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$133+ Cheap flights from Heathrow (LHR) to Istanbul (IST)

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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IST
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Istanbul are usually found in January or March, booked 83 days in advance, depart on a Monday or Thursday and return on a Tuesday

Cheap 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 June 26, 2025.

Round-trip from

$206
(Expedia)

One-way from

$133
(KLM)

Popular in

August

Cheapest in

January

Average price

$276

Good round-trip deal

$410 or less

Good one-way deal

$181 or less
From London Heathrow to Istanbul
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One-way flight from London Heathrow to Istanbul
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Highest demand for flights based on searches. 22% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from London Heathrow to Istanbul.
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Price to beat on a one-way flight from London Heathrow to Istanbul.
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Find flight deals from Heathrow to Istanbul

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 June 26, 2025.

This Expedia deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:05 pmLHR - IST
Nonstop4h 05mBritish Airways
Thu 11/66:25 pmIST - LHR
Nonstop4h 20mBritish Airways
Deal found 6/25$206
This Expedia deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2310:15 pmLHR - IST
1 stop19h 45mMultiple Airlines
Thu 10/27:55 pmIST - LHR
Nonstop4h 00mMultiple Airlines
Deal found 6/26$228
This FlightHub deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:30 pmLHR - IST
Nonstop3h 50mTurkish Airlines
Fri 9/262:05 pmIST - LHR
Nonstop4h 10mTurkish Airlines
Deal found 6/25$261
This Aegean Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aegean Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/310:15 pmLHR - IST
1 stop14h 45mAegean Airlines
Thu 9/113:50 pmIST - LHR
1 stop7h 20mAegean Airlines
Deal found 6/26$282
This Lufthansa deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/201:30 pmLHR - IST
1 stop5h 50mLufthansa
Thu 9/255:55 pmIST - LHR
1 stop6h 15mLufthansa
Deal found 6/26$284
This Air Serbia deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:30 pmLHR - IST
1 stop12h 00mAir Serbia
Tue 9/167:45 amIST - LHR
1 stop6h 45mAir Serbia
Deal found 6/26$298
This KLM deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/258:40 amLHR - IST
1 stop5h 40mKLM
Thu 9/115:05 pmIST - LHR
1 stop5h 50mKLM
Deal found 6/25$301
This Booking.com deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:30 pmLHR - IST
1 stop11h 05mKM Malta Airlines
Tue 10/1410:35 amIST - LHR
1 stop25h 10mKM Malta Airlines
Deal found 6/25$341

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 2,558,603 searches. Data last updated June 26, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Istanbul Airport that are best for you.

Fly from

Heathrow

Fly to

Istanbul

Route

Depart

Return

Price

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 11/5

6:05 pm-1:10 am

Nonstop4h 05m

Istanbul

Thu 11/6

6:25 pm-7:45 pm

Nonstop4h 20m

$206

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Tue 9/23

10:15 pm-8:00 pm

1 stop19h 45m

Istanbul

Thu 10/2

7:55 pm-9:55 pm

Nonstop4h 00m

$228

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 9/19

6:30 pm-12:20 am

Nonstop3h 50m

Istanbul

Fri 9/26

2:05 pm-4:15 pm

Nonstop4h 10m

$261

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 9/1

10:15 pm-9:50 am

1 stop9h 35m

Istanbul

Wed 9/10

8:50 pm-3:30 pm

1 stop20h 40m

$275

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 9/20

1:30 pm-9:20 pm

1 stop5h 50m

Istanbul

Thu 9/25

5:55 pm-10:10 pm

1 stop6h 15m

$284

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 9/13

7:55 pm-2:55 pm

1 stop17h 00m

Istanbul

Mon 9/15

2:20 pm-12:30 pm

1 stop24h 10m

$297

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 8/25

8:40 am-4:20 pm

1 stop5h 40m

Istanbul

Thu 9/11

5:05 pm-8:55 pm

1 stop5h 50m

$301

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 10/6

8:30 pm-9:35 am

1 stop11h 05m

Istanbul

Tue 10/14

10:35 am-9:45 am

1 stop25h 10m

$341

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Thu 8/28

6:30 am-4:20 pm

1 stop7h 50m

$133

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 9/28

7:25 pm-3:50 pm

1 stop18h 25m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/26

Showing 1-10 of 18 results
1
2

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 June 20, 2025.

Booking 83 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 $923). Flying from London Heathrow Airport to Istanbul Airport in June is currently the most expensive (average of $1,365). 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 June 26, 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Istanbul Airport at noon. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from London Heathrow Airport to Istanbul Airport?

Use this chart to determine the cheapest time to fly round-trip from Heathrow to Istanbul. Price data was last updated on June 22, 2025.

Travelers seeking maximum savings on their London Heathrow Airport to Istanbul Airport flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London Heathrow Airport to Istanbul Airport

Explore weekly flight availability from Heathrow to Istanbul. 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 June 26, 2025.

The most flights from LHR to IST are scheduled on a Wednesday (44 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 on average).

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 June 26, 2025.
Read reviews from past customers who have flown Aegean Airlines, KLM, and LOT from London Heathrow Airport to Istanbul 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.
Aegean Airlines
8.2
Very good
761 reviews

Entertainment

7.0

Boarding

7.8

Crew

8.6

Overall

8.2

Comfort

7.8

Food

7.4

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
8.2
Very good
761 reviews
Aegean Airlines
8.2
Very good
761 reviews

Entertainment

7.0

Boarding

7.8

Crew

8.6

Overall

8.2

Comfort

7.8

Food

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
KLM
7.8
Good
1,365 reviews
Aegean Airlines
8.2
Very good
761 reviews

Entertainment

7.0

Boarding

7.8

Crew

8.6

Overall

8.2

Comfort

7.8

Food

7.4

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
1,083 reviews
Aegean Airlines
8.2
Very good
761 reviews

Entertainment

7.0

Boarding

7.8

Crew

8.6

Overall

8.2

Comfort

7.8

Food

7.4

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
1,470 reviews
Aegean Airlines
8.2
Very good
761 reviews

Entertainment

7.0

Boarding

7.8

Crew

8.6

Overall

8.2

Comfort

7.8

Food

7.4

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
3,876 reviews
Aegean Airlines
8.2
Very good
761 reviews

Entertainment

7.0

Boarding

7.8

Crew

8.6

Overall

8.2

Comfort

7.8

Food

7.4

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 Heathrow to Istanbul. 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 London Heathrow Airport to Istanbul Airport round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Istanbul Airport round-trip from $206. Other airlines that can offer you cheap pricing are Turkish Airlines, from $261, and Aegean Airlines, from $275. 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 London Heathrow Airport to Istanbul Airport one-way?

    The cheapest airlines for a one-way flight from London Heathrow Airport to Istanbul Airport are KLM ($133), Air Serbia ($135), and British Airways ($138).

  • 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: LATAM Airlines (85%), British Airways (84%), American Airlines (82%).

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

    Looking for the cheapest flight from London Heathrow Airport to Istanbul Airport? While on average our users pay $978, our data indicates the cheapest price to be $156. The most popular route (London Heathrow - Istanbul), is priced around $240.

  • 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 $923). Flying from London Heathrow Airport to Istanbul Airport in June is currently the most expensive (average of $1,365). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow 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.
London City to Istanbul flights
Gatwick to Istanbul flights
Heathrow to Sabiha Gokcen flights

Top 3 airlines flying from Heathrow to Istanbul

Discover the top 3 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 2,558,603 searches. Data last updated June 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$174Average$277FlexibilityNo cancel feeOn-time70%
LOTCheapest$186Average$218FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$207Average$293FlexibilityNo cancel feeOn-time77%

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