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Cheap flights from Istanbul 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 14/3. Fares are subject to change and may not be available on all flights or dates of travel.
IST — LHR
13 Dec — 20 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 39 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 13 November 2025.

Sat 29/1118:40IST - LHR
Nonstop4h 15mBritish Airways
Fri 5/1207:00LHR - IST
Nonstop3h 55mBritish Airways
Deal found 12/11£148
Sat 29/1118:40IST - LHR
Nonstop4h 15mBritish Airways
Sat 6/1217:40LHR - IST
Nonstop3h 55mBritish Airways
Deal found 12/11£151
Mon 8/1218:40IST - LHR
Nonstop4h 15mBritish Airways
Fri 16/118:15LHR - IST
Nonstop3h 55mBritish Airways
Deal found 12/11£154
Wed 17/1214:45IST - LHR
Nonstop4h 25mBritish Airways
Wed 31/1218:05LHR - IST
Nonstop3h 55mBritish Airways
Deal found 11/11£155
Thu 18/1217:55IST - LHR
1 stop5h 55mKLM
Sun 4/106:30LHR - IST
1 stop7h 25mKLM
Deal found 12/11£156
Sat 29/1118:40IST - LHR
Nonstop4h 15mBritish Airways
Mon 8/1217:55LHR - IST
Nonstop3h 55mBritish Airways
Deal found 13/11£157
Wed 17/1217:55IST - LHR
1 stop5h 55mKLM
Wed 31/1206:30LHR - IST
1 stop7h 25mKLM
Deal found 11/11£158
Sun 7/1221:20IST - LHR
Nonstop4h 15mBritish Airways
Mon 12/107:25LHR - IST
Nonstop3h 55mBritish Airways
Deal found 12/11£160
Tue 9/1217:55IST - LHR
1 stop5h 55mKLM
Wed 14/106:30LHR - IST
1 stop7h 25mKLM
Deal found 12/11£161
Sun 21/1218:40IST - LHR
Nonstop4h 15mBritish Airways
Tue 30/1217:10LHR - IST
Nonstop3h 55mBritish Airways
Deal found 10/11£161
Fri 28/1108:10IST - LHR
Nonstop4h 30mBritish Airways
Sun 30/1118:15LHR - IST
Nonstop3h 55mBritish Airways
Deal found 12/11£162
Mon 8/1204:50IST - LHR
1 stop6h 05mMultiple Airlines
Tue 13/120:25LHR - IST
1 stop17h 30mMultiple Airlines
Deal found 12/11£163

Cheap flight deals from Istanbul to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Istanbul (TR5) 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 13 November 2025.

Round-trip from

£148

One-way from

£54

Popular in

August

Cheapest in

March

Average price

£208
KLM
  • KLM
  • 14/2-20/2
  • 1 total stop
  • 11h 50m total
  • Istanbul to London
Search Deals
British Airways
  • British Airways
  • 14/3
  • Nonstop
  • 4h 25m total
  • Istanbul to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 13 November 2025.
Use the filters below to find and compare flights from Istanbul to London Heathrow Airport that are best for you.

Fly from

Istanbul

Fly to

Heathrow

Route

Depart

Return

Price

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 12/2

18:40-19:55

Nonstop4h 15m

London Heathrow

Fri 20/2

07:00-13:55

Nonstop3h 55m

£154

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sat 14/2

14:55-16:20

Nonstop4h 25m

London Heathrow

Sat 21/2

10:30-17:25

Nonstop3h 55m

£154

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sat 14/2

18:40-19:55

Nonstop4h 15m

London Heathrow

Wed 18/2

18:05-01:00

Nonstop3h 55m

£154

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 12/2

18:40-19:55

Nonstop4h 15m

London Heathrow

Wed 18/2

18:05-01:00

Nonstop3h 55m

£154

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Sun 15/2

18:40-19:55

Nonstop4h 15m

London Heathrow

Sun 22/2

18:15-01:10

Nonstop3h 55m

£154

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Mon 16/2

18:40-19:55

Nonstop4h 15m

London Heathrow

Sun 22/2

18:15-01:10

Nonstop3h 55m

£154

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 18/12

14:35-16:00

Nonstop4h 25m

London Heathrow

Tue 30/12

17:10-00:05

Nonstop3h 55m

£160

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 18/12

14:35-16:00

Nonstop4h 25m

London Heathrow

Wed 31/12

18:05-01:00

Nonstop3h 55m

£160

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 24/12

17:55-20:50

1 stop5h 55m

London Heathrow

Sat 3/1

06:30-16:55

1 stop7h 25m

£161

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Fri 13/2

17:55-20:50

1 stop5h 55m

London Heathrow

Thu 19/2

17:35-03:50

1 stop7h 15m

£166

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 39 results
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2
3
4

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 to London Heathrow Airport

How far ahead should I book a flight from Istanbul 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 7 November 2025.

The price you pay for your flight from Istanbul to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 39 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Istanbul to London Heathrow Airport (average of £69). Flying from Istanbul to London Heathrow Airport in April is currently the most expensive (average of £179). 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 13 November 2025.

It’s optimal to fly from Istanbul to London Heathrow Airport in the evening. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight at midday.

What is the cheapest day to fly from Istanbul 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 to London Heathrow Airport flight should consider departing on Thursday 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.

Weekly flight availability from Istanbul to London Heathrow Airport

Explore weekly flight availability from Istanbul to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 November 2025.

The most flights from TR5 to LHR are scheduled on a Monday (41 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (26 on average).

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 13 November 2025.
Read reviews from past customers who have flown with Turkish Airlines and British Airways from Istanbul 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
4,043 reviews
Check prices

Overall

7.3

Entertainment

7.4

Food

7.4

Comfort

7.3

Crew

7.7

Boarding

7.3

Reviews

1 / 20
4.0
Okay

Leslie,Feb 2025

IST - LAX

Food and staff were nice but difficulty with WIFI, console sound not working. X-cover insurance a scam. Denying purchase of insurance even with proof. Ridiculous.
Turkish Airlines
7.3
Good
4,043 reviews
Turkish Airlines
7.3
Good
4,043 reviews
Check prices

Overall

7.3

Entertainment

7.4

Food

7.4

Comfort

7.3

Crew

7.7

Boarding

7.3

Reviews

1 / 20
4.0
Okay

Leslie,Feb 2025

IST - LAX

Food and staff were nice but difficulty with WIFI, console sound not working. X-cover insurance a scam. Denying purchase of insurance even with proof. Ridiculous.
British Airways
6.7
Okay
7,517 reviews
Turkish Airlines
7.3
Good
4,043 reviews
Check prices

Overall

7.3

Entertainment

7.4

Food

7.4

Comfort

7.3

Crew

7.7

Boarding

7.3

Reviews

1 / 20
4.0
Okay

Leslie,Feb 2025

IST - LAX

Food and staff were nice but difficulty with WIFI, console sound not working. X-cover insurance a scam. Denying purchase of insurance even with proof. Ridiculous.

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 to London Heathrow Airport?

    Departing from Istanbul to London Heathrow Airport will take you 4h 15m. Airlines will cover a distance of 1545 mi. Generally, flights for this route are direct.

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

    Flying on British Airways is currently your cheapest option to London Heathrow Airport, with prices starting at £142. Another option worth looking into is Turkish Airlines, starting at £185 return. Users have found that British Airways is 37% cheaper than the other options available to this destination.

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

    No one likes to see their flight delayed. When booking a flight from Istanbul to London Heathrow Airport consider choosing British Airways (75%), American Airlines (75%) or RwandAir (62%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £267 for a flight from Istanbul to London Heathrow Airport. The cheapest flight overall is £59 while the most popular route, (Istanbul - London Heathrow) is currently priced at £149.

  • 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 to London Heathrow Airport?

    Currently, March is the cheapest month in which you can book a flight from Istanbul to London Heathrow Airport (average of £69). Flying from Istanbul to London Heathrow Airport in April is currently the most expensive (average of £179). 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

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Alternative routes for Istanbul to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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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 13 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£142Average£181FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Turkish AirlinesCheapest£185Average£269FlexibilityNo 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?

Cheapflights helps you search for flights from Istanbul to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Istanbul to Heathrow?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Istanbul to Heathrow.

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

Yes, we can. To see specific flights from Istanbul to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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