 9/11£463
Sun 16/1113:20LHR - GCI
2 stops27h 35mMultiple Airlines
Sun 23/1116:50GCI - LHR
2 stops26h 00mMultiple Airlines
Deal found 9/11£468
Tue 25/1115:30LHR - GCI
3 stops27h 05mMultiple Airlines
Sat 29/1107:30GCI - LHR
2 stops10h 20mMultiple Airlines
Deal found 10/11£480
Sun 16/1107:50LHR - GCI
2 stops32h 10mMultiple Airlines
Tue 18/1107:10GCI - LHR
2 stops13h 55mMultiple Airlines
Deal found 10/11£510

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 11 November 2025.

Round-trip from

£301

One-way from

£173

Popular in

December

Cheapest in

March

Average price

£167
2/4-7/4
  • 2/4-7/4
  • 2 total stops
  • 12h 10m total
  • London to Guernsey
Search Deals
15/3
  • 15/3
  • 2 total stops
  • 24h 25m total
  • London to Guernsey
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£3 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 11 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

Thu 2/4

07:40-14:20

1 stop6h 40m

Saint Peter Port Guernsey

Tue 7/4

10:25-15:55

1 stop5h 30m

£301

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Fri 6/2

06:20-14:10

1 stop7h 50m

Saint Peter Port Guernsey

Wed 11/2

14:35-10:10

2 stops19h 35m

£332

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Fri 26/12

06:20-14:10

1 stop7h 50m

Saint Peter Port Guernsey

Mon 29/12

13:30-18:20

1 stop4h 50m

£425

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Sat 17/1

20:50-16:10

3 stops19h 20m

Saint Peter Port Guernsey

Mon 19/1

13:30-18:20

1 stop4h 50m

£428

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Mon 8/12

10:55-20:45

2 stops9h 50m

Saint Peter Port Guernsey

Mon 15/12

07:10-21:05

2 stops13h 55m

£428

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Tue 9/12

07:50-20:40

2 stops12h 50m

Saint Peter Port Guernsey

Wed 10/12

12:50-21:05

2 stops8h 15m

£438

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Fri 26/12

06:20-14:10

1 stop7h 50m

Saint Peter Port Guernsey

Fri 2/1

10:40-16:35

1 stop5h 55m

£440

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Tue 9/12

07:50-20:40

2 stops12h 50m

Saint Peter Port Guernsey

Tue 16/12

06:45-19:50

2 stops13h 05m

£441

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Sun 15/3

10:45-11:10

2 stops24h 25m

£173

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Sun 30/11

20:30-11:10

2 stops14h 40m

£230

Flights are sorted by cheapest return flights first.

Deals found on 10/11

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
No data available for this route at this time. Please check back soon.

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.

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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 11 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Aurigny AirCheapest£121Average£184FlexibilityNo cancel feeOn-time78%
Search Aurigny Air flights

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

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

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