Find flights
When to book
FAQs

Cheap flights from Belfast to Rennes from £83

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — RNS
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Belfast to Rennes

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to Rennes
Explore the most affordable flight options available from Belfast to Rennes. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2025.

Fri 12/1221:20BFS - RNS
1 stop10h 35mMultiple Airlines
Fri 19/1217:30RNS - BFS
2 stops22h 40mMultiple Airlines
Deal found 28/10£262
Fri 12/1221:20BFS - RNS
1 stop10h 35measyJet
Fri 19/1221:05RNS - BFS
1 stop11h 35measyJet
Deal found 28/10£272

Cheap flight deals from Belfast to Rennes

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Rennes (RNS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 October 2025.

Round-trip from

£262

One-way from

£83
12/12-19/12
  • 12/12-19/12
  • 3 total stops
  • 33h 15m total
  • Belfast to Rennes
Search Deals
easyJet
  • easyJet
  • 18/2
  • 1 total stop
  • 11h 10m total
  • Belfast to Rennes
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast to Rennes that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 30 October 2025.
Use the filters below to find and compare flights from Belfast to Rennes that are best for you.

Fly from

Belfast

Fly to

Rennes

Route

Depart

Return

Price

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Fri 12/12

21:20-08:55

1 stop10h 35m

Rennes St Jacques

Fri 19/12

17:30-15:10

2 stops22h 40m

£262

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Fri 12/12

21:20-08:55

1 stop10h 35m

Rennes St Jacques

Fri 19/12

21:05-07:40

1 stop11h 35m

£272

BelfastRennes

BHD - RNS

BHDRNS

Belfast City

Tue 10/3

06:30-17:05

1 stop9h 35m

Rennes St Jacques

Wed 11/3

17:30-21:00

1 stop4h 30m

£430

BelfastRennes

BHD - RNS

BHDRNS

Belfast City

Wed 18/2

07:25-19:35

1 stop11h 10m

£83

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Tue 11/11

20:55-19:35

1 stop21h 40m

£136

BelfastRennes

BHD - RNS

BHDRNS

Belfast City

Wed 18/2

18:50-20:15

2 stops24h 25m

£144

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Tue 11/11

13:15-16:30

3 stops26h 15m

£188

BelfastRennes

BHD - RNS

BHDRNS

Belfast City

Tue 11/11

07:00-10:20

2 stops26h 20m

£231

BelfastRennes

BHD - RNS

BHDRNS

Belfast City

Tue 11/11

06:30-17:05

1 stop9h 35m

£609

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Best time to book a flight from Belfast to Rennes

Have a flexible travel schedule? Discover the best time to fly to Rennes from Belfast with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Belfast to Rennes
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Belfast to Rennes. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Rennes from Belfast?

    Located just 4.0 mi from the city center, Rennes St Jacques is the airport most travelers will use when flying to Rennes from Belfast. Booking flights from Belfast to St Jacques (RNS) should be relatively easy as there are 0 daily inbound flights from Belfast from 0 different airlines.

  • How long is the flight from Belfast to Rennes?

    A quick flight from Belfast to Rennes can take about 9h 35m. easyJet provides one of the quickest options available for as low as £430. Airlines will cover a distance of 486 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Belfast to Rennes that include hotel bookings?

    Yes. In addition to deals on Belfast to Rennes flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast to Rennes?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to Rennes.

  • Can I find deals for business class flights from Belfast to Rennes?

    Yes. Cheapflights offers flight deals from Belfast to Rennes by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Belfast to Rennes

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Nantes flights
Belfast City to Nantes flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast to Rennes?

Deals for Belfast to Rennes flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Belfast to Rennes?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast to Rennes for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Belfast to Rennes with no change fees?

Yes, we can. To see specific flights from Belfast to Rennes with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Belfast to Rennes become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Rennes from Belfast today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.