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

Departing from London Heathrow Airport to Saint-Denis will take you 18h. There are 6029 mi between London Heathrow Airport and Saint-Denis. This flight may include one or multiple stops.

What is the cheapest time of day to fly from LHR to RUN?

When flying from London Heathrow Airport to Saint-Denis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£385+ Cheap Flights from London Heathrow Airport to Saint-Denis

Cheap flight deals from Heathrow to Saint-Denis

Enter your travel dates to find the best prices.

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Best

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One-way

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 15 October 2026.

Mon 23/1106:20 -

1 stop22h 50m

Sun 6/1220:40 -

1 stop23h 55m

Deal found 14/10£631

Sat 28/1120:50 -

2 stops33h 05m

Sat 5/1208:00 -

2 stops29h 10m

Deal found 14/10£659

Sun 29/1120:50 -

2 stops33h 05m

Sun 6/1223:00 -

1 stop19h 25m

Deal found 15/10£664

Sat 21/1109:55 -

2 stops20h 00m

Sat 5/1208:00 -

2 stops29h 10m

Deal found 12/10£681

Mon 23/1108:55 -

1 stop20h 15m

Mon 7/1223:00 -

1 stop19h 25m

Deal found 15/10£691

Find flight deals from Heathrow to Saint-Denis

Round-trip from	£631
One-way from	£385
Popular in	February
Cheapest in	January
Average price	£1,406

23/11-6/12
2 total stops
46h 45m total
London to Saint-Denis

Search Deals

20/10-31/12
1 total stop
15h 00m 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).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (£55 potential savings vs. average return price).

Search Deals

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

Fastest return journey

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Tue 20/10

15:00-09:00

1 stop15h 00m

Saint-Denis Gillot

Wed 31/12

00:00-21:00

Nonstop0h 00m

£385

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 29/11

15:15-09:55

1 stop14h 40m

Saint-Denis Gillot

Sun 6/12

23:00-14:25

1 stop19h 25m

£690

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Thu 26/11

11:30-09:30

2 stops18h 00m

Saint-Denis Gillot

Thu 3/12

12:05-10:30

2 stops26h 25m

£816

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Mon 23/11

17:35-10:50

2 stops37h 15m

Saint-Denis Gillot

Sun 6/12

12:05-21:25

2 stops37h 20m

£827

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 8/11

06:20-09:30

2 stops23h 10m

Saint-Denis Gillot

Sun 22/11

21:05-10:30

1 stop17h 25m

£907

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 8/11

15:15-09:55

1 stop14h 40m

Saint-Denis Gillot

Sun 22/11

23:00-13:45

1 stop18h 45m

£959

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 1/11

06:20-10:50

2 stops24h 30m

Saint-Denis Gillot

Sat 5/12

12:05-07:55

2 stops47h 50m

£994

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Mon 9/11

17:35-10:50

2 stops37h 15m

Saint-Denis Gillot

Mon 23/11

07:00-16:35

2 stops37h 35m

£1,010

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Fri 6/11

06:20-10:50

2 stops24h 30m

Saint-Denis Gillot

Mon 23/11

07:00-10:30

2 stops31h 30m

£1,068

LondonSaint-Denis

LHR London Heathrow - RUN Saint-Denis Gillot

LHRRUN

London Heathrow

Sun 8/11

15:00-09:10

1 stop14h 10m

Saint-Denis Gillot

Sun 22/11

20:40-07:55

1 stop15h 15m

£1,070

Flights are sorted by cheapest return flights first.

Deals found on 15/10

Showing 1-10 of 11 resultsSorted 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.

LHR-RUN

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.

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 18h. There are 6029 mi between London Heathrow Airport and Saint-Denis. This flight may include one or multiple stops.
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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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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Cheap flights from London Heathrow Airport to Saint-Denis from £385

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Saint-Denis

Cheapest flights from Heathrow to Saint-DenisExplore 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 15 October 2026.

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 15 October 2026.

Best flights from Heathrow to Saint-DenisDiscover carefully curated flight deals from Heathrow to Saint-Denis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 October 2026.

Discover carefully curated flight deals from Heathrow to Saint-Denis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 October 2026.

Last-minute flights from Heathrow to Saint-DenisDiscover last-minute flight deals from Heathrow to Saint-Denis. Data last updated 15 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Saint-Denis. Data last updated 15 October 2026 and is based on user searches.

One-way flights from Heathrow to Saint-DenisSearch for one-way flight options from Heathrow to Saint-Denis. Find affordable one-way fares based on user searches. Data last updated 15 October 2026.

Search for one-way flight options from Heathrow to Saint-Denis. Find affordable one-way fares based on user searches. Data last updated 15 October 2026.

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Use the filters below to find and compare flights from London Heathrow Airport to Saint-Denis that are best for you.

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.

Related info for your journey

What airport do you fly into for flights to Saint-Denis from London Heathrow?

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Saint-Denis

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Saint-Denis by adding a car hire and/or hotel booking to your travel itinerary.

Search flights from Heathrow to Saint-Denis by cabin class

Find flights from Heathrow to Saint-Denis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Saint-Denis flights

Browse other Heathrow and Saint-Denis flight options. Last updated on 15 October 2026.

Other flights from Heathrow

Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 15 October 2026.

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Check out other popular destinations found by fellow travellers in 2026

Other flights to Saint-Denis

Explore flights to Saint-Denis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 15 October 2026.

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

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

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

Can Cheapflights notify me if prices for flights from Heathrow to Saint-Denis become cheaper?

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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 15 October 2026.

Best flights from Heathrow to Saint-Denis
Discover carefully curated flight deals from Heathrow to Saint-Denis that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 October 2026.

Last-minute flights from Heathrow to Saint-Denis
Discover last-minute flight deals from Heathrow to Saint-Denis. Data last updated 15 October 2026 and is based on user searches.

One-way flights from Heathrow to Saint-Denis
Search for one-way flight options from Heathrow to Saint-Denis. Find affordable one-way fares based on user searches. Data last updated 15 October 2026.