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C$156 Cheap Flights from London Heathrow to Rennes

Compare London Heathrow to Rennes flight deals

Find the cheapest month or even day of the year to fly to Rennes

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Flight deals from London Heathrow Airport to Rennes Airport

Looking for a cheap last-minute deal or the best return flight from London Heathrow Airport to Rennes Airport? If you want to travel next month, return fares start from C$306. Find the lowest prices on one-way and return tickets right here.
Rennes.C$156 per passenger.Departing Sat., Mar. 14.One-way flight with Vueling Airlines.Outbound indirect flight with Vueling Airlines, departs from London Heathrow on Sat., Mar. 14, arriving in Rennes.Price includes taxes and charges.From C$156, select.
Rennes.C$164 per passenger.Departing Mon., Apr. 13.One-way flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Mon., Apr. 13, arriving in Rennes.Price includes taxes and charges.From C$164, select.
Rennes.C$165 per passenger.Departing Sat., Jul. 4.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Sat., Jul. 4, arriving in Rennes.Price includes taxes and charges.From C$165, select.
Rennes.C$165 per passenger.Departing Wed., Jun. 10.One-way flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Wed., Jun. 10, arriving in Rennes.Price includes taxes and charges.From C$165, select.
Rennes.C$165 per passenger.Departing Mon., May 4.One-way flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Mon., May 4, arriving in Rennes.Price includes taxes and charges.From C$165, select.
Rennes.C$191 per passenger.Departing Fri., Sep. 11.One-way flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Fri., Sep. 11, arriving in Rennes.Price includes taxes and charges.From C$191, select.
Rennes.C$191 per passenger.Departing Sun., Oct. 11.One-way flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Sun., Oct. 11, arriving in Rennes.Price includes taxes and charges.From C$191, select.
Rennes.C$193 per passenger.Departing Tue., Jan. 5.One-way flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Tue., Jan. 5, arriving in Rennes.Price includes taxes and charges.From C$193, select.
Rennes.C$212 per passenger.Departing Sun., Aug. 9.One-way flight with Air France.Outbound indirect flight with Air France, departs from London Heathrow on Sun., Aug. 9, arriving in Rennes.Price includes taxes and charges.From C$212, select.
Rennes.C$320 per passenger.Departing Fri., Nov. 27.One-way flight with Air France.Outbound indirect flight with Air France, departs from London Heathrow on Fri., Nov. 27, arriving in Rennes.Price includes taxes and charges.From C$320, select.
Rennes.C$367 per passenger.Departing Sun., Dec. 20.One-way flight with Air France.Outbound indirect flight with Air France, departs from London Heathrow on Sun., Dec. 20, arriving in Rennes.Price includes taxes and charges.From C$367, select.

Find the cheapest month to fly from London Heathrow to Rennes

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Rennes flights are currently cheapest in March.
Mar.
from C$156
Apr.
from C$164
May
from C$165
Jun.
from C$165
Jul.
from C$165
Aug.
from C$212
Sep.
from C$191
Oct.
from C$191
Nov.
from C$320
Dec.
from C$367
Jan.
from C$193
Feb.
Find prices

London Heathrow to Rennes: Alternative routes

Compare routes from London Heathrow to Rennes below. You may find an airport to fly into that's cheaper, faster, or easier than Rennes.

Rennes

7km from central Rennes
ClosestCheapest
from C$155
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Dinard

61km from central Rennes
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London to Rennes: Flight information

The things to know before you go.
Cheapest flight foundC$155
Cheapest month to flyMarch

Finding cheap flights from London Heathrow to Rennes: Frequently asked questions

The best price we found for a return flight from London Heathrow to Rennes is C$306. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London Heathrow to Rennes. But we found flights with one or more stops from C$303.
As of March 2026, there are no flights flying from London Heathrow to Rennes.
The cheapest month to fly from London Heathrow to Rennes is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Rennes Airport on Tuesday, April 14, 2026.
No airlines currently offer direct flights between London Heathrow Airport and Rennes Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Rennes but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Rennes is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air France offers the cheapest flight tickets to Rennes.

Flying from London Heathrow Airport (LHR) to Rennes Airport (RNS): what you need to know

  • You'll likely experience bigger queues in popular months such as July and other peak periods. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.

  • If you want a stopover for your flight from London Heathrow Airport to Rennes Airport, simply deselect 'Direct flights only' and look through your options. Here are the top stopovers between LHR and RNS:

    • Marseille Provence Airport

    • Amsterdam Airport Schiphol

    • Charles de Gaulle Airport

  • To see if you need a visa to enter France, check with your carrier and the local consulate or embassy. They'll provide you with the most up-to-date information, including any other travel documents you may need after booking your cheap ticket from LHR to RNS.

How to find the cheapest flights from London Heathrow Airport (LHR) to Rennes Airport (RNS)

  • The lowest price we've seen for a one-way ticket from London Heathrow Airport to Rennes Airport is C$156. For a return flight on this route, the best price is C$306. Depending on the availability and when you book, these fares may change.

  • It's usually smart to book early if you want to find cheap flight tickets from LHR to RNS. That's because flight prices are based on demand, which tends to increase closer to departure.

  • If you're willing to be flexible with your trip dates, try using the 'Whole month' tool. It'll show you the lowest price across each month when searching for a ticket from London Heathrow Airport to Rennes Airport.

  • Getting a cheap ticket from LHR to RNS is a piece of cake with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch when the price has dropped.

  • Tailor your trip with filters. Select your departure and arrival times, total journey duration and airlines. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from London Heathrow Airport to Rennes Airport.

Handy information about London Heathrow Airport (LHR)

  • Located around 31 kilometres from central London, London Heathrow Airport can be reached in about 57 minutes by car, depending on traffic. The ride on public transport takes roughly 1 hour and 1 minute.

  • After an easy start to your trip? Stay near LHR. Whether you're on an early flight from London Heathrow Airport to Rennes Airport or just don't like being rushed, these hotels are the answer:

Arriving at Rennes Airport (RNS)

Getting from Rennes Airport (RNS) to central Rennes

  • From Rennes Airport, Rennes is approximately 11 kilometres away. It takes around 22 minutes to reach the center driving.

  • Getting to the center on public transport will take you roughly 48 minutes.

When to fly to Rennes Airport (RNS)

  • July is the busiest month for flights from London Heathrow Airport to Rennes Airport. To skip the crowds, travel to Rennes in February.

  • Lock in your flight from London Heathrow Airport to Rennes Airport for July if you want to explore Rennes during its warmest month. You can expect temperatures of between 11ºC and 28ºC.

  • January sees average temperatures of between 0ºC and 10ºC. Look for cheap flight tickets from LHR to RNS sometime around then if you want to travel when it's cooler.

More about Rennes

  • Start your Rennes trip right by finding an amazing stay. Once you've booked your flight from LHR to RNS, explore our range of accommodation options including:

  • There are so many things to see and do in this city it can be difficult to know where to start. Les Champs Libres, Microbrasserie RZN City Ales and EcoMuseum du pays de Rennes are top attractions which should be on every Rennes itinerary.

Complete your Rennes trip with hotels and a car rental

  • We don't just compare flights. Once you've booked your cheap ticket to Rennes Airport, explore our great car rental deals that'll give you the freedom and flexibility to travel around at your own pace. Next, have a look at our exclusive rates for hotels to find the ideal Rennes stay.

Plan the rest of your trip from London to Rennes

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.