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Cheap flights from London Heathrow Airport to Istanbul Airport from C$ 181

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 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IST
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Istanbul are usually found in November or January, booked 38 days in advance, depart on a Saturday or Sunday and return on a Tuesday

Cheap 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 17 April 2026.

Sat 2/56:30 p.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Sun 3/56:50 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 13/4C$ 295
Fri 8/56:05 a.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Mon 11/57:00 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 14/4C$ 296
Sat 2/56:30 p.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Sat 9/57:55 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 16/4C$ 299
Tue 19/55:10 p.m.
LHR
-
IST
1 stop6h 10m
Multiple Airlines
Wed 3/64:25 a.m.
IST
-
LHR
1 stop8h 05m
Multiple Airlines
Deal found 13/4C$ 300
Wed 6/55:10 p.m.
LHR
-
IST
1 stop6h 10m
Multiple Airlines
Tue 12/54:25 a.m.
IST
-
LHR
1 stop8h 05m
Multiple Airlines
Deal found 15/4C$ 303
Mon 15/65:10 p.m.
LHR
-
IST
1 stop6h 10m
Multiple Airlines
Fri 19/64:25 a.m.
IST
-
LHR
1 stop8h 05m
Multiple Airlines
Deal found 13/4C$ 306
Thu 14/56:15 a.m.
LHR
-
IST
Nonstop3h 55m
British Airways
Wed 20/53:45 p.m.
IST
-
LHR
Nonstop4h 15m
British Airways
Deal found 14/4C$ 307
Fri 15/55:10 p.m.
LHR
-
IST
1 stop6h 10m
KLM
Wed 27/55:20 p.m.
IST
-
LHR
1 stop5h 35m
KLM
Deal found 14/4C$ 309
Mon 4/56:35 p.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Mon 11/57:00 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 16/4C$ 310
Fri 19/66:05 a.m.
LHR
-
IST
Nonstop3h 50m
British Airways
Fri 26/68:30 p.m.
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 14/4C$ 311

Find 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 17 April 2026.

Round-trip from

C$ 295

One-way from

C$ 181

Popular in

July

Cheapest in

November

Average price

C$ 413

Good one-way deal

C$ 420 or less
British Airways
  • British Airways
  • 2/5-3/5
  • Nonstop
  • 7h 50m total
  • London to Istanbul
Search Deals
KLM
  • KLM
  • 4/6
  • 1 total stop
  • 6h 10m total
  • London to Istanbul
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a one-way flight from London Heathrow to Istanbul.
Search Deals

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 17 April 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Istanbul Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Tue 9/6

1:30 p.m.-3:00 p.m.

1 stop23h 30m

Istanbul

Fri 12/6

4:30 a.m.-12:30 p.m.

1 stop10h 00m

C$ 335

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 9/5

6:10 a.m.-12:05 p.m.

Nonstop3h 55m

Istanbul

Sat 9/5

7:55 p.m.-9:55 p.m.

Nonstop4h 00m

C$ 337

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 26/9

6:10 a.m.-12:05 p.m.

Nonstop3h 55m

Istanbul

Sat 10/10

7:55 p.m.-9:55 p.m.

Nonstop4h 00m

C$ 342

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 27/9

7:05 p.m.-12:55 a.m.

Nonstop3h 50m

Istanbul

Mon 12/10

3:35 p.m.-5:45 p.m.

Nonstop4h 10m

C$ 342
Quickest round-trip

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 27/9

7:05 p.m.-12:55 a.m.

Nonstop3h 50m

Istanbul

Sat 10/10

7:55 p.m.-9:55 p.m.

Nonstop4h 00m

C$ 342

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 12/6

6:05 a.m.-11:55 a.m.

Nonstop3h 50m

Istanbul

Mon 15/6

8:15 p.m.-10:15 p.m.

Nonstop4h 00m

C$ 354

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 14/6

1:30 p.m.-3:55 p.m.

1 stop24h 25m

Istanbul

Wed 17/6

4:30 a.m.-12:30 p.m.

1 stop10h 00m

C$ 365

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 2/9

8:55 a.m.-2:50 p.m.

Nonstop3h 55m

Istanbul

Fri 11/9

1:20 p.m.-3:30 p.m.

Nonstop4h 10m

C$ 373

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 26/9

6:30 p.m.-12:20 a.m.

Nonstop3h 50m

Istanbul

Sun 11/10

6:50 p.m.-8:50 p.m.

Nonstop4h 00m

C$ 392

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 1/5

6:50 p.m.-12:40 a.m.

Nonstop3h 50m

Istanbul

Mon 4/5

8:15 a.m.-10:30 a.m.

Nonstop4h 15m

C$ 399

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 22 resultsSorted by cheapest first
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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 10 April 2026.

Booking 38 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Istanbul Airport (average of C$ 333). Flying from London Heathrow Airport to Istanbul Airport in July is currently the most expensive (average of C$ 645). 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 17 April 2026.

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 at noon tend to be the most expensive. A flight in the evening could potentially save you up to 66% on airfare.

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 17 April 2026.
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
4,306 reviews
Check prices

Overall

7.3

Food

7.5

Entertainment

7.5

Crew

7.8

Boarding

7.3

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Scout,Mar 2026

UBN - IST

The boarding process is definitely not as smooth as some Asian airlines. But Turkish Airlines pleasantly surprised me with the quality of food - even vegetarian options - and the staff were so attentive and eager to please. Not the most comfortable seats, but luckily it was not a full flight and the staff were happy for us to spread and be comfortable.
Turkish Airlines
7.3
Good
4,306 reviews
Turkish Airlines
7.3
Good
4,306 reviews
Check prices

Overall

7.3

Food

7.5

Entertainment

7.5

Crew

7.8

Boarding

7.3

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Scout,Mar 2026

UBN - IST

The boarding process is definitely not as smooth as some Asian airlines. But Turkish Airlines pleasantly surprised me with the quality of food - even vegetarian options - and the staff were so attentive and eager to please. Not the most comfortable seats, but luckily it was not a full flight and the staff were happy for us to spread and be comfortable.
British Airways
6.7
Okay
7,889 reviews
Turkish Airlines
7.3
Good
4,306 reviews
Check prices

Overall

7.3

Food

7.5

Entertainment

7.5

Crew

7.8

Boarding

7.3

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Scout,Mar 2026

UBN - IST

The boarding process is definitely not as smooth as some Asian airlines. But Turkish Airlines pleasantly surprised me with the quality of food - even vegetarian options - and the staff were so attentive and eager to please. Not the most comfortable seats, but luckily it was not a full flight and the staff were happy for us to spread and be comfortable.

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. Air Serbia provides one of the quickest options available for as low as C$ 337. The distance from London Heathrow Airport to Istanbul Airport is about 2486 km. This flight may include one or multiple stops.

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

    British Airways, at C$ 250, 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 41% 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 (98%), Avianca (93%), Turkish Airlines( 91%).

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

    Looking at all options, your cheapest flight can be booked for C$ 268. While the most popular route (London Heathrow - Istanbul) can be booked for C$ 705 on average, our data indicates C$ 420 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Istanbul Airport (average of C$ 333). Flying from London Heathrow Airport to Istanbul Airport in July is currently the most expensive (average of C$ 645). 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

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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 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 250AverageC$ 371FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Turkish AirlinesCheapestC$ 314AverageC$ 326FlexibilityNo 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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