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Cheap flights from Rennes to London Heathrow Airport from £90

RNS — LHR
12 Oct — 19 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

Sat 26/911:05 -
1 stop6h 30m
Sat 3/1006:15 -
1 stop5h 40m
Deal found 10/9£174
Thu 8/1014:25 -
1 stop6h 00m
Sun 11/1008:40 -
1 stop4h 15m
Deal found 9/9£174
Sun 11/1014:25 -
1 stop4h 25m
Sun 18/1019:45 -
1 stop13h 35m
Deal found 11/9£175
Wed 7/1014:25 -
1 stop4h 10m
Wed 14/1019:45 -
1 stop13h 35m
Deal found 10/9£176
Thu 8/1011:05 -
1 stop8h 30m
Tue 13/1019:45 -
1 stop13h 35m
Deal found 10/9£177
Tue 29/914:25 -
1 stop7h 30m
Tue 6/1019:45 -
1 stop13h 35m
Deal found 8/9£177
Mon 26/1016:45 -
1 stop5h 05m
Mon 2/1110:00 -
1 stop5h 15m
Deal found 11/9£178
Fri 6/1111:05 -
1 stop6h 30m
Mon 9/1117:35 -
1 stop15h 45m
Deal found 8/9£179
Sat 31/1018:10 -
1 stop14h 30m
Mon 2/1110:00 -
1 stop5h 15m
Deal found 9/9£180
Wed 23/911:05 -
1 stop6h 30m
Mon 28/920:55 -
1 stop16h 00m
Deal found 12/9£180
Wed 23/911:05 -
1 stop3h 40m
Mon 28/917:35 -
1 stop15h 45m
Deal found 12/9£181
Sat 24/1013:35 -
1 stop4h 00m
Tue 27/1010:00 -
1 stop5h 15m
Deal found 9/9£182

Find flight deals from Rennes to Heathrow

Round-trip from

£174

One-way from

£90

Popular in

August

Cheapest in

January

Average price

£106
Air France
  • Air France
  • 26/9-3/10
  • 2 total stops
  • 12h 10m total
  • Rennes to London
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KLM
  • KLM
  • 26/10-31/12
  • 1 total stop
  • 15h 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. 4% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 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

Sat 24/10

17:20-11:45

1 stop19h 25m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£92

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Wed 28/10

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

Tue 27/10

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

Fri 30/10

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

Mon 7/12

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 1/1

16:45-20:50

1 stop5h 05m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£98

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Tue 10/11

11:05-20:50

2 stops10h 45m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£109

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Wed 30/12

16:45-09:00

1 stop17h 15m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£111

RennesLondon

RNS Rennes St Jacques - LHR London Heathrow

RNSLHR

Rennes St Jacques

Fri 16/10

16:55-09:10

2 stops17h 15m

London Heathrow

Wed 31/12

00:00-00:00

Nonstop0h 00m

£120

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 31/12

00:00-00:00

Nonstop0h 00m

£120

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 24 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 £174, Air France can have you in London Heathrow Airport from Rennes in 6h 30m. 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
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Hayes
Northampton
Croydon
Colchester
Eastbourne
Brentford
Enfield
Southend-on-Sea
Barnet
Salisbury
Watford
Southall
Swindon

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Cheapflights helps you search for flights from Rennes to Heathrow 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 Rennes to Heathrow?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Rennes to Heathrow for you. Better yet — we are completely free to use.

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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