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Cheap flights from London Heathrow Airport to Istanbul Airport from C$ 174

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IST
26 Nov — 3 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Istanbul are usually found in January or March, booked 52 days in advance, depart on a Monday or Saturday and return on a Tuesday

Cheap flight deals from Heathrow to Istanbul

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

Round-trip from

C$ 287

One-way from

C$ 174

Popular in

July

Cheapest in

January

Average price

C$ 439

Good round-trip deal

C$ 321 or less

Good one-way deal

C$ 277 or less
British Airways
  • British Airways
  • 5/12-9/12
  • Nonstop
  • 8h 20m total
  • London to Istanbul
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Air Serbia
  • Air Serbia
  • 5/4
  • 1 total stop
  • 6h 10m total
  • London to Istanbul
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Highest demand for flights based on searches. 20% potential increase in price (C$ 149 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 26 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from London Heathrow to Istanbul.
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Price to beat on a one-way flight from London Heathrow to Istanbul.
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Find flight deals from Heathrow to Istanbul

Enter your travel dates to find the best prices.

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

Fri 5/127:00 a.m.LHR - IST
Nonstop3h 55mBritish Airways
Tue 9/122:55 p.m.IST - LHR
Nonstop4h 25mBritish Airways
Deal found 27/10C$ 287
Tue 2/126:55 a.m.LHR - IST
Nonstop3h 55mBritish Airways
Mon 15/123:15 p.m.IST - LHR
Nonstop4h 25mBritish Airways
Deal found 25/10C$ 288
Fri 5/126:30 a.m.LHR - IST
1 stop7h 25mMultiple Airlines
Sun 14/124:50 a.m.IST - LHR
1 stop6h 05mMultiple Airlines
Deal found 25/10C$ 294
Wed 10/126:30 a.m.LHR - IST
1 stop7h 25mMultiple Airlines
Tue 16/124:50 a.m.IST - LHR
1 stop6h 10mMultiple Airlines
Deal found 26/10C$ 295
Sat 22/115:40 p.m.LHR - IST
Nonstop3h 55mBritish Airways
Sun 23/119:20 p.m.IST - LHR
Nonstop4h 15mBritish Airways
Deal found 27/10C$ 297
Sat 29/1110:30 a.m.LHR - IST
Nonstop3h 55mBritish Airways
Tue 2/126:40 p.m.IST - LHR
Nonstop4h 15mBritish Airways
Deal found 27/10C$ 298
Thu 13/116:40 a.m.LHR - IST
Nonstop3h 55mBritish Airways
Tue 18/116:40 p.m.IST - LHR
Nonstop4h 15mBritish Airways
Deal found 27/10C$ 299
Wed 5/117:55 p.m.LHR - IST
Nonstop3h 55mTurkish Airlines
Thu 13/111:55 p.m.IST - LHR
Nonstop4h 10mTurkish Airlines
Deal found 25/10C$ 304
Sat 1/115:40 p.m.LHR - IST
Nonstop3h 55mBritish Airways
Mon 1/126:40 p.m.IST - LHR
Nonstop4h 15mBritish Airways
Deal found 25/10C$ 309
Wed 26/116:30 a.m.LHR - IST
1 stop7h 25mKLM
Wed 10/125:55 p.m.IST - LHR
1 stop5h 55mKLM
Deal found 27/10C$ 311
Thu 11/125:30 p.m.LHR - IST
Nonstop3h 55mBritish Airways
Thu 18/126:40 p.m.IST - LHR
Nonstop4h 15mBritish Airways
Deal found 27/10C$ 313
Fri 31/104:35 p.m.LHR - IST
Nonstop3h 50mTurkish Airlines
Sun 23/113:00 p.m.IST - LHR
Nonstop4h 10mTurkish Airlines
Deal found 24/10C$ 315

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Istanbul 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 629,999 searches. Data last updated 27 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Istanbul Airport that are best for you.

Fly from

Heathrow

Fly to

Istanbul

Route

Depart

Return

Price

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 5/12

7:00 a.m.-1:55 p.m.

Nonstop3h 55m

Istanbul

Tue 9/12

2:55 p.m.-4:20 p.m.

Nonstop4h 25m

C$ 287

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 16/1

7:00 a.m.-1:55 p.m.

Nonstop3h 55m

Istanbul

Mon 26/1

6:40 p.m.-7:55 p.m.

Nonstop4h 15m

C$ 288

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Tue 10/3

6:55 a.m.-1:50 p.m.

Nonstop3h 55m

Istanbul

Wed 18/3

7:35 a.m.-9:05 a.m.

Nonstop4h 30m

C$ 295

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Thu 26/2

6:40 a.m.-1:35 p.m.

Nonstop3h 55m

Istanbul

Sun 1/3

8:20 a.m.-9:50 a.m.

Nonstop4h 30m

C$ 298

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 21/11

7:00 a.m.-1:55 p.m.

Nonstop3h 55m

Istanbul

Tue 25/11

6:40 p.m.-7:55 p.m.

Nonstop4h 15m

C$ 298

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Thu 13/11

6:40 a.m.-1:35 p.m.

Nonstop3h 55m

Istanbul

Tue 18/11

6:40 p.m.-7:55 p.m.

Nonstop4h 15m

C$ 299

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 6/2

7:00 a.m.-1:55 p.m.

Nonstop3h 55m

Istanbul

Mon 9/2

8:15 a.m.-9:45 a.m.

Nonstop4h 30m

C$ 299

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Thu 27/11

5:30 p.m.-12:25 a.m.

Nonstop3h 55m

Istanbul

Wed 3/12

2:45 p.m.-4:10 p.m.

Nonstop4h 25m

C$ 299

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 14/1

6:50 a.m.-1:45 p.m.

Nonstop3h 55m

Istanbul

Tue 20/1

2:55 p.m.-4:20 p.m.

Nonstop4h 25m

C$ 302

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 26/11

10:35 p.m.-5:25 a.m.

Nonstop3h 50m

Istanbul

Wed 3/12

3:10 p.m.-4:10 p.m.

Nonstop4h 00m

C$ 304

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 24 results
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Best time to book a flight from Heathrow to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Heathrow with our price prediction graph.
Estimated round-trip 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 Istanbul Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Istanbul. Price data was last updated on 24 October 2025.

Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Istanbul 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 London Heathrow Airport to Istanbul Airport?

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Istanbul Airport (average of C$ 220). Flying from London Heathrow Airport to Istanbul Airport in July is currently the most expensive (average of C$ 334). 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 LHR to IST?

Find hourly flight availability from Heathrow to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 October 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Istanbul Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 57% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Heathrow to Istanbul. Price data was last updated on 26 October 2025.

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

How much does it cost to fly round-trip from London Heathrow Airport to Istanbul Airport?

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. 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 Istanbul. Reviews last updated 27 October 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Istanbul Airport, such as Turkish Airlines and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.3
Good
4,030 reviews
Check prices

Comfort

7.3

Overall

7.3

Entertainment

7.4

Boarding

7.3

Crew

7.7

Food

7.4

Reviews

1 / 20
6.0
Good

Christina,Sep 2025

DTW - IST

Crew was fine but the plane seemed smaller like the seats were very crammed in for an international flight. I’m a small person and it felt suffocating to me.
Turkish Airlines
7.3
Good
4,030 reviews
Turkish Airlines
7.3
Good
4,030 reviews
Check prices

Comfort

7.3

Overall

7.3

Entertainment

7.4

Boarding

7.3

Crew

7.7

Food

7.4

Reviews

1 / 20
6.0
Good

Christina,Sep 2025

DTW - IST

Crew was fine but the plane seemed smaller like the seats were very crammed in for an international flight. I’m a small person and it felt suffocating to me.
British Airways
6.7
Okay
7,476 reviews
Turkish Airlines
7.3
Good
4,030 reviews
Check prices

Comfort

7.3

Overall

7.3

Entertainment

7.4

Boarding

7.3

Crew

7.7

Food

7.4

Reviews

1 / 20
6.0
Good

Christina,Sep 2025

DTW - IST

Crew was fine but the plane seemed smaller like the seats were very crammed in for an international flight. I’m a small person and it felt suffocating to me.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Istanbul. 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 London Heathrow Airport to Istanbul Airport?

    A quick flight from London Heathrow Airport to Istanbul Airport can take about 3h 55m. British Airways provides one of the quickest options available for as low as C$ 287. The distance from London Heathrow Airport to Istanbul Airport is about 2486 km. All flights are typically direct.

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

    British Airways, at C$ 261, was found to be the cheapest airline from London Heathrow Airport to Istanbul Airport. An alternate airline flying to your destination would be Turkish Airlines. These flights start at 37% lower than the current average price 3 months from now.

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

    Before booking your flight to Istanbul Airport from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Icelandair (83%), Avianca (81%), British Airways( 78%).

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

    Looking at all options, your cheapest flight can be booked for C$ 250. While the most popular route (London Heathrow - Istanbul) can be booked for C$ 353 on average, our data indicates C$ 558 when flying from London Heathrow Airport to Istanbul Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Istanbul 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 London Heathrow Airport to Istanbul Airport?

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Istanbul Airport (average of C$ 220). Flying from London Heathrow Airport to Istanbul Airport in July is currently the most expensive (average of C$ 334). 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 Istanbul Airport?

Book flights to Istanbul Airport if you plan to visit one of these locations
Yalova

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Istanbul

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Istanbul flights

Top 2 airlines flying from Heathrow to Istanbul

Discover the top 2 airlines that operate flights from Heathrow to Istanbul. 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 629,999 searches. Data last updated 27 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 261AverageC$ 321FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Turkish AirlinesCheapestC$ 283AverageC$ 334FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

Fly with Cheapflights

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

How does Cheapflights help users find flights from Heathrow to Istanbul?

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Istanbul for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Heathrow to Istanbul with no change fees?

Certainly. Search results for flights to Istanbul from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Heathrow to Istanbul 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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