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Cheap flights from Istanbul Airport to London Heathrow Airport from £54

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
IST — LHR
22 May — 29 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Istanbul to London Heathrow are usually found in February or January, booked 39 days in advance, depart on a Monday or Friday and return on a Sunday

Cheap flight deals from Istanbul to Heathrow

Enter your travel dates to find the best prices.

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 22 April 2026.

Wed 10/608:15
IST
-
LHR
Nonstop4h 15m
British Airways
Mon 22/608:35
LHR
-
IST
Nonstop3h 55m
British Airways
Deal found 21/4£146
Thu 4/620:05
IST
-
LHR
Nonstop4h 00m
British Airways
Thu 11/606:15
LHR
-
IST
Nonstop3h 55m
British Airways
Deal found 20/4£158
Sat 9/519:55
IST
-
LHR
Nonstop4h 00m
British Airways
Sat 16/518:30
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 21/4£159
Thu 4/620:05
IST
-
LHR
Nonstop4h 00m
Multiple Airlines
Tue 23/608:40
LHR
-
IST
1 stop14h 40m
Multiple Airlines
Deal found 19/4£161
Thu 4/620:05
IST
-
LHR
Nonstop4h 00m
Multiple Airlines
Thu 11/609:55
LHR
-
IST
1 stop13h 25m
Multiple Airlines
Deal found 20/4£161
Thu 4/620:05
IST
-
LHR
Nonstop4h 00m
British Airways
Wed 10/619:15
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 18/4£162
Wed 3/615:45
IST
-
LHR
Nonstop4h 15m
British Airways
Wed 10/619:15
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 19/4£163
Tue 12/504:25
IST
-
LHR
1 stop11h 20m
Multiple Airlines
Mon 18/511:45
LHR
-
IST
1 stop11h 35m
Multiple Airlines
Deal found 19/4£164
Thu 4/606:00
IST
-
LHR
1 stop6h 45m
KLM
Mon 8/617:10
LHR
-
IST
1 stop6h 10m
KLM
Deal found 17/4£165
Wed 3/615:45
IST
-
LHR
Nonstop4h 15m
British Airways
Sat 13/618:30
LHR
-
IST
Nonstop3h 50m
British Airways
Deal found 21/4£166

Find 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 22 April 2026.

Round-trip from

£146

One-way from

£54

Popular in

August

Cheapest in

February

Average price

£232

Good round-trip deal

£176 or less

Good one-way deal

£106 or less
British Airways
  • British Airways
  • 10/6-22/6
  • Nonstop
  • 8h 10m total
  • Istanbul to London
Search Deals
British Airways
  • British Airways
  • 11/5
  • Nonstop
  • 4h 00m total
  • Istanbul to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£28 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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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 22 April 2026.
Use the filters below to find and compare flights from Istanbul Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 7/5

06:00-13:50

1 stop9h 50m

London Heathrow

Thu 4/6

17:10-01:20

1 stop6h 10m

£167

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Mon 14/9

15:35-17:45

Nonstop4h 10m

London Heathrow

Sun 20/9

11:40-17:45

Nonstop4h 05m

£180
Fastest return journey

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Fri 3/7

20:30-22:30

Nonstop4h 00m

London Heathrow

Thu 9/7

18:35-00:25

Nonstop3h 50m

£184

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 30/7

06:00-10:45

1 stop6h 45m

London Heathrow

Fri 7/8

17:10-01:20

1 stop6h 10m

£198

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Mon 22/6

13:55-22:10

1 stop10h 15m

London Heathrow

Sat 27/6

17:50-02:05

1 stop6h 15m

£204

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 9/7

20:05-22:05

Nonstop4h 00m

London Heathrow

Wed 15/7

19:15-01:05

Nonstop3h 50m

£210

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Fri 19/6

03:45-08:15

1 stop6h 30m

London Heathrow

Sun 28/6

08:30-21:15

1 stop10h 45m

£212

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 30/7

13:10-15:20

Nonstop4h 10m

London Heathrow

Fri 7/8

18:50-00:40

Nonstop3h 50m

£217

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Fri 19/6

15:45-12:30

1 stop22h 45m

London Heathrow

Sun 21/6

19:25-15:55

1 stop18h 30m

£224

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 12/8

19:25-21:25

Nonstop4h 00m

London Heathrow

Wed 26/8

12:20-18:25

Nonstop4h 05m

£228

Flights are sorted by cheapest return flights first.

Deals found on 20/4

Showing 1-10 of 23 resultsSorted by cheapest first
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2
3

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 17 April 2026.

Booking 39 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, February is the cheapest month in which you can book a flight from Istanbul Airport to London Heathrow Airport (average of £192). Flying from Istanbul Airport to London Heathrow Airport in August is currently the most expensive (average of £281). 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 22 April 2026.

It’s optimal to fly from Istanbul Airport to London Heathrow Airport in the evening. By choosing this option you can save up to 51% 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 18 April 2026.

Travellers seeking maximum savings on their Istanbul Airport to London Heathrow Airport flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday 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 22 April 2026.
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
7.4
Good
4,321 reviews
Check prices

Boarding

7.3

Overall

7.4

Crew

7.8

Food

7.5

Comfort

7.3

Entertainment

7.5

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
7.4
Good
4,321 reviews
Turkish Airlines
7.4
Good
4,321 reviews
Check prices

Boarding

7.3

Overall

7.4

Crew

7.8

Food

7.5

Comfort

7.3

Entertainment

7.5

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
7,905 reviews
Turkish Airlines
7.4
Good
4,321 reviews
Check prices

Boarding

7.3

Overall

7.4

Crew

7.8

Food

7.5

Comfort

7.3

Entertainment

7.5

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 £180, KLM can have you in London Heathrow Airport from Istanbul Airport in 4h 10m. Istanbul Airport and London Heathrow Airport are separated by a distance of 1545 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 £149 on this airline. An additional option worth looking into is Turkish Airlines, starting at £196. British Airways is 34% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Istanbul Airport to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as £62 on British Airways. Other airlines that offer cheap prices include KLM from £75 and Air Serbia from £83 one-way.

  • 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 American Airlines (98%), British Airways (93%) and Turkish Airlines (87%).

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

    The cheapest flight price from Istanbul Airport to London Heathrow Airport is £65. On average you can expect to pay £349. The most popular route, (Istanbul - London Heathrow), can usually be booked for £161.

  • 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, February is the cheapest month in which you can book a flight from Istanbul Airport to London Heathrow Airport (average of £192). Flying from Istanbul Airport to London Heathrow Airport in August is currently the most expensive (average of £281). 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
Wembley
Croydon
Hounslow
Northampton
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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 22 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£149Average£195FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Turkish AirlinesCheapest£196Average£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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