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

Departing from Saint-Denis to London Heathrow Airport will take you 14h 50m. Airlines will cover a distance of 6029 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

When flying from Saint-Denis to London Heathrow Airport, 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 from for flights from Saint-Denis to London Heathrow?

Located just 3.9 mi from the city center, Saint-Denis Gillot is the airport most travelers will use when flying to London Heathrow from Saint-Denis. Booking flights from Gillot (RUN) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Saint-Denis to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£414+ Cheap Flights from Saint-Denis to London Heathrow Airport

Cheap flight deals from Saint-Denis to Heathrow

Enter your travel dates to find the best prices.

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Cheapest flights from Saint-Denis to Heathrow
Explore the most affordable flight options available from Saint-Denis to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Wed 9/921:30 -

1 stop19h 45m

Wed 16/915:00 -

1 stop16h 30m

Deal found 2/9£772

Wed 14/1023:35 -

1 stop24h 50m

Sat 31/1017:35 -

1 stop15h 05m

Deal found 1/9£828

Fri 11/921:30 -

1 stop19h 45m

Fri 18/915:00 -

1 stop16h 30m

Deal found 31/8£836

Fri 4/908:50 -

1 stop15h 35m

Thu 10/917:35 -

1 stop15h 45m

Deal found 30/8£928

Fri 4/921:30 -

1 stop19h 45m

Fri 11/915:00 -

1 stop16h 30m

Deal found 30/8£956

Mon 2/1121:05 -

1 stop14h 50m

Mon 16/1114:45 -

1 stop18h 35m

Deal found 3/9£958

Find flight deals from Saint-Denis to Heathrow

Round-trip from	£828
One-way from	£414

14/10-31/10
2 total stops
39h 55m total
Saint-Denis to London

Search Deals

30/11-31/12
1 total stop
18h 45m total
Saint-Denis to London

Search Deals

Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Sun 29/11

23:00-20:05

2 stops49h 05m

London Heathrow

Wed 31/12

00:00-03:00

Nonstop0h 00m

£418

Fastest return journey

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Sun 29/11

20:40-07:55

1 stop15h 15m

London Heathrow

Wed 31/12

00:00-03:00

Nonstop0h 00m

£599

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Mon 2/11

21:05-07:55

1 stop14h 50m

London Heathrow

Mon 16/11

14:45-13:20

1 stop18h 35m

£958

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Sun 11/10

22:10-14:15

1 stop19h 05m

London Heathrow

Fri 23/10

15:00-09:00

1 stop15h 00m

£1,006

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Wed 14/10

08:50-07:40

2 stops25h 50m

London Heathrow

Sat 31/10

17:50-13:20

2 stops39h 30m

£1,015

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Mon 2/11

21:05-13:50

2 stops20h 45m

London Heathrow

Mon 16/11

14:45-13:20

1 stop18h 35m

£1,046

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Mon 12/10

20:25-13:50

2 stops20h 25m

London Heathrow

Thu 22/10

15:00-12:20

1 stop18h 20m

£1,067

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Mon 12/10

22:30-14:15

1 stop18h 45m

London Heathrow

Sat 24/10

15:00-10:30

1 stop16h 30m

£1,074

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Mon 21/12

21:30-14:25

1 stop20h 55m

London Heathrow

Sat 26/12

15:15-21:00

1 stop25h 45m

£1,114

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Sat 10/10

08:50-21:25

1 stop15h 35m

London Heathrow

Thu 22/10

15:00-12:20

1 stop18h 20m

£1,142

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 16 resultsSorted by cheapest first

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

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Saint-Denis with our price prediction graph.

RUN-LHR

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 from for flights from Saint-Denis to London Heathrow?
Located just 3.9 mi from the city center, Saint-Denis Gillot is the airport most travelers will use when flying to London Heathrow from Saint-Denis. Booking flights from Gillot (RUN) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.
How long is the flight from Saint-Denis to London Heathrow Airport?
Departing from Saint-Denis to London Heathrow Airport will take you 14h 50m. Airlines will cover a distance of 6029 mi. Both multi-stop and direct flights can be found to your destination and back.
Can I find deals for flights from Saint-Denis to Heathrow that include hotel bookings?
Yes. In addition to deals on Saint-Denis to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Saint-Denis to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint-Denis to Heathrow.
Can I find deals for business class flights from Saint-Denis to Heathrow?
Yes. Cheapflights offers flight deals from Saint-Denis to Heathrow 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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When you search for this flight from Saint-Denis to Heathrow, 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 Saint-Denis to Heathrow?

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Saint-Denis to Heathrow, users can toggle the no change fees filter when performing a flight search.

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Cheap flights from Saint-Denis to London Heathrow Airport from £414

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Saint-Denis to Heathrow

Cheapest flights from Saint-Denis to HeathrowExplore the most affordable flight options available from Saint-Denis to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Explore the most affordable flight options available from Saint-Denis to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from Saint-Denis to HeathrowDiscover carefully curated flight deals from Saint-Denis to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Discover carefully curated flight deals from Saint-Denis to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Last-minute flights from Saint-Denis to HeathrowDiscover last-minute flight deals from Saint-Denis to Heathrow. Data last updated 4 September 2026 and is based on user searches.

Discover last-minute flight deals from Saint-Denis to Heathrow. Data last updated 4 September 2026 and is based on user searches.

One-way flights from Saint-Denis to HeathrowSearch for one-way flight options from Saint-Denis to Heathrow. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Search for one-way flight options from Saint-Denis to Heathrow. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

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

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Related info for your journey

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

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

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

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

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

Travelling to a place near London Heathrow Airport?

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Alternative routes for Saint-Denis to Heathrow

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Direct flights to England

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Other flights to Heathrow

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

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Cheapest flights from Saint-Denis to Heathrow
Explore the most affordable flight options available from Saint-Denis to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from Saint-Denis to Heathrow
Discover carefully curated flight deals from Saint-Denis to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Last-minute flights from Saint-Denis to Heathrow
Discover last-minute flight deals from Saint-Denis to Heathrow. Data last updated 4 September 2026 and is based on user searches.

One-way flights from Saint-Denis to Heathrow
Search for one-way flight options from Saint-Denis to Heathrow. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.