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Cheap flights from London Heathrow Airport to Guernsey from £62

LHR — GCI
23 Sep — 30 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Guernsey

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Guernsey

Fri 2/1011:55 -
Nonstop1h 00m
Mon 12/1013:45 -
Nonstop1h 05m
Deal found 20/8£126
Tue 29/1212:00 -
Nonstop1h 00m
Fri 1/113:50 -
Nonstop1h 05m
Deal found 19/8£137
Tue 3/1112:00 -
Nonstop1h 00m
Fri 6/1113:50 -
Nonstop1h 05m
Deal found 24/8£138
Tue 24/1112:00 -
Nonstop1h 00m
Fri 27/1113:50 -
Nonstop1h 05m
Deal found 24/8£139
Fri 2/1011:55 -
Nonstop1h 00m
Thu 8/1013:45 -
Nonstop1h 05m
Deal found 20/8£140
Fri 30/1012:00 -
Nonstop1h 00m
Sun 8/1113:50 -
Nonstop1h 05m
Deal found 24/8£141
Sat 10/1011:55 -
Nonstop1h 00m
Fri 16/1013:45 -
Nonstop1h 05m
Deal found 24/8£141
Mon 2/1112:00 -
Nonstop1h 00m
Fri 6/1113:50 -
Nonstop1h 05m
Deal found 24/8£144
Fri 25/911:55 -
Nonstop1h 00m
Sun 27/913:45 -
Nonstop1h 05m
Deal found 20/8£148
Sun 25/1012:00 -
Nonstop1h 00m
Thu 29/1013:50 -
Nonstop1h 05m
Deal found 19/8£149
Sun 20/911:55 -
Nonstop1h 00m
Sun 27/913:45 -
Nonstop1h 05m
Deal found 23/8£153
Thu 17/911:55 -
Nonstop1h 00m
Mon 21/913:45 -
Nonstop1h 05m
Deal found 23/8£154

Find flight deals from Heathrow to Guernsey

Round-trip from

£126

One-way from

£62

Popular in

October

Cheapest in

December

Average price

£139

Good round-trip deal

£136 or less
British Airways
  • British Airways
  • 2/10-12/10
  • Nonstop
  • 2h 05m total
  • London to Guernsey
Search Deals
British Airways
  • British Airways
  • 10/11
  • Nonstop
  • 1h 00m total
  • London to Guernsey
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£9 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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Price to beat on a round-trip flight from London Heathrow to Guernsey.
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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

Cheapest return flight
Fastest return journey

LondonSaint Peter Port

LHR London Heathrow - GCI Saint Peter Port Guernsey

LHRGCI

London Heathrow

Fri 2/10

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Wed 7/10

13:45-14:50

Nonstop1h 05m

£126

LondonSaint Peter Port

LHR London Heathrow - GCI Saint Peter Port Guernsey

LHRGCI

London Heathrow

Sun 4/10

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Thu 8/10

13:45-14:50

Nonstop1h 05m

£126

LondonSaint Peter Port

LHR London Heathrow - GCI Saint Peter Port Guernsey

LHRGCI

London Heathrow

Wed 7/10

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Thu 8/10

13:45-14:50

Nonstop1h 05m

£126

LondonSaint Peter Port

LHR London Heathrow - GCI Saint Peter Port Guernsey

LHRGCI

London Heathrow

Mon 5/10

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Thu 8/10

13:45-14:50

Nonstop1h 05m

£126

LondonSaint Peter Port

LHR London Heathrow - GCI Saint Peter Port Guernsey

LHRGCI

London Heathrow

Fri 2/10

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Fri 9/10

13:45-14:50

Nonstop1h 05m

£126

LondonSaint Peter Port

LHR London Heathrow - GCI Saint Peter Port Guernsey

LHRGCI

London Heathrow

Wed 4/11

12:00-13:00

Nonstop1h 00m

Saint Peter Port Guernsey

Fri 6/11

13:50-14:55

Nonstop1h 05m

£144

LondonSaint Peter Port

LHR London Heathrow - GCI Saint Peter Port Guernsey

LHRGCI

London Heathrow

Sun 25/10

12:00-13:00

Nonstop1h 00m

Saint Peter Port Guernsey

Thu 29/10

13:50-14:55

Nonstop1h 05m

£149

LondonSaint Peter Port

LHR London Heathrow - GCI Saint Peter Port Guernsey

LHRGCI

London Heathrow

Sun 8/11

12:00-13:00

Nonstop1h 00m

Saint Peter Port Guernsey

Thu 12/11

13:50-14:55

Nonstop1h 05m

£160

LondonSaint Peter Port

LHR London Heathrow - GCI Saint Peter Port Guernsey

LHRGCI

London Heathrow

Sat 31/10

12:00-13:00

Nonstop1h 00m

Saint Peter Port Guernsey

Sat 7/11

13:50-14:55

Nonstop1h 05m

£160
Cheapest one-way
Fastest single journey

LondonSaint Peter Port

LHR London Heathrow - GCI Saint Peter Port Guernsey

LHRGCI

London Heathrow

Mon 16/11

12:00-13:00

Nonstop1h 00m

£73

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 20 resultsSorted by cheapest first
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

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Guernsey

What is the cheapest time of day to fly from LHR to GG?

When flying from London Heathrow Airport to Guernsey, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to Guernsey

The most flights from LHR to GG0 are scheduled on a Friday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Guernsey

Read through reviews of airlines operating flights from London Heathrow Airport to Guernsey, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,187 reviews
Check prices

Boarding

7.0

Overall

6.7

Entertainment

6.5

Crew

7.7

Food

6.4

Comfort

6.8

Reviews

1 / 20
6.0
Good

David,Jan 2026

LHR - MAD

It was a very old and tried plane. Lots of duck tape holding things together. Staff and food very good. Boarding was chaos at Madrid. Arrival in Lima swift and effective.
British Airways
6.7
Okay
8,187 reviews
British Airways
6.7
Okay
8,187 reviews
Check prices

Boarding

7.0

Overall

6.7

Entertainment

6.5

Crew

7.7

Food

6.4

Comfort

6.8

Reviews

1 / 20
6.0
Good

David,Jan 2026

LHR - MAD

It was a very old and tried plane. Lots of duck tape holding things together. Staff and food very good. Boarding was chaos at Madrid. Arrival in Lima swift and effective.

Related info for your journey

  • How long is the flight from London Heathrow Airport to Guernsey?

    British Airways can get you from London Heathrow Airport to Guernsey in just under 1h. Your travel time will be generally consistent. Airlines will cover a distance of 169 mi. Generally, flights for this route are direct.

  • What are the cheapest flights from London Heathrow Airport to Guernsey?

    While on average a flight from London Heathrow Airport to Guernsey is generally £152, our data shows the cheapest flight currently is £134. When looking at the most popular route, (London Heathrow - Saint Peter Port Guernsey), you can expect to pay £97 for that flight.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Heathrow to Guernsey

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£85Average£117FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aurigny AirCheapest£111Average£143FlexibilityNo 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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