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Cheap flights from London Heathrow Airport to Rennes from £93

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — RNS
6 Jun — 13 Jun1
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 7 May 2026.

Wed 24/619:45
LHR
-
RNS
1 stop13h 35m
Multiple Airlines
Sat 27/617:20
RNS
-
LHR
1 stop15h 20m
Multiple Airlines
Deal found 4/5£159
Sun 31/519:45
LHR
-
RNS
1 stop13h 35m
Multiple Airlines
Tue 23/614:25
RNS
-
LHR
1 stop7h 30m
Multiple Airlines
Deal found 2/5£160
Tue 2/611:30
LHR
-
RNS
1 stop21h 50m
Multiple Airlines
Tue 23/614:25
RNS
-
LHR
1 stop4h 10m
Multiple Airlines
Deal found 2/5£161
Fri 12/619:45
LHR
-
RNS
1 stop13h 35m
Air France
Mon 15/611:05
RNS
-
LHR
1 stop8h 30m
Air France
Deal found 6/5£171
Wed 20/519:45
LHR
-
RNS
1 stop13h 35m
Air France
Mon 25/511:05
RNS
-
LHR
1 stop8h 30m
Air France
Deal found 3/5£172
Mon 1/619:45
LHR
-
RNS
1 stop13h 35m
Air France
Mon 8/611:05
RNS
-
LHR
1 stop8h 30m
Air France
Deal found 2/5£175
Sun 31/519:45
LHR
-
RNS
1 stop13h 35m
Air France
Sun 7/611:05
RNS
-
LHR
1 stop21h 50m
Air France
Deal found 3/5£176
Sat 9/519:45
LHR
-
RNS
1 stop13h 35m
Air France
Wed 13/511:05
RNS
-
LHR
1 stop6h 30m
Air France
Deal found 3/5£179
Sun 31/511:45
LHR
-
RNS
2 stops21h 35m
KLM
Tue 23/614:25
RNS
-
LHR
1 stop7h 30m
KLM
Deal found 2/5£180
Tue 23/619:45
LHR
-
RNS
1 stop13h 35m
Air France
Tue 30/610:35
RNS
-
LHR
2 stops11h 50m
Air France
Deal found 6/5£182
Sun 13/908:55
LHR
-
RNS
2 stops7h 40m
Multiple Airlines
Wed 16/914:25
RNS
-
LHR
1 stop4h 10m
Multiple Airlines
Deal found 2/5£185

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 7 May 2026.

Round-trip from

£159

One-way from

£93

Popular in

July

Cheapest in

January

Average price

£177
KLM
  • KLM
  • 24/6-27/6
  • 2 total stops
  • 28h 55m total
  • London to Rennes
Search Deals
17/6
  • 17/6
  • 2 total stops
  • 15h 55m total
  • London to Rennes
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£40 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 7 May 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 1/6

19:45-10:20

1 stop13h 35m

Rennes St Jacques

Tue 23/6

14:25-20:55

1 stop7h 30m

£160

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Mon 18/5

20:55-10:20

2 stops12h 25m

Rennes St Jacques

Mon 25/5

11:05-13:45

1 stop3h 40m

£201

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Sun 31/5

14:45-09:50

2 stops18h 05m

Rennes St Jacques

Mon 22/6

14:25-20:55

1 stop7h 30m

£229

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Sat 27/6

19:45-10:20

1 stop13h 35m

Rennes St Jacques

Mon 29/6

14:25-20:55

1 stop7h 30m

£231

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Wed 17/6

20:55-10:20

2 stops12h 25m

Rennes St Jacques

Thu 9/7

11:05-21:25

1 stop11h 20m

£232

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Thu 25/6

06:30-13:55

1 stop6h 25m

Rennes St Jacques

Mon 29/6

11:05-21:25

1 stop11h 20m

£243

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Sat 13/6

19:45-10:20

1 stop13h 35m

Rennes St Jacques

Sat 27/6

11:05-20:55

2 stops10h 50m

£245
Fastest return journey

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Mon 15/6

08:40-13:55

1 stop4h 15m

Rennes St Jacques

Tue 16/6

11:05-18:35

1 stop8h 30m

£281

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Thu 9/7

06:30-17:35

1 stop10h 05m

Rennes St Jacques

Mon 13/7

11:05-18:35

1 stop8h 30m

£281

LondonRennes

LHR - RNS

LHRRNS

London Heathrow

Thu 21/5

06:30-14:00

1 stop6h 30m

Rennes St Jacques

Mon 25/5

11:05-18:35

1 stop8h 30m

£289

Flights are sorted by cheapest return flights first.

Deals found on 3/5

Showing 1-10 of 20 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 7 May 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
1,898 reviews
Check prices

Food

5.9

Overall

6.9

Boarding

6.7

Comfort

6.7

Crew

7.7

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

muhon,Oct 2025

MAN - GVA

Service and quality and the price is great .definitely recomondable .
easyJet
6.9
Okay
1,898 reviews
easyJet
6.9
Okay
1,898 reviews
Check prices

Food

5.9

Overall

6.9

Boarding

6.7

Comfort

6.7

Crew

7.7

Entertainment

5.5

Reviews

1 / 20
10.0
Excellent

muhon,Oct 2025

MAN - GVA

Service and quality and the price is great .definitely recomondable .

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.

  • 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 7 May 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£136Average£190FlexibilityNo 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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