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Cheap flights from Saint-Denis to London Heathrow Airport from £562

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/1. Fares are subject to change and may not be available on all flights or dates of travel.
RUN — LHR
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Saint-Denis to Heathrow

Enter your travel dates to find the best prices.

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 12 December 2025.

Wed 24/1210:40RUN - LHR
1 stop25h 15mAir France
Thu 1/114:45LHR - RUN
1 stop13h 35mAir France
Deal found 11/12£849
Wed 24/1210:40RUN - LHR
1 stop25h 15mAir France
Sat 27/1206:20LHR - RUN
1 stop22h 00mAir France
Deal found 9/12£901
Wed 24/1215:30RUN - LHR
3 stops23h 15mMultiple Airlines
Thu 1/113:45LHR - RUN
2 stops20h 15mMultiple Airlines
Deal found 11/12£1,102
Wed 24/1215:30RUN - LHR
2 stops28h 00mMultiple Airlines
Sat 27/1215:15LHR - RUN
1 stop14h 40mMultiple Airlines
Deal found 9/12£1,140
Wed 24/1212:05RUN - LHR
2 stops23h 55mAir Mauritius
Sat 27/1209:00LHR - RUN
2 stops20h 25mAir Mauritius
Deal found 9/12£1,422
Thu 25/1206:55RUN - LHR
2 stops17h 55mMultiple Airlines
Thu 1/113:45LHR - RUN
2 stops20h 00mMultiple Airlines
Deal found 11/12£1,680

Find 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 12 December 2025.

Round-trip from

£562

Popular in

December

Cheapest in

November

Average price

£1,194
25/1-1/2
  • 25/1-1/2
  • 2 total stops
  • 34h 05m total
  • Saint-Denis to London
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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 5% potential price decrease (£31 potential savings vs. average return price).
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Average for round-trip flights in December 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 12 December 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

Sun 25/1

23:00-14:25

1 stop19h 25m

London Heathrow

Sun 1/2

15:15-09:55

1 stop14h 40m

£562

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Wed 24/12

10:40-07:55

1 stop25h 15m

London Heathrow

Thu 1/1

14:45-08:20

1 stop13h 35m

£849

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Wed 24/12

10:40-07:55

1 stop25h 15m

London Heathrow

Sat 27/12

06:20-08:20

1 stop22h 00m

£901

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Wed 24/12

15:30-10:45

3 stops23h 15m

London Heathrow

Thu 1/1

13:45-14:00

2 stops20h 15m

£1,102

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Wed 7/1

12:05-07:10

2 stops23h 05m

London Heathrow

Tue 20/1

09:10-11:45

2 stops22h 35m

£1,202

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Wed 24/12

12:05-08:00

2 stops23h 55m

London Heathrow

Sat 27/12

09:00-09:25

2 stops20h 25m

£1,422

Saint-DenisLondon

RUN - LHR

RUNLHR

Saint-Denis Gillot

Wed 7/1

07:00-21:25

2 stops18h 25m

London Heathrow

Tue 20/1

17:35-08:20

1 stop34h 45m

£1,535

Flights are sorted by cheapest return flights first.

Deals found on 11/12

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 25h 15m. 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
Croydon
Slough
Northampton
Hounslow
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Watford
Hayes
Crawley
Winchester
Swindon
Deal
Bedford
Romford
Chichester

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

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 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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