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Cheap flights from London Heathrow Airport to Saint-Denis from £304

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — RUN
21 Aug — 28 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Saint-Denis

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Saint-Denis
Explore the most affordable flight options available from Heathrow to Saint-Denis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 July 2026.

Sun 23/815:00
LHR
-
RUN
1 stop27h 05m
Multiple Airlines
Tue 8/922:10
RUN
-
LHR
1 stop19h 05m
Multiple Airlines
Deal found 20/7£639
Thu 3/915:00
LHR
-
RUN
1 stop15h 00m
Multiple Airlines
Mon 14/922:10
RUN
-
LHR
1 stop19h 05m
Multiple Airlines
Deal found 22/7£673
Sat 22/815:00
LHR
-
RUN
1 stop27h 05m
Multiple Airlines
Tue 25/808:00
RUN
-
LHR
1 stop33h 15m
Multiple Airlines
Deal found 19/7£698
Thu 27/806:15
LHR
-
RUN
1 stop20h 20m
Multiple Airlines
Thu 10/922:10
RUN
-
LHR
1 stop19h 05m
Multiple Airlines
Deal found 22/7£730
Sat 7/1119:20
LHR
-
RUN
1 stop34h 35m
Multiple Airlines
Sat 14/1108:30
RUN
-
LHR
1 stop33h 55m
Multiple Airlines
Deal found 22/7£778
Sat 14/1117:35
LHR
-
RUN
1 stop15h 05m
Multiple Airlines
Sat 21/1111:40
RUN
-
LHR
1 stop24h 15m
Multiple Airlines
Deal found 22/7£792
Sat 5/915:00
LHR
-
RUN
1 stop16h 50m
Multiple Airlines
Sat 12/921:30
RUN
-
LHR
1 stop19h 45m
Multiple Airlines
Deal found 22/7£814

Find flight deals from Heathrow to Saint-Denis

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Saint-Denis (RUN). 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 22 July 2026.

Round-trip from

£639

One-way from

£304

Popular in

February

Cheapest in

January

Average price

£1,064
23/8-8/9
  • 23/8-8/9
  • 2 total stops
  • 46h 10m total
  • London to Saint-Denis
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24/8
  • 24/8
  • 2 total stops
  • 44h 55m total
  • London to Saint-Denis
Search Deals
High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 6% potential price decrease (£51 potential savings vs. average return price).
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Average for round-trip flights in July 2026
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Saint-Denis 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 22 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Saint-Denis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sun 23/8

15:00-21:05

1 stop27h 05m

Saint-Denis Gillot

Tue 8/9

22:10-14:15

1 stop19h 05m

£639

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Mon 18/1

15:15-09:55

1 stop14h 40m

Saint-Denis Gillot

Sun 28/2

23:00-14:25

1 stop19h 25m

£697

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 14/11

15:15-09:55

1 stop14h 40m

Saint-Denis Gillot

Sat 21/11

08:00-08:25

2 stops28h 25m

£841

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 5/9

14:45-09:30

2 stops15h 45m

Saint-Denis Gillot

Sat 12/9

12:05-13:45

2 stops52h 40m

£863

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 7/11

15:15-09:55

1 stop14h 40m

Saint-Denis Gillot

Fri 20/11

23:00-14:25

1 stop19h 25m

£863

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 7/11

22:15-09:55

2 stops31h 40m

Saint-Denis Gillot

Sat 14/11

08:30-21:25

1 stop16h 55m

£869

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Thu 3/9

16:50-22:50

2 stops27h 00m

Saint-Denis Gillot

Mon 14/9

10:10-12:25

2 stops29h 15m

£918

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Mon 18/1

06:20-09:30

2 stops23h 10m

Saint-Denis Gillot

Tue 23/2

10:10-07:55

2 stops49h 45m

£1,016

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Thu 8/10

22:15-22:50

2 stops21h 35m

Saint-Denis Gillot

Sat 24/10

13:35-12:40

2 stops26h 05m

£1,023
Fastest return journey

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Fri 21/8

09:55-06:25

2 stops17h 30m

Saint-Denis Gillot

Sat 5/9

08:50-21:25

1 stop15h 35m

£1,025

Flights are sorted by cheapest return flights first.

Deals found on 21/7

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to Saint-Denis

Have a flexible travel schedule? Discover the best time to fly to Saint-Denis 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 Saint-Denis

Get insights into the airlines that provide service to Saint-Denis. 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 Saint-Denis. Reviews last updated 22 July 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Saint-Denis, such as Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.5
Good
1,627 reviews
Check prices

Crew

8.2

Food

7.0

Overall

7.5

Comfort

7.4

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Patrick,Jun 2026

CDG - BER

It was really terrific. Timely boarding, plane was extremely comfortable (hot day in Paris), and food was delicious. I could not have been more pleased.
Air France
7.5
Good
1,627 reviews
Air France
7.5
Good
1,627 reviews
Check prices

Crew

8.2

Food

7.0

Overall

7.5

Comfort

7.4

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Patrick,Jun 2026

CDG - BER

It was really terrific. Timely boarding, plane was extremely comfortable (hot day in Paris), and food was delicious. I could not have been more pleased.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Saint-Denis. 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 Saint-Denis from London Heathrow?

    Saint-Denis Gillot (RUN) is the airport you will fly into if you book a flight from London Heathrow to Saint-Denis. You should not have trouble finding flights to Gillot from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Saint-Denis airport from London Heathrow. It is only a 3.9 mi journey from Gillot (RUN) to Saint-Denis’s city center.

  • How long is the flight from London Heathrow Airport to Saint-Denis?

    Departing from London Heathrow Airport to Saint-Denis will take you 15h 45m. There are 6029 mi between London Heathrow Airport and Saint-Denis.

  • What is the cheapest airline to fly from London Heathrow Airport to Saint-Denis round-trip?

    Air France, at £405, was found to be the cheapest airline from London Heathrow Airport to Saint-Denis..

  • Can I find deals for flights from Heathrow to Saint-Denis that include hotel bookings?

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

  • How can I find direct flights from Heathrow to Saint-Denis?

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

  • Can I find deals for business class flights from Heathrow to Saint-Denis?

    Yes. Cheapflights offers flight deals from Heathrow to Saint-Denis 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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Alternative routes for Heathrow to Saint-Denis

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Saint-Denis flights

Top airline flying from Heathrow to Saint-Denis

Discover the top airline that operate flights from Heathrow to Saint-Denis. 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 22 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£405Average£974FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Saint-Denis?

Deals for Heathrow to Saint-Denis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Saint-Denis?

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 Saint-Denis from Heathrow.

Can Cheapflights find flights from Heathrow to Saint-Denis with no change fees?

Need flexible booking options for your flight to Saint-Denis 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 Saint-Denis become cheaper?

Yes! Start tracking prices for Heathrow to Saint-Denis flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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