$75 Flights from Dublin (DUB) to Rennes (RNS)

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      Travelers and cabin class, 1 Adult, Economy
      Aer Lingus

      Compare Dublin 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 Dublin to Rennes

      Looking for a cheap last-minute deal or the best round-trip flight from Dublin Airport to Rennes Airport? If you want to travel next month, round-trip fares start from $181. Find the lowest prices on one-way and round-trip tickets right here.

      Find the cheapest month to fly from Dublin to Rennes from $75 one-way

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

      Direct flights from Dublin to Rennes

      Aer Lingus

      Dublin to Rennes: Alternative routes

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

      Dublin to Rennes: Flight information

      The things to know before you go.
      Cheapest flight found$75
      Cheapest month to flyOctober
      Average flight time2 hrs
      Most popular airlineAer Lingus
      Average flights per week1

      Finding cheap flights from Dublin to Rennes: Frequently asked questions

      The best price we found for a round-trip flight from Dublin to Rennes is $174. 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.
      2 hours is the average flight time from Dublin to Rennes.
      Aer Lingus flies direct from Dublin to Rennes.
      There is one flight per week flying from Dublin to Rennes, as of August 2026.
      The cheapest month to fly from Dublin to Rennes is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to Rennes Airport on Wednesday, September 30, 2026.
      Yes – the average flight time is 2 hours.
      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, Ryanair and Aer Lingus offer the cheapest flight tickets to Rennes.

      Traveling from Dublin Airport (DUB) to Rennes Airport (RNS): what you need to know

      • Hop on a direct flight from Dublin Airport to Rennes Airport and you'll be in the air for an average of 2 hours.

      • Rennes is one hour ahead of Dublin and observes the UTC+1 timezone.

      • Give yourself enough time to make your DUB to RNS flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.

      • You'll likely experience longer queues during popular months like July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a smart move.

      • Traveling to Rennes (and then exploring more of France!) is a snap with Aer Lingus. This popular carrier has direct flights from Dublin Airport to Rennes Airport.

      • Most travelers choose to fly with Aer Lingus on this route.

      • Think about adding a stopover when booking your ticket from Dublin Airport to Rennes Airport. Just uncheck 'Direct flights only' to break up your journey, or visit a new city along the way. Here's where you can stop between DUB and RNS:

        • Amsterdam Schiphol Airport

        • Frankfurt am Main Airport

        • London Gatwick Airport

      How to find the cheapest flights from Dublin Airport (DUB) to Rennes Airport (RNS)

      • The cheapest price we've seen for a one-way Dublin Airport to Rennes Airport flight is $75. A round-trip fare is currently $174. Depending on the availability and when you book, these fares can change.

      • To pick up cheap tickets from DUB to RNS, book as early as you can. Airlines typically offer their best fares when flights are first released.

      • The 'Whole month' tool shows you the cheapest flights from Dublin Airport to Rennes Airport across the entire month. It's a great way to snap up a bargain if your dates aren't set in stone.

      • There's no need to check back in every day to find out if fares have gone down when you set up a Price Alert. We'll notify you as soon as there's a better deal on cheap flights from DUB to RNS.

      • Secure the ideal flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Dublin Airport to Rennes Airport, use the 'Sort by' function. You can also filter results by airline, departure and arrival times, and number of stops.

      Handy information about Dublin Airport (DUB)

      • 77% of flights that leave from Dublin Airport touch down at their destination on schedule.

      • Central Dublin to Dublin Airport is approximately 7 miles. Depending on traffic, it'll take you about 25 minutes to get there if you're driving, ride-sharing or catching a cab.

      • Catching public transport? Expect a trip time of around 30 minutes.

      • Get your vacation off to a leisurely start by staying near DUB. Whether you're boarding an early flight from Dublin Airport to Rennes Airport or just don't want to be rushed, these hotels have you covered:

      Arriving at Rennes Airport (RNS)

      When to fly to Rennes Airport (RNS)

      • It's time to plan your dates for your flight from Dublin Airport to Rennes Airport. September is the most popular month to head to Rennes. If you like a quieter vibe, go in March.

      • The warmest month in Rennes is August, with temperatures ranging between 52ºF and 82ºF. Lock in your flights from Dublin Airport to Rennes Airport in this month if this is the type of weather you enjoy.

      • January has average temperatures of between 32ºF and 50ºF. Search for cheap tickets from DUB to RNS around that time if you want to travel in cooler conditions.

      Explore more of France

      • You've visited Rennes, now it's time to discover other corners of France. Journey about 190 miles east to Paris to check off its leading sights. From Eiffel Tower to Louvre Museum and Seine River, you'll have a full itinerary ahead.

      • Nantes is another well-known destination in France and is around 60 miles south of Rennes. No trip is complete without dropping by Machines of the Isle Nantes, Chateau des Ducs de Bretagne and Basilique Saint Nicolas.

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