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Cheap flights from Belfast to Rennes from £117

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 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — RNS
12 Apr — 19 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap 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 13 March 2026.

Mon 16/310:20
BFS
-
RNS
1 stop8h 20m
easyJet
Fri 20/321:05
RNS
-
BFS
1 stop11h 35m
easyJet
Deal found 11/3£180
Mon 16/310:15
BHD
-
RNS
1 stop8h 25m
easyJet
Fri 20/321:05
RNS
-
BHD
1 stop13h 15m
easyJet
Deal found 11/3£188
Fri 3/417:30
BHD
-
RNS
1 stop22h 05m
KLM
Sun 5/414:25
RNS
-
BHD
1 stop19h 55m
KLM
Deal found 10/3£204
Fri 20/318:00
BFS
-
RNS
1 stop13h 55m
Multiple Airlines
Tue 24/311:05
RNS
-
BFS
2 stops24h 40m
Multiple Airlines
Deal found 9/3£208
Fri 3/421:30
BFS
-
RNS
1 stop18h 30m
easyJet
Sun 5/416:15
RNS
-
BFS
1 stop8h 10m
easyJet
Deal found 10/3£209
Mon 16/322:20
BFS
-
RNS
3 stops35h 00m
Multiple Airlines
Fri 20/321:05
RNS
-
BFS
1 stop12h 45m
Multiple Airlines
Deal found 11/3£216
Sun 26/421:05
BFS
-
RNS
1 stop17h 20m
easyJet
Sun 3/516:25
RNS
-
BFS
1 stop7h 15m
easyJet
Deal found 12/3£230
Fri 3/417:05
BFS
-
RNS
2 stops22h 30m
Multiple Airlines
Tue 14/418:00
RNS
-
BFS
2 stops16h 20m
Multiple Airlines
Deal found 9/3£249
Sun 26/422:10
BFS
-
RNS
3 stops35h 10m
Multiple Airlines
Sun 3/516:25
RNS
-
BFS
1 stop7h 15m
Multiple Airlines
Deal found 12/3£260
Fri 20/306:30
BHD
-
RNS
1 stop9h 35m
KLM
Tue 24/317:35
RNS
-
BHD
1 stop4h 25m
KLM
Deal found 9/3£270
Mon 16/310:15
BHD
-
RNS
1 stop8h 25m
Multiple Airlines
Fri 20/310:50
RNS
-
BHD
2 stops23h 30m
Multiple Airlines
Deal found 11/3£274
Fri 3/421:30
BFS
-
RNS
2 stops18h 05m
Multiple Airlines
Sun 5/411:05
RNS
-
BFS
2 stops13h 20m
Multiple Airlines
Deal found 10/3£275

Find 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 13 March 2026.

Round-trip from

£204

One-way from

£117
KLM
  • KLM
  • 3/4-5/4
  • 2 total stops
  • 42h 00m total
  • Belfast to Rennes
Search Deals
31/3
  • 31/3
  • 2 total stops
  • 22h 55m 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 13 March 2026.
Use the filters below to find and compare flights from Belfast to Rennes that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Sun 26/4

21:05-15:25

1 stop17h 20m

Rennes St Jacques

Sun 3/5

16:25-22:40

1 stop7h 15m

£230

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Sun 26/4

22:10-10:20

3 stops35h 10m

Rennes St Jacques

Sun 3/5

16:25-22:40

1 stop7h 15m

£260

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Fri 3/4

21:30-16:35

2 stops18h 05m

Rennes St Jacques

Sun 5/4

11:05-23:25

2 stops13h 20m

£275

BelfastRennes

BHD - RNS

BHDRNS

Belfast City

Fri 3/4

17:30-10:20

2 stops15h 50m

Rennes St Jacques

Sun 5/4

11:05-09:20

2 stops23h 15m

£289

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Fri 3/4

22:00-17:00

2 stops18h 00m

Rennes St Jacques

Sun 5/4

16:15-22:40

1 stop7h 25m

£309

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Fri 3/4

17:05-16:35

2 stops22h 30m

Rennes St Jacques

Mon 13/4

08:50-21:30

2 stops13h 40m

£319

BelfastRennes

BHD - RNS

BHDRNS

Belfast City

Fri 3/4

15:25-10:20

3 stops17h 55m

Rennes St Jacques

Sun 5/4

17:40-08:55

2 stops16h 15m

£337

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Sat 4/4

10:40-10:20

3 stops22h 40m

Rennes St Jacques

Mon 13/4

10:30-16:15

3 stops30h 45m

£341

BelfastRennes

BHD - RNS

BHDRNS

Belfast City

Fri 3/4

17:30-16:35

1 stop22h 05m

Rennes St Jacques

Sun 12/4

14:25-09:20

1 stop19h 55m

£344

BelfastRennes

BFS - RNS

BFSRNS

Belfast Intl

Fri 3/4

17:05-16:35

2 stops22h 30m

Rennes St Jacques

Sun 12/4

12:30-22:40

2 stops11h 10m

£403

Flights are sorted by cheapest return flights first.

Deals found on 9/3

Showing 1-10 of 19 resultsSorted by cheapest first
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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 15h 50m. easyJet provides one of the quickest options available for as low as £289. 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

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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

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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.

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