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.

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.

£352+ 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.

Cheapest

Best

Last-minute

One-way

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 5 November 2026.

Wed 2/1223:00 -

2 stops25h 05m

Wed 9/1215:15 -

1 stop14h 40m

Deal found 4/11£705

Mon 9/1123:00 -

2 stops25h 05m

Mon 16/1114:45 -

1 stop17h 55m

Deal found 3/11£736

Thu 5/1123:00 -

1 stop19h 20m

Wed 11/1120:50 -

2 stops33h 05m

Deal found 1/11£745

Fri 6/1123:00 -

1 stop21h 35m

Fri 13/1115:15 -

1 stop14h 40m

Deal found 2/11£757

Thu 5/1110:35 -

1 stop14h 50m

Wed 11/1114:45 -

1 stop13h 25m

Deal found 2/11£808

Fri 4/1221:05 -

1 stop14h 50m

Thu 10/1217:35 -

1 stop15h 45m

Deal found 3/11£819

Fri 6/1120:40 -

1 stop23h 55m

Thu 12/1120:30 -

2 stops32h 40m

Deal found 3/11£819

Fri 6/1120:45 -

1 stop15h 10m

Sat 14/1117:35 -

1 stop15h 45m

Deal found 3/11£828

Wed 2/1221:45 -

1 stop22h 50m

Wed 9/1214:45 -

1 stop13h 25m

Deal found 4/11£831

Sat 19/1217:25 -

3 stops23h 35m

Thu 7/109:00 -

2 stops27h 10m

Deal found 1/11£856

Find flight deals from Saint-Denis to Heathrow

Round-trip from	£650
One-way from	£352

18/2-7/3
2 total stops
34h 05m total
Saint-Denis to London

Search Deals

13/11-31/12
2 total stops
37h 05m 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.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Fri 13/11

23:00-08:05

2 stops37h 05m

London Heathrow

Wed 31/12

00:00-03:00

Nonstop0h 00m

£352

Fastest return journey

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Sat 12/12

11:40-07:55

1 stop24h 15m

London Heathrow

Wed 31/12

00:00-03:00

Nonstop0h 00m

£514

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Sat 6/2

21:05-07:55

1 stop14h 50m

London Heathrow

Sat 20/2

19:20-13:20

1 stop14h 00m

£793

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Thu 18/2

07:00-08:20

2 stops29h 20m

London Heathrow

Sun 7/3

09:05-22:50

2 stops33h 45m

£856

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Wed 7/4

08:50-07:55

1 stop26h 05m

London Heathrow

Wed 14/4

17:35-12:20

1 stop15h 45m

£857

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Fri 4/12

23:00-20:05

2 stops25h 05m

London Heathrow

Thu 10/12

15:15-09:55

1 stop14h 40m

£887

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Wed 7/4

16:55-08:20

2 stops42h 25m

London Heathrow

Sat 17/4

12:20-10:50

2 stops19h 30m

£891

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Fri 4/12

07:00-21:25

2 stops18h 25m

London Heathrow

Thu 10/12

14:45-13:20

1 stop18h 35m

£914

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Wed 23/12

09:00-14:25

1 stop33h 25m

London Heathrow

Sun 10/1

20:50-12:40

2 stops35h 50m

£916

Saint-DenisLondon

RUN Saint-Denis Gillot - LHR London Heathrow

RUNLHR

Saint-Denis Gillot

Wed 7/4

06:50-08:20

2 stops28h 30m

London Heathrow

Wed 14/4

19:30-10:50

2 stops36h 20m

£928

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 11 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.
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.

See more FAQs

Hounslow

Luton

Milton Keynes

Wembley

Gatwick

Slough

Ilford

Hayes

Croydon

Eastbourne

Northampton

Barnet

Brentford

Southend-on-Sea

Enfield

Southall

Harrow

Watford

Folkestone

Dagenham

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

Heathrow flight routes

Other flight options

Popular flights

Alternative routes for Saint-Denis to Heathrow

Saint-Denis to London City flights

Fly with Cheapflights

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

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?

Cheapflights simply makes it quick and affordable to book flights from Saint-Denis to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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.

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

Not ready to book yet? You can track prices for flights from Saint-Denis to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Saint-Denis to London Heathrow Airport from £352

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. 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 5 November 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 5 November 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 5 November 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 5 November 2026.

Last-minute flights from Saint-Denis to HeathrowDiscover last-minute flight deals from Saint-Denis to Heathrow. Data last updated 5 November 2026 and is based on user searches.

Discover last-minute flight deals from Saint-Denis to Heathrow. Data last updated 5 November 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 5 November 2026.

Search for one-way flight options from Saint-Denis to Heathrow. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Find flight deals from Saint-Denis to Heathrow

Round-trip from

One-way from

Cheapflights Fare Finder

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

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.

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?

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 Saint-Denis to Heathrow

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

Complete your trip

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

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Saint-Denis to Heathrow by cabin class

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

Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 November 2026.

Saint-Denis and Heathrow flights

Browse other Saint-Denis and Heathrow flight options. Last updated on 5 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 5 November 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 5 November 2026.

Last-minute flights from Saint-Denis to Heathrow
Discover last-minute flight deals from Saint-Denis to Heathrow. Data last updated 5 November 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 5 November 2026.