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Cheap flights from Saint-Denis to London Heathrow Airport from £560

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
RUN — LHR
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights from Saint-Denis to Heathrow
Explore the most affordable flight options available from Saint-Denis to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 November 2025.

Fri 5/1223:00RUN - LHR
1 stop19h 25mMultiple Airlines
Tue 9/1215:15LHR - RUN
1 stop14h 40mMultiple Airlines
Deal found 26/11£817
Thu 27/1120:40RUN - LHR
1 stop15h 15mMultiple Airlines
Mon 1/1208:55LHR - RUN
1 stop20h 15mMultiple Airlines
Deal found 26/11£831
Wed 24/1215:30RUN - LHR
3 stops23h 15mMultiple Airlines
Thu 1/113:45LHR - RUN
2 stops20h 15mMultiple Airlines
Deal found 26/11£1,017
Wed 24/1210:40RUN - LHR
1 stop25h 15mAir France
Thu 1/109:00LHR - RUN
1 stop19h 20mAir France
Deal found 25/11£1,298
Wed 24/1212:05RUN - LHR
2 stops26h 25mAir Mauritius
Thu 1/111:30LHR - RUN
2 stops19h 20mAir Mauritius
Deal found 25/11£1,342

Cheap flight deals from Saint-Denis to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Saint-Denis (RUN) to Heathrow (LHR). 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 27 November 2025.

Round-trip from

£885

One-way from

£560

Popular in

December

Cheapest in

November

Average price

£499
Air Austral
  • Air Austral
  • 16/2-23/2
  • 2 total stops
  • 32h 15m total
  • Saint-Denis to London
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2/12
  • 2/12
  • 2 total stops
  • 47h 25m total
  • Saint-Denis to London
Search Deals
High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Saint-Denis to Heathrow 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 27 November 2025.
Use the filters below to find and compare flights from Saint-Denis to London Heathrow Airport that are best for you.

Fly from

Saint-Denis

Fly to

Heathrow

Route

Depart

Return

Price

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Mon 16/2

20:40-10:30

1 stop17h 50m

London Heathrow

Mon 23/2

14:45-09:10

1 stop14h 25m

£885

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Thu 30/4

12:05-07:05

2 stops22h 00m

London Heathrow

Sun 17/5

22:15-22:50

2 stops21h 35m

£1,008

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Wed 24/12

15:30-10:45

3 stops23h 15m

London Heathrow

Thu 1/1

13:45-15:30

2 stops21h 45m

£1,017

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Mon 16/2

12:05-07:10

2 stops23h 05m

London Heathrow

Mon 23/2

22:00-22:50

2 stops20h 50m

£1,025

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Mon 23/2

20:40-10:30

1 stop17h 50m

London Heathrow

Thu 26/2

14:45-09:10

1 stop14h 25m

£1,032

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Wed 7/1

14:05-11:40

2 stops25h 35m

London Heathrow

Tue 20/1

13:40-10:50

2 stops17h 10m

£1,161

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Wed 24/12

10:40-07:55

1 stop25h 15m

London Heathrow

Thu 1/1

09:00-08:20

1 stop19h 20m

£1,298

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Tue 2/12

16:50-12:15

2 stops47h 25m

£560

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Sat 27/12

12:40-14:25

1 stop29h 45m

£667

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Best time to book a flight from Saint-Denis to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Saint-Denis 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.

Related info for your journey

Find useful and relevant information for your journey from Saint-Denis to Heathrow. 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 from for flights from Saint-Denis to London Heathrow?

    Located just 3.9 mi from the city center, Saint-Denis Gillot is the airport most travelers will use when flying to London Heathrow from Saint-Denis. Booking flights from Gillot (RUN) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

  • How long is the flight from Saint-Denis to London Heathrow Airport?

    Departing from Saint-Denis to London Heathrow Airport will take you 17h 50m. Airlines will cover a distance of 6029 mi.

  • Can I find deals for flights from Saint-Denis to Heathrow that include hotel bookings?

    Yes. In addition to deals on Saint-Denis to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Saint-Denis to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint-Denis to Heathrow.

  • Can I find deals for business class flights from Saint-Denis to Heathrow?

    Yes. Cheapflights offers flight deals from Saint-Denis to Heathrow 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Slough
Croydon
Hounslow
Northampton
Gatwick
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Brentford
Winchester
Swindon
Crawley
Romford
Chichester
Bedford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Saint-Denis to Heathrow

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

Fly with Cheapflights

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

When you search for this flight from Saint-Denis to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Saint-Denis to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Saint-Denis to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Saint-Denis to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Saint-Denis to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Saint-Denis to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Saint-Denis to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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