Cheap Flights From Istanbul To London​

Istanbul to London connects two of Europe’s busiest airports, with several carriers competing across five London airports and both Istanbul terminals. Direct flights take around four hours, with fares starting near $33 one-way outside peak season. Search below to compare current prices across hundreds of airlines.

Flights Calendar From Istanbul To London

London Has Five Airports — The Choice Matters

London is served by five airports, and the cheapest fare is often not the cheapest journey once you add the transfer.

Heathrow (LHR) is the main hub, 24km west of central London. The Piccadilly Line runs directly into the city for a few pounds, or the Elizabeth Line gets you there faster. Turkish Airlines and British Airways both fly here from Istanbul.

Gatwick (LGW) sits 45km south. The Gatwick Express reaches Victoria in about 30 minutes, though it costs considerably more than the Underground from Heathrow.

Stansted (STN) is 64km northeast and the base for most budget carriers. The Stansted Express takes roughly 50 minutes to Liverpool Street. Pegasus flies here from Sabiha Gökçen.

Luton (LTN) is 56km north, with a shuttle to the rail station followed by a train to St Pancras — around 50 minutes in total.

London City (LCY) is the closest to central London and the most convenient, but it handles mainly short-haul European business routes and rarely appears on Istanbul searches.

Before booking, add the transfer cost and time to the fare. A cheap Stansted arrival landing late at night can mean an expensive taxi when the trains have stopped running.

When to Book Flights from Istanbul to London

Book six to eight weeks ahead for the best fares. This route sees heavy business demand alongside leisure traffic, so prices firm up earlier than on purely holiday routes.

January and February are the cheapest months to fly, with November close behind. July and August are the most expensive, combining school holidays with peak tourist season across Europe.

May, September and October offer the best balance — mild weather in London, lower fares, and shorter queues at the major attractions.

Mid-week departures are consistently cheaper than Friday or Sunday. Business traffic peaks on Monday mornings and Thursday evenings, so avoiding those windows helps on this route specifically.

Airlines Flying from Istanbul to London

This route is well served, which keeps fares competitive year-round. Turkish Airlines flies from Istanbul Airport (IST) to Heathrow with full service included, and British Airways operates the same pairing from the London side. Pegasus flies from Sabiha Gökçen (SAW) to Stansted at lower base fares, with baggage and seat selection charged separately.

Check both airport codes before you book. IST and SAW sit on opposite sides of Istanbul, and Heathrow and Stansted are 80km apart at the London end. A fare that looks $40 cheaper can cost more once you have crossed a city twice.

Comparing all carriers in one search typically saves $30–$90 versus booking direct with a single airline.

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London Airport Transfer

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Frequently Asked Questions

How long is the flight from Istanbul to London?

Direct flights take approximately 4 hours. Connecting routes can take 8 hours or more, so check the total duration before booking a cheaper fare.

What is the cheapest month to fly from Istanbul to London?

January and February are typically cheapest, followed by November. July and August are the most expensive, often double the winter rate.

Which airlines fly from Istanbul to London?

Turkish Airlines and British Airways fly to Heathrow, while Pegasus operates from Sabiha Gökçen to Stansted at lower base fares. Comparing all carriers in one search is usually worth $30–$90.

Which London airport should I fly into?

Heathrow for the widest choice and the cheapest transfer into the city. Gatwick if it suits your fare or destination. Stansted and Luton only when the saving clearly beats the extra transfer cost and time.

Do I need a visa to visit London from Türkiye?

Turkish passport holders need a visa to enter the United Kingdom, applied for in advance. Requirements vary by nationality — check with UK Visas and Immigration well before booking, as processing can take several weeks.