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Cheap flights from London Heathrow Airport to Rennes from £64

LHR — RNS
18 Oct — 25 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Rennes

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Rennes

Mon 26/1006:30 -
1 stop8h 40m
Tue 3/1116:45 -
1 stop5h 05m
Deal found 18/9£174
Sun 4/1019:45 -
1 stop13h 35m
Thu 8/1014:25 -
1 stop6h 00m
Deal found 18/9£174
Sat 31/1019:20 -
1 stop14h 00m
Sat 7/1118:10 -
1 stop14h 30m
Deal found 16/9£175
Wed 7/1008:40 -
1 stop4h 15m
Sun 11/1014:25 -
1 stop7h 30m
Deal found 15/9£176
Wed 23/919:45 -
1 stop13h 35m
Sat 26/911:05 -
1 stop8h 30m
Deal found 14/9£176
Mon 2/1108:40 -
1 stop6h 35m
Mon 9/1116:50 -
1 stop5h 00m
Deal found 18/9£177
Wed 7/1020:55 -
1 stop16h 00m
Wed 14/1014:25 -
1 stop18h 15m
Deal found 15/9£179
Sat 19/919:45 -
1 stop13h 35m
Sat 26/911:05 -
1 stop6h 30m
Deal found 14/9£179
Wed 28/1019:25 -
1 stop13h 55m
Sun 1/1111:05 -
1 stop21h 50m
Deal found 14/9£180
Sun 20/917:35 -
1 stop15h 45m
Sat 26/911:05 -
1 stop11h 20m
Deal found 14/9£181
Mon 26/1020:25 -
1 stop18h 50m
Tue 3/1110:35 -
2 stops8h 45m
Deal found 18/9£182

Find flight deals from Heathrow to Rennes

Round-trip from

£174

One-way from

£93

Popular in

April

Cheapest in

January

Average price

£182
KLM
  • KLM
  • 26/10-3/11
  • 2 total stops
  • 13h 45m total
  • London to Rennes
Search Deals
KLM
  • KLM
  • 1/11-31/12
  • 1 total stop
  • 21h 25m total
  • London to Rennes
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£8 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£7 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 London Heathrow Airport to Rennes that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Tue 17/11

08:40-16:15

1 stop6h 35m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£96

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Wed 30/12

06:30-16:15

1 stop8h 45m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£97

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Tue 27/10

06:30-16:15

1 stop8h 45m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£97

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Sat 28/11

16:25-10:20

2 stops16h 55m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£111

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Fri 8/1

17:50-10:20

2 stops15h 30m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£111

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Sat 28/11

19:20-10:20

1 stop14h 00m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£115

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Wed 10/3

06:20-17:40

2 stops10h 20m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£121

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Thu 26/11

20:25-10:20

2 stops12h 55m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£124

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Thu 7/1

20:25-10:20

2 stops12h 55m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£125
Fastest return journey

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Sun 11/10

08:40-13:55

1 stop4h 15m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£129

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to Rennes

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

Reviews of airlines servicing Rennes

Get a feel of what it's like to fly with easyJet from London Heathrow Airport to Rennes by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,930 reviews
Check prices

Comfort

6.8

Crew

7.7

Boarding

6.7

Food

5.9

Overall

6.9

Entertainment

5.5

Reviews

1 / 20
2.0
Mediocre

Aleksandra,Aug 2026

LGW - RMU

Awful plane, old, rickety, ripped seats in places, rubbish left from previous passengers. The crew clothing was tatty, old, unkempt. I have never experienced anything like this. Ryanair had better standards.
easyJet
6.9
Okay
1,930 reviews
easyJet
6.9
Okay
1,930 reviews
Check prices

Comfort

6.8

Crew

7.7

Boarding

6.7

Food

5.9

Overall

6.9

Entertainment

5.5

Reviews

1 / 20
2.0
Mediocre

Aleksandra,Aug 2026

LGW - RMU

Awful plane, old, rickety, ripped seats in places, rubbish left from previous passengers. The crew clothing was tatty, old, unkempt. I have never experienced anything like this. Ryanair had better standards.

Related info for your journey

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

    Located just 4.0 mi from the city center, Rennes St Jacques is the airport most travelers will use when flying to Rennes from London Heathrow. Booking flights from London Heathrow to St Jacques (RNS) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 1 airline.

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

    For as low as £177, Air France can have you in Rennes from London Heathrow Airport in 6h 35m. The distance from London Heathrow Airport to Rennes is about 242 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Rennes 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

Top airline flying from Heathrow to Rennes

AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£139Average£193FlexibilityNo cancel feeOn-time86%
Search easyJet flights

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Need flexible booking options for your flight to Rennes from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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