Cheap Flights from Belfast (BELF) to Rennes (RNS)

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Flight deals from Belfast to Rennes Airport

Looking for a cheap last-minute deal or the best return flight from Belfast to Rennes Airport? If you want to travel next month, return fares start from £174. Find the lowest prices on one-way and return tickets right here.
Is this a good flight price? We’ll tell you.We compare today’s Belfast to Rennes Airport prices with what travellers usually pay, so you can see if now’s a good time to book, or if it’s worth waiting.

Find the cheapest month to fly from Belfast to Rennes

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Belfast to Rennes flights are currently cheapest in April.

Belfast to Rennes: Alternative routes

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

Belfast to Rennes: Flight information

The things to know before you go.
Cheapest flight found£163
Cheapest month to flyMarch

Finding cheap flights from Belfast to Rennes: Frequently asked questions

The best price we found for a return flight from Belfast to Rennes is £163. 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 Belfast to Rennes. But we found flights with one stop from £163.
As of March 2026, there are no flights flying from Belfast to Rennes.
The cheapest month to fly from Belfast to Rennes is usually March.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Rennes Airport on Friday, 20 March 2026.
No airlines currently offer direct flights between Belfast 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.
The cheapest airline that flies to Rennes is easyJet .

Flying from Belfast to Rennes - Saint Jacques Airport (RNS): What you need to know

  • Rennes is one hour ahead of Belfast. Rennes - Saint Jacques Airport is located in Rennes, which operates on the UTC+1 timezone.

  • Leave enough time to catch your flight from Belfast to RNS. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • During popular months such as June, you'll want to get to the airport earlier than usual. Arrive two hours before a domestic departure and four hours ahead of an international flight when you fly during a peak period in general.

Airports in Belfast

Belfast International Airport (BFS)

  • Stopovers are the perfect opportunity to take a break from travelling and maybe even explore a different city. When searching for cheap flights from Belfast to RNS departing from Belfast International Airport (BFS), deselect the 'Direct flights only' box to discover where you can stop along the way. Your journey might pause in:

    • Amsterdam Schiphol Airport (AMS)

    • Paris Charles de Gaulle Airport (CDG)

    • London Gatwick Airport (LGW)

  • Located around 19 kms (12 miles) from the centre of Belfast, BFS can be reached in about 25 minutes by car, depending on traffic. The journey on public transport will take roughly 45 minutes.

  • Want a leisurely start to your trip? Stay near Belfast International Airport. Whether you've booked an early flight from Belfast to Rennes - Saint Jacques Airport or want to avoid feeling rushed, these hotels have you covered:

  • When it comes to Belfast International Airport's on-time performance, 68% of flights meet their scheduled arrival time.

George Best Belfast City Airport (BHD)

  • Break up your flight from Belfast to Rennes - Saint Jacques Airport with a stop at Frankfurt Airport (FRA). A major stopover between George Best Belfast City Airport and RNS, it's a great opportunity to unwind before your onward flight.

  • BHD is around 5 kms (3 miles) from central Belfast. It'll take 15 minutes or so to get to the airport by car from the city centre. Public transport takes approximately 25 minutes.

  • Flying out early in the morning? Think about staying at one of these accommodation options near George Best Belfast City Airport the day before your Belfast to RNS flight:

  • 69% of flights taking off from George Best Belfast City Airport make it to their destination as expected.

About Rennes - Saint Jacques Airport (RNS)

Getting from Rennes - Saint Jacques Airport (RNS) to central Rennes

  • Central Rennes is around 6 kms (4 miles) from Rennes - Saint Jacques Airport and takes about 15 minutes to reach by car. Work out your options for getting into the city, whether that's with a car hire, taxi or ride-share.

  • Travelling by public transport will take you around 25 minutes.

How to find the cheapest flights from Belfast to Rennes - Saint Jacques Airport (RNS)

  • The cheapest price we've found for a one-way ticket from Belfast to Rennes - Saint Jacques Airport is £91. For a return flight on this route, the best price is £163. Depending on the availability and when you book, these fares could change.

  • To pick up cheap flights from Belfast to RNS, book ahead. Airlines generally offer lower prices when flights are first released.

  • Affordable Belfast to Rennes - Saint Jacques Airport tickets are easier to find if your travel dates are flexible. Use the 'Whole month' tool to compare fares throughout the month and then choose the cheapest day.

  • There's no need to search every day to find out if fares have dropped when you create a Price Alert. We'll let you know when there's a better deal on plane tickets from Belfast to RNS.

  • Tailor your travel plans using filters. Select your preferred departure and arrival times, airlines and total journey duration. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from Belfast to Rennes - Saint Jacques Airport.

The best time to fly from Belfast to Rennes - Saint Jacques Airport (RNS)

  • October is the busiest month for flights from Belfast to Rennes - Saint Jacques Airport (RNS). Plan your visit to Rennes in January if you'd rather avoid peak season.

  • The warmest month in Rennes is July, with temperatures ranging between 11ºC and 28ºC. Book your Belfast to RNS plane ticket then if this is the type of weather you enjoy.

  • January has temperatures of between 0ºC and 10ºC. Search for cheap tickets from Belfast to Rennes - Saint Jacques Airport around that time if you like cooler conditions.

More about Rennes

  • When it comes to searching for somewhere to lay your head, you'll find the top stays in Rennes right here. Check out these options after you've booked your flight from Belfast to Rennes - Saint Jacques Airport:

  • La forêt de Brocéliande and Centre Historique de Rennes are a couple of major attractions to put on your Rennes must-do list. Keep the adventure rolling by checking out Cathédrale St-Pierre de Rennes.

Explore more of France

  • You've done Rennes, now it's time to discover other corners of France. Journey around 97 kms (60 miles) south to Nantes to tick off its top attractions. From Machines of the Isle Nantes to Chateau des Ducs de Bretagne and La Machine Association, you'll have a packed itinerary ahead.

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