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

Book the best Rennes fare with no extra fees

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 ج.م.‏ 11,011. Find the lowest prices on one-way and return tickets right here.

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.

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.

London to Rennes: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 5,477
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 ج.م.‏ 11,011. 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 ج.م.‏ 11,011.
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, 14 April 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.

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

  • The timezone in Rennes is UTC+1, which is one hour ahead of London.

  • To ensure you get on your LHR to RNS flight, leave enough time to check in and drop off your luggage. Arriving two hours before international departures and one hour before domestic flights is the general rule.

  • During popular months like July, it's best to get to the airport well in advance. Plan to arrive two hours before a domestic departure and four hours ahead for international flights whenever you're travelling during a high season in general.

  • If you'd like to add a stop to your trip, just deselect 'Direct flights only' when searching for your ticket from London Heathrow Airport to Rennes Airport. Here are the top stopovers between LHR and RNS:

    • Charles de Gaulle Airport

    • Marseille Provence Airport

    • Dublin Airport

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

  • ج.م.‏ 5,477 is currently the best price for a one-way London Heathrow Airport to Rennes Airport flight. Return flights start from ج.م.‏ 11,011. These prices may change depending on availability.

  • To get your hands on cheap tickets from LHR to RNS, book in advance. Airlines generally offer lower prices when flights are first released.

  • Getting cheap flights from London Heathrow Airport to Rennes Airport is easy if you're flexible with your travel plans. Use the 'Whole month' search tool to see the lowest fares throughout the month and score a great deal.

  • You won't have to check every day to find out if fares have dropped when you set up a Price Alert. We'll update you as soon as a special offer becomes available on cheap flights from LHR to RNS.

  • Pick your preferred arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from London Heathrow Airport to Rennes Airport.

Handy information about London Heathrow Airport (LHR)

  • Of the flights that depart from London Heathrow Airport, 68.18% land on schedule at their destination.

  • To reach London Heathrow Airport from central London, it takes around 55 minutes if you're going by car. Of course, this depends on traffic conditions. It's approximately 31 kilometres from the airport to the city centre.

  • Expect a trip time of around 1 hour on public transport.

  • Catching an early flight from London Heathrow Airport to Rennes Airport? Avoid the last-minute rush to the airport (and sneak in some extra snooze time) by choosing one of these hotels close to LHR:

Arriving at Rennes Airport (RNS)

  • If you're landing on a late London Heathrow Airport to Rennes Airport flight, few things beat the convenience of being close to the terminal. Grab your bags from the carousel and then be showered and relaxing not long after at one of these hotels near RNS:

  • Grab a Rennes Airport rental car and explore Rennes and beyond with your own set of wheels. Rentscape, Alamo and Enterprise are well-known companies you can book with here.

  • Booking your vehicle from Rennes Airport around one week in advance gives you the best shot at securing a great deal.

Getting from Rennes Airport (RNS) to central Rennes

  • Rennes Airport to the centre of Rennes has a drive time of around 20 minutes. It's approximately 11 kilometres away.

  • Getting to the centre on public transport takes around 50 minutes.

When to fly to Rennes Airport (RNS)

  • April is the most popular month for flights from London Heathrow Airport to Rennes Airport. For a quieter experience, go to Rennes in February.

  • The warmest month in Rennes is July, with temperatures ranging between 11ºC and 28ºC. Book your flights from London Heathrow Airport to Rennes Airport in this month if this is the type of weather you enjoy.

  • Search for cheap tickets from LHR to RNS in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC and 10ºC on average.

Explore more of France

  • Paris is just one of the many places in France waiting to be discovered after you've seen Rennes. Around 306 kilometres away to the east, top sights here include Eiffel Tower, Louvre Museum and Cathédrale Notre-Dame de Paris.

  • Nantes is another must-experience destination in France and is around 97 kilometres south of Rennes. No journey is complete without a visit to Chateau des Ducs de Bretagne, Les Machines de L'ile and Jardin des Plantes.

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