$287 Flights from Rennes (RNS) to Cardiff (CWL)

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Flight deals from Rennes to Cardiff

Looking for a cheap last-minute deal or the best round-trip flight from Rennes to Cardiff? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Rennes to Cardiff

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

Rennes to Cardiff: Alternative routes

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

Rennes to Cardiff: Flight information

The things to know before you go.
Cheapest flight found$287
Cheapest month to flyFebruary

Finding cheap flights from Rennes to Cardiff: Frequently asked questions

The best price we found for a round-trip flight from Rennes to Cardiff is $321. 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 Cardiff. But we found flights with one or more stops from $321.
There are no flights flying from Rennes to Cardiff, as of February 2026.
The cheapest month to fly from Rennes to Cardiff is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Rennes Airport to Cardiff Airport on Saturday, March 28, 2026.
No airlines currently offer direct flights between Rennes Airport and Cardiff 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 Cardiff 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 Cardiff is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, easyJet offers the cheapest flight tickets to Cardiff.

Flying from Rennes Airport (RNS) to Cardiff Airport (CWL): what you need to know

  • Cardiff is one hour behind Rennes and is in the UTC+0 timezone.

  • Arrive at the airport on time so you don't miss your RNS to CWL flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.

  • Be prepared for longer queues in popular months like April. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a smart move.

  • Pick a stopover if you prefer to break up your flight. Simply uncheck 'Direct flights only' to see your options for tickets from Rennes Airport to Cardiff Airport. Amsterdam Airport Schiphol is a top stopover on the RNS to CWL route.

How to find the cheapest flights from Rennes Airport (RNS) to Cardiff Airport (CWL)

  • The lowest price we've found for a one-way Rennes Airport to Cardiff Airport flight is $287. A return fare is currently $321. Depending on the availability and when you book, these fares could change.

  • To get your hands on cheap tickets from RNS to CWL, book as early as you can. Airlines typically offer lower prices when flights are first released.

  • The 'Whole month' search function shows you the cheapest flights from Rennes Airport to Cardiff Airport throughout the entire month. It's a great way to find a bargain if your travel plans aren't set in stone.

  • You don't need to check back in every day to find out if fares have gone down when you set up a Price Alert. We'll let you know as soon as there's a new deal on cheap flights from RNS to CWL.

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

Handy information about Rennes Airport (RNS)

  • When it comes to Rennes Airport's on-time performance, 77.88% of flights arrive within the scheduled timeframe.

  • Rennes Airport is about 7 miles from central Rennes. If you're driving, catching a cab or ride-sharing from the center, it'll take 20 minutes or so to arrive, depending on the traffic.

  • The trip on public transport usually takes 50 minutes.

  • Looking for a convenient hotel near RNS? If you're catching an early flight from Rennes Airport to Cardiff Airport, these accommodation options will put you moments from your check-in counter:

Arriving at Cardiff Airport (CWL)

  • Reserve a hotel close to CWL if you're catching a late Rennes Airport to Cardiff Airport flight. Pick one of these accommodation options and avoid the hassle of a long transfer:

  • Pick up a Cardiff Airport rental car and discover Cardiff and beyond with your own wheels. Europcar, Keddy By Europcar and Enterprise are well-known companies you can book with here.

  • To lock in the lowest price, reserve your ride from Cardiff Airport about four weeks before you travel.

Getting from Cardiff Airport (CWL) to central Cardiff

  • From Cardiff Airport, Cardiff is approximately 17 miles away. It takes around 30 minutes to drive to the center.

  • It takes roughly 1 hour 5 minutes if you're traveling by public transport.

When to fly to Cardiff Airport (CWL)

  • June is the busiest month for flights from Rennes Airport to Cardiff Airport. To skip the crowds, head to Cardiff in April.

  • The warmest month in Cardiff is July, with temperatures ranging between 52ºF and 72ºF. Book your flights from Rennes Airport to Cardiff Airport in this month if you like this kind of weather.

  • January sees average temperatures of between 32ºF and 48ºF. Look for cheap tickets from RNS to CWL sometime then if you want to travel when it's cooler.

Explore more of United Kingdom

  • You've done Cardiff, now it's time to explore other corners of United Kingdom. Journey about 130 miles east to London to check off its leading sights. From Big Ben to The British Museum and Buckingham Palace, you'll have a full itinerary ahead.

  • Birmingham is another well-known destination in United Kingdom and is around 90 miles north-east of Cardiff. No trip is complete without seeing Cadbury World, The Library of Birmingham and National Sea Life Centre.

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