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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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
IST — LHR
21 Apr — 28 Apr1
1 adult

Cheapflights Tip: The best prices from Istanbul to London Heathrow are usually found in December or March, booked 84 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

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 16 April 2025.

Round-trip from

£149

One-way from

£55

Popular in

August

Cheapest in

December

Average price

£241

Good round-trip deal

£97 or less

Good one-way deal

£85 or less
British Airways
  • British Airways
  • 14/5-31/5
  • Nonstop
  • 7h 50m total
  • Istanbul to London
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British Airways
  • British Airways
  • 20/5
  • Nonstop
  • 4h 00m total
  • Istanbul to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£39 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in April 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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Find flight deals from Istanbul to Heathrow

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 16 April 2025.

Wed 24/1218:40IST - LHR
Nonstop4h 20mBritish Airways
Fri 2/118:15LHR - IST
Nonstop3h 55mBritish Airways
Deal found 14/4£135
Thu 22/520:30IST - LHR
Nonstop3h 55mTurkish Airlines
Thu 29/516:40LHR - IST
Nonstop4h 00mTurkish Airlines
Deal found 15/4£163
Sat 25/1016:35IST - LHR
1 stop22h 45mAir Serbia
Thu 30/1013:20LHR - IST
1 stop12h 30mAir Serbia
Deal found 14/4£168
Wed 21/504:35IST - LHR
1 stop15h 20mAegean Airlines
Sat 31/516:35LHR - IST
1 stop15h 15mAegean Airlines
Deal found 13/4£190
Thu 22/517:55IST - LHR
1 stop15h 45mLufthansa
Sat 31/506:30LHR - IST
1 stop12h 50mLufthansa
Deal found 13/4£191
Wed 14/514:45IST - LHR
Nonstop3h 55mMultiple Airlines
Mon 19/518:10LHR - IST
1 stop16h 55mMultiple Airlines
Deal found 15/4£199
Thu 5/613:55IST - LHR
1 stop10h 05mLOT
Mon 9/618:10LHR - IST
1 stop16h 55mLOT
Deal found 14/4£219

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 16 April 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

Wed 14/5

17:35-19:35

Nonstop4h 00m

London Heathrow

Sat 31/5

18:30-00:20

Nonstop3h 50m

£149

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 22/5

20:30-22:25

Nonstop3h 55m

London Heathrow

Thu 29/5

16:40-22:40

Nonstop4h 00m

£163

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 11/6

15:40-12:30

1 stop22h 50m

London Heathrow

Sun 15/6

19:25-15:50

1 stop18h 25m

£168

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 21/5

04:35-17:55

1 stop15h 20m

London Heathrow

Sat 31/5

16:35-09:50

1 stop15h 15m

£190

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 22/5

17:55-07:40

1 stop15h 45m

London Heathrow

Sat 31/5

06:30-21:20

1 stop12h 50m

£191

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 14/5

14:45-16:40

Nonstop3h 55m

London Heathrow

Mon 19/5

18:10-13:05

1 stop16h 55m

£199

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 5/6

13:55-22:00

1 stop10h 05m

London Heathrow

Mon 9/6

18:10-13:05

1 stop16h 55m

£219

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Tue 20/5

19:55-21:55

Nonstop4h 00m

£55

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Thu 15/5

14:45-16:40

Nonstop3h 55m

£81

IstanbulLondon

IST - LHR

ISTLHR

Istanbul

Wed 28/5

15:40-12:30

1 stop22h 50m

£88

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 16 results
1
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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 11 April 2025.

Booking 82 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, January is the cheapest month in which you can book a flight from Istanbul Airport to London Heathrow Airport (average of £112). Flying from Istanbul Airport to London Heathrow Airport in August is currently the most expensive (average of £164). 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 16 April 2025.

It’s optimal to fly from Istanbul Airport to London Heathrow Airport in the afternoon. By choosing this option you can save up to 36% 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 30 March 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. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Istanbul Airport 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 16 April 2025.

The most flights from IST to LHR are scheduled on a Tuesday (48 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (27 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 16 April 2025.
Peruse reviews from past customers who have flown with Aegean Airlines, LOT and Air France from Istanbul to London to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very Good
733 reviews
Check prices

Entertainment

6.9

Crew

8.6

Food

7.3

Boarding

7.8

Comfort

7.8

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.1
Very Good
733 reviews
Aegean Airlines
8.1
Very Good
733 reviews
Check prices

Entertainment

6.9

Crew

8.6

Food

7.3

Boarding

7.8

Comfort

7.8

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
LOT
7.6
Good
1,065 reviews
Aegean Airlines
8.1
Very Good
733 reviews
Check prices

Entertainment

6.9

Crew

8.6

Food

7.3

Boarding

7.8

Comfort

7.8

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Air France
7.5
Good
1,435 reviews
Aegean Airlines
8.1
Very Good
733 reviews
Check prices

Entertainment

6.9

Crew

8.6

Food

7.3

Boarding

7.8

Comfort

7.8

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Turkish Airlines
7.3
Good
3,767 reviews
Aegean Airlines
8.1
Very Good
733 reviews
Check prices

Entertainment

6.9

Crew

8.6

Food

7.3

Boarding

7.8

Comfort

7.8

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Lufthansa
6.7
Okay
7,004 reviews
Aegean Airlines
8.1
Very Good
733 reviews
Check prices

Entertainment

6.9

Crew

8.6

Food

7.3

Boarding

7.8

Comfort

7.8

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

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.

  • 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. Additional options worth looking into are Turkish Airlines and Air Serbia, starting at £163 and £168 round-trip. British Airways is 29% 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 £55 on British Airways. Other airlines that offer cheap prices include Turkish Airlines from £81 and Air Serbia from £88 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 RwandAir (89%), IndiGo (88%) and American Airlines (88%).

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

    The cheapest flight price from Istanbul Airport to London Heathrow Airport is £54. On average you can expect to pay £285. The most popular route, (Istanbul - London Heathrow), can usually be booked for £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 Airport to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Istanbul Airport to London Heathrow Airport (average of £112). Flying from Istanbul Airport to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Hounslow
Deal
Milton Keynes
Gatwick
Luton
Slough
Croydon
Eastbourne
Wembley
Northampton
Hayes
Crawley
Southend-on-Sea
Maidstone
Swindon
Ipswich
Southall
Ilford
Winchester
Folkestone

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Istanbul to Heathrow

Discover the top 3 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 16 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Wizz AirCheapest£48Average£125FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
British AirwaysCheapest£121Average£172FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Turkish AirlinesCheapest£184Average£267FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

Fly with Cheapflights

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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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