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

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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — RUN
3 Aug — 10 Aug1
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 July 2026.

Fri 28/815:00
LHR
-
RUN
1 stop16h 30m
Multiple Airlines
Sat 12/921:30
RUN
-
LHR
1 stop19h 45m
Multiple Airlines
Deal found 29/6£690
Sat 5/915:00
LHR
-
RUN
1 stop15h 00m
Multiple Airlines
Thu 10/922:10
RUN
-
LHR
1 stop19h 05m
Multiple Airlines
Deal found 1/7£695
Fri 28/815:00
LHR
-
RUN
1 stop15h 00m
Multiple Airlines
Sun 13/922:10
RUN
-
LHR
1 stop19h 05m
Multiple Airlines
Deal found 3/7£704
Sat 14/1115:15
LHR
-
RUN
1 stop14h 40m
Multiple Airlines
Sat 21/1108:00
RUN
-
LHR
1 stop34h 25m
Multiple Airlines
Deal found 30/6£774
Sat 29/815:00
LHR
-
RUN
1 stop16h 30m
Multiple Airlines
Sat 12/921:30
RUN
-
LHR
1 stop19h 45m
Multiple Airlines
Deal found 3/7£786
Thu 9/717:35
LHR
-
RUN
1 stop25h 20m
Air France
Sun 20/908:50
RUN
-
LHR
1 stop15h 35m
Air France
Deal found 2/7£799
Sat 19/915:00
LHR
-
RUN
1 stop35h 35m
Multiple Airlines
Thu 24/922:10
RUN
-
LHR
1 stop19h 05m
Multiple Airlines
Deal found 30/6£814

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 July 2026.

Round-trip from

£690

One-way from

£371

Popular in

December

Cheapest in

August

Average price

£1,502
28/8-12/9
  • 28/8-12/9
  • 2 total stops
  • 36h 15m total
  • London to Saint-Denis
Search Deals
10/11
  • 10/11
  • 1 total stop
  • 14h 40m total
  • London to Saint-Denis
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£88 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£57 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 July 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
Fastest return journey

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Fri 28/8

15:00-09:00

1 stop15h 00m

Saint-Denis Gillot

Sun 13/9

22:10-14:15

1 stop19h 05m

£704

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 5/9

20:50-05:35

2 stops29h 45m

Saint-Denis Gillot

Thu 10/9

22:10-14:15

1 stop19h 05m

£746

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Fri 28/8

15:00-09:00

1 stop15h 00m

Saint-Denis Gillot

Sat 12/9

22:10-16:00

2 stops20h 50m

£752

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 14/11

15:15-09:55

1 stop14h 40m

Saint-Denis Gillot

Sat 21/11

08:00-09:10

2 stops29h 10m

£835

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Thu 8/10

20:40-22:50

2 stops23h 10m

Saint-Denis Gillot

Sat 24/10

18:00-14:50

2 stops23h 50m

£936

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Fri 9/10

19:50-21:10

2 stops22h 20m

Saint-Denis Gillot

Sat 24/10

10:10-12:40

2 stops29h 30m

£956

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Tue 20/10

14:25-13:15

2 stops19h 50m

Saint-Denis Gillot

Wed 28/10

17:10-13:50

2 stops24h 40m

£977

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Mon 17/8

20:50-09:00

2 stops33h 10m

Saint-Denis Gillot

Mon 24/8

23:20-14:15

1 stop17h 55m

£1,107
Cheapest one-way

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 19/12

20:50-21:00

2 stops44h 10m

£610

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Tue 14/7

20:50-05:35

3 stops53h 45m

£643

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Showing 1-10 of 11 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 July 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
7.5
Good
1,618 reviews
Check prices

Boarding

7.5

Crew

8.2

Entertainment

7.0

Comfort

7.4

Food

7.0

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Patrick,Jun 2026

CDG - BER

It was really terrific. Timely boarding, plane was extremely comfortable (hot day in Paris), and food was delicious. I could not have been more pleased.
Air France
7.5
Good
1,618 reviews
Air France
7.5
Good
1,618 reviews
Check prices

Boarding

7.5

Crew

8.2

Entertainment

7.0

Comfort

7.4

Food

7.0

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Patrick,Jun 2026

CDG - BER

It was really terrific. Timely boarding, plane was extremely comfortable (hot day in Paris), and food was delicious. I could not have been more pleased.

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.

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

    Air France, at £406, was found to be the cheapest airline from London Heathrow Airport to Saint-Denis.. This flight start at 55% 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

Browse thousands of different options on Cheapflights for your next trip

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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 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£406Average£1,056FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

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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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