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Cheap flights from London to Rennes from £34

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — RNS
7 Jul — 14 Jul1
1 adult

Cheapflights Tip: The best prices from London to Rennes St Jacques are usually found in March or September, booked 73 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from London to Rennes

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Rennes (RNS). 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 2 July 2025.

Round-trip from

£74

One-way from

£34

Popular in

August

Cheapest in

March

Average price

£183

Good round-trip deal

£155 or less

Good one-way deal

£107 or less
easyJet
  • easyJet
  • 21/9-26/9
  • Nonstop
  • 2h 20m total
  • London to Rennes
easyJet
  • easyJet
  • 28/9
  • Nonstop
  • 1h 15m total
  • London to Rennes
Highest demand for flights based on searches. 20% potential increase in price (£21 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from London (LON) to Rennes St Jacques.
Price to beat on a one-way flight from London (LON) to Rennes St Jacques.

Find flight deals from London to Rennes

Cheapest flights from London to Rennes
Explore the most affordable flight options available from London to Rennes. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.

Sun 21/913:25LGW - RNS
Nonstop1h 15measyJet
Fri 26/917:40RNS - LGW
Nonstop1h 05measyJet
Deal found 30/6£74
Fri 29/814:15LGW - RNS
Nonstop1h 15mMultiple Airlines
Sat 30/818:50RNS - LGW
1 stop14h 25mMultiple Airlines
Deal found 30/6£138
Wed 10/906:30LHR - RNS
1 stop8h 30mMultiple Airlines
Tue 18/1111:05RNS - LHR
1 stop11h 20mMultiple Airlines
Deal found 1/7£172
Fri 5/922:50STN - RNS
1 stop18h 20mMultiple Airlines
Fri 19/920:15RNS - STN
1 stop4h 25mMultiple Airlines
Deal found 1/7£186
Fri 15/820:55LHR - RNS
1 stop12h 50mKLM
Fri 22/817:50RNS - LHR
1 stop4h 05mKLM
Deal found 1/7£191
Wed 10/909:20LCY - RNS
1 stop5h 40mKLM
Tue 18/1114:20RNS - LCY
1 stop4h 00mKLM
Deal found 1/7£196
Wed 20/810:00LTN - RNS
1 stop4h 25mMultiple Airlines
Wed 27/816:00RNS - LTN
1 stop7h 10mMultiple Airlines
Deal found 30/6£214
Sat 19/719:45LHR - RNS
1 stop12h 50mAir France
Thu 31/711:45RNS - LHR
1 stop7h 50mAir France
Deal found 1/7£264
Tue 15/707:45LCY - RNS
2 stops13h 10mMultiple Airlines
Fri 18/711:20RNS - LCY
1 stop8h 10mMultiple Airlines
Deal found 30/6£333
Fri 25/711:05SEN - RNS
2 stops9h 40mMultiple Airlines
Sun 27/710:15RNS - SEN
1 stop6h 05mMultiple Airlines
Deal found 1/7£450

Cheapflights Fare Finder

Customise your flight search to find flights from London to Rennes 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 2 July 2025.
Use the filters below to find and compare flights from London to Rennes that are best for you.

Fly from

London

Fly to

Rennes

Route

Depart

Return

Price

LondonRennes

LGW - RNS

LGWRNS

London Gatwick

Sun 21/9

13:25-15:40

Nonstop1h 15m

Rennes St Jacques

Fri 26/9

17:40-17:45

Nonstop1h 05m

£74

LondonRennes

LGW - RNS

LGWRNS

London Gatwick

Fri 29/8

14:15-16:30

Nonstop1h 15m

Rennes St Jacques

Sat 30/8

18:50-08:15

1 stop14h 25m

£138

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Wed 10/9

06:30-16:00

1 stop8h 30m

Rennes St Jacques

Tue 18/11

11:05-21:25

1 stop11h 20m

£172

LondonRennes

STN - RNS

STNRNS

London Stansted

Fri 5/9

22:50-18:10

1 stop18h 20m

Rennes St Jacques

Fri 19/9

20:15-23:40

1 stop4h 25m

£186

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Fri 15/8

20:55-10:45

1 stop12h 50m

Rennes St Jacques

Fri 22/8

17:50-20:55

1 stop4h 05m

£191

LondonRennes

LCY - RNS

LCYRNS

London City

Wed 10/9

09:20-16:00

1 stop5h 40m

Rennes St Jacques

Tue 18/11

14:20-17:20

1 stop4h 00m

£196

LondonRennes

LTN - RNS

LTNRNS

London Luton

Wed 20/8

10:00-15:25

1 stop4h 25m

Rennes St Jacques

Wed 27/8

16:00-22:10

1 stop7h 10m

£214

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Sat 19/7

19:45-09:35

1 stop12h 50m

Rennes St Jacques

Mon 4/8

11:45-18:35

1 stop7h 50m

£264

LondonRennes

LCY - RNS

LCYRNS

London City

Tue 15/7

07:45-21:55

2 stops13h 10m

Rennes St Jacques

Fri 18/7

11:20-18:30

1 stop8h 10m

£333

LondonRennes

SEN - RNS

SENRNS

London Southend

Fri 25/7

11:05-21:45

2 stops9h 40m

Rennes St Jacques

Sun 27/7

10:15-15:20

1 stop6h 05m

£450

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 24 results
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Best time to book a flight from London to Rennes

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

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

Use this chart to determine the optimal time to book a return flight from London to Rennes. Price data was last updated on 27 June 2025.

To ensure you get the cheapest price possible for a flight from London to Rennes, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Find hourly flight availability from London to Rennes. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 July 2025.

It’s optimal to fly from London to Rennes in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight at midday.

Reviews of airlines servicing Rennes

Get insights into the airlines that provide service to Rennes. 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 Rennes. Reviews last updated 2 July 2025.
See what other customers who have flown with KLM, Air France, andAer Lingus from London to Rennes have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Comfort

7.7

Entertainment

7.1

Overall

7.8

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from London to Rennes. 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 into for flights to Rennes from London?

    Rennes St Jacques (RNS) is the airport you will fly into if you book a flight from London to Rennes. You should not have trouble finding flights to St Jacques from London; the airport handles an average of 0 inbound flights from London per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Rennes airport from London. It is only a 4.0 mi journey from St Jacques (RNS) to Rennes’s city center.

  • What are the cheapest airlines flying from London to Rennes round-trip?

    According to our current data, easyJet (£74), KLM (£191), and Air France (£264) offers the cheapest pricing from London to Rennes. easyJet is currently priced 38% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from London to Rennes one-way?

    £34 is the cheapest one-way deal found within the past few days, from easyJet. You may also be able to find cheap deals on KLM and Air France, with prices starting from £97 and £133, respectively.

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Rennes by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from London to Rennes

Discover the top airline that operate flights from London to Rennes. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 July 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£52Average£144FlexibilityNo cancel feeOn-time86%
Search easyJet flights

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