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Cheap flights from London Heathrow Airport to Rennes from £94

LHR — RNS
12 Oct — 19 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

Sun 18/1019:45 -
1 stop13h 35m
Sat 24/1013:35 -
1 stop4h 00m
Deal found 11/9£172
Thu 8/1006:30 -
1 stop6h 25m
Thu 15/1011:05 -
1 stop8h 30m
Deal found 10/9£175
Wed 7/1008:40 -
1 stop4h 15m
Wed 14/1011:05 -
1 stop8h 30m
Deal found 7/9£175
Fri 27/1120:25 -
1 stop20h 15m
Mon 7/1216:45 -
1 stop5h 05m
Deal found 8/9£176
Tue 6/1019:45 -
1 stop13h 35m
Tue 13/1014:25 -
1 stop6h 00m
Deal found 8/9£177
Thu 22/1020:55 -
1 stop16h 00m
Thu 29/1016:45 -
1 stop5h 05m
Deal found 7/9£178
Sat 3/1006:15 -
1 stop5h 40m
Sat 3/1017:20 -
1 stop4h 35m
Deal found 7/9£185
Mon 2/1120:25 -
2 stops12h 55m
Tue 10/1111:05 -
1 stop11h 20m
Deal found 9/9£189

Find flight deals from Heathrow to Rennes

Round-trip from

£172

One-way from

£94

Popular in

April

Cheapest in

January

Average price

£181
Air France
  • Air France
  • 18/10-24/10
  • 2 total stops
  • 17h 35m total
  • London to Rennes
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KLM
  • KLM
  • 8/11-31/12
  • 1 total stop
  • 10h 10m total
  • London to Rennes
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£7 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% 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

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

Fri 6/11

19:25-10:20

1 stop13h 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

Sat 7/11

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 9/10

19:45-10:20

1 stop13h 35m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£113

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Mon 28/9

15:20-10:20

1 stop18h 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 30/9

15:50-08:05

2 stops15h 15m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£118

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Sat 26/12

14:05-10:20

2 stops19h 15m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£118
Fastest return journey

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Thu 8/10

06:30-13:55

1 stop6h 25m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£124

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Fri 2/10

20:55-16:50

1 stop18h 55m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£125

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Fri 6/11

17:05-10:20

2 stops16h 15m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£125

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
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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
1,926 reviews
Check prices

Overall

6.9

Entertainment

5.5

Boarding

6.7

Food

5.9

Comfort

6.8

Crew

7.7

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
1,926 reviews
easyJet
6.9
Okay
1,926 reviews
Check prices

Overall

6.9

Entertainment

5.5

Boarding

6.7

Food

5.9

Comfort

6.8

Crew

7.7

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 £208, KLM can have you in Rennes from London Heathrow Airport in 7h 45m. 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£137Average£191FlexibilityNo cancel feeOn-time86%
Search easyJet flights

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