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C$173 Cheap Flights from Rennes (RNS) to London Heathrow (LHR)

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      Travellers and cabin class, 1 Adult, Economy

      Compare Rennes to London Heathrow flight deals

      Find the cheapest month or even day of the year to fly to London Heathrow

      Book the best London Heathrow fare with no extra fees

      TrustScore 4.5 out of 5 4.5 out of 5 based on 1,022 reviews Trustpilot

      Flight deals from Rennes to London Heathrow

      Looking for a cheap last-minute deal or the best return flight from Rennes Airport to London Heathrow Airport? If you want to travel next month, return fares start from C$330. Find the lowest prices on one-way and return tickets right here.
      London.C$173 per passenger.Departing Wed., Apr. 21.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Wed., Apr. 21, arriving in London Heathrow.Price includes taxes and charges.From C$173, select.
      London.C$173 per passenger.Departing Tue., Sep. 22.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Tue., Sep. 22, arriving in London Heathrow.Price includes taxes and charges.From C$173, select.
      London.C$173 per passenger.Departing Sat., Jun. 5.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Sat., Jun. 5, arriving in London Heathrow.Price includes taxes and charges.From C$173, select.
      London.C$173 per passenger.Departing Sat., May 8.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Sat., May 8, arriving in London Heathrow.Price includes taxes and charges.From C$173, select.
      London.C$173 per passenger.Departing Thu., Oct. 1.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Thu., Oct. 1, arriving in London Heathrow.Price includes taxes and charges.From C$173, select.
      London.C$183 per passenger.Departing Sun., Jan. 17.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Sun., Jan. 17, arriving in London Heathrow.Price includes taxes and charges.From C$183, select.
      London.C$183 per passenger.Departing Thu., Dec. 10.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Thu., Dec. 10, arriving in London Heathrow.Price includes taxes and charges.From C$183, select.
      London.C$183 per passenger.Departing Mon., Nov. 2.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Mon., Nov. 2, arriving in London Heathrow.Price includes taxes and charges.From C$183, select.
      London.C$183 per passenger.Departing Fri., Mar. 5.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Fri., Mar. 5, arriving in London Heathrow.Price includes taxes and charges.From C$183, select.
      London.C$292 per passenger.Departing Sat., Jul. 3.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Sat., Jul. 3, arriving in London Heathrow.Price includes taxes and charges.From C$292, select.
      London.C$303 per passenger.Departing Tue., Aug. 25.One-way flight with KLM.Outbound indirect flight with KLM, departs from Rennes on Tue., Aug. 25, arriving in London Heathrow.Price includes taxes and charges.From C$303, select.

      Find the cheapest month to fly from Rennes to London Heathrow

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Rennes to London Heathrow flights are currently cheapest in September.
      Aug.
      from C$303
      Sep.
      from C$173
      Oct.
      from C$173
      Nov.
      from C$183
      Dec.
      from C$183
      Jan.
      from C$183
      Feb.
      Find prices
      Mar.
      from C$183
      Apr.
      from C$173
      May
      from C$173
      Jun.
      from C$173
      Jul.
      from C$292

      Rennes to London Heathrow: Alternative routes

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

      London City

      12km from central London
      Closest
      from C$185
      Search flights

      London Heathrow

      23km from central London
      from C$173
      Search flights

      London Gatwick

      40km from central London
      Cheapest
      from C$81
      Search flights

      London Luton

      45km from central London
      from C$128
      Search flights

      London Stansted

      49km from central London
      from C$107
      Search flights

      London Southend

      57km from central London
      from C$159
      Search flights

      Rennes to London: Flight information

      The things to know before you go.
      Cheapest flight foundC$173
      Cheapest month to flyJune

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

      The best price we found for a return flight from Rennes to London Heathrow is C$330. 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 Rennes to London Heathrow. But we found flights with one or more stops from C$330.
      As of August 2026, there are no flights flying from Rennes to London Heathrow.
      The cheapest month to fly from Rennes to London Heathrow is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Rennes Airport to London Heathrow Airport on Thursday, September 24, 2026.
      No airlines currently offer direct flights between Rennes Airport and London Heathrow 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 London Heathrow 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 London 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 London Heathrow.

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

      • Traveling over a peak time like July? Major public holidays and other high seasons can lead to longer queues at checkpoints. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

      • To break up your flight from Rennes Airport to London Heathrow Airport, think about adding a stopover. Just deselect 'Direct flights only' to find a city that interests you. The top stopovers on the RNS - LHR route include:

        • Lyon Saint-Exupery International Airport

        • Amsterdam Airport Schiphol

        • Charles de Gaulle Airport

      • Before booking your cheap ticket from RNS to LHR, check if you need a visa to enter United Kingdom. Visa and travel document requirements may differ and are updated frequently. To get the most up-to-date information, contact the nearest consulate or embassy of the country you're flying to.

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

      • C$173 is currently the lowest price for a one-way ticket from Rennes Airport to London Heathrow Airport. Return flights start from C$330. These fares can change depending on demand.

      • To get your hands on cheap flight tickets from RNS to LHR, book early. Airlines tend to offer their most competitively priced fares when flights are first made available.

      • If you can be flexible with your trip dates, use the 'Whole month' search function. It'll give you the lowest price across every month when looking for your ticket from Rennes Airport to London Heathrow Airport.

      • Create a Price Alert for cheap flight tickets from RNS to LHR. There's no need to check every day to see if airfares have dropped. We'll update you the moment the price changes.

      • Use filters to find the best trip for you. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Rennes Airport to London Heathrow Airport, use the 'Sort by' tool. You can also filter results by arrival and departure times, airline, and journey duration.

      Handy information about Rennes Airport (RNS)

      • Rennes Airport is around 11 kilometres from central Rennes. If you're ride-sharing, driving or catching a cab from the center, it'll take 22 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the travel time to be approximately 48 minutes.

      • Want a handy hotel close to RNS? If you're catching an early flight from Rennes Airport to London Heathrow Airport, these stays will have you sleeping moments from your departure lounge:

      Arriving at London Heathrow Airport (LHR)

      Getting from London Heathrow Airport (LHR) to central London

      • London Heathrow Airport to central London takes about 57 minutes in a car. It's approximately 31 kilometres away. Find out what options are available, such as cabs, car rentals or ride-sharing services.

      • When traveling by public transport, expect a journey time of around 1 hour and 1 minute.

      When to fly to London Heathrow Airport (LHR)

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

      • The warmest month in London is July, with the temperature ranging between 11ºC and 26ºC. Lock in your flights from Rennes Airport to London Heathrow Airport in this month if you like this kind of weather.

      • If you want cooler conditions, look for a cheap ticket from RNS to LHR in January. Average temperatures are between 0ºC and 9ºC then.

      More about London

      Complete your London trip with hotels and a car rental

      • After you've secured your cheap ticket to London Heathrow Airport, discover our low prices and exclusive rates for hotels. You can also compare a range of car rental companies in one go to get the best car rental price for your London vacation.

      Plan the rest of your trip from Rennes to London

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.