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Cheap flights from London Heathrow Airport to Saint-Denis from £578

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — RUN
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 31 October 2025.

Round-trip from

£578

Popular in

October

Cheapest in

June

Average price

£1,557
28/11-5/12
  • 28/11-5/12
  • 2 total stops
  • 34h 05m total
  • London to Saint-Denis
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Highest demand for flights based on searches. 18% potential increase in price (£148 potential increase over avg. return price).
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Cheapest flight prices on average. 8% potential price decrease (£50 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find 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 31 October 2025.

Fri 28/1115:15LHR - RUN
1 stop14h 40mMultiple Airlines
Fri 5/1223:00RUN - LHR
1 stop19h 25mMultiple Airlines
Deal found 29/10£578
Sun 9/1115:15LHR - RUN
1 stop14h 40mMultiple Airlines
Mon 17/1123:00RUN - LHR
1 stop19h 25mMultiple Airlines
Deal found 30/10£650
Thu 6/1115:15LHR - RUN
1 stop14h 40mMultiple Airlines
Wed 19/1123:00RUN - LHR
1 stop19h 25mMultiple Airlines
Deal found 29/10£661
Fri 7/1115:15LHR - RUN
1 stop34h 15mMultiple Airlines
Mon 17/1123:00RUN - LHR
1 stop19h 25mMultiple Airlines
Deal found 30/10£665
Sat 8/1115:15LHR - RUN
1 stop16h 05mMultiple Airlines
Sun 16/1109:15RUN - LHR
1 stop33h 10mMultiple Airlines
Deal found 30/10£666
Sun 9/1115:15LHR - RUN
1 stop14h 40mMultiple Airlines
Sun 16/1123:00RUN - LHR
1 stop19h 25mMultiple Airlines
Deal found 30/10£674
Sat 29/1115:15LHR - RUN
1 stop16h 05mMultiple Airlines
Sat 6/1222:00RUN - LHR
1 stop20h 25mMultiple Airlines
Deal found 30/10£678
Fri 7/1115:15LHR - RUN
1 stop34h 15mMultiple Airlines
Sun 16/1123:00RUN - LHR
1 stop19h 25mMultiple Airlines
Deal found 30/10£688
Sun 9/1115:15LHR - RUN
1 stop14h 40mMultiple Airlines
Sat 15/1123:00RUN - LHR
1 stop19h 25mMultiple Airlines
Deal found 30/10£734
Sat 15/1115:15LHR - RUN
1 stop14h 40mMultiple Airlines
Fri 21/1123:00RUN - LHR
1 stop19h 25mMultiple Airlines
Deal found 29/10£755
Sat 8/1115:15LHR - RUN
1 stop14h 40mMultiple Airlines
Mon 17/1123:00RUN - LHR
1 stop19h 25mMultiple Airlines
Deal found 30/10£762

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 31 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Saint-Denis that are best for you.

Fly from

Heathrow

Fly to

Saint-Denis

Route

Depart

Return

Price

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Fri 28/11

15:15-09:55

1 stop14h 40m

Saint-Denis Gillot

Fri 5/12

23:00-14:25

1 stop19h 25m

£578

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 29/11

15:15-11:20

1 stop16h 05m

Saint-Denis Gillot

Sat 6/12

22:00-14:25

1 stop20h 25m

£678

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Fri 27/2

15:15-11:20

1 stop16h 05m

Saint-Denis Gillot

Sat 7/3

22:00-14:25

1 stop20h 25m

£688

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Mon 15/12

15:15-09:55

1 stop14h 40m

Saint-Denis Gillot

Mon 22/12

10:05-15:30

2 stops33h 25m

£832

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Thu 12/3

06:20-10:50

2 stops24h 30m

Saint-Denis Gillot

Mon 16/3

18:00-08:00

2 stops42h 00m

£886

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sun 12/4

07:20-09:00

1 stop22h 40m

Saint-Denis Gillot

Thu 23/4

22:10-22:25

1 stop27h 15m

£907

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Mon 20/4

16:50-22:50

2 stops27h 00m

Saint-Denis Gillot

Thu 30/4

10:05-07:05

2 stops24h 00m

£923

Flights are sorted by cheapest return flights first.

Deals found on 29/10

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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Saint-Denis

What is the cheapest month to book a flight from London Heathrow Airport to Saint-Denis?

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Saint-Denis (average of £61). Flying from London Heathrow Airport to Saint-Denis in December is currently the most expensive (average of £1,468). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Heathrow to Saint-Denis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 October 2025.

It’s typically best to fly out from London Heathrow Airport to Saint-Denis in the afternoon. Doing so could potentially save you 80% on the flight price compared to flying at midday, which is usually more expensive.

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 31 October 2025.
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
1,482 reviews
Check prices

Food

7.0

Boarding

7.4

Comfort

7.3

Overall

7.4

Entertainment

7.0

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air France
7.4
Good
1,482 reviews
Air France
7.4
Good
1,482 reviews
Check prices

Food

7.0

Boarding

7.4

Comfort

7.3

Overall

7.4

Entertainment

7.0

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

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 2 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.

  • What are the cheapest airlines flying from London Heathrow Airport to Saint-Denis round-trip?

    Air Austral, at £655, was found to be the cheapest airline from London Heathrow Airport to Saint-Denis. An alternate airline flying to your destination would be Air France. These flights start at 22% 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.

  • What is the cheapest month to book a flight from London Heathrow Airport to Saint-Denis?

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Saint-Denis (average of £61). Flying from London Heathrow Airport to Saint-Denis in December is currently the most expensive (average of £1,468). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 2 airlines flying from Heathrow to Saint-Denis

Discover the top 2 airlines 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 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air AustralCheapest£655Average£1,482FlexibilityNo cancel feeOn-time66%
Search Air Austral flights
Air FranceCheapest£844Average£1,158FlexibilityNo 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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