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Cheap flights from London Heathrow Airport to Saint-Denis from £639

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — RUN
9 Jul — 16 Jul1
1 adult

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 4 July 2025.

Round-trip from

£692

One-way from

£639

Popular in

December

Cheapest in

November

Average price

£1,404
18/9-3/10
  • 18/9-3/10
  • 2 total stops
  • 34h 00m total
  • London to Saint-Denis
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11/8
  • 11/8
  • 2 total stops
  • 34h 45m total
  • London to Saint-Denis
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High demand for flights, 11% potential price rise
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Cheapest flight prices on average. 9% potential price decrease (£47 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Find flight deals from Heathrow to Saint-Denis

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 2025.

Thu 18/915:05LHR - RUN
1 stop14h 55mMultiple Airlines
Fri 3/1022:10RUN - LHR
1 stop19h 05mMultiple Airlines
Deal found 3/7£692
Sat 13/919:45LHR - RUN
1 stop30h 45mAir France
Wed 24/921:00RUN - LHR
1 stop22h 35mAir France
Deal found 2/7£939
Wed 17/911:30LHR - RUN
2 stops32h 20mAir Mauritius
Sun 5/1010:05RUN - LHR
2 stops51h 25mAir Mauritius
Deal found 3/7£1,025

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 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

Thu 18/9

15:05-09:00

1 stop14h 55m

Saint-Denis Gillot

Fri 3/10

22:10-14:15

1 stop19h 05m

£692

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 13/9

19:45-05:30

1 stop30h 45m

Saint-Denis Gillot

Wed 24/9

21:00-16:35

1 stop22h 35m

£939

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Wed 17/9

11:30-22:50

2 stops32h 20m

Saint-Denis Gillot

Sun 5/10

10:05-10:30

2 stops51h 25m

£1,025

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Mon 11/8

21:05-10:50

2 stops34h 45m

£639

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Tue 29/7

11:30-08:10

1 stop17h 40m

£758

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Sat 26/7

21:05-09:25

2 stops33h 20m

£841

Flights are sorted by cheapest return flights first.

Deals found on 2/7

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 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 4 July 2025.

It’s typically best to fly out from London Heathrow Airport to Saint-Denis in the afternoon. Doing so could potentially save you 81% on the flight price compared to flying at midday, which is usually more expensive.

How much does it cost for a return flight from London Heathrow Airport to Saint-Denis?

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 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Saint-Denis, such as Air France and Air India. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.5
Good
1,473 reviews
Check prices

Entertainment

7.0

Overall

7.5

Comfort

7.4

Crew

8.2

Boarding

7.4

Food

7.0

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
7.5
Good
1,473 reviews
Air France
7.5
Good
1,473 reviews
Check prices

Entertainment

7.0

Overall

7.5

Comfort

7.4

Crew

8.2

Boarding

7.4

Food

7.0

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 India
5.5
Fair
2,926 reviews
Air France
7.5
Good
1,473 reviews
Check prices

Entertainment

7.0

Overall

7.5

Comfort

7.4

Crew

8.2

Boarding

7.4

Food

7.0

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 France, at £939, was found to be the cheapest airline from London Heathrow Airport to Saint-Denis. An alternate airline flying to your destination would be Air Mauritius.

  • 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 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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest£58Average£67FlexibilityNo cancel feeOn-time88%
Search Vueling flights
Air FranceCheapest£814Average£993FlexibilityNo 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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