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Cheap flights from Rennes to London from £125

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 20/8. 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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Cheap return flights

KLM Logo
17:30 - 20:50RNS-LHR
4h 20m1 stop
KLM Logo
11:15 - 17:05LHR-RNS
4h 50m1 stop
£184KLM
Find Deal
Wed, 29 Oct - Sat, 1 Nov
KLM Logo
17:30 - 20:50RNS-LHR
4h 20m1 stop
KLM Logo
11:45 - 17:00LHR-RNS
4h 15m1 stop
£184KLM
Find Deal
Fri, 7 Nov - Sun, 9 Nov
Air France Logo
11:05 - 13:45RNS-LHR
3h 40m1 stop
Air France Logo
19:20 - 10:20LHR-RNS
14h 00m1 stop
£185Air France
Find Deal
Thu, 4 Dec - Mon, 8 Dec
KLM Logo
17:35 - 20:50RNS-LHR
4h 15m1 stop
KLM Logo
08:40 - 17:05LHR-RNS
7h 25m1 stop
£186KLM
Find Deal
Sat, 13 Dec - Tue, 16 Dec
KLM Logo
17:30 - 20:50RNS-LHR
4h 20m1 stop
KLM Logo
10:00 - 17:05LHR-RNS
6h 05m1 stop
£187KLM
Find Deal
Fri, 7 Nov - Tue, 11 Nov
KLM Logo
17:35 - 20:50RNS-LHR
4h 15m1 stop
KLM Logo
08:40 - 17:05LHR-RNS
7h 25m1 stop
£188KLM
Find Deal
Thu, 6 Nov - Tue, 11 Nov
KLM Logo
16:35 - 20:55RNS-LHR
5h 20m1 stop
KLM Logo
08:40 - 16:20LHR-RNS
6h 40m1 stop
£193KLM
Find Deal
Wed, 24 Sep - Sat, 27 Sep
Logo
17:35 - 20:50RNS-LHR
4h 15m1 stop
Logo
09:00 - 17:30LHR-RNS
7h 30m2 stops
£197
Find Deal
Thu, 4 Dec - Sun, 7 Dec
Air France Logo
11:45 - 16:35RNS-LHR
5h 50m1 stop
Air France Logo
19:45 - 09:35LHR-RNS
12h 50m1 stop
£204Air France
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Wed, 10 Sep - Sat, 13 Sep
Air France Logo
10:45 - 21:25RNS-LHR
11h 40m1 stop
Air France Logo
19:45 - 17:45LHR-RNS
21h 00m2 stops
£219Air France
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Fri, 3 Oct - Sun, 5 Oct

KLM flights from Rennes to London Heathrow Airport

Our best KLM deals on Rennes to London Heathrow Airport flight tickets
KLM
29 Oct
RNS17:30Rennes St Jacques
4h 20m
1 stop
LHR20:50London Heathrow
1 Nov
LHR11:15London Heathrow
4h 50m
1 stop
RNS17:05Rennes St Jacques
£184
Find similar
KLM
7 Nov
RNS17:30Rennes St Jacques
4h 20m
1 stop
LHR20:50London Heathrow
9 Nov
LHR11:45London Heathrow
4h 15m
1 stop
RNS17:00Rennes St Jacques
£184
Find similar
KLM
13 Dec
RNS17:35Rennes St Jacques
4h 15m
1 stop
LHR20:50London Heathrow
16 Dec
LHR08:40London Heathrow
7h 25m
1 stop
RNS17:05Rennes St Jacques
£186
Find similar

Air France flights from Rennes to London Heathrow Airport

Our best Air France deals on Rennes to London Heathrow Airport flight tickets
Air France
4 Dec
RNS11:05Rennes St Jacques
3h 40m
1 stop
LHR13:45London Heathrow
8 Dec
LHR19:20London Heathrow
14h 00m
1 stop
RNS10:20Rennes St Jacques
£185
Find similar
Air France
10 Sept
RNS11:45Rennes St Jacques
5h 50m
1 stop
LHR16:35London Heathrow
13 Sept
LHR19:45London Heathrow
12h 50m
1 stop
RNS09:35Rennes St Jacques
£204
Find similar
Air France
3 Oct
RNS10:45Rennes St Jacques
11h 40m
1 stop
LHR21:25London Heathrow
5 Oct
LHR19:45London Heathrow
21h 00m
2 stops
RNS17:45Rennes St Jacques
£219
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Rennes to London Heathrow Airport 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 1 August 2025.
Use the filters below to find and compare flights from Rennes to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Wed 29/10

17:30-20:50

1 stop4h 20m

London Heathrow

Sat 1/11

11:15-17:05

1 stop4h 50m

£184

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Fri 7/11

17:30-20:50

1 stop4h 20m

London Heathrow

Sun 9/11

11:45-17:00

1 stop4h 15m

£184

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Thu 4/12

11:05-13:45

1 stop3h 40m

London Heathrow

Mon 8/12

19:20-10:20

1 stop14h 00m

£185

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Sat 13/12

17:35-20:50

1 stop4h 15m

London Heathrow

Tue 16/12

08:40-17:05

1 stop7h 25m

£186

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Fri 7/11

17:30-20:50

1 stop4h 20m

London Heathrow

Tue 11/11

10:00-17:05

1 stop6h 05m

£187

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Thu 6/11

17:35-20:50

1 stop4h 15m

London Heathrow

Tue 11/11

08:40-17:05

1 stop7h 25m

£188

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Wed 24/9

16:35-20:55

1 stop5h 20m

London Heathrow

Sat 27/9

08:40-16:20

1 stop6h 40m

£193

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Thu 4/12

17:35-20:50

1 stop4h 15m

London Heathrow

Sun 7/12

09:00-17:30

2 stops7h 30m

£197

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Wed 10/9

11:45-16:35

1 stop5h 50m

London Heathrow

Sat 13/9

19:45-09:35

1 stop12h 50m

£204

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Fri 3/10

10:45-21:25

1 stop11h 40m

London Heathrow

Sun 5/10

19:45-17:45

2 stops21h 00m

£219

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 Heathrow Airport

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 cheapest airline that flies from Rennes St Jacques to London Heathrow?

Air France, KLM, and Aer Lingus are the most popular carriers operating from Rennes St Jacques to London Heathrow

When to book flights from Rennes to London Heathrow Airport

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

Cheap Rennes to London Heathrow Airport (RNS to LHR) flight deals and tips

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

Best price found

£125

Fastest flight time

3h 40m

Direct flights

None
The best one-way flight to London Heathrow Airport from Rennes in the past 72 hours is £125. The best return flight deal from Rennes to London Heathrow Airport found on momondo in the last 72 hours is £184.
The fastest flight from Rennes to London Heathrow Airport takes 3h 40m
There are no direct flights from Rennes to London Heathrow Airport. Popular non-direct route for this connection is Rennes St Jacques Airport - London Heathrow Airport.
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  • How far is Rennes St Jacques to London Heathrow by plane?

    The distance between Rennes St Jacques and London Heathrow is about 238.2 mi. A reasonable flight in good conditions will take 3h 40m.

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

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

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

    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 Heathrow Airport.

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

    The travel and health documents required for your trip to London Heathrow Airport 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 Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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Worthing
Hounslow
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Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Rennes.

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

momondo does allow users to show only those flights to London from Rennes which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Rennes and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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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