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Cheap flights from Istanbul Airport to London Heathrow Airport from £55

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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
IST — LHR
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Istanbul to London Heathrow are usually found in March or February, booked 37 days in advance, depart on a Tuesday or Monday and return on a Tuesday

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Cheapest flights from Istanbul to Heathrow
Explore the most affordable flight options available from Istanbul to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2025.

Sat 29/1118:40IST - LHR
Nonstop4h 15mBritish Airways
Thu 4/1206:40LHR - IST
Nonstop3h 55mBritish Airways
Deal found 20/11£155
Sat 29/1118:40IST - LHR
Nonstop4h 15mBritish Airways
Sun 30/1118:15LHR - IST
Nonstop3h 55mBritish Airways
Deal found 20/11£161
Thu 18/1214:35IST - LHR
Nonstop4h 25mBritish Airways
Mon 29/1217:55LHR - IST
Nonstop3h 55mBritish Airways
Deal found 18/11£161
Fri 12/1214:55IST - LHR
Nonstop4h 25mBritish Airways
Sun 28/1218:15LHR - IST
Nonstop3h 55mBritish Airways
Deal found 19/11£164
Sat 20/1218:40IST - LHR
Nonstop4h 15mBritish Airways
Thu 8/106:40LHR - IST
Nonstop3h 55mBritish Airways
Deal found 19/11£166
Wed 3/1214:45IST - LHR
Nonstop4h 25mBritish Airways
Sun 7/1218:15LHR - IST
Nonstop3h 55mBritish Airways
Deal found 20/11£167
Fri 19/1214:55IST - LHR
Nonstop4h 25mBritish Airways
Sun 28/1218:15LHR - IST
Nonstop3h 55mBritish Airways
Deal found 18/11£168
Sat 22/1107:35IST - LHR
Nonstop4h 30mBritish Airways
Sat 29/1110:30LHR - IST
Nonstop3h 55mBritish Airways
Deal found 19/11£168
Thu 4/1217:55IST - LHR
1 stop5h 55mMultiple Airlines
Sun 7/1209:00LHR - IST
1 stop15h 50mMultiple Airlines
Deal found 19/11£169
Fri 5/1218:40IST - LHR
Nonstop4h 15mBritish Airways
Sun 7/1218:15LHR - IST
Nonstop3h 55mBritish Airways
Deal found 19/11£170
Wed 24/1218:45IST - LHR
Nonstop4h 15mBritish Airways
Fri 2/118:15LHR - IST
Nonstop3h 55mBritish Airways
Deal found 20/11£172
Mon 22/1217:55IST - LHR
1 stop5h 55mKLM
Wed 31/1206:30LHR - IST
1 stop7h 25mKLM
Deal found 20/11£173

Cheap flight deals from Istanbul to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Istanbul (IST) 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 21 November 2025.

Round-trip from

£151

One-way from

£55

Popular in

August

Cheapest in

March

Average price

£213

Good round-trip deal

£208 or less

Good one-way deal

£104 or less
British Airways
  • British Airways
  • 16/1-28/1
  • Nonstop
  • 8h 10m total
  • Istanbul to London
Search Deals
British Airways
  • British Airways
  • 7/3
  • Nonstop
  • 4h 25m total
  • Istanbul to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£39 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Istanbul to London Heathrow.
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Price to beat on a one-way flight from Istanbul to London Heathrow.
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Istanbul 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 21 November 2025.
Use the filters below to find and compare flights from Istanbul Airport to London Heathrow Airport that are best for you.

Fly from

Istanbul

Fly to

Heathrow

Route

Depart

Return

Price

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sat 7/3

14:55-16:20

Nonstop4h 25m

London Heathrow

Wed 11/3

18:05-01:00

Nonstop3h 55m

£153

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Mon 19/1

18:40-19:55

Nonstop4h 15m

London Heathrow

Mon 26/1

07:25-14:20

Nonstop3h 55m

£154

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 15/1

18:40-19:55

Nonstop4h 15m

London Heathrow

Sun 18/1

13:20-20:15

Nonstop3h 55m

£154

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Fri 16/1

18:40-19:55

Nonstop4h 15m

London Heathrow

Wed 21/1

18:05-01:00

Nonstop3h 55m

£155

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sat 17/1

14:55-16:20

Nonstop4h 25m

London Heathrow

Wed 21/1

18:05-01:00

Nonstop3h 55m

£158

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 15/1

17:55-20:50

1 stop5h 55m

London Heathrow

Sun 18/1

15:00-03:50

1 stop9h 50m

£166

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sun 18/1

17:55-20:50

1 stop5h 55m

London Heathrow

Mon 26/1

17:35-03:50

1 stop7h 15m

£166

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sun 21/12

21:20-22:35

Nonstop4h 15m

London Heathrow

Mon 29/12

07:25-14:20

Nonstop3h 55m

£168

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Fri 19/12

14:55-16:20

Nonstop4h 25m

London Heathrow

Sun 28/12

18:15-01:10

Nonstop3h 55m

£168

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 24/12

18:45-20:00

Nonstop4h 15m

London Heathrow

Fri 2/1

07:00-13:55

Nonstop3h 55m

£172

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 20 results
1
2

Best time to book a flight from Istanbul to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Istanbul 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 Istanbul Airport to London Heathrow Airport

How far ahead should I book a flight from Istanbul Airport to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Istanbul to Heathrow. Price data was last updated on 14 November 2025.

Booking 37 days in advance of your planned departure date is, on average, the best time to get cheap flights from Istanbul Airport to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Istanbul Airport to London Heathrow Airport?

Currently, March is the cheapest month in which you can book a flight from Istanbul Airport to London Heathrow Airport (average of £94). Flying from Istanbul Airport to London Heathrow Airport in April is currently the most expensive (average of £180). 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 IST to LHR?

Find hourly flight availability from Istanbul to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 November 2025.

It’s optimal to fly from Istanbul Airport to London Heathrow Airport in the evening. By choosing this option you can save up to 56% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Istanbul Airport to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from Istanbul to Heathrow. Price data was last updated on 2 November 2025.

Travellers seeking maximum savings on their Istanbul Airport to London Heathrow Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from Istanbul Airport to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 21 November 2025.
Read reviews from past customers who have flown with Turkish Airlines and British Airways from Istanbul Airport to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.3
Good
4,044 reviews
Check prices

Food

7.4

Boarding

7.3

Comfort

7.3

Entertainment

7.4

Overall

7.3

Crew

7.7

Reviews

1 / 20
8.0
Excellent

Assia,Nov 2025

IST - YUL

Wide chairs, wide screen, possibility to pair our cellphone with the screen. Tasty food.
Turkish Airlines
7.3
Good
4,044 reviews
Turkish Airlines
7.3
Good
4,044 reviews
Check prices

Food

7.4

Boarding

7.3

Comfort

7.3

Entertainment

7.4

Overall

7.3

Crew

7.7

Reviews

1 / 20
8.0
Excellent

Assia,Nov 2025

IST - YUL

Wide chairs, wide screen, possibility to pair our cellphone with the screen. Tasty food.
British Airways
6.7
Okay
7,533 reviews
Turkish Airlines
7.3
Good
4,044 reviews
Check prices

Food

7.4

Boarding

7.3

Comfort

7.3

Entertainment

7.4

Overall

7.3

Crew

7.7

Reviews

1 / 20
8.0
Excellent

Assia,Nov 2025

IST - YUL

Wide chairs, wide screen, possibility to pair our cellphone with the screen. Tasty food.

Related info for your journey

Find useful and relevant information for your journey from Istanbul to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Istanbul Airport to London Heathrow Airport?

    For as low as £153, British Airways can have you in London Heathrow Airport from Istanbul Airport in 4h 25m. Istanbul Airport and London Heathrow Airport are separated by a distance of 1545 mi. Most flights are nonstop.

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

    Our cheapest airline available from Istanbul Airport to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as £142 on this airline. An additional option worth looking into is Turkish Airlines, starting at £186. British Airways is 37% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Istanbul Airport to London Heathrow Airport?

    The top 3 most reliable airlines when flying from Istanbul Airport to London Heathrow Airport are British Airways (82%), American Airlines (78%) and Avianca (71%).

  • What are the cheapest flights from Istanbul Airport to London Heathrow Airport?

    The cheapest flight price from Istanbul Airport to London Heathrow Airport is £59. On average you can expect to pay £268. The most popular route, (Istanbul - London Heathrow), can usually be booked for £151.

  • Can I find deals for flights from Istanbul to Heathrow that include hotel bookings?

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

  • How can I find direct flights from Istanbul to Heathrow?

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

  • Can I find deals for business class flights from Istanbul to Heathrow?

    Yes. Cheapflights offers flight deals from Istanbul 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.

  • What is the cheapest month to book a flight from Istanbul Airport to London Heathrow Airport?

    Currently, March is the cheapest month in which you can book a flight from Istanbul Airport to London Heathrow Airport (average of £94). Flying from Istanbul Airport to London Heathrow Airport in April is currently the most expensive (average of £180). 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

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
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

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.

Top 2 airlines flying from Istanbul to Heathrow

Discover the top 2 airlines that operate flights from Istanbul to Heathrow. 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 21 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£142Average£182FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Turkish AirlinesCheapest£186Average£270FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines 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 Istanbul to Heathrow?

When you search for this flight from Istanbul 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 Istanbul to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Istanbul 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 Istanbul to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Istanbul to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Istanbul to Heathrow become cheaper?

Of course! You can now track prices for flights from Istanbul to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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