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Cheap flights from Rennes to London from £245

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Rennes to London departing on 31/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
KLM Logo
14:25 - 08:35
RNS
-
SOU
19h 10m
1 stop
KLM Logo
09:15 - 16:35
SOU
-
RNS
6h 20m
1 stop
£245KLM
Tue, 31 Mar - Sat, 4 Apr
KLM Logo
14:25 - 08:35
RNS
-
SOU
19h 10m
1 stop
KLM Logo
17:20 - 13:55
SOU
-
RNS
19h 35m
1 stop
£262KLM
Sun, 26 Apr - Sun, 3 May
KLM Logo
14:25 - 16:50
RNS
-
SOU
3h 25m
1 stop
KLM Logo
09:15 - 10:20
SOU
-
RNS
24h 05m
2 stops
£267KLM
Tue, 31 Mar - Sat, 4 Apr
KLM Logo
14:25 - 08:35
RNS
-
SOU
19h 10m
1 stop
KLM Logo
17:20 - 10:20
SOU
-
RNS
16h 00m
2 stops
£276KLM
Sun, 26 Apr - Sun, 3 May
KLM Logo
14:25 - 08:35
RNS
-
SOU
19h 10m
1 stop
KLM Logo
17:20 - 12:55
SOU
-
RNS
42h 35m
2 stops
£285KLM
Thu, 30 Apr - Thu, 7 May
KLM Logo
11:05 - 16:50
RNS
-
SOU
6h 45m
2 stops
KLM Logo
17:20 - 10:20
SOU
-
RNS
40h 00m
2 stops
£294KLM
Tue, 31 Mar - Sat, 4 Apr
KLM Logo
14:25 - 08:35
RNS
-
SOU
19h 10m
1 stop
KLM Logo
17:20 - 13:55
SOU
-
RNS
19h 35m
1 stop
£299KLM
Thu, 30 Apr - Thu, 7 May
Multiple Airlines Logo
11:05 - 20:05
RNS
-
SOU
34h 00m
3 stops
Multiple Airlines Logo
17:20 - 13:55
SOU
-
RNS
19h 35m
1 stop
£303Multiple Airlines
Sun, 26 Apr - Sun, 3 May
KLM Logo
11:05 - 08:35
RNS
-
SOU
22h 30m
2 stops
KLM Logo
17:20 - 13:55
SOU
-
RNS
19h 35m
1 stop
£307KLM
Thu, 7 May - Sun, 10 May
KLM Logo
17:35 - 07:45
RNS
-
SOU
15h 10m
1 stop
KLM Logo
17:20 - 13:55
SOU
-
RNS
19h 35m
1 stop
£312KLM
Sat, 28 Mar - Wed, 1 Apr

KLM flights from Rennes to Southampton

Our best KLM deals on Rennes to Southampton flight tickets
KLM
31 Mar
RNS14:25Rennes St Jacques
19h 10m
1 stop
SOU08:35Southampton Eastleigh
4 Apr
SOU09:15Southampton Eastleigh
6h 20m
1 stop
RNS16:35Rennes St Jacques
£245
KLM
26 Apr
RNS14:25Rennes St Jacques
19h 10m
1 stop
SOU08:35Southampton Eastleigh
3 May
SOU17:20Southampton Eastleigh
19h 35m
1 stop
RNS13:55Rennes St Jacques
£262
KLM
31 Mar
RNS14:25Rennes St Jacques
3h 25m
1 stop
SOU16:50Southampton Eastleigh
4 Apr
SOU09:15Southampton Eastleigh
24h 05m
2 stops
RNS10:20Rennes St Jacques
£266

momondo Fare Finder

 
Customise your flight search to find flights from Rennes to Southampton 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, momondo users made 279,928 searches. Data last updated 17 March 2026.
Use the filters below to find and compare flights from Rennes to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

RennesSouthampton

RNS - SOU

RNSSOU

Rennes St Jacques

Tue 31/3

14:25-08:35

1 stop19h 10m

Southampton Eastleigh

Sat 4/4

09:15-16:35

1 stop6h 20m

£245

RennesSouthampton

RNS - SOU

RNSSOU

Rennes St Jacques

Sun 26/4

14:25-08:35

1 stop19h 10m

Southampton Eastleigh

Sun 3/5

17:20-13:55

1 stop19h 35m

£262

RennesSouthampton

RNS - SOU

RNSSOU

Rennes St Jacques

Tue 31/3

14:25-16:50

1 stop3h 25m

Southampton Eastleigh

Sat 4/4

09:15-10:20

2 stops24h 05m

£266

RennesSouthampton

RNS - SOU

RNSSOU

Rennes St Jacques

Sun 26/4

14:25-08:35

1 stop19h 10m

Southampton Eastleigh

Sun 3/5

17:20-10:20

2 stops16h 00m

£276

RennesSouthampton

RNS - SOU

RNSSOU

Rennes St Jacques

Thu 30/4

14:25-08:35

1 stop19h 10m

Southampton Eastleigh

Thu 7/5

17:20-12:55

2 stops42h 35m

£285

RennesSouthampton

RNS - SOU

RNSSOU

Rennes St Jacques

Tue 31/3

11:05-16:50

2 stops6h 45m

Southampton Eastleigh

Sat 4/4

17:20-10:20

2 stops40h 00m

£294

RennesSouthampton

RNS - SOU

RNSSOU

Rennes St Jacques

Thu 30/4

14:25-08:35

1 stop19h 10m

Southampton Eastleigh

Thu 7/5

17:20-13:55

1 stop19h 35m

£299

RennesSouthampton

RNS - SOU

RNSSOU

Rennes St Jacques

Sun 26/4

11:05-20:05

3 stops34h 00m

Southampton Eastleigh

Sun 3/5

17:20-13:55

1 stop19h 35m

£303

RennesSouthampton

RNS - SOU

RNSSOU

Rennes St Jacques

Thu 7/5

11:05-08:35

2 stops22h 30m

Southampton Eastleigh

Sun 10/5

17:20-13:55

1 stop19h 35m

£307

RennesSouthampton

RNS - SOU

RNSSOU

Rennes St Jacques

Sat 28/3

17:35-07:45

1 stop15h 10m

Southampton Eastleigh

Wed 1/4

17:20-13:55

1 stop19h 35m

£312

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Rennes to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from Rennes to Southampton according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Rennes to Southampton (RNS to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rennes to Southampton

Fastest flight time

19h 10m

Direct flights

None
The fastest flight from Rennes to Southampton takes 19h 10m
There are no direct flights from Rennes to Southampton. There are no popular flight routes from Rennes to Southampton.
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  • How far is Rennes St Jacques to Southampton Eastleigh by plane?

    The straight-line distance from Rennes St Jacques to Southampton Eastleigh is 193.5 mi. In terms of flight time, this usually takes a little over 19h 10m.

  • When did momondo last update prices for flights from Rennes St Jacques Airport to Southampton Eastleigh Airport?

    Prices for flights from Rennes St Jacques Airport to Southampton Eastleigh Airport refresh daily.

  • How old do you have to be to fly from Rennes St Jacques Airport to Southampton Eastleigh Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rennes St Jacques Airport to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The required travel and health documents for your Southampton Eastleigh Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southampton Eastleigh Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Rennes to Southampton?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Rennes from Southampton. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Rennes to Southampton with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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Why use momondo?

Why should I use momondo to find a flight deal from Rennes to Southampton?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Rennes to Southampton. momondo saves you time and could save you money on your trip.

Can I find flights from Rennes to Southampton with flexible booking policies on momondo?

Yes. All flights to Southampton from Rennes on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Rennes to Southampton?

momondo provides multiple filters to help you find the best flight to Southampton from Rennes. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Rennes to Southampton right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Rennes to Southampton flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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