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Cheap flights from Rennes to London Heathrow Airport from £91

RNS — LHR
27 Sep — 4 Oct1
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

Thu 1/1011:05 -
1 stop11h 20m
Wed 7/1019:45 -
1 stop13h 35m
Deal found 28/8£174
Wed 7/1014:25 -
1 stop6h 00m
Sun 11/1008:40 -
1 stop4h 15m
Deal found 27/8£175
Thu 1/1014:25 -
1 stop7h 30m
Mon 5/1017:35 -
1 stop15h 45m
Deal found 28/8£175
Thu 1/1014:25 -
1 stop6h 00m
Thu 8/1008:40 -
1 stop4h 15m
Deal found 26/8£176
Wed 7/1014:25 -
1 stop7h 30m
Mon 12/1006:30 -
1 stop6h 25m
Deal found 24/8£177
Sat 10/1017:20 -
1 stop15h 20m
Thu 15/1008:40 -
1 stop4h 15m
Deal found 28/8£178
Fri 11/914:25 -
1 stop6h 00m
Mon 14/919:45 -
1 stop13h 35m
Deal found 26/8£179
Fri 11/914:25 -
1 stop6h 00m
Sun 13/906:30 -
1 stop6h 25m
Deal found 26/8£180
Sun 11/1014:25 -
1 stop6h 05m
Sun 18/1006:30 -
1 stop6h 25m
Deal found 27/8£181
Fri 4/1211:05 -
1 stop8h 15m
Mon 7/1210:00 -
1 stop5h 15m
Deal found 27/8£184

Find flight deals from Rennes to Heathrow

Round-trip from

£174

One-way from

£91

Popular in

August

Cheapest in

January

Average price

£164
Air France
  • Air France
  • 1/10-7/10
  • 2 total stops
  • 24h 55m total
  • Rennes to London
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KLM
  • KLM
  • 7/10
  • 1 total stop
  • 6h 00m total
  • Rennes to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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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Route

Depart

Return

Price

Cheapest return flight

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Wed 7/10

14:25-17:35

1 stop4h 10m

London Heathrow

Sun 11/10

18:35-10:20

2 stops14h 45m

£192

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Wed 7/10

14:25-19:25

1 stop6h 00m

London Heathrow

Mon 12/10

19:15-10:20

2 stops14h 05m

£192

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Sat 5/12

18:10-07:40

1 stop14h 30m

London Heathrow

Mon 7/12

20:25-10:20

2 stops12h 55m

£197

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Mon 26/10

16:45-19:15

1 stop3h 30m

London Heathrow

Sat 31/10

19:20-10:20

1 stop14h 00m

£204

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Tue 29/12

16:45-20:50

1 stop5h 05m

London Heathrow

Wed 6/1

17:35-09:50

2 stops15h 15m

£214

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Thu 18/2

13:55-19:15

1 stop6h 20m

London Heathrow

Sat 6/3

06:30-17:40

1 stop10h 10m

£225

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Fri 25/12

16:45-20:50

1 stop5h 05m

London Heathrow

Sun 3/1

06:30-17:40

1 stop10h 10m

£232
Fastest return journey

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Thu 18/2

13:55-19:15

1 stop6h 20m

London Heathrow

Mon 8/3

11:45-16:15

1 stop3h 30m

£234

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Fri 19/2

13:55-20:50

1 stop7h 55m

London Heathrow

Sun 7/3

20:25-10:20

2 stops12h 55m

£242

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Thu 29/10

16:45-20:50

1 stop5h 05m

London Heathrow

Sun 1/11

20:25-10:20

2 stops12h 55m

£242

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 22 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 £192, KLM can have you in London Heathrow Airport from Rennes in 4h 10m. There are 242 mi between Rennes and London Heathrow Airport.

  • 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
Milton Keynes
Luton
Gatwick
Wembley
Ilford
Slough
Hayes
Croydon
Northampton
Colchester
Eastbourne
Brentford
Barnet
Southall
Southend-on-Sea
Salisbury
Enfield
Kingston upon Thames
Watford

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

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