IST or SAW? Which Istanbul Airport to Fly Into (2026)

Istanbul is one of the few cities in the world where "which airport does my flight use?" is a question worth asking before you book — not after you land. Istanbul Airport (IST) and Sabiha Gökçen (SAW) sit on opposite sides of the Bosphorus, roughly 90 km apart by road, and they are entirely separate airports rather than two terminals of the same one. Picking the wrong one, or not realising your outbound flight uses the other, can cost you real time and money.

It's an easy mistake to make: both names start with "Istanbul" on a booking site, both show up when you search flights to the city, and a connecting itinerary booked in two separate tickets can quietly route you through both of them without saying so clearly. Here's how the two actually compare for getting into the city, what they cost, which airlines use each one, and what the airports themselves are like to move through — so you can make an informed choice, or at least know what you're dealing with once your ticket is booked.

Distance and journey time to the city

For the two most touristy bases, Sultanahmet and Taksim, the two airports are surprisingly close to a wash. It's Kadıköy, on the Asian side, where the choice of airport actually changes your journey.

If you're staying on the historic peninsula or around Taksim, the airport you fly into barely matters for journey time. If you're staying on the Asian side — Kadıköy, Üsküdar, Moda — SAW is meaningfully closer: almost half the distance and, in reasonable traffic, close to an hour less in the car than coming from IST.

Both routes rely on Istanbul's bridges and highways at some point, so the ranges above widen considerably around rush hour and during major holidays, when the whole city's traffic backs up regardless of which airport you started from. If your flight lands during a public holiday weekend or the evening rush, add time on top of the upper end of these estimates rather than assuming best case.

Taxi and transfer costs from each airport

A metered taxi from IST to Sultanahmet currently runs about €44 (₺2,468), against €45.7 (₺2,564) from SAW — close enough that the fare shouldn't be the deciding factor for that route. Kadıköy is where the gap actually shows up: €28.6 (₺1,605) from SAW compared with €52.5 (₺2,947) from IST, simply because the drive is so much shorter.

Taksim follows the same pattern as Sultanahmet: €39.7 (₺2,228) from IST versus €44 (₺2,468) from SAW. If you'd rather fix the price before you land, pre-booked private transfers run €42–55 (IST) or €49–56 (SAW) to Sultanahmet, and €44–50 or €46–56 to Taksim.

At both airports you can also order a ride through an app — BiTaksi and Uber both dispatch licensed yellow taxis in Istanbul and show the fare estimate before you confirm, which takes the guesswork out of the rank price at either terminal. It's a reasonable middle ground if you want the flexibility of a metered taxi with a bit more price transparency than hailing one cold.

Which airlines fly where

As a rule of thumb, Turkish Airlines and most full-service and Star Alliance partner flights use Istanbul Airport (IST), which is also a single, unified terminal — there's no separate terminal building to worry about. Sabiha Gökçen (SAW) is the main base for the low-cost carriers Pegasus and AJet, and is noticeably smaller and simpler to find your way around.

It isn't an absolute split — routes shift and some carriers fly seasonal or charter services from either side — so treat this as a general pattern, not a guarantee, and always check which airport code (IST or SAW) is printed on your actual ticket before you arrange transport.

Airport size and getting around

The two airports feel very different to actually walk through, and that's worth weighing alongside price and distance. Istanbul Airport is a very large single terminal building — one of the newest in Europe — with long walks between check-in, security and some gates, plus extensive shopping and dining if you enjoy that kind of layover. Sabiha Gökçen is far more compact: less impressive, but usually faster to move through from kerb to gate, which can matter more than it sounds like on an early morning departure or a tight connection.

Public transport from each airport

From IST, the M11 metro runs to Gayrettepe, connecting into the M2 line for Taksim, or the M2 plus a short T1 tram ride for Sultanahmet. From SAW, the Havabüs coach network runs direct to Taksim, Kadıköy and Yenisahra, and a metro line (M4) also reaches the Kadıköy side of the city, useful if your hotel sits near that line. Both airports post their current bus and metro fares at the terminal and online; with fares having moved more than once recently, it's worth checking on the day rather than trusting an old number.

Connecting between the two airports

Occasionally you'll fly into one and need to leave from the other — an open-jaw itinerary, a missed connection, or simply the cheapest combination of flights. Budget for it: the two airports are about 90 km apart, a taxi between them costs around €78.1 (₺4,385), Havaist also runs a direct coach between the two airports (line HVİST-13, ₺400 one way on the January 2026 tariff), and you should allow two to three hours door to door once you account for Istanbul traffic and the Bosphorus crossing, rather than cutting it close.

If the two legs were booked as separate tickets rather than one connecting itinerary — common with a mix of a full-service and a low-cost carrier — remember you'll fully exit through immigration and customs at the first airport and go through security again at the second, exactly as if they were two different cities. Build that into your schedule rather than treating it as a same-airport transfer.

So which should you choose?

• Staying in Sultanahmet or Taksim, or flying a full-service or international carrier: IST is the natural fit, and there's little practical difference in journey time versus SAW.
• Staying in Kadıköy, Üsküdar or anywhere on the Asian side: SAW is meaningfully closer — worth choosing on price or schedule alone if it's an option.
• Flying Pegasus or AJet: you'll land at SAW regardless, so plan your transport from there rather than assuming IST.
• Very early departure or a tight connection: SAW's smaller size can mean shorter check-in and security queues, though both airports get busy at peak holiday periods.
• Renting a car for onward travel: check which airport your rental desk is actually at before you book the flight — the two are far enough apart that "Istanbul Airport" on the rental voucher and an SAW arrival can turn into an expensive taxi ride before your rental even starts.
• No strong preference either way: book whichever flight suits your schedule or budget — for most central hotels, the ride into town from either airport is close enough that it shouldn't be the deciding factor.

Whichever one you land at, write down the airport code before you fly home, and double-check it against your return ticket. It's the single most common mix-up travellers make with Istanbul's two airports, and the one this guide is really trying to help you avoid.