Istanbul Airport (IST): know the code before you travel
IST is the three-letter IATA code for Istanbul Airport, the major international hub on Istanbul’s European side. This guide also explains LTFM, the difference between IST, SAW and ISL, the single-terminal layout, metro and Havaist connections, transfers, parking and travel-day checks.
What is the Istanbul Airport code?
The Istanbul Airport code most travelers need is IST. It is the three-letter IATA code used on airline booking systems, boarding passes, baggage tags, hotel-transfer reservations and passenger flight searches.
The airport’s ICAO code is LTFM. That four-letter identifier is mainly used in flight planning, aviation charts, operational systems and other professional aviation contexts. DHMİ, Türkiye’s State Airports Authority, lists Istanbul Airport as IST/LTFM and states that the airport operates 24 hours a day, seven days a week.
Airport live checks & travel tools
Use current local conditions, official live-status links and planning calculators before you travel. Airline gate, terminal and flight times can change; your carrier remains the final source for flight-specific details.
Live flight center
Check the airport's official flight board, then confirm any last-minute gate or timing change with the airline.
Current airport-area weather
Useful for planning your trip to the airport. This is model-based local weather, not an aviation METAR or an airline operational forecast.
Quick official checks
Open the source that matches the decision you are making right now.
When should I reach the airport?
A planning estimate based on flight type and common time buffers. Always increase the buffer for severe weather, major holidays, unusual airport alerts or airline instructions.
Connection-risk checker
This is a planning heuristic, not an airline minimum-connection-time rule. International arrivals that require U.S. entry processing, baggage claim and security can need substantially more time.
Parking cost estimator
Uses the airport-specific rates stored in this article's configuration. Rates can change; verify availability and final pricing on the official parking page before driving in.
Passenger pickup readiness
Landing time is not curb-ready time. Add time for taxiing, deplaning, baggage claim, customs when applicable and walking to the correct pickup zone.
IST vs SAW vs ISL: Istanbul airport codes are not interchangeable
A search for “Istanbul airport code” can return several identifiers because Istanbul has multiple aviation facilities. The code printed on your booking matters more than the city name.
| Code | Airport | What it means for travelers |
|---|---|---|
| IST | Istanbul Airport | The main airport covered by this guide. Use IST when your passenger booking shows Istanbul Airport. |
| SAW | Istanbul Sabiha Gökçen International Airport | A separate airport on Istanbul’s Asian side. A SAW flight is not departing from IST. |
| ISL | Istanbul Atatürk Airport | DHMİ currently lists ISL/LTBA for Atatürk Airport, whose traffic is cargo/general aviation rather than the normal passenger hub role previously associated with Atatürk. |
Does Istanbul Airport have separate domestic and international terminals?
No. Turkish Airlines’ current Istanbul Airport guidance states that domestic and international passengers are served under one roof. Travelers do not need to transfer between separate terminal buildings simply because one flight is domestic and another is international.
The building is very large, however. Check-in islands, passport control, security and boarding gates can still involve substantial walking. Your airline’s check-in instruction and the airport flight-information screens should take priority over a static online article.
Departing passenger
Confirm the operating airline, flight number and check-in area before leaving for the airport. After check-in or bag drop, follow signs for the correct domestic or international processing route.
Arriving passenger
Follow the signs for domestic arrivals or passport control as applicable. Baggage collection and customs procedures depend on the flight and itinerary.
Connecting passenger
Do not assume every connection follows the same route. Single-ticket and separate-ticket itineraries can have different baggage and immigration steps.
How to get between Istanbul Airport and the city
The practical choices are the M11 rail connection, Havaist airport buses, taxis and pre-arranged private transport. The best option depends on your destination, luggage, arrival time and how many transfers you are comfortable making.
M11 metro
The M11 rail line serves Istanbul Airport and connects toward Gayrettepe, where passengers can transfer into the wider Istanbul metro network. Current network information also shows connections toward the Halkalı side of the system.
Best for: travelers who want to avoid road traffic and are comfortable transferring to another rail line for their final district.
Havaist airport bus
Havaist operates baggage-friendly airport coach services between Istanbul Airport and multiple parts of Istanbul. Its official site provides current routes, stops and departure information.
Airport boarding: Havaist’s current guidance places its Istanbul Airport passenger area on the arrivals-side transportation level at -2.
Taxi or private transfer
Road transport can be convenient for hotels or addresses that are awkward by rail, especially with several bags. Travel time is traffic-sensitive, so allow a larger buffer during busy periods.
Before paying: use official airport transport information and avoid relying on an unverified fare quoted in an old travel article.
Connecting through IST: baggage and passport control can change the route
Istanbul Airport handles a large volume of connecting traffic. The correct transfer path depends on whether you are traveling international-to-international, international-to-domestic, domestic-to-international, or on separate tickets.
Check whether the itinerary is on one ticket
A through-ticket can allow bags to be checked to the final destination and may provide a dedicated transfer path. Separate tickets can require baggage collection, entry procedures and a new check-in.
Follow the transfer signs before entering arrivals
If your airline has checked you through and your itinerary allows an airside transfer, follow the connection signage rather than automatically heading to baggage claim.
Expect passport control when your itinerary requires entry into Türkiye
International-to-domestic journeys commonly involve Turkish entry formalities before the domestic onward segment. Your nationality and itinerary determine the applicable entry requirements.
Recheck the onward gate
Do not rely on the gate shown hours earlier. Check the airport information screens and your operating airline’s current flight information after completing the transfer process.
Parking and meeting passengers at Istanbul Airport
Istanbul Airport provides on-site parking and passenger pickup/drop-off facilities, but rates and operational arrangements can change. Check the official airport site shortly before driving rather than relying on a saved tariff.
Driving to a departure
- Confirm the airport code is IST before navigation.
- Check the airline and current check-in instructions.
- Allow extra time for terminal approach traffic and parking.
- Save the location of your parked vehicle before entering the terminal.
Meeting an arriving passenger
- Track the actual flight, not only the scheduled landing time.
- Allow for passport control and baggage collection on international arrivals.
- Agree on a clear meeting point inside or outside the terminal.
- Check current pickup and parking instructions before approaching the terminal.
Passport, visa and entry checks for Türkiye
Airport code information does not determine whether you may enter Türkiye. Visa requirements depend on nationality, passport type, purpose of travel and length of stay. Some travelers may qualify for Türkiye’s official e-Visa system while others may be visa-exempt or need a different visa process.
Use the Republic of Türkiye Ministry of Foreign Affairs guidance and the official evisa.gov.tr portal where applicable. Be careful with private websites that resemble a government visa service.
Before departure
- Check passport validity rules for your nationality.
- Confirm whether a visa or e-Visa is required.
- Use the name and passport details exactly as required by your airline and travel documents.
- Check any transit-country rules if your journey includes another country.
At the airport
- Keep passport and boarding documents easily accessible.
- Use the operating airline for baggage and check-in deadlines.
- Follow airport signs for passport control, transfer or domestic connections.
- Recheck the gate after completing formalities.
Ask for assistance before the travel day when possible
A very large terminal can make walking distance, orientation and connection timing more important for travelers with reduced mobility, sensory needs, older passengers and families with young children.
If you need wheelchair assistance or another airline-provided special service, request it through the operating airline in advance and verify the airport meeting process. For airport accessibility facilities, use Istanbul Airport’s official accessibility information rather than assuming every service is automatically provided with a ticket.
Common Istanbul Airport mistakes and what to do
Your ticket says SAW, not IST
You are booked at Sabiha Gökçen Airport, a separate airport. Do not navigate to Istanbul Airport simply because both serve Istanbul.
You searched “Istanbul International Airport”
Confirm the three-letter code on the actual booking. Modern passenger itineraries using Istanbul Airport show IST.
Your map still shows Atatürk Airport
DHMİ identifies Atatürk Airport as ISL/LTBA. An IST passenger flight should not be navigated to Atatürk Airport.
Your gate changed
Use airport screens and the operating airline’s current flight information. Static travel guides should never be treated as a live gate source.
Your connection is on separate tickets
Confirm baggage rules with both airlines and plan for the possibility of entering Türkiye, collecting baggage and checking in again.
Your metro or bus plan was saved days ago
Recheck the operator’s current timetable and service notices. Temporary closures, maintenance or route changes can affect the plan.
Where is Istanbul Airport?
Istanbul Airport is in the Arnavutköy area on the European side of Istanbul. For navigation, search the airport name together with the code IST so you do not accidentally select Sabiha Gökçen or Atatürk Airport.
Related international airport guides
Hamad International Airport in Doha, Qatar.
Paris Charles de Gaulle airport code and travel information.
Narita International Airport and Tokyo-area airport-code guidance.
Istanbul Airport code FAQs
What is the Istanbul Airport IATA code?
IST is the IATA passenger code for Istanbul Airport. It is the code normally used for airline bookings, boarding passes and checked-bag tags.
What is the ICAO code for Istanbul Airport?
The ICAO code is LTFM. It is mainly used in aviation operations and flight-planning systems.
Are IST and SAW the same airport?
No. IST is Istanbul Airport, while SAW is Istanbul Sabiha Gökçen International Airport. They are separate airports in different parts of the Istanbul metropolitan area.
Is IST the same as Istanbul Atatürk Airport?
No. DHMİ lists Istanbul Airport as IST/LTFM and Istanbul Atatürk Airport as ISL/LTBA.
Does Istanbul Airport have separate domestic and international terminals?
No separate terminal buildings are required for domestic versus international passengers. Turkish Airlines states that passengers are served under one roof, although different processing areas and gates are used.
How do I get from Istanbul Airport to central Istanbul?
Common options include the M11 metro, Havaist airport buses, taxis and private transfers. The best route depends on your exact destination, arrival time, luggage and current service conditions.
Is Istanbul Airport open 24 hours?
DHMİ currently lists Istanbul Airport as open 24 hours a day, seven days a week, year round. Individual airline counters, shops and transport services follow their own operating schedules.
Where does Havaist leave from at Istanbul Airport?
Havaist’s current airport guidance places its passenger service on the arrivals-side transportation level at floor -2. Check the official Havaist site for your current route and stop before travel.
Check these sources before travel
These links lead to the airport or responsible authorities and operators. Use them for details that may change after this article is published.
Airport and transport information was checked against current official or primary sources on September 25, 2026. Dynamic items such as gates, airline counters, transport schedules, parking prices and entry requirements should be rechecked for your actual travel date.