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Cheap flights from London Heathrow Airport to Rennes from £93

LHR — RNS
30 Nov — 7 Dec1
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

Thu 19/1119:20 -
1 stop14h 00m
Fri 27/1111:05 -
1 stop8h 15m
Deal found 29/10£169
Sat 5/1206:30 -
1 stop10h 10m
Mon 7/1216:45 -
1 stop5h 05m
Deal found 29/10£170
Thu 3/1210:00 -
1 stop5h 15m
Sun 6/1211:05 -
1 stop6h 30m
Deal found 28/10£171
Thu 3/1219:20 -
1 stop14h 00m
Sun 6/1211:05 -
1 stop21h 50m
Deal found 29/10£172
Sat 5/1208:40 -
1 stop8h 00m
Sun 6/1218:10 -
1 stop15h 50m
Deal found 29/10£173
Fri 6/1119:25 -
1 stop13h 55m
Mon 9/1111:05 -
1 stop11h 20m
Deal found 30/10£174
Thu 3/1208:40 -
1 stop6h 35m
Mon 7/1211:05 -
1 stop11h 20m
Deal found 26/10£175
Fri 6/1119:25 -
1 stop13h 55m
Sun 8/1111:05 -
1 stop24h 25m
Deal found 30/10£175
Tue 27/1017:35 -
1 stop15h 45m
Tue 1/1211:05 -
1 stop6h 30m
Deal found 26/10£176
Tue 24/1106:20 -
2 stops10h 20m
Tue 1/1216:45 -
1 stop5h 05m
Deal found 26/10£180
Thu 3/1206:30 -
1 stop8h 45m
Sun 6/1218:10 -
1 stop3h 40m
Deal found 30/10£181

Find flight deals from Heathrow to Rennes

Round-trip from

£169

One-way from

£92

Popular in

April

Cheapest in

January

Average price

£154
Air France
  • Air France
  • 19/11-27/11
  • 2 total stops
  • 22h 15m total
  • London to Rennes
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KLM
  • KLM
  • 14/12-31/12
  • 1 total stop
  • 8h 45m total
  • London to Rennes
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£6 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 October 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.

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Fastest return journey

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Sun 24/1

06:30-13:55

1 stop6h 25m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£93

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Sun 15/11

11:30-10:20

1 stop21h 50m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£115

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Mon 30/11

17:50-10:20

2 stops15h 30m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£119

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Sat 28/11

14:05-10:20

2 stops19h 15m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£119

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Thu 24/12

19:20-10:20

1 stop14h 00m

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 27/11

19:25-10:20

1 stop13h 55m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£128

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Fri 27/11

17:50-10:20

2 stops15h 30m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£134

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Mon 14/12

17:50-10:20

2 stops15h 30m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£141

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Sun 27/12

08:40-10:20

2 stops24h 40m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£154

LondonRennes

LHR London Heathrow - RNS Rennes St Jacques

LHRRNS

London Heathrow

Sun 6/12

06:30-10:20

2 stops26h 50m

Rennes St Jacques

Wed 31/12

00:00-00:00

Nonstop0h 00m

£155

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 22 resultsSorted by cheapest first
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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

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 0 different airlines.

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

    For as low as £190, KLM can have you in Rennes from London Heathrow Airport in 8h 45m. The distance from London Heathrow Airport to Rennes is about 242 mi.

  • 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

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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Rennes from Heathrow today and book when prices fit your budget.

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