How to get from T3 to T5 Ohare?

How to get from T3 to T5 Ohare? Airside and landside routes

Navigating between terminal buildings requires selecting the correct transit option to ensure you catch your next flight on time. Understanding the exact shuttle bus and train routes helps passengers plan an efficient terminal transition while avoiding unnecessary delays or extra how to get from t3 to t5 ohare screening lines during connections.

How to get from T3 to T5 Ohare?

Getting from Terminal 3 to Terminal 5 at Chicago OHare International Airport (ORD) requires choosing between two main methods depending on your security status and schedule. You can take either the airside ohare terminal transfer bus schedule to stay secure or the landside Airport Transit System train which requires exiting security. OHare handles hundreds of thousands of daily passengers, and making the wrong choice here can add over an hour to your connection time.

Look, transferring between terminals at OHare isnt always straightforward. When I first tried navigating this airport years ago, I made the mistake of exiting security blindly, only to face a massive TSA line at Terminal 5 that nearly cost me my flight. Lets make sure that doesnt happen to you.

Option 1: Terminal Transfer Bus (Airside - No Security Re-screening)

The Terminal Transfer Bus is the most efficient choice if you qualify. It operates daily from 11:30 AM to 9:30 PM with departures approximately every 15 minutes. Where to board in Terminal 3: Gate G17 or Gate K20. Where it drops off: Terminal 5 at Gate M13. Requirements: You must possess a valid boarding pass for a departing international or connecting flight. This option keeps you completely inside the secure airside area so you can skip TSA lines entirely.

Option 2: Airport Transit System (ATS) Train (Landside - Requires Exiting Security)

If your connection falls outside the transfer bus operating hours (between 9:30 PM and 11:30 AM), or if you prefer a different route, the Airport Transit System is your go-to choice. When it runs: 24 hours a day, 7 days a week. How to use: Exit the secure area in Terminal 3, follow the airport overhead signs pointing to the Airport Transit System station, board the free automated train, and ride it directly to Terminal 5. Requirements: You must exit security and go through the TSA checkpoint again upon arriving at Terminal 5. Allow extra time for security queues.

Choosing Between the Bus and the Train

Deciding which transit method to use comes down to your flight schedule and luggage status. If you arrive during the daytime and want to avoid another round with TSA security agents, the airside bus wins every time. But if you land late at night or early in the morning, the ATS train is your only option since the bus stops running at 9:30 PM. This next part surprises most people. Even though the ATS train runs 24/7, clearing security twice at a busy hub like OHare can easily eat up 45 to 60 minutes during peak travel windows.

Comparison of O'Hare Terminal 3 to Terminal 5 Transfer Options

Terminal Transfer Bus (Airside)

1. Daily from 11:30 AM to 9:30 PM (about every 15 minutes)
2. Valid boarding pass for a departing flight
3. Terminal 3 at Gate G17 or Gate K20
4. Stays inside secure area; no TSA re-screening required

Airport Transit System / ATS (Landside)

1. 24 hours a day, 7 days a week
2. Open to all passengers willing to clear security again
3. Terminal 3 ATS station via landside airport signs
4. Requires exiting security and clearing TSA checkpoint again at Terminal 5

Navigating a Tight Afternoon Connection

David arrived at Chicago O'Hare Terminal 3 on a domestic flight with only a 90-minute window before his international connection at Terminal 5. He was worried about missing his flight due to long security queues.

His first thought was to follow general signs toward the exit and look for a train, but he remembered checking the transfer bus schedule beforehand. He walked quickly over to Gate K20 inside Terminal 3 instead.

He boarded the airside Terminal Transfer Bus right as it was preparing to leave, bypassing the main terminal landside paths completely. The ride dropped him directly at Gate M13 in Terminal 5 without any security friction.

He made it to his boarding gate with 35 minutes to spare, turning what could have been a stressful checkpoint nightmare into a smooth terminal hop.