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Cheap flights from London Heathrow Airport to Saint-Denis from £371

LHR — RUN
1 Nov — 8 Nov1
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

Tue 1/1220:50 -
2 stops33h 05m
Tue 8/1223:00 -
1 stop19h 25m
Deal found 30/9£630
Sun 22/1115:15 -
1 stop14h 40m
Sat 5/1223:00 -
1 stop19h 25m
Deal found 28/9£656
Wed 25/1120:50 -
2 stops33h 05m
Wed 2/1223:00 -
2 stops25h 05m
Deal found 30/9£663
Sat 21/1109:55 -
2 stops20h 00m
Mon 7/1223:00 -
1 stop19h 25m
Deal found 27/9£687

Find flight deals from Heathrow to Saint-Denis

Round-trip from

£630

One-way from

£371

Popular in

February

Cheapest in

January

Average price

£1,409
1/12-8/12
  • 1/12-8/12
  • 3 total stops
  • 52h 30m total
  • London to Saint-Denis
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13/11-31/12
  • 13/11-31/12
  • 2 total stops
  • 59h 05m total
  • London to Saint-Denis
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£32 potential increase over avg. return price).
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Cheapest flight prices on average. 7% potential price decrease (£55 potential savings vs. average return price).
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Average for round-trip flights in October 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 13/11

18:50-09:55

2 stops59h 05m

Saint-Denis Gillot

Wed 31/12

00:00-21:00

Nonstop0h 00m

£371

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Wed 11/11

06:35-09:55

3 stops23h 20m

Saint-Denis Gillot

Wed 31/12

00:00-21:00

Nonstop0h 00m

£470

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 22/11

15:15-09:55

1 stop14h 40m

Saint-Denis Gillot

Sat 5/12

08:00-09:10

2 stops29h 10m

£696
Fastest return journey

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Wed 11/11

14:45-09:10

1 stop14h 25m

Saint-Denis Gillot

Wed 31/12

00:00-21:00

Nonstop0h 00m

£758

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sat 21/11

19:20-10:50

2 stops35h 30m

Saint-Denis Gillot

Mon 7/12

16:55-10:30

2 stops21h 35m

£857

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sat 7/11

11:30-11:20

1 stop19h 50m

Saint-Denis Gillot

Sun 15/11

09:00-07:55

1 stop26h 55m

£864

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 22/11

11:30-10:50

2 stops19h 20m

Saint-Denis Gillot

Sat 5/12

17:25-21:25

2 stops32h 00m

£867

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 14/3

06:20-16:15

2 stops29h 55m

Saint-Denis Gillot

Thu 18/3

17:55-07:55

2 stops42h 00m

£888

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 14/3

15:00-12:40

1 stop17h 40m

Saint-Denis Gillot

Thu 18/3

20:40-13:45

1 stop21h 05m

£893

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Fri 9/10

06:15-09:30

2 stops24h 15m

Saint-Denis Gillot

Wed 31/12

00:00-21:00

Nonstop0h 00m

£1,031

Flights are sorted by cheapest return flights first.

Deals found on 29/9

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.

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

    Departing from London Heathrow Airport to Saint-Denis will take you 35h 30m. There are 6029 mi between London Heathrow Airport and 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.

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Alternative routes for Heathrow to Saint-Denis

Gatwick to Saint-Denis flights

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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.

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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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