Late night is actually the best time to arrive
This may sound counterintuitive, but landing at Sabiha Gokcen after 10 PM is in some ways better than arriving during the day. Istanbul's infamous traffic clears dramatically at night, and the drive to the European side - which can take 90-120 minutes during rush hour - often drops to 45-60 minutes after midnight.
The airport handles late flights regularly, particularly from European budget airlines whose schedules often push arrival times past 10 PM. You will not be alone in the terminal.
What is available after midnight
Taxis continue to operate from the rank outside arrivals around the clock. Late-night taxis are readily available, and the lighter traffic means lower metered fares since less time is spent in the car. A ride to Sultanahmet that costs 500 TL during rush hour might cost 350-400 TL at midnight.
BiTaksi app works at night, though driver supply decreases after 1-2 AM. If you have the app set up, it remains a viable option.
Havaist buses run late-night services to Taksim and Kadikoy, though frequency drops after midnight. Check the current schedule before relying on this - service times change seasonally. The bus journey is faster at night due to empty roads.
Pre-booked transfers are available regardless of the hour. The driver waits for your flight, even if it is delayed. The fixed price does not change for late arrivals, and the faster nighttime traffic means you reach your hotel sooner.
Public transit (Marmaray, metro, tram) shuts down around midnight. If your plan involves connecting to the European side via Marmaray, you need to arrive early enough to catch the last train.
Safety at night
Istanbul is generally safe for tourists, and the airport area is well-lit and staffed. The taxi rank operates normally. The main precaution is the standard one: ensure the taxi meter is running and avoid any unsolicited offers for rides from people inside the terminal.
The drive into the city at night is on highways and main roads that are well-lit and patrolled. The neighborhoods you pass through are residential and commercial, not areas of concern.
The Bosphorus crossing at night
If you are heading to the European side, you will cross the Bosphorus via one of the bridges or the Eurasia Tunnel. At night, these crossings are quick - often just a few minutes. During the day, bridge approaches can be bottlenecked for 20-40 minutes.
The bridge toll is included in taxi meters and pre-booked transfer prices.
Practical tips
Withdraw Turkish Lira from an ATM inside the terminal. Some taxi drivers may claim their card machine is not working, so cash is a useful backup.
If you booked a transfer, have the confirmation accessible. Most services send WhatsApp messages with driver details, which is helpful for locating your driver quickly.
Istanbul can be surprisingly cold at night from November through March. If you are arriving from a warm climate, have a jacket accessible.
The honest recommendation
If you are arriving after 10 PM and heading to the European side, a pre-booked transfer is the smoothest option. You land, meet the driver, and take advantage of empty roads. The ride that daytime arrivals dread is actually pleasant at night - shorter, cheaper (for taxis), and less stressful.