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Cheap flights from Rennes to London from £86

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 21/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Air France Logo
11:05 - 08:00
RNS
-
LHR
21h 55m
1 stop
Air France Logo
19:20 - 10:20
LHR
-
RNS
14h 00m
1 stop
£161Air France
Fri, 27 Feb - Sat, 7 Mar
Air France Logo
11:05 - 16:35
RNS
-
LHR
6h 30m
1 stop
Air France Logo
19:20 - 10:20
LHR
-
RNS
14h 00m
1 stop
£163Air France
Thu, 19 Mar - Mon, 23 Mar
Air France Logo
11:05 - 18:20
RNS
-
LHR
8h 15m
1 stop
Air France Logo
17:35 - 10:20
LHR
-
RNS
15h 45m
1 stop
£163Air France
Fri, 27 Feb - Mon, 2 Mar
KLM Logo
17:35 - 20:50
RNS
-
LHR
4h 15m
1 stop
KLM Logo
10:00 - 17:00
LHR
-
RNS
6h 00m
1 stop
£167KLM
Sat, 7 Mar - Wed, 11 Mar
KLM Logo
17:35 - 20:50
RNS
-
LHR
4h 15m
1 stop
KLM Logo
20:25 - 17:05
LHR
-
RNS
19h 40m
1 stop
£168KLM
Fri, 20 Mar - Mon, 23 Mar
Air France Logo
11:05 - 16:35
RNS
-
LHR
6h 30m
1 stop
Air France Logo
19:20 - 10:20
LHR
-
RNS
14h 00m
1 stop
£174Air France
Sun, 1 Mar - Sat, 7 Mar
Air France Logo
11:05 - 13:45
RNS
-
LHR
3h 40m
1 stop
Air France Logo
19:45 - 10:20
LHR
-
RNS
13h 35m
1 stop
£175Air France
Tue, 9 Jun - Tue, 23 Jun
Multiple Airlines Logo
14:25 - 19:25
RNS
-
LHR
6h 00m
1 stop
Multiple Airlines Logo
19:45 - 10:20
LHR
-
RNS
13h 35m
1 stop
£176Multiple Airlines
Wed, 22 Apr - Mon, 27 Apr
KLM Logo
17:35 - 20:50
RNS
-
LHR
4h 15m
1 stop
KLM Logo
06:30 - 17:05
LHR
-
RNS
9h 35m
1 stop
£178KLM
Fri, 6 Mar - Thu, 12 Mar
Air France Logo
11:05 - 07:55
RNS
-
LHR
21h 50m
1 stop
Air France Logo
19:45 - 10:20
LHR
-
RNS
13h 35m
1 stop
£179Air France
Thu, 2 Apr - Sun, 5 Apr

KLM flights from Rennes to London Heathrow Airport

Our best KLM deals on Rennes to London Heathrow Airport flight tickets
KLM
7 Mar
RNS17:35Rennes St Jacques
4h 15m
1 stop
LHR20:50London Heathrow
11 Mar
LHR10:00London Heathrow
6h 00m
1 stop
RNS17:00Rennes St Jacques
£167
KLM
20 Mar
RNS17:35Rennes St Jacques
4h 15m
1 stop
LHR20:50London Heathrow
23 Mar
LHR20:25London Heathrow
19h 40m
1 stop
RNS17:05Rennes St Jacques
£168
KLM
6 Mar
RNS17:35Rennes St Jacques
4h 15m
1 stop
LHR20:50London Heathrow
12 Mar
LHR06:30London Heathrow
9h 35m
1 stop
RNS17:05Rennes St Jacques
£178

Air France flights from Rennes to London Heathrow Airport

Our best Air France deals on Rennes to London Heathrow Airport flight tickets
Air France
27 Feb
RNS11:05Rennes St Jacques
21h 55m
1 stop
LHR08:00London Heathrow
7 Mar
LHR19:20London Heathrow
14h 00m
1 stop
RNS10:20Rennes St Jacques
£161
Air France
19 Mar
RNS11:05Rennes St Jacques
6h 30m
1 stop
LHR16:35London Heathrow
23 Mar
LHR19:20London Heathrow
14h 00m
1 stop
RNS10:20Rennes St Jacques
£163
Air France
27 Feb
RNS11:05Rennes St Jacques
8h 15m
1 stop
LHR18:20London Heathrow
2 Mar
LHR17:35London Heathrow
15h 45m
1 stop
RNS10:20Rennes St Jacques
£163

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 10 February 2026.
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

Fri 27/2

11:05-08:00

1 stop21h 55m

London Heathrow

Sat 7/3

19:20-10:20

1 stop14h 00m

£161

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Thu 19/3

11:05-16:35

1 stop6h 30m

London Heathrow

Mon 23/3

19:20-10:20

1 stop14h 00m

£163

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Fri 27/2

11:05-18:20

1 stop8h 15m

London Heathrow

Mon 2/3

17:35-10:20

1 stop15h 45m

£163

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Sat 7/3

17:35-20:50

1 stop4h 15m

London Heathrow

Wed 11/3

10:00-17:00

1 stop6h 00m

£167

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Fri 20/3

17:35-20:50

1 stop4h 15m

London Heathrow

Mon 23/3

20:25-17:05

1 stop19h 40m

£168

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Sun 1/3

11:05-16:35

1 stop6h 30m

London Heathrow

Sat 7/3

19:20-10:20

1 stop14h 00m

£174

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Tue 9/6

11:05-13:45

1 stop3h 40m

London Heathrow

Tue 23/6

19:45-10:20

1 stop13h 35m

£175

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Wed 22/4

14:25-19:25

1 stop6h 00m

London Heathrow

Mon 27/4

19:45-10:20

1 stop13h 35m

£176

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Fri 6/3

17:35-20:50

1 stop4h 15m

London Heathrow

Thu 12/3

06:30-17:05

1 stop9h 35m

£178

RennesLondon

RNS - LHR

RNSLHR

Rennes St Jacques

Thu 2/4

11:05-07:55

1 stop21h 50m

London Heathrow

Sun 5/4

19:45-10:20

1 stop13h 35m

£179

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

KLM is the most popular carrier 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

Fastest flight time

3h 40m

Direct flights

None
The fastest flight from Rennes to London Heathrow Airport takes 3h 40m
There are no direct flights from Rennes to London Heathrow Airport. There are no popular flight routes from Rennes to London Heathrow Airport.
Search flight deals

  • 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.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Slough
Maidstone
Northampton
Stratford-upon-Avon
Swindon
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Poole
Chelmsford
Hayes
Wembley
Dover
Folkestone

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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