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Cheap flights from London Heathrow Airport to Saint-Denis from £362

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — RUN
4 Jul — 11 Jul1
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
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 4 June 2026.

Sat 29/815:00
LHR
-
RUN
1 stop27h 05m
Multiple Airlines
Sat 12/922:10
RUN
-
LHR
1 stop19h 05m
Multiple Airlines
Deal found 4/6£707
Sat 21/1115:15
LHR
-
RUN
1 stop14h 40m
Multiple Airlines
Sun 29/1123:00
RUN
-
LHR
1 stop19h 25m
Multiple Airlines
Deal found 2/6£774
Sat 26/906:15
LHR
-
RUN
1 stop20h 20m
Multiple Airlines
Sat 10/1008:00
RUN
-
LHR
1 stop29h 30m
Multiple Airlines
Deal found 2/6£870
Tue 1/1209:05
LHR
-
RUN
2 stops21h 45m
Multiple Airlines
Tue 15/1217:10
RUN
-
LHR
2 stops43h 10m
Multiple Airlines
Deal found 3/6£889
Thu 2/717:35
LHR
-
RUN
1 stop25h 20m
Air France
Thu 9/708:50
RUN
-
LHR
1 stop15h 35m
Air France
Deal found 1/6£893
Mon 30/1117:35
LHR
-
RUN
1 stop15h 05m
Multiple Airlines
Mon 14/1220:40
RUN
-
LHR
2 stops18h 05m
Multiple Airlines
Deal found 3/6£922
Fri 3/720:50
LHR
-
RUN
2 stops45h 15m
Multiple Airlines
Sat 18/708:00
RUN
-
LHR
1 stop16h 25m
Multiple Airlines
Deal found 2/6£923
Thu 2/720:50
LHR
-
RUN
2 stops29h 45m
Multiple Airlines
Thu 9/720:25
RUN
-
LHR
1 stop20h 50m
Multiple Airlines
Deal found 1/6£940

Find flight deals from Heathrow to Saint-Denis

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Saint-Denis (RUN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 June 2026.

Round-trip from

£707

One-way from

£362

Popular in

October

Cheapest in

August

Average price

£469
29/8-12/9
  • 29/8-12/9
  • 2 total stops
  • 46h 10m total
  • London to Saint-Denis
Search Deals
19/6
  • 19/6
  • 2 total stops
  • 25h 40m total
  • London to Saint-Denis
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£225 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£49 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Saint-Denis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 June 2026.
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 - RUN

LHRRUN

London Heathrow

Sat 29/8

15:00-21:05

1 stop27h 05m

Saint-Denis Gillot

Sat 12/9

22:10-14:15

1 stop19h 05m

£707
Fastest return journey

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 21/11

15:15-09:55

1 stop14h 40m

Saint-Denis Gillot

Sun 29/11

23:00-14:25

1 stop19h 25m

£774

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Thu 2/7

20:50-05:35

2 stops29h 45m

Saint-Denis Gillot

Thu 9/7

20:25-14:15

1 stop20h 50m

£940

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Fri 21/8

19:45-21:55

1 stop23h 10m

Saint-Denis Gillot

Mon 31/8

08:50-21:25

1 stop15h 35m

£958

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 28/11

17:35-10:50

2 stops37h 15m

Saint-Denis Gillot

Sun 13/12

07:00-21:25

2 stops18h 25m

£978

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sun 29/11

11:30-10:50

2 stops19h 20m

Saint-Denis Gillot

Mon 14/12

07:00-07:55

2 stops28h 55m

£979

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 28/11

19:20-10:50

2 stops35h 30m

Saint-Denis Gillot

Tue 15/12

17:10-21:25

2 stops32h 15m

£990

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Thu 2/7

20:50-06:45

2 stops30h 55m

Saint-Denis Gillot

Wed 15/7

21:30-14:15

1 stop19h 45m

£999

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Thu 27/8

20:50-05:35

2 stops29h 45m

Saint-Denis Gillot

Mon 31/8

23:20-14:15

1 stop17h 55m

£1,004

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Mon 23/11

06:20-22:50

2 stops36h 30m

Saint-Denis Gillot

Thu 26/11

16:55-07:55

2 stops43h 00m

£1,027

Flights are sorted by cheapest return flights first.

Deals found on 4/6

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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
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.

Reviews of airlines servicing Saint-Denis

Get insights into the airlines that provide service to Saint-Denis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Saint-Denis. Reviews last updated 4 June 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Saint-Denis, such as Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.4
Good
1,596 reviews
Check prices

Food

7.0

Boarding

7.5

Entertainment

7.0

Comfort

7.4

Crew

8.2

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Grace,Apr 2026

JFK - CDG

Leg room was a bit tight and I had a hard time recovering a lost item but otherwise, great flight.
Air France
7.4
Good
1,596 reviews
Air France
7.4
Good
1,596 reviews
Check prices

Food

7.0

Boarding

7.5

Entertainment

7.0

Comfort

7.4

Crew

8.2

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Grace,Apr 2026

JFK - CDG

Leg room was a bit tight and I had a hard time recovering a lost item but otherwise, great flight.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Saint-Denis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 1 airline has 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 25h 20m. There are 6029 mi between London Heathrow Airport and Saint-Denis. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from London Heathrow Airport to Saint-Denis round-trip?

    Air France, at £403, was found to be the cheapest airline from London Heathrow Airport to Saint-Denis.. This flight start at 54% lower than the current average price 3 months from now.

  • 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

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Saint-Denis flights

Top airline flying from Heathrow to Saint-Denis

Discover the top airline that operate flights from Heathrow to Saint-Denis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£403Average£969FlexibilityNo cancel feeOn-time77%
Search Air France flights

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

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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