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Cheap flights from Southampton to Rennes from £118

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 29/11. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — RNS
5 dic — 12 dic1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Rennes

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) 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 5 novembre 2025.

Round-trip from

£254

One-way from

£118

Popular in

July

Cheapest in

March

Average price

£91
KLM
  • KLM
  • 4/12-10/12
  • 2 total stops
  • 23h 05m total
  • Southampton to Rennes
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29/11
  • 29/11
  • 2 total stops
  • 23h 45m total
  • Southampton to Rennes
Search Deals
Highest demand for flights based on searches. 34% potential increase in price (£50 potential increase over avg. return price).
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Cheapest flight prices on average. 7% potential price decrease (£7 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find flight deals from Southampton to Rennes

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Rennes
Explore the most affordable flight options available from Southampton to Rennes. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 novembre 2025.

gio 4/1208:50SOU - RNS
1 stop7h 15mKLM
mer 10/1217:30RNS - SOU
1 stop15h 50mKLM
Deal found 3/11£254
gio 4/1220:10SOU - RNS
2 stops23h 25mMultiple Airlines
mer 10/1217:05RNS - SOU
3 stops21h 30mMultiple Airlines
Deal found 3/11£293
mar 4/1115:20SOU - RNS
1 stop18h 00mMultiple Airlines
mar 11/1111:05RNS - SOU
2 stops22h 20mMultiple Airlines
Deal found 3/11£373
ven 19/1217:30SOU - RNS
2 stops39h 50mKLM
ven 26/1217:30RNS - SOU
1 stop16h 20mKLM
Deal found 4/11£381
mar 4/1108:40SOU - RNS
1 stop7h 25mKLM
mar 11/1117:35RNS - SOU
1 stop24h 25mKLM
Deal found 3/11£411
ven 19/1208:10SOU - RNS
2 stops23h 45mMultiple Airlines
ven 26/1217:30RNS - SOU
2 stops19h 35mMultiple Airlines
Deal found 4/11£512

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton 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 5 novembre 2025.
Use the filters below to find and compare flights from Southampton to Rennes that are best for you.

Fly from

Southampton

Fly to

Rennes

Route

Depart

Return

Price

SouthamptonRennes

SOU - RNS

SOURNS

Southampton Eastleigh

gio 4/12

08:50-17:05

1 stop7h 15m

Rennes St Jacques

mer 10/12

17:30-08:20

1 stop15h 50m

£254

SouthamptonRennes

SOU - RNS

SOURNS

Southampton Eastleigh

gio 26/3

18:05-17:05

1 stop22h 00m

Rennes St Jacques

lun 30/3

16:35-08:50

1 stop17h 15m

£286

SouthamptonRennes

SOU - RNS

SOURNS

Southampton Eastleigh

gio 4/12

20:10-20:35

2 stops23h 25m

Rennes St Jacques

mer 10/12

17:05-13:35

3 stops21h 30m

£293

SouthamptonRennes

SOU - RNS

SOURNS

Southampton Eastleigh

ven 19/12

17:30-10:20

2 stops39h 50m

Rennes St Jacques

ven 26/12

17:30-08:50

1 stop16h 20m

£381

SouthamptonRennes

SOU - RNS

SOURNS

Southampton Eastleigh

sab 29/11

15:20-16:05

2 stops23h 45m

£118

SouthamptonRennes

SOU - RNS

SOURNS

Southampton Eastleigh

mer 3/12

08:55-19:35

2 stops9h 40m

£134

SouthamptonRennes

SOU - RNS

SOURNS

Southampton Eastleigh

ven 5/12

14:25-08:55

2 stops17h 30m

£142

SouthamptonRennes

SOU - RNS

SOURNS

Southampton Eastleigh

mar 2/12

20:10-19:35

2 stops22h 25m

£148

SouthamptonRennes

SOU - RNS

SOURNS

Southampton Eastleigh

gio 4/12

18:05-11:45

2 stops16h 40m

£148

SouthamptonRennes

SOU - RNS

SOURNS

Southampton Eastleigh

mer 3/12

08:40-17:00

1 stop7h 20m

£169

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Showing 1-10 of 15 results
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Best time to book a flight from Southampton to Rennes

Have a flexible travel schedule? Discover the best time to fly to Rennes from Southampton 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 Southampton to Rennes

What is the cheapest month to book a flight from Southampton to Rennes?

Currently, February is the cheapest month in which you can book a flight from Southampton to Rennes (average of £24). Flying from Southampton to Rennes in December is currently the most expensive (average of £49). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

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

  • How long is the flight from Southampton to Rennes?

    Departing from Southampton to Rennes will take you 7h 15m. The distance between Southampton and Rennes is about 200 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Southampton 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.

  • What is the cheapest month to book a flight from Southampton to Rennes?

    Currently, February is the cheapest month in which you can book a flight from Southampton to Rennes (average of £24). Flying from Southampton to Rennes in December is currently the most expensive (average of £49). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Southampton to Rennes

See prices for flight routes from nearby airports that may be better suited for you.
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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 Southampton to Rennes?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Southampton to Rennes. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to Rennes from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Southampton to Rennes, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Southampton to Rennes flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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