Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Istanbul Airport from C$ 176

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IST
4 May — 11 May1
1 adult

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 Sunday and return on a Friday

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 29 April 2025.

Round-trip from

C$ 277

One-way from

C$ 176

Popular in

August

Cheapest in

January

Average price

C$ 424

Good round-trip deal

C$ 361 or less

Good one-way deal

C$ 243 or less
British Airways
  • British Airways
  • 13/10-17/10
  • Nonstop
  • 7h 50m total
  • London to Istanbul
Search Deals
British Airways
  • British Airways
  • 15/9
  • Nonstop
  • 3h 50m total
  • London to Istanbul
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (C$ 162 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Istanbul.
Search Deals
Price to beat on a one-way flight from London Heathrow to Istanbul.
Search Deals

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 29 April 2025.

Sun 9/116:15 p.m.LHR - IST
Nonstop4h 00mBritish Airways
Sat 15/116:25 p.m.IST - LHR
Nonstop4h 20mBritish Airways
Deal found 28/4C$ 262
Fri 5/126:30 a.m.LHR - IST
1 stop7h 25mMultiple Airlines
Mon 15/125:10 a.m.IST - LHR
1 stop11h 35mMultiple Airlines
Deal found 28/4C$ 292
Fri 16/54:40 p.m.LHR - IST
Nonstop4h 00mTurkish Airlines
Thu 22/58:30 p.m.IST - LHR
Nonstop3h 55mTurkish Airlines
Deal found 28/4C$ 305
Mon 15/99:30 a.m.LHR - IST
1 stop9h 50mLufthansa
Wed 24/95:55 p.m.IST - LHR
1 stop6h 15mLufthansa
Deal found 28/4C$ 324
Mon 12/51:30 p.m.LHR - IST
1 stop12h 00mAir Serbia
Tue 13/54:35 p.m.IST - LHR
1 stop21h 55mAir Serbia
Deal found 28/4C$ 333
Sat 10/58:40 a.m.LHR - IST
1 stop5h 40mKLM
Wed 14/55:05 p.m.IST - LHR
1 stop5h 50mKLM
Deal found 28/4C$ 364
Fri 16/56:15 a.m.LHR - IST
1 stop19h 10mAir France
Thu 22/54:20 a.m.IST - LHR
1 stop8h 10mAir France
Deal found 28/4C$ 391
Sun 1/610:15 p.m.LHR - IST
1 stop9h 35mAegean Airlines
Tue 3/68:50 p.m.IST - LHR
1 stop16h 25mAegean Airlines
Deal found 28/4C$ 438

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 629,999 searches. Data last updated 29 April 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

Mon 13/10

6:35 p.m.-12:25 a.m.

Nonstop3h 50m

Istanbul

Fri 17/10

8:25 p.m.-10:25 p.m.

Nonstop4h 00m

C$ 277

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 16/5

4:40 p.m.-10:40 p.m.

Nonstop4h 00m

Istanbul

Thu 22/5

8:30 p.m.-10:25 p.m.

Nonstop3h 55m

C$ 305

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 15/9

9:30 a.m.-9:20 p.m.

1 stop9h 50m

Istanbul

Wed 24/9

5:55 p.m.-10:10 p.m.

1 stop6h 15m

C$ 324

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 12/5

1:30 p.m.-3:30 a.m.

1 stop12h 00m

Istanbul

Tue 13/5

4:35 p.m.-12:30 p.m.

1 stop21h 55m

C$ 333

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 19/5

3:20 p.m.-3:25 a.m.

1 stop10h 05m

Istanbul

Fri 23/5

5:05 p.m.-7:40 a.m.

1 stop16h 35m

C$ 335

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 10/5

8:40 a.m.-4:20 p.m.

1 stop5h 40m

Istanbul

Wed 14/5

5:05 p.m.-8:55 p.m.

1 stop5h 50m

C$ 364

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 16/5

6:15 a.m.-3:25 a.m.

1 stop19h 10m

Istanbul

Thu 22/5

4:20 a.m.-10:30 a.m.

1 stop8h 10m

C$ 391

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 1/6

10:15 p.m.-9:50 a.m.

1 stop9h 35m

Istanbul

Tue 3/6

8:50 p.m.-11:15 a.m.

1 stop16h 25m

C$ 438

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 15/9

6:35 p.m.-12:25 a.m.

Nonstop3h 50m

C$ 176

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 14/9

7:25 p.m.-3:50 p.m.

1 stop18h 25m

C$ 182

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 16 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 25 April 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Istanbul Airport (average of C$ 1,006). Flying from London Heathrow Airport to Istanbul Airport in July is currently the most expensive (average of C$ 1,378). 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 29 April 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Istanbul Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 68% on airfare.

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 30 March 2025.

Travelers seeking maximum savings on their London Heathrow Airport to Istanbul Airport flight should consider departing on Sunday afternoons 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 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 29 April 2025.

The most flights from LHR to IST are scheduled on a Monday (50 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (40 on average).

Rainfall in Istanbul by month

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

In terms of precipitation, rainfall in Istanbul Airport ranges from 10.0 - 100.0 mm per month. December is typically the wettest month, when rainfall can reach 100.0 mm. July is typically the driest time to visit Istanbul Airport when rainfall is around 10.0 mm.

Temperature in Istanbul by month

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

If weather is an important factor for your trip to Istanbul 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 29 April 2025.
See what other customers who have flown with Aegean Airlines, KLM and LOT from London to Istanbul have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Crew

8.6

Comfort

7.8

Overall

8.1

Entertainment

6.9

Food

7.3

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
739 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Crew

8.6

Comfort

7.8

Overall

8.1

Entertainment

6.9

Food

7.3

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
1,333 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Crew

8.6

Comfort

7.8

Overall

8.1

Entertainment

6.9

Food

7.3

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
1,069 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Crew

8.6

Comfort

7.8

Overall

8.1

Entertainment

6.9

Food

7.3

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
7.4
Good
1,444 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Crew

8.6

Comfort

7.8

Overall

8.1

Entertainment

6.9

Food

7.3

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
3,785 reviews
Aegean Airlines
8.1
Very good
739 reviews
Check prices

Boarding

7.8

Crew

8.6

Comfort

7.8

Overall

8.1

Entertainment

6.9

Food

7.3

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?

    British Airways, at C$ 277, was found to be the cheapest airline from London Heathrow Airport to Istanbul Airport.Alternate airlines to your destination round-trip include Turkish Airlines and Lufthansa. These flights start at 31% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as C$ 176 on British Airways. Other airlines that offer cheap prices include Air Serbia from C$ 182 and Aegean Airlines from C$ 205 one-way.

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

    Before booking your flight to Istanbul Airport from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Icelandair (90%), British Airways (85%), American Airlines( 85%).

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

    Looking at all options, your cheapest flight can be booked for C$ 195. While the most popular route (London Heathrow - Istanbul) can be booked for C$ 705 on average our data indicates C$ 727 when flying from London Heathrow Airport to Istanbul Airport.

  • 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Istanbul Airport (average of C$ 1,006). Flying from London Heathrow Airport to Istanbul Airport in July is currently the most expensive (average of C$ 1,378). 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.

Alternative routes for Heathrow to Istanbul

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Istanbul flights

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 629,999 searches. Data last updated 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapestC$ 246AverageC$ 316FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Turkish AirlinesCheapestC$ 280AverageC$ 359FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

When you search for this flight from Heathrow to Istanbul, 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 Heathrow to Istanbul?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Istanbul for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Istanbul from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Heathrow to Istanbul flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.