Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Saint-Denis from £540

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — RUN
30 Mar — 6 Apr1
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 25 March 2025.

Round-trip from

£557

Popular in

December

Cheapest in

November

Average price

£315
9/5-24/5
  • 9/5-24/5
  • 2 total stops
  • 45h 10m total
  • London to Saint-Denis
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£98 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease (£65 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 25 March 2025.

Tue 25/315:15LHR - RUN
1 stop15h 35mMultiple Airlines
Tue 1/421:00RUN - LHR
1 stop20h 15mMultiple Airlines
Deal found 24/3£540
Sat 27/1211:30LHR - RUN
1 stop16h 30mAir France
Wed 31/1210:20RUN - LHR
1 stop15h 05mAir France
Deal found 25/3£1,146
Thu 11/1211:30LHR - RUN
2 stops19h 20mAir Mauritius
Tue 23/1217:25RUN - LHR
2 stops24h 20mAir Mauritius
Deal found 25/3£1,166
Mon 7/420:55LHR - RUN
2 stops54h 35mKLM
Mon 14/408:45RUN - LHR
2 stops25h 55mKLM
Deal found 24/3£1,172

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 25 March 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 9/5

15:05-20:10

1 stop26h 05m

Saint-Denis Gillot

Sat 24/5

22:10-14:15

1 stop19h 05m

£557

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Mon 7/4

20:55-06:30

2 stops54h 35m

Saint-Denis Gillot

Mon 14/4

08:45-07:40

2 stops25h 55m

£1,172

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Tue 8/4

09:00-10:50

2 stops22h 50m

Saint-Denis Gillot

Mon 14/4

17:25-21:25

2 stops31h 00m

£1,436

LondonSaint-Denis

LHR - RUN

LHRRUN

London Heathrow

Wed 30/7

19:50-22:50

2 stops24h 00m

£811

Flights are sorted by cheapest return flights first.

Deals found on 25/3

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 25 March 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.

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 25 March 2025.
KLM
7.8
Good
1,319 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,319 reviews
KLM
7.8
Good
1,319 reviews
Check prices

Comfort

7.7

Crew

8.4

Overall

7.8

Entertainment

7.1

Boarding

7.8

Food

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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

    KLM, at £1,172, 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£859Average£1,129FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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.