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Cheap flights from Rennes to London Heathrow Airport from £85

RNS — LHR
25 Nov — 2 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Rennes to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Rennes to Heathrow

Sat 5/1218:10 -
1 stop3h 40m
Tue 8/1210:00 -
1 stop5h 15m
Deal found 21/10£172
Tue 22/1216:45 -
1 stop5h 05m
Sat 26/1219:20 -
1 stop14h 00m
Deal found 22/10£176
Fri 4/1216:45 -
1 stop5h 05m
Mon 7/1210:00 -
1 stop5h 15m
Deal found 21/10£176
Sat 21/1111:05 -
1 stop3h 40m
Sat 28/1119:20 -
1 stop14h 00m
Deal found 22/10£177
Fri 13/1111:05 -
1 stop11h 20m
Mon 16/1114:45 -
1 stop18h 35m
Deal found 25/10£178
Sat 12/1218:10 -
1 stop17h 35m
Mon 14/1208:40 -
1 stop6h 35m
Deal found 21/10£179
Thu 19/1111:05 -
1 stop3h 40m
Thu 3/1210:00 -
1 stop5h 15m
Deal found 21/10£179
Thu 3/1216:45 -
1 stop5h 05m
Sat 12/1217:35 -
1 stop15h 45m
Deal found 22/10£180
Fri 4/1216:45 -
1 stop5h 05m
Sun 6/1208:40 -
1 stop8h 00m
Deal found 22/10£181
Fri 27/1111:05 -
1 stop8h 15m
Mon 30/1119:20 -
1 stop14h 00m
Deal found 21/10£182
Fri 6/1111:05 -
1 stop6h 30m
Sat 14/1119:20 -
1 stop14h 00m
Deal found 21/10£182
Sun 8/1111:05 -
1 stop21h 50m
Fri 13/1119:25 -
1 stop13h 55m
Deal found 22/10£183

Find flight deals from Rennes to Heathrow

Round-trip from

£172

One-way from

£85

Popular in

August

Cheapest in

March

Average price

£138
KLM
  • KLM
  • 5/12-8/12
  • 2 total stops
  • 8h 55m total
  • Rennes to London
Search Deals
18/12-31/12
  • 18/12-31/12
  • 1 total stop
  • 22h 55m total
  • Rennes to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Rennes to London Heathrow Airport that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Tue 23/2

16:45-20:50

1 stop5h 05m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£93

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Thu 31/12

16:45-07:40

1 stop15h 55m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£93

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Tue 22/12

16:45-20:50

1 stop5h 05m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£95

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Fri 4/12

16:45-20:50

1 stop5h 05m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£96
Fastest return journey

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Sun 20/12

18:10-20:50

1 stop3h 40m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£96

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Sat 27/2

18:10-20:50

1 stop3h 40m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£96

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Tue 15/12

11:05-20:50

2 stops10h 45m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£108

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Thu 3/12

16:45-20:50

1 stop5h 05m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£110

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Mon 7/12

11:05-17:00

2 stops6h 55m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£111

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Wed 24/2

11:05-17:00

2 stops6h 55m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£111

Flights are sorted by cheapest return flights first.

Deals found on 25/10

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Rennes to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Rennes with our price prediction graph.
Estimated return price

Related info for your journey

  • What airport do you fly from for flights from Rennes to London Heathrow?

    If you book a flight to London Heathrow from Rennes, you will be flying from St Jacques, which is the city’s only airport. Rennes St Jacques (RNS) is located 4.0 mi from the center of Rennes. There are 0 flights from St Jacques to London Heathrow per day from 0 different airlines.

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

    For as low as £182, Air France can have you in London Heathrow Airport from Rennes in 3h 40m. There are 242 mi between Rennes and London Heathrow Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Rennes to Heathrow 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Luton
Milton Keynes
Slough
Gatwick
Wembley
Hayes
Ilford
Croydon
Northampton
Colchester
Barnet
Eastbourne
Brentford
Southend-on-Sea
Enfield
Southall
Watford
Stratford-upon-Avon
Kingston upon Thames

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

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Can Cheapflights find flights from Rennes to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Rennes to Heathrow, users can toggle the no change fees filter when performing a flight search.

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