From Sabiha Gökçen the Asian side comes first: Kadıköy is one metro ride away, and its ferries cross to the old city. Sultanahmet, with the Blue Mosque and Hagia Sophia, is about 100 minutes each way, so it needs a layover of 8.5 hours.
How much of Istanbul can you see on a layover at Sabiha Gökçen?
With 6 hours, take the metro to Kadıköy on the Asian side for about an hour by the water. With 7.5 hours, add the city ferry across the Bosphorus to Eminönü and the Galata Bridge. With 8.5 hours, reach Sultanahmet for the Blue Mosque (from 1:30pm on Fridays), and with 9, Topkapı Palace (closed Tuesdays). Landing at night, sleep by the airport and take the first metro at about 6am.
Every plan below starts and ends at Istanbul Sabiha Gökçen International Airport (SAW). Each time in town allows about an hour from landing to the metro, and returns you to the terminal 90 minutes before take-off, boarding pass in hand. Not checked in yet, or carrying a bag to drop? Add more time.
First make sure you can leave the airport: US, UK, Canadian, Australian and most EU passports need no visa, but Indian passports do. Then check the day. Topkapı Palace is closed on Tuesdays, and the Blue Mosque closes to visitors for prayers every day and opens only from 1:30pm on Fridays. Nobody publishes times for the waits, changes and walks along the way, so those in the plans are our allowances.
6 to 7.5 hours: Kadıköy by metro
About 1 hour in Kadıköy on a 6-hour layover and about 2 hours on a 7-hour one.
Kadıköy by metro
The quickest way into Istanbul from Sabiha Gökçen, for a short layover or for anyone who’d rather sit by the water than queue for a monument. Kadıköy is a busy district on the Asian shore, with ferry piers, a market quarter and cafés, at the far end of the airport’s own metro line.
- M4 metro from the airport to Kadıköy, the end of the line: 52 minutes, no change.
- Walk out to the ferry piers on the waterfront, with the European side across the water.
- Wander the market streets behind them: food shops, cafés and stalls. Give it about an hour.
- M4 back from Kadıköy, leaving 2 hours 50 minutes before your flight.
Opening hours. The streets are open at all hours, but the shops and cafés keep their own, so a very early or very late visit finds many of them shut.
With 7 hours. You’ll have about 2 hours: walk on to the seafront at Moda, south of the market, or sit by the piers and watch the boats.
Late at night. The last M4 from Kadıköy leaves around 11:45pm on our estimate, so aim for a train by 11:30pm. After it, a taxi takes about an hour and costs about ₺2,000.
7.5 to 8.5 hours: across the Bosphorus by ferry
About 2.5 hours in town on a 7.5-hour layover and 3 hours on an 8-hour one, much of it on or beside the water.
Across the Bosphorus by ferry
The cheapest way to see the old city: from the deck of a city ferry, for about the price of a metro ride. It suits a first visit when Sultanahmet itself is out of reach.
- M4 metro to Kadıköy (52 minutes), then walk to the ferry piers.
- City ferry to Eminönü, about 25 minutes. As the boat pulls out, look back for Haydarpaşa, the old railway terminal on the water’s edge; ahead are the domes and minarets of the old city.
- Walk onto the Galata Bridge and along the Eminönü waterfront, where boats sell grilled fish sandwiches. The Spice Bazaar is by the pier if you want to look in. Give it about an hour.
- Ferry back to Kadıköy and the M4, leaving Kadıköy 2 hours 50 minutes before your flight.
Check the time. The last boat from Kadıköy to Eminönü leaves at about 8:30pm, and the last one back at about 9pm. Later boats sail between Kadıköy and Karaköy only, until about 1am. Karaköy is at the other end of the Galata Bridge, about 10 minutes’ walk from Eminönü, so on an evening layover take the boat there and walk onto the bridge from that side.
Tickets. The ferry costs ₺65.21 each way with an İstanbulkart. Buy the card from the machines at the airport station, ₺165, and use it for the metro too.
8.5 to 12 hours: the old city and Topkapı Palace
About 2.5 hours in Sultanahmet on an 8.5-hour layover, 4 hours on a 10-hour one and 6 hours on a 12-hour one.
Sultanahmet’s old city
The Istanbul most visitors picture: the Blue Mosque, the old Hippodrome and Hagia Sophia, a few minutes’ walk apart. It’s the longer trip from Sabiha Gökçen, under the Bosphorus by train, so it needs 8.5 hours.
- M4 metro to Ayrılık Çeşmesi (about 50 minutes), then Marmaray under the Bosphorus to Sirkeci, then the T1 tram two stops to Sultanahmet: about 100 minutes in all with the waits.
- Walk about 10 minutes to the Blue Mosque. Entry is free; give it about an hour.
- Cross Sultanahmet Square past the old Hippodrome and see Hagia Sophia from outside.
- Tram, Marmaray and M4 back, leaving Sultanahmet 3 hours 15 minutes before your flight, and by about 11pm at the latest.
Time the mosque. The Blue Mosque closes to visitors for prayers, which leaves windows of about 8:30 to 11:30am, 1 to 2:30pm and 3:30 to 4:45pm; on Fridays it opens only from 1:30pm. Prayer times move through the year, so check the times posted at the gate. Land at 9am and you’ll reach Sultanahmet at about 11:40am, just after the morning window, so see the square first and go in when the mosque reopens at 1pm.
Hagia Sophia. Going inside is ticketed and isn’t timed in this plan. If you want to, allow at least an hour more, or book a timed ticket.
Topkapı Palace
The Ottoman sultans’ palace, on the point above the Bosphorus: courtyards, pavilions and the Harem. It needs 9 hours, suits anyone keen on history, and is closed on Tuesdays.
- The same ride to Sultanahmet, about 100 minutes.
- Walk about 15 minutes past Hagia Sophia to Topkapı Palace. Foreign visitors pay ₺2,750 for the palace, the Harem and Hagia Irene together. Give it about 3 hours.
- Walk back to the tram and take the same way home, leaving Sultanahmet 3 hours 15 minutes before your flight.
Pick your day. The palace is closed on Tuesdays and on the first day of Ramazan Bayramı, 9 March 2027, but open on New Year’s Day. Its ticket office is open 9am to 5pm, so arrive by about 2pm to give it 3 hours.
Tickets ahead. To skip the ticket queue, GetYourGuide sells Topkapı Palace tickets with the Harem (opens in a new tab).
Private tours with pickup at Sabiha Gökçen
No airline runs a free tour from here: Turkish Airlines’ Touristanbul leaves from Istanbul Airport only. A private tour that collects you at arrivals takes the metro changes and the timing off your hands, which suits first-timers and families.
- What’s on offer. GetYourGuide lists tours and transfers from Sabiha Gökçen (opens in a new tab) and a private layover tour of Istanbul (opens in a new tab), and Viator has a layover tours category (opens in a new tab) for the city.
- Check the airport. Many Istanbul layover tours collect from Istanbul Airport, on the far side of the city. Book one that names Sabiha Gökçen for the pickup.
- Layover needed. Take the tour’s length and add roughly 2.5 hours, for passport control on arrival and the 90-minute return before take-off. So a 4-hour tour wants a layover of about 6.5 hours, a 6-hour tour about 8.5.
- Before you book, check what’s included (entry tickets, a meal), whether the price is per person or per group, the cancellation terms, and what happens if your flight lands late.
Overnight: sleep first, then the old city
A night by the airport, then Sultanahmet early
For a late landing and a flight the next afternoon. Sleep at the ISG Airport Hotel, a 5-minute walk from the terminal, then take the first metro at about 6am and reach Sultanahmet at about 7:40am, before the Blue Mosque opens to visitors at 8:30am.
- Clear passport control and walk to the ISG Airport Hotel. You need to be able to enter Türkiye; the Kepler cabins are past passport control in departures, so they suit a night spent airside, not one before a morning in town.
- First M4 at about 6am, change to Marmaray at Ayrılık Çeşmesi, then the tram to Sultanahmet.
- The Blue Mosque at 8:30am, then the square and Hagia Sophia from outside.
- Tram, Marmaray and M4 back, leaving Sultanahmet 3 hours 15 minutes before your flight.
Earliest flight. After a morning from 8:30 to 11am, the earliest flight this suits is about 2:15pm. For an earlier one, take the first metro to Kadıköy instead, about 7:10am there: an hour by the water allows a flight from about 11:30am.
Fridays. The Blue Mosque opens to visitors only at 1:30pm, so with 9 hours or more in hand, make Topkapı Palace, from 9am, your morning instead.
24 hours
With a day or more, see both sides of the water: Sultanahmet and Topkapı Palace on one day, Kadıköy and the ferry across on the other, with a night in a hotel in town or by the airport. No airline offers a stopover at Sabiha Gökçen, so the room is yours to book, and you need to be able to enter Türkiye.
Rest at the airport
Three places to rest, none with a published price. Past passport control, the cabins and the lounge need no entry to Türkiye; the hotel is landside.
Kepler Sleep Cabins, airside
On the mezzanine past passport control in international departures. Cabins by the hour, with showers, smart toilets and lockers: 28 for men, 14 for women and 5 family rooms, booked at self-service kiosks. Pegasus offers them to its own passengers as the Kepler Club, and you need an international flight out of Türkiye to use them. Neither the price nor a minimum stay is published.
Plaza Premium Lounge, airside
In departures, overlooking the apron, for domestic and international flights, and open to travellers in any class. You can get in as a passenger of Pegasus or another airline with a contract, with a lounge scheme such as Priority Pass or LoungeKey, or by booking entry ahead, through GetYourGuide or the lounge itself. No price or time limit is published, so check when you book.
ISG Airport Hotel, landside
Next to the terminal, a 5-minute walk after you leave it, with 128 rooms for crews and transit passengers. It’s landside, so you need to be able to enter Türkiye. No price or day rate is published: book on the hotel’s own site or call ahead.
Tips that make a Sabiha Gökçen layover easier
- Pay by card for Kadıköy, by İstanbulkart beyond it. A contactless bank card covers the M4 at the single-ticket fare, ₺65 a ride; for Marmaray, the tram and the ferry, the İstanbulkart pays for every leg.
- Time the Blue Mosque. Arrive inside a visiting window, and not before 1:30pm on a Friday.
- Mind the evening ferries. After about 8:30pm, boats from Kadıköy go to Karaköy, not Eminönü.
- Don’t cut the last metro fine. Aim to be on a train from Kadıköy by 11:30pm, and leave Sultanahmet by 11pm.
- Changing to Istanbul Airport? On our estimate, allow about 6 hours between flights with hand luggage, or 7 with checked bags: how to get there.
- Cash. Exchange offices in arrivals and departures are open around the clock.