48 hours in Istanbul, and one ferry you should not skip
Two days across two continents: what the headline sights cost now, how İstanbulkart works, and why the €1 commuter ferry beats every organised cruise.
onesim team
Istanbul is two cities that happen to share a name, and the thing that connects them — a twenty-minute commuter ferry that costs about the same as a coffee — is also the best thing you will do there.
Two days is not enough for Istanbul. It is enough to see the peninsula properly, cross to Asia, and leave with a list for next time, which is the honest goal of a 48-hour trip.
What the headline sights cost now
Istanbul's big four have become genuinely expensive, and they rose again in 2026. It is worth knowing before you build a day around them.
| Sight | Price | Notes |
|---|---|---|
Hagia Sophia | €25 for foreign visitors | Upper gallery only; the ground floor is a working mosque |
Topkapı Palace | About ₺2,750 with the Harem and Hagia Irene | Museum Pass İstanbul is valid |
Basilica Cistern | About ₺1,950 by day, more for the evening session | Museum Pass İstanbul is not valid |
Blue Mosque | Free | Closed to visitors during the five daily prayers |
If you plan to visit three or more state museums, price up the Museum Pass İstanbul before you buy anything individually. If you only want one, make it the Cistern: it is the sight that is unlike anywhere else, and it takes forty minutes.
Getting in from IST or Sabiha Gökçen
Which airport you land at changes your first two hours completely.
From Istanbul Airport (IST), on the European side, the M11 metro runs to Gayrettepe and Kağıthane for the standard metro fare — about ₺42, the same as any other metro ride. From Gayrettepe you change to the M2 for Taksim and Şişhane, or take the Marmaray from Kağıthane's connections towards the old city. It is by far the cheapest way in. Havaist coaches go directly to Taksim, Sultanahmet and Kadıköy for several hundred lira and take about 90 minutes in traffic.
From Sabiha Gökçen (SAW), on the Asian side, the M4 metro runs to Kadıköy, where you can catch a ferry straight across to Eminönü or Karaköy — which is a much better arrival than a taxi through the bridge traffic. Havabüs coaches serve Taksim and Kadıköy.
Do not accept a lift from anyone who approaches you inside the terminal. Licensed taxis queue outside; the meter should be running before you move.
İstanbulkart: buy it first, top it up generously
One card covers the metro, trams, buses, the Marmaray tunnel under the Bosphorus, the funiculars and every public ferry. You buy it from a machine in the arrivals hall or any station — the card itself costs about ₺165 as of mid-2026 — and you top it up with cash or a card at the same machines.
Two people can share one card: tap twice at the gate. Transfers within a couple of hours are discounted, so a metro-then-tram journey costs less than two separate rides. Contactless bank cards also work on many gates now, but they pay the full single fare with no transfer discount.
Day one: the peninsula
Start at the Basilica Cistern at opening. It is indoors, it is cool, and it is the one sight where arriving first genuinely changes the experience — the columns and the Medusa heads are worth ten quiet minutes.
Walk up to the Blue Mosque, which is free and open to visitors outside the five daily prayer times. Shoulders and knees covered, shoes off, and women cover their hair — scarves are lent at the door. Cross the park to Hagia Sophia: tourists now enter the upper gallery, which is where the mosaics are anyway.
Have lunch in the streets behind the Arasta Bazaar rather than on the square, then spend the afternoon at Topkapı Palace — the Harem is the part people remember and it is included in the combined ticket. If palaces are not your thing, swap it for the Süleymaniye Mosque, which is free, quieter, and has the better view over the Golden Horn.
Finish in the Grand Bazaar in the last hour before it closes at seven, when the crowds thin. Prices are negotiable; a friendly first counter is usually about half of the asking price, and walking away is a normal part of the conversation, not an insult.
Day two: Galata, Karaköy, and across to Asia
Cross the Galata Bridge on foot in the morning — fishermen on the upper deck, fish restaurants below — and climb into Galata for the tower and the view. The lanes downhill into Karaköy are where Istanbul's coffee and design scene lives, and where a mid-morning breakfast costs a third of what the same plate costs in Sultanahmet.
Take the Tünel funicular up to İstiklal Caddesi, walk the length of it to Taksim if you want the noise, or skip it and ride a ferry instead.
In the afternoon, cross to Kadıköy on the Asian side. The market streets around Serasker Caddesi are the best eating in the city, the bars behind them are where people in their twenties actually go, and it is a twenty-minute walk along the water to Moda for the sunset back at Europe.
The ferry is the best thing in the city
Every guide sells you a Bosphorus cruise. You do not need one. The public ferries — Eminönü to Kadıköy, Karaköy to Üsküdar, Beşiktaş to Kadıköy — cost a normal fare on your İstanbulkart, run every fifteen or twenty minutes, and go along the same water.
Sit outside at the back, buy a glass of tea from the man with the tray, and watch the city change continents. If you want a longer trip, the Şehir Hatları full Bosphorus ferry runs up to Anadolu Kavağı near the Black Sea and back and takes most of a day.
Practical notes
Istanbul is enormous — 15 million people across two continents — and journey times are much longer than the map suggests. Plan two areas a day, not five sights.
Mosques close to visitors for roughly half an hour at each of the five daily prayers, and for longer around midday on Friday. Check the day's times in the morning and build around them.
Tap water is chlorinated and most residents drink bottled. Tipping is around 10% in restaurants, and rounding up for taxis.
