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Cheap flights from London Heathrow Airport to Istanbul from $125

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Istanbul departing on 9/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London Heathrow Airport to Istanbul

Cheap round-trip flights

British Airways Logo
5:55 pm - 12:50 amLHR-IST
3h 55mnonstop
British Airways Logo
7:35 am - 9:05 amIST-LHR
4h 30mnonstop
$204British Airways
Find Deal
Mon, Nov 3 - Tue, Nov 25
British Airways Logo
6:15 pm - 1:10 amLHR-IST
3h 55mnonstop
British Airways Logo
6:40 pm - 7:55 pmIST-LHR
4h 15mnonstop
$205British Airways
Find Deal
Sun, Nov 16 - Tue, Nov 25
British Airways Logo
5:55 pm - 12:50 amLHR-IST
3h 55mnonstop
British Airways Logo
7:35 am - 9:05 amIST-LHR
4h 30mnonstop
$206British Airways
Find Deal
Mon, Nov 24 - Tue, Dec 2
British Airways Logo
10:30 am - 5:25 pmLHR-IST
3h 55mnonstop
British Airways Logo
6:40 pm - 7:55 pmIST-LHR
4h 15mnonstop
$207British Airways
Find Deal
Sat, Dec 6 - Sat, Dec 20
Logo
8:25 pm - 4:55 pmLHR-IST
17h 30m1 stop
Logo
4:50 am - 1:45 pmIST-LHR
11h 55m1 stop
$213
Find Deal
Fri, Dec 5 - Sun, Dec 14
Logo
2:45 pm - 1:20 amLHR-IST
8h 35m1 stop
Logo
4:20 am - 1:45 pmIST-LHR
11h 25m1 stop
$214
Find Deal
Mon, Sep 1 - Sat, Sep 20
Turkish Airlines Logo
8:00 pm - 2:55 amLHR-IST
3h 55mnonstop
Turkish Airlines Logo
3:45 pm - 4:55 pmIST-LHR
4h 10mnonstop
$216Turkish Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 18
KLM Logo
5:10 pm - 1:20 amLHR-IST
6h 10m1 stop
KLM Logo
6:10 am - 10:45 amIST-LHR
6h 35m1 stop
$219KLM
Find Deal
Mon, Sep 15 - Mon, Sep 22
KLM Logo
5:10 pm - 1:20 amLHR-IST
6h 10m1 stop
KLM Logo
6:10 am - 10:45 amIST-LHR
6h 35m1 stop
$220KLM
Find Deal
Wed, Sep 10 - Wed, Oct 1
Turkish Airlines Logo
4:40 pm - 11:35 pmLHR-IST
3h 55mnonstop
Turkish Airlines Logo
3:10 pm - 4:10 pmIST-LHR
4h 00mnonstop
$248Turkish Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 11

KLM flights from London Heathrow Airport to Istanbul Airport

Our best KLM deals on London Heathrow Airport to Istanbul Airport flight tickets
KLM
Sep 15
LHR5:10 pmLondon Heathrow
6h 10m
1 stop
IST1:20 amIstanbul
Sep 22
IST6:10 amIstanbul
6h 35m
1 stop
LHR10:45 amLondon Heathrow
$219
Find similar
KLM
Sep 10
LHR5:10 pmLondon Heathrow
6h 10m
1 stop
IST1:20 amIstanbul
Oct 1
IST6:10 amIstanbul
6h 35m
1 stop
LHR10:45 amLondon Heathrow
$220
Find similar
KLM
Aug 29
LHR5:10 pmLondon Heathrow
6h 10m
1 stop
IST1:20 amIstanbul
Sep 19
IST6:10 amIstanbul
6h 35m
1 stop
LHR10:45 amLondon Heathrow
$223
Find similar

British Airways flights from London Heathrow Airport to Istanbul Airport

Our best British Airways deals on London Heathrow Airport to Istanbul Airport flight tickets
British Airways
Nov 3
LHR5:55 pmLondon Heathrow
3h 55m
IST12:50 amIstanbul
Nov 25
IST7:35 amIstanbul
4h 30m
LHR9:05 amLondon Heathrow
$204
Find similar
British Airways
Nov 16
LHR6:15 pmLondon Heathrow
3h 55m
IST1:10 amIstanbul
Nov 25
IST6:40 pmIstanbul
4h 15m
LHR7:55 pmLondon Heathrow
$205
Find similar
British Airways
Nov 24
LHR5:55 pmLondon Heathrow
3h 55m
IST12:50 amIstanbul
Dec 2
IST7:35 amIstanbul
4h 30m
LHR9:05 amLondon Heathrow
$206
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Istanbul Airport 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, momondo users made 832,500 searches. Data last updated August 1, 2025.
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

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 11/3

5:55 pm-12:50 am

Nonstop3h 55m

Istanbul

Tue 11/25

7:35 am-9:05 am

Nonstop4h 30m

$204

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sun 11/16

6:15 pm-1:10 am

Nonstop3h 55m

Istanbul

Tue 11/25

6:40 pm-7:55 pm

Nonstop4h 15m

$205

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 11/24

5:55 pm-12:50 am

Nonstop3h 55m

Istanbul

Tue 12/2

7:35 am-9:05 am

Nonstop4h 30m

$206

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 12/6

10:30 am-5:25 pm

Nonstop3h 55m

Istanbul

Sat 12/20

6:40 pm-7:55 pm

Nonstop4h 15m

$207

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Fri 12/5

8:25 pm-4:55 pm

1 stop17h 30m

Istanbul

Sun 12/14

4:50 am-1:45 pm

1 stop11h 55m

$213

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 9/1

2:45 pm-1:20 am

1 stop8h 35m

Istanbul

Sat 9/20

4:20 am-1:45 pm

1 stop11h 25m

$214

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Tue 11/4

8:00 pm-2:55 am

Nonstop3h 55m

Istanbul

Tue 11/18

3:45 pm-4:55 pm

Nonstop4h 10m

$216

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Mon 9/15

5:10 pm-1:20 am

1 stop6h 10m

Istanbul

Mon 9/22

6:10 am-10:45 am

1 stop6h 35m

$219

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Wed 9/10

5:10 pm-1:20 am

1 stop6h 10m

Istanbul

Wed 10/1

6:10 am-10:45 am

1 stop6h 35m

$220

LondonIstanbul

LHR - IST

LHRIST

London Heathrow

Sat 11/1

4:40 pm-11:35 pm

Nonstop3h 55m

Istanbul

Tue 11/11

3:10 pm-4:10 pm

Nonstop4h 00m

$248

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Istanbul from

How to get the cheapest flight ticket from London Heathrow Airport to Istanbul Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Istanbul Airport?

In general, January is the cheapest month to fly from London Heathrow Airport to Istanbul Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $206. If you don’t want to visit Istanbul Airport in January, then you should wait until March to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $214.

What is the cheapest day to depart on your flight to Istanbul Airport?

Our data shows that Monday is the least expensive day to fly to Istanbul Airport. Tickets to fly out on this day can be as low as $353. On the other hand, Saturday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $679.

What is the cheapest time of day to depart on your flight to Istanbul Airport?

In the evening is the cheapest time of day to fly from London Heathrow Airport to Istanbul Airport when you can find flight prices for as low as $330. Flying to Istanbul Airport in the evening is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $498.

What is the cheapest London Heathrow to Istanbul flight route?

Fly from London Heathrow to Istanbul for the best London Heathrow - Istanbul flight prices

How far in advance should I book a flight to Istanbul Airport?

You are more likely to see cheaper flights to Istanbul Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul Airport for around $296 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul Airport from London Heathrow Airport for as low as $273 on momondo.

What cabin class options are available on London Heathrow to Istanbul flights?

There are 3 cabin classes available to choose from on London Heathrow to Istanbul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London Heathrow Airport to Istanbul Airport flight prices changed over time?

As of August 2025, prices for London Heathrow Airport to Istanbul Airport flights are approximately 47% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Istanbul Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Istanbul Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Heathrow Airport to Istanbul Airport (LHR to IST) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Istanbul Airport

Best Price Found

$125

Fastest flight time

3h 50m

Direct flights

Every day
The best one-way flight to Istanbul Airport from London Heathrow Airport in the past 72 hours is $125. The best round-trip flight deal from London Heathrow Airport to Istanbul Airport found on momondo in the last 72 hours is $204.
The fastest flight from London Heathrow Airport to Istanbul Airport takes 3h 50m
Direct flights go from London Heathrow Airport to Istanbul Airport every day.
Search flight deals

  • How far is London Heathrow to Istanbul by plane?

    London Heathrow and Istanbul are 1544.7 mi apart from one another. By plane, this route typically takes 3h 50m.

  • When did momondo last update prices for flights from London Heathrow Airport to Istanbul Airport?

    Prices for flights from London Heathrow Airport to Istanbul Airport are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Istanbul Airport?

  • How old do you have to be to fly from London Heathrow Airport to Istanbul Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Istanbul Airport.

  • What documentation or ID do you need to fly to Istanbul Airport?

    The required travel and health documents for your Istanbul Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Istanbul Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Istanbul Airport?

  • What is the most popular airline from London Heathrow Airport to Istanbul Airport?

Best airlines flying from London Heathrow Airport to Istanbul Airport

Compare and see reviews for airlines that fly from London Heathrow Airport to Istanbul Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $176Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
LOTPriceFrom $186Free CancellationRating
7.6
1,105 reviews
Search LOT flights
Turkish AirlinesPriceFrom $207Free CancellationRating
7.3
3,933 reviews
Search Turkish Airlines flights

  • Turkish Airlines Flights From London Heathrow Airport to Istanbul Airport

    Turkish Airlines flight deals from London Heathrow Airport to Istanbul Airport start from $207 round-trip. Over the 33 Turkish Airlines flights for this route in a normal week, average airfare is usually $293 round-trip - but some users have found much cheaper deals with momondo.

  • British Airways Flights From London Heathrow Airport to Istanbul Airport

    The best British Airways deal for London Heathrow Airport to Istanbul Airport flight tickets found on momondo in the last 72 hours was $176, round-trip. It should be noted that an average British Airways flight deal for this route in this time was higher, at $276 round-trip. British Airways operates 5 flights out of London Heathrow Airport into Istanbul Airport in an average week, so prices vary by time and availability. 7,222 British Airways reviews by users on momondo have scored the airline at 6.6/10.

Traveling to a place near Istanbul?

Book flights to Istanbul if you plan to visit one of these locations
Yalova

Why use momondo?

Why should I use momondo to find a flight deal from London to Istanbul?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Istanbul for you.

Can I find flights from London to Istanbul with flexible booking policies on momondo?

Yes. All flights to Istanbul from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Istanbul?

Once all potential London to Istanbul flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Istanbul right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Istanbul now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Istanbul and let you know when they change.

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