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Cheap flights from London Heathrow Airport to Rennes from £95

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — RNS
18 Jul — 25 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Rennes

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Rennes
Explore the most affordable flight options available from Heathrow to Rennes. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2026.

Mon 13/715:20
LHR
-
RNS
1 stop18h 00m
Multiple Airlines
Mon 20/718:05
RNS
-
LHR
1 stop14h 35m
Multiple Airlines
Deal found 15/6£157
Wed 28/1010:00
LHR
-
RNS
1 stop5h 15m
KLM
Sun 1/1118:10
RNS
-
LHR
1 stop15h 50m
KLM
Deal found 14/6£176
Mon 13/720:55
LHR
-
RNS
2 stops12h 25m
KLM
Mon 20/718:05
RNS
-
LHR
1 stop14h 35m
KLM
Deal found 15/6£187
Fri 6/1120:25
LHR
-
RNS
2 stops12h 55m
KLM
Mon 9/1116:45
RNS
-
LHR
1 stop3h 30m
KLM
Deal found 17/6£190
Mon 10/819:45
LHR
-
RNS
1 stop13h 35m
Multiple Airlines
Tue 18/818:05
RNS
-
LHR
1 stop3h 50m
Multiple Airlines
Deal found 14/6£196
Mon 5/1019:45
LHR
-
RNS
1 stop13h 35m
Multiple Airlines
Sun 11/1014:25
RNS
-
LHR
1 stop7h 30m
Multiple Airlines
Deal found 16/6£197
Mon 10/820:55
LHR
-
RNS
2 stops12h 25m
KLM
Tue 18/818:05
RNS
-
LHR
1 stop3h 50m
KLM
Deal found 14/6£202
Mon 22/619:45
LHR
-
RNS
1 stop13h 35m
Air France
Tue 30/611:05
RNS
-
LHR
1 stop21h 50m
Air France
Deal found 14/6£206
Thu 9/706:30
LHR
-
RNS
1 stop10h 05m
KLM
Thu 16/718:10
RNS
-
LHR
1 stop3h 45m
KLM
Deal found 13/6£211
Tue 30/620:55
LHR
-
RNS
2 stops36h 25m
KLM
Sat 4/718:05
RNS
-
LHR
1 stop14h 35m
KLM
Deal found 13/6£211

Find flight deals from Heathrow to Rennes

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 18 June 2026.

Round-trip from

£157

One-way from

£95

Popular in

April

Cheapest in

January

Average price

£183
KLM
  • KLM
  • 13/7-20/7
  • 2 total stops
  • 32h 35m total
  • London to Rennes
Search Deals
KLM
  • KLM
  • 11/9
  • 1 total stop
  • 18h 55m total
  • London to Rennes
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 18 June 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Rennes that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Mon 10/8

19:45-10:20

1 stop13h 35m

Rennes St Jacques

Tue 18/8

18:05-20:55

1 stop3h 50m

£196

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Mon 5/10

19:45-10:20

1 stop13h 35m

Rennes St Jacques

Sun 11/10

11:05-17:50

2 stops7h 45m

£205
Fastest return journey

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Tue 11/8

08:40-17:35

1 stop7h 55m

Rennes St Jacques

Tue 18/8

18:05-20:55

1 stop3h 50m

£220

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Mon 5/10

20:55-10:20

2 stops12h 25m

Rennes St Jacques

Sun 11/10

11:05-17:50

2 stops7h 45m

£226

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Tue 30/6

06:30-13:55

1 stop6h 25m

Rennes St Jacques

Fri 3/7

14:25-20:55

1 stop7h 30m

£229

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Mon 10/8

19:45-10:20

1 stop13h 35m

Rennes St Jacques

Mon 17/8

11:05-18:35

1 stop8h 30m

£238

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Tue 28/7

19:45-10:20

1 stop13h 35m

Rennes St Jacques

Thu 30/7

18:05-20:55

1 stop3h 50m

£261

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Mon 10/8

20:55-10:20

2 stops12h 25m

Rennes St Jacques

Mon 17/8

11:05-18:35

1 stop8h 30m

£273

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Fri 7/8

19:45-10:20

1 stop13h 35m

Rennes St Jacques

Sun 9/8

11:05-07:55

1 stop21h 50m

£274

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Mon 28/9

08:40-13:55

1 stop4h 15m

Rennes St Jacques

Tue 29/9

11:05-18:35

1 stop8h 30m

£279

Flights are sorted by cheapest return flights first.

Deals found on 17/6

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to Rennes

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

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 18 June 2026.
Get a feel of what it's like to fly with easyJet from London Heathrow Airport to Rennes 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
1,909 reviews
Check prices

Comfort

6.8

Food

5.9

Boarding

6.7

Overall

6.9

Crew

7.7

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LTN - LEI

Staff professional and friendly Plane clean and comfortable One passenger had problem with his seat and the crew sorted it immediately.
easyJet
6.9
Okay
1,909 reviews
easyJet
6.9
Okay
1,909 reviews
Check prices

Comfort

6.8

Food

5.9

Boarding

6.7

Overall

6.9

Crew

7.7

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LTN - LEI

Staff professional and friendly Plane clean and comfortable One passenger had problem with his seat and the crew sorted it immediately.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow?

    Located just 4.0 mi from the city center, Rennes St Jacques is the airport most travelers will use when flying to Rennes from London Heathrow. Booking flights from London Heathrow to St Jacques (RNS) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 1 airline.

  • How long is the flight from London Heathrow Airport to Rennes?

    For as low as £220, KLM can have you in Rennes from London Heathrow Airport in 7h 55m. The distance from London Heathrow Airport to Rennes is about 242 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Heathrow to Rennes

Discover the top airline that operate flights from Heathrow 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 18 June 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£138Average£193FlexibilityNo cancel feeOn-time86%
Search easyJet flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Rennes?

When you search for this flight from Heathrow to Rennes, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Rennes?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Rennes from Heathrow.

Can Cheapflights find flights from Heathrow to Rennes with no change fees?

Need flexible booking options for your flight to Rennes from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Rennes become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Rennes from Heathrow today and book when prices fit your budget.

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