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Cheap flights from London Heathrow Airport to Istanbul Airport from ₹ 12,251

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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IST
14 Jun — 21 Jun1
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 86 days in advance, depart on a Friday or Wednesday and return on a Monday

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 15 May 2026.

Tue 1/1206:30
LHR
-
IST
1 stop7h 25m
KLM
Tue 8/1217:55
IST
-
LHR
1 stop18h 05m
KLM
Deal found 13/5₹ 20,673
Sun 8/1106:30
LHR
-
IST
1 stop7h 25m
KLM
Fri 20/1117:55
IST
-
LHR
1 stop16h 45m
KLM
Deal found 11/5₹ 20,865
Sat 28/1107:00
LHR
-
IST
Nonstop3h 55m
British Airways
Sun 6/1221:20
IST
-
LHR
Nonstop4h 15m
British Airways
Deal found 13/5₹ 21,343
Thu 10/1206:40
LHR
-
IST
Nonstop3h 55m
British Airways
Wed 16/1214:45
IST
-
LHR
Nonstop4h 25m
British Airways
Deal found 13/5₹ 21,439
Fri 12/606:05
LHR
-
IST
Nonstop3h 50m
British Airways
Tue 23/619:55
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 14/5₹ 21,535
Sat 20/618:30
LHR
-
IST
Nonstop3h 50m
British Airways
Tue 23/619:55
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 14/5₹ 21,630
Sat 20/618:30
LHR
-
IST
Nonstop3h 50m
British Airways
Wed 24/619:25
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 13/5₹ 21,726
Wed 23/919:15
LHR
-
IST
Nonstop3h 50m
British Airways
Wed 30/919:25
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 10/5₹ 21,822
Fri 2/1018:50
LHR
-
IST
Nonstop3h 50m
British Airways
Tue 6/1014:35
IST
-
LHR
Nonstop4h 10m
British Airways
Deal found 14/5₹ 21,917
Wed 27/506:30
LHR
-
IST
1 stop7h 50m
KLM
Wed 3/606:00
IST
-
LHR
1 stop9h 50m
KLM
Deal found 12/5₹ 22,013
Wed 7/1008:55
LHR
-
IST
Nonstop3h 55m
British Airways
Wed 7/1019:25
IST
-
LHR
Nonstop4h 00m
British Airways
Deal found 14/5₹ 22,109

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 15 May 2026.

Round-trip from

₹ 20,769

One-way from

₹ 12,251

Popular in

July

Cheapest in

November

Average price

₹ 29,096
British Airways
  • British Airways
  • 4/6-9/6
  • Nonstop
  • 8h 00m total
  • London to Istanbul
Search Deals
KLM
  • KLM
  • 8/11
  • 1 total stop
  • 7h 25m total
  • London to Istanbul
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (₹ 695,329 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (₹ 137,721 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 454,620 searches. Data last updated 15 May 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 return flight

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 9/11

17:55-00:50

Nonstop3h 55m

Istanbul

Mon 16/11

15:15-16:40

Nonstop4h 25m

₹ 22,683

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Tue 9/6

17:50-02:05

1 stop6h 15m

Istanbul

Thu 11/6

03:45-08:15

1 stop6h 30m

₹ 24,884

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 4/11

13:20-04:30

1 stop12h 10m

Istanbul

Mon 9/11

05:30-12:20

1 stop9h 50m

₹ 24,884

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 24/6

17:50-02:05

1 stop6h 15m

Istanbul

Fri 26/6

03:45-15:40

1 stop13h 55m

₹ 24,884

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 3/10

19:55-15:00

1 stop17h 05m

Istanbul

Sun 11/10

04:30-12:30

1 stop10h 00m

₹ 24,980

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Thu 25/6

16:25-02:05

1 stop7h 40m

Istanbul

Mon 29/6

03:45-08:15

1 stop6h 30m

₹ 25,650

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 12/9

19:55-15:00

1 stop17h 05m

Istanbul

Sat 19/9

04:30-19:05

1 stop16h 35m

₹ 26,894
Fastest return journey

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Thu 1/10

18:35-00:25

Nonstop3h 50m

Istanbul

Sun 11/10

18:50-20:50

Nonstop4h 00m

₹ 27,277

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 3/6

19:15-01:05

Nonstop3h 50m

Istanbul

Sun 7/6

18:50-20:50

Nonstop4h 00m

₹ 29,000

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 8/11

06:30-16:55

1 stop7h 25m

Istanbul

Sun 15/11

17:55-20:50

1 stop5h 55m

₹ 29,670

Flights are sorted by cheapest return flights first.

Deals found on 14/5

Showing 1-10 of 22 resultsSorted by cheapest first
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2
3

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 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 London Heathrow Airport to Istanbul Airport

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

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Istanbul Airport, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 ₹ 23,449). Flying from London Heathrow Airport to Istanbul Airport in July is currently the most expensive (average of ₹ 45,749). 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 15 May 2026.

It’s typically best to fly out from London Heathrow Airport to Istanbul Airport in the afternoon. Doing so could potentially save you 54% on the flight price compared to flying in the evening, which is usually more expensive.

How much does it cost for a return flight 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 15 May 2026.
Check out reviews from past customers who have flown with Turkish Airlines and British Airways from London Heathrow Airport to Istanbul Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.4
Good
4,366 reviews
Check prices

Entertainment

7.5

Overall

7.4

Comfort

7.3

Boarding

7.3

Food

7.5

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DEN - IST

The seat assignments that were booked well in advance and paid extra for were all changed and incorrect. This includes the bassinet we requested at time of booking being unavailable and the row we selected not being in the bassinet aisle.
Turkish Airlines
7.4
Good
4,366 reviews
Turkish Airlines
7.4
Good
4,366 reviews
Check prices

Entertainment

7.5

Overall

7.4

Comfort

7.3

Boarding

7.3

Food

7.5

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DEN - IST

The seat assignments that were booked well in advance and paid extra for were all changed and incorrect. This includes the bassinet we requested at time of booking being unavailable and the row we selected not being in the bassinet aisle.
British Airways
6.7
Okay
7,980 reviews
Turkish Airlines
7.4
Good
4,366 reviews
Check prices

Entertainment

7.5

Overall

7.4

Comfort

7.3

Boarding

7.3

Food

7.5

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DEN - IST

The seat assignments that were booked well in advance and paid extra for were all changed and incorrect. This includes the bassinet we requested at time of booking being unavailable and the row we selected not being in the bassinet aisle.

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?

    There are many flights that can get you from London Heathrow Airport to Istanbul Airport in 3h 55m. Fly via KLM, British Airways, or Lufthansa to get the fastest option. The distance between London Heathrow Airport and Istanbul Airport is about 2486 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at ₹ 19,998, British Airways will fly you from London Heathrow Airport to Istanbul Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Turkish Airlines for as low as ₹ 25,481. British Airways is priced at 33% lower than the current average price of a flight leaving 3 months from now.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to Istanbul Airport on time: Icelandair (97%), Avianca (93%), American Airlines (92%).

  • 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 holiday 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 ₹ 23,449). Flying from London Heathrow Airport to Istanbul Airport in July is currently the most expensive (average of ₹ 45,749). 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

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 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 454,620 searches. Data last updated 15 May 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest₹ 19,998Average₹ 28,450FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Turkish AirlinesCheapest₹ 25,481Average₹ 30,727FlexibilityNo 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 Heathrow to Istanbul?

Deals for Heathrow to Istanbul flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Istanbul from Heathrow.

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

Yes, we can. To see specific flights from Heathrow to Istanbul 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 Heathrow to Istanbul become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to Istanbul on Cheapflights with our Price Alert feature and get notified when better prices are available.

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