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Cheap flights from Rennes to London from £49

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 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
RNS — LON
13 Aug — 20 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Rennes St Jacques to London are usually found in January or March, booked 48 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Rennes to London

Enter your travel dates to find the best prices.

Cheapest flights from Rennes to London
Explore the most affordable flight options available from Rennes to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 July 2026.

Mon 7/916:00
RNS
-
LGW
Nonstop1h 10m
easyJet
Fri 18/914:15
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 10/7£97
Tue 25/822:00
RNS
-
LGW
Nonstop1h 05m
easyJet
Mon 31/813:10
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 10/7£98
Sun 22/1116:45
RNS
-
LGW
Nonstop1h 05m
easyJet
Fri 27/1118:05
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 12/7£99
Thu 10/1220:10
RNS
-
LGW
Nonstop1h 05m
easyJet
Sun 13/1217:35
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 12/7£99
Mon 2/1115:40
RNS
-
LGW
Nonstop1h 15m
easyJet
Fri 6/1118:05
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 10/7£100
Fri 11/917:10
RNS
-
LGW
Nonstop1h 05m
easyJet
Wed 23/912:35
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 10/7£101
Fri 11/917:10
RNS
-
LGW
Nonstop1h 05m
easyJet
Sun 13/913:25
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 10/7£102
Mon 16/1115:40
RNS
-
LGW
Nonstop1h 15m
easyJet
Mon 30/1112:50
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 13/7£102
Fri 11/917:10
RNS
-
LGW
Nonstop1h 05m
easyJet
Mon 14/913:10
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 10/7£103
Thu 27/820:25
RNS
-
LGW
Nonstop1h 05m
easyJet
Wed 2/912:35
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 13/7£104
Fri 13/1120:50
RNS
-
LGW
Nonstop1h 05m
easyJet
Mon 30/1112:50
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 13/7£105
Thu 27/820:25
RNS
-
LGW
Nonstop1h 05m
easyJet
Mon 31/813:10
LGW
-
RNS
Nonstop1h 15m
easyJet
Deal found 14/7£105

Find flight deals from Rennes to London

Discover tips and strategies to find the most affordable flight options for your journey from Rennes (RNS) to London (LON). 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 14 July 2026.

Round-trip from

£97

One-way from

£49

Popular in

August

Cheapest in

January

Average price

£141

Good one-way deal

£83 or less
easyJet
  • easyJet
  • 7/9-14/9
  • Nonstop
  • 2h 25m total
  • Rennes to London
Search Deals
easyJet
  • easyJet
  • 30/9
  • Nonstop
  • 1h 10m total
  • Rennes to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a one-way flight from Rennes St Jacques to London (LON).
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 14 July 2026.
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

Cheapest return flight
Fastest return journey

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Thu 10/12

20:10-20:15

Nonstop1h 05m

London Gatwick

Sun 13/12

17:35-19:50

Nonstop1h 15m

£99

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Fri 11/9

17:10-17:15

Nonstop1h 05m

London Gatwick

Sun 13/9

13:25-15:40

Nonstop1h 15m

£102

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Sun 29/11

16:45-16:50

Nonstop1h 05m

London Gatwick

Thu 3/12

12:30-14:45

Nonstop1h 15m

£108

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Thu 27/8

20:25-20:30

Nonstop1h 05m

London Gatwick

Wed 2/9

12:35-14:50

Nonstop1h 15m

£111

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Mon 2/11

15:40-15:55

Nonstop1h 15m

London Gatwick

Thu 5/11

12:30-14:45

Nonstop1h 15m

£114

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Fri 11/12

08:50-08:55

Nonstop1h 05m

London Gatwick

Mon 14/12

10:15-12:30

Nonstop1h 15m

£115

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Fri 4/9

17:10-17:15

Nonstop1h 05m

London Gatwick

Fri 11/9

14:15-16:30

Nonstop1h 15m

£119

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Fri 4/9

17:10-17:15

Nonstop1h 05m

London Gatwick

Sun 6/9

13:40-11:30

1 stop20h 50m

£132

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Sun 11/10

16:25-16:35

Nonstop1h 10m

London Gatwick

Thu 15/10

20:15-15:55

1 stop18h 40m

£139

RennesLondon

RNS - LGW

RNSLGW

Rennes St Jacques

Thu 20/8

20:25-20:30

Nonstop1h 05m

London Gatwick

Mon 24/8

13:10-15:25

Nonstop1h 15m

£142

Flights are sorted by cheapest return flights first.

Deals found on 11/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Rennes to London

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

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

Currently, January is the cheapest month in which you can book a flight from Rennes to London (average of £31). Flying from Rennes to London in December is currently the most expensive (average of £134). 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.

What is the cheapest time of day to fly from RNS to LON?

Find hourly flight availability from Rennes to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 July 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 19% on flights from Rennes to London by exploring options for tickets in the afternoon.

How much does it cost for a return flight from Rennes to London?

How often are flights from Rennes to London delayed?

About 17% of weekly flights between Rennes and London have experienced delays in the past year, with the average delay time being 95 minutes.

What is the most punctual flight time for Rennes to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Rennes to London flights?

Over the past year, easyJet have had the lowest number of delays on this route, with just 17% of flights being delayed.

How far ahead should I book a flight from Rennes to London?

The price you pay for your flight from Rennes to London may vary depending on when you book. For the best chance of a lower fare, look to book 75 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 14 July 2026.
Get a feel of what it's like to fly with easyJet from Rennes to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,917 reviews
Check prices

Comfort

6.8

Crew

7.7

Entertainment

5.5

Food

5.9

Overall

6.9

Boarding

6.7

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.
easyJet
6.9
Okay
1,917 reviews
easyJet
6.9
Okay
1,917 reviews
Check prices

Comfort

6.8

Crew

7.7

Entertainment

5.5

Food

5.9

Overall

6.9

Boarding

6.7

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.

Related info for your journey

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

  • What airport do you fly from for flights from Rennes to London?

    Located just 4.0 mi from the city center, Rennes St Jacques is the airport most travelers will use when flying to London from Rennes. Booking flights from St Jacques (RNS) to London should be relatively easy as there are 0 daily outbound flights to London from 0 different airlines.

  • How long is the flight from Rennes to London?

    For as low as £99, easyJet can have you in London from Rennes in 1h 05m. There are 224 mi between Rennes and London. This flight may include one or multiple stops.

  • What are the most popular routes from Rennes to London?

    When deciding which route to take from Rennes to London consider Rennes St Jacques - London Heathrow, Rennes St Jacques - London City or Rennes St Jacques - London Luton as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Rennes to London 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 Rennes to London?

    Currently, January is the cheapest month in which you can book a flight from Rennes to London (average of £31). Flying from Rennes to London in December is currently the most expensive (average of £134). 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

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