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Cheap flights from London Heathrow Airport to Guernsey from £48

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GCI
22 Aug — 29 Aug1
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
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 23 July 2026.

Sat 26/911:55
LHR
-
GCI
Nonstop1h 00m
British Airways
Mon 28/913:45
GCI
-
LHR
Nonstop1h 05m
British Airways
Deal found 21/7£131
Sat 7/1111:55
LHR
-
GCI
Nonstop1h 00m
British Airways
Sun 8/1113:50
GCI
-
LHR
Nonstop1h 05m
British Airways
Deal found 18/7£134
Fri 9/1011:55
LHR
-
GCI
Nonstop1h 00m
British Airways
Tue 13/1013:45
GCI
-
LHR
Nonstop1h 05m
British Airways
Deal found 19/7£139
Fri 9/1011:55
LHR
-
GCI
Nonstop1h 00m
British Airways
Sun 11/1013:45
GCI
-
LHR
Nonstop1h 05m
British Airways
Deal found 20/7£141
Tue 18/811:55
LHR
-
GCI
Nonstop1h 00m
British Airways
Tue 25/813:45
GCI
-
LHR
Nonstop1h 05m
British Airways
Deal found 21/7£150
Thu 30/711:55
LHR
-
GCI
Nonstop1h 00m
British Airways
Mon 3/813:45
GCI
-
LHR
Nonstop1h 05m
British Airways
Deal found 21/7£152
Wed 22/711:55
LHR
-
GCI
Nonstop1h 00m
British Airways
Sun 26/713:45
GCI
-
LHR
Nonstop1h 05m
British Airways
Deal found 19/7£154
Sat 25/711:55
LHR
-
GCI
Nonstop1h 00m
British Airways
Wed 29/713:45
GCI
-
LHR
Nonstop1h 05m
British Airways
Deal found 19/7£156

Find flight deals from Heathrow to Guernsey

Keep the following information in mind while searching for Heathrow to Guernsey flight deals. Data was last updated 23 July 2026.

Round-trip from

£131

One-way from

£48

Popular in

March

Cheapest in

December

Average price

£143

Good round-trip deal

£146 or less
British Airways
  • British Airways
  • 26/9-28/9
  • Nonstop
  • 2h 05m total
  • London to Guernsey
Search Deals
British Airways
  • British Airways
  • 23/9
  • Nonstop
  • 1h 00m total
  • London to Guernsey
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£4 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 July 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Guernsey.
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 23 July 2026.
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 - GCI

LHRGCI

London Heathrow

Sat 10/10

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Tue 13/10

13:45-14:50

Nonstop1h 05m

£144

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Tue 18/8

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Tue 25/8

13:45-14:50

Nonstop1h 05m

£150

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Sat 8/8

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Tue 11/8

13:45-14:50

Nonstop1h 05m

£196

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Mon 17/8

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Thu 20/8

13:45-14:50

Nonstop1h 05m

£198

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Sun 16/8

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Mon 17/8

13:45-14:50

Nonstop1h 05m

£199

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Fri 7/8

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Sun 9/8

13:45-14:50

Nonstop1h 05m

£202

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Fri 11/9

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Tue 15/9

13:45-14:50

Nonstop1h 05m

£205

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Tue 4/8

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Thu 6/8

13:45-14:50

Nonstop1h 05m

£210

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Wed 19/8

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Wed 26/8

13:45-14:50

Nonstop1h 05m

£226

LondonSaint Peter Port

LHR - GCI

LHRGCI

London Heathrow

Mon 10/8

11:55-12:55

Nonstop1h 00m

Saint Peter Port Guernsey

Fri 14/8

13:45-14:50

Nonstop1h 05m

£231

Flights are sorted by cheapest return flights first.

Deals found on 19/7

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
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 time of day to fly from LHR to GG?

Find hourly flight availability from Heathrow to Guernsey. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 July 2026.

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

Explore weekly flight availability from Heathrow to Guernsey. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 23 July 2026.

The most flights from LHR to GG0 are scheduled on a Monday (2 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

Get insights into the airlines that provide service to Guernsey. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Guernsey. Reviews last updated 23 July 2026.
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
8,129 reviews
Check prices

Comfort

6.8

Overall

6.7

Food

6.4

Boarding

7.0

Crew

7.7

Entertainment

6.5

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
8,129 reviews
British Airways
6.7
Okay
8,129 reviews
Check prices

Comfort

6.8

Overall

6.7

Food

6.4

Boarding

7.0

Crew

7.7

Entertainment

6.5

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

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.

  • 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 £199, our data shows the cheapest flight currently is £62. When looking at the most popular route, (London Heathrow - Saint Peter Port Guernsey), you can expect to pay £104 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

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Alternative routes for Heathrow to Guernsey

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Top 2 airlines flying from Heathrow to Guernsey

Discover the top 2 airlines 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 23 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£86Average£119FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aurigny AirCheapest£113Average£158FlexibilityNo cancel feeOn-time78%
Search Aurigny Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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