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Cheap flights from Rennes to London from £34

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rennes to London departing on 27/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

easyJet Logo
20:25 - 20:30RNS-LGW
1h 05mdirect
easyJet Logo
17:20 - 19:35LGW-RNS
1h 15mdirect
£69easyJet
Find Deal
Mon, 17 Nov - Wed, 19 Nov
easyJet Logo
20:20 - 20:25RNS-LGW
1h 05mdirect
easyJet Logo
18:20 - 20:35LGW-RNS
1h 15mdirect
£70easyJet
Find Deal
Wed, 5 Nov - Fri, 7 Nov
easyJet Logo
16:50 - 16:55RNS-LGW
1h 05mdirect
easyJet Logo
17:20 - 19:35LGW-RNS
1h 15mdirect
£70easyJet
Find Deal
Sun, 23 Nov - Wed, 26 Nov
easyJet Logo
09:40 - 09:45RNS-LGW
1h 05mdirect
easyJet Logo
18:20 - 20:35LGW-RNS
1h 15mdirect
£71easyJet
Find Deal
Sat, 1 Nov - Fri, 7 Nov
Multiple Airlines Logo
14:10 - 22:35RNS-LGW
9h 25m1 stop
Multiple Airlines Logo
17:20 - 19:35LGW-RNS
1h 15mdirect
£103Multiple Airlines
Find Deal
Sun, 23 Nov - Wed, 26 Nov
Multiple Airlines Logo
20:25 - 20:30RNS-LGW
1h 05mdirect
Multiple Airlines Logo
21:05 - 13:40LGW-RNS
15h 35m1 stop
£106Multiple Airlines
Find Deal
Mon, 8 Dec - Sat, 13 Dec
Air France Logo
11:05 - 13:45RNS-LHR
3h 40m1 stop
Air France Logo
19:20 - 10:20LHR-RNS
14h 00m1 stop
£169Air France
Find Deal
Fri, 7 Nov - Sat, 15 Nov
Air France Logo
11:05 - 13:45RNS-LHR
3h 40m1 stop
Air France Logo
19:25 - 10:20LHR-RNS
13h 55m1 stop
£169Air France
Find Deal
Fri, 7 Nov - Wed, 12 Nov
KLM Logo
17:35 - 20:50RNS-LHR
4h 15m1 stop
KLM Logo
06:30 - 17:00LHR-RNS
9h 30m1 stop
£176KLM
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Thu, 4 Dec - Sun, 7 Dec
KLM Logo
17:30 - 20:50RNS-LHR
4h 20m1 stop
KLM Logo
06:30 - 17:00LHR-RNS
9h 30m1 stop
£177KLM
Find Deal
Fri, 21 Nov - Sun, 23 Nov

Air France flights from Rennes to London

Our best Air France deals on Rennes to London flight tickets
Air France
7 Nov
RNS11:05Rennes St Jacques
3h 40m
1 stop
LHR13:45London Heathrow
15 Nov
LHR19:20London Heathrow
14h 00m
1 stop
RNS10:20Rennes St Jacques
£169
Find similar
Air France
7 Nov
RNS11:05Rennes St Jacques
3h 40m
1 stop
LHR13:45London Heathrow
12 Nov
LHR19:25London Heathrow
13h 55m
1 stop
RNS10:20Rennes St Jacques
£169
Find similar
Air France
4 Dec
RNS11:05Rennes St Jacques
3h 40m
1 stop
LHR13:45London Heathrow
7 Dec
LHR15:00London Heathrow
18h 20m
1 stop
RNS10:20Rennes St Jacques
£171
Find similar

KLM flights from Rennes to London

Our best KLM deals on Rennes to London flight tickets
KLM
4 Dec
RNS17:35Rennes St Jacques
4h 15m
1 stop
LHR20:50London Heathrow
7 Dec
LHR06:30London Heathrow
9h 30m
1 stop
RNS17:00Rennes St Jacques
£176
Find similar
KLM
21 Nov
RNS17:30Rennes St Jacques
4h 20m
1 stop
LHR20:50London Heathrow
23 Nov
LHR06:30London Heathrow
9h 30m
1 stop
RNS17:00Rennes St Jacques
£177
Find similar
KLM
7 Nov
RNS11:05Rennes St Jacques
6h 00m
2 stops
LHR16:05London Heathrow
10 Nov
LHR11:45London Heathrow
4h 15m
1 stop
RNS17:00Rennes St Jacques
£180
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Rennes to London 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 18 September 2025.
Use the filters below to find and compare flights from Rennes to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Mon 17/11

20:25-20:30

Nonstop1h 05m

London Gatwick

Wed 19/11

17:20-19:35

Nonstop1h 15m

£69

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Wed 5/11

20:20-20:25

Nonstop1h 05m

London Gatwick

Fri 7/11

18:20-20:35

Nonstop1h 15m

£70

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Sun 23/11

16:50-16:55

Nonstop1h 05m

London Gatwick

Wed 26/11

17:20-19:35

Nonstop1h 15m

£70

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Sat 1/11

09:40-09:45

Nonstop1h 05m

London Gatwick

Fri 7/11

18:20-20:35

Nonstop1h 15m

£71

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Sun 23/11

14:10-22:35

1 stop9h 25m

London Gatwick

Wed 26/11

17:20-19:35

Nonstop1h 15m

£103

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Mon 8/12

20:25-20:30

Nonstop1h 05m

London Gatwick

Sat 13/12

21:05-13:40

1 stop15h 35m

£106

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Fri 7/11

11:05-13:45

1 stop3h 40m

London Heathrow

Sat 15/11

19:20-10:20

1 stop14h 00m

£169

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Fri 7/11

11:05-13:45

1 stop3h 40m

London Heathrow

Wed 12/11

19:25-10:20

1 stop13h 55m

£169

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Thu 4/12

17:35-20:50

1 stop4h 15m

London Heathrow

Sun 7/12

06:30-17:00

1 stop9h 30m

£176

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Fri 21/11

17:30-20:50

1 stop4h 20m

London Heathrow

Sun 23/11

06:30-17:00

1 stop9h 30m

£177

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Rennes to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Rennes and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Rennes is in March. Flight prices, which tend to average around £72, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Rennes averaging around £78.

What is the cheapest day to depart on your flight to London?

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £99. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Rennes to London for around £203.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £87. Flights in the afternoon are often more expensive, with an average ticket price of £150.

What is the cheapest Rennes St Jacques to London flight route?

Fly from Rennes St Jacques to London Gatwick for the best Rennes St Jacques - London flight prices

What cabin class options are available on Rennes St Jacques to London flights?

There is only 1 cabin class available to choose from on Rennes St Jacques to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Rennes to London flights?

No. A direct flight is the cheapest option for a flight between Rennes to London.

How have Rennes to London flight prices changed over time?

As of September 2025, prices for Rennes to London flights are approximately 25% more expensive when compared to flights at the same time last year.

When to book flights from Rennes to London

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

Cheap Rennes to London (RNS to LON) flight deals and tips

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

Fastest flight time

1h 05m

Direct flights

Every day

Airports in London

1 airport
The fastest flight from Rennes to London takes 1h 05m
Direct flights go from Rennes to London every day.
There is 1 airport near London: London Gatwick (LGW)
Search flight deals

  • How far is Rennes St Jacques to London by plane?

    The straight-line distance from Rennes St Jacques to London is 243.8 mi. A reasonable flight in good conditions will take 1h 05m.

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rennes St Jacques Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Rennes to London?

  • What is the most popular airline from Rennes to London?

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Luton
Milton Keynes
Maidstone
Gatwick
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Worthing
Chelmsford
Dover
Hayes
Dartford
Winchester
Hounslow
Stansted

Why use momondo?

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

It is quick and easy to find Rennes to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Flights from Rennes to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Rennes to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Rennes to London 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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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport