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Cheap flights from London Heathrow Airport to Saint-Denis from £341

LHR — RUN
1 Oct — 8 Oct1
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

Thu 3/915:00 -
1 stop16h 30m
Wed 16/922:10 -
1 stop19h 05m
Deal found 30/8£632
Fri 27/1115:15 -
1 stop14h 40m
Sun 6/1223:00 -
1 stop19h 25m
Deal found 29/8£712
Mon 31/815:00 -
1 stop16h 30m
Tue 15/921:30 -
1 stop19h 45m
Deal found 28/8£743
Thu 19/1111:30 -
1 stop17h 40m
Sun 22/1123:00 -
1 stop18h 45m
Deal found 31/8£754
Sun 22/1115:15 -
1 stop14h 40m
Sat 28/1108:00 -
1 stop34h 25m
Deal found 31/8£755
Wed 18/1108:55 -
1 stop20h 15m
Sun 29/1123:00 -
1 stop18h 45m
Deal found 31/8£756
Tue 1/906:15 -
1 stop21h 10m
Wed 16/920:25 -
1 stop23h 10m
Deal found 31/8£763
Wed 18/1120:25 -
2 stops32h 45m
Sun 22/1123:00 -
1 stop21h 35m
Deal found 28/8£771

Find flight deals from Heathrow to Saint-Denis

Round-trip from

£712

One-way from

£341

Popular in

February

Cheapest in

January

Average price

£599
27/11-6/12
  • 27/11-6/12
  • 2 total stops
  • 34h 05m total
  • London to Saint-Denis
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18/11
  • 18/11
  • 2 total stops
  • 33h 05m total
  • London to Saint-Denis
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£53 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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 London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Fri 27/11

20:50-05:30

2 stops28h 40m

Saint-Denis Gillot

Sun 6/12

23:00-14:25

1 stop19h 25m

£723

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Tue 13/10

12:30-17:10

2 stops25h 40m

Saint-Denis Gillot

Tue 20/10

09:00-14:15

1 stop32h 15m

£912

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 11/10

15:00-09:00

1 stop15h 00m

Saint-Denis Gillot

Sun 18/10

08:00-09:10

2 stops28h 10m

£926

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sat 10/10

15:00-05:35

1 stop35h 35m

Saint-Denis Gillot

Sat 17/10

12:20-14:15

1 stop28h 55m

£949
Fastest return journey

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Thu 19/11

11:30-09:30

2 stops18h 00m

Saint-Denis Gillot

Mon 23/11

07:00-21:25

2 stops18h 25m

£1,010

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 25/10

22:00-22:50

2 stops20h 50m

Saint-Denis Gillot

Sun 8/11

16:55-11:40

2 stops22h 45m

£1,011
Cheapest one-way

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Wed 18/11

20:50-09:55

2 stops33h 05m

£341
Fastest single journey

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 29/11

15:15-11:20

1 stop16h 05m

£355

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Thu 19/11

14:45-05:30

1 stop34h 45m

£375

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Fri 9/10

06:15-09:30

2 stops24h 15m

£927

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Sorted by cheapest first

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

Related info for your journey

  • 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 0 airlines have 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.

  • 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

Gatwick to Saint-Denis flights

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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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