Can you walk from Terminal 3 to 5 at Ord?

Can you walk from terminal 3 to 5 at ord? Walking vs transit options

Finding out whether can you walk from terminal 3 to 5 at ord requires understanding the airport layout before your trip. Knowing the correct terminal transfer methods prevents missed flights and unnecessary security delays.

Can you walk from Terminal 3 to Terminal 5 at ORD?

No, you cannot walk from Terminal 3 to Terminal 5 at Chicago OHare International Airport (ORD) because they are physically separated. The domestic terminals (1, 2, and 3) form a connected continuous horseshoe layout, while Terminal 5 sits entirely apart as a separate international building. Walking between them outside or across the active airfield is impossible for passengers.

Why Walking Between These Terminals Is Impossible

The airport layout creates a hard boundary between the core domestic complex and the international hub. Terminal 3 handles primarily domestic flights, whereas Terminal 5 manages international arrivals and departures along with select partner airlines. Because no pedestrian walkways bridge the gap across the ramp and taxiway areas, travelers must rely on official transit systems to bridge the physical divide.

Alternative Transfer Options Between Terminals

Since walking is out of the question, the airport provides two distinct methods to get you where you need to go. Your choice depends on whether you want to stay airside or clear security twice.

Airport Transit System (ATS)

The Airport Transit System (ATS) is a free, 24-hour automated train that runs outside security (landside) connecting all terminals, parking lots, and the Multi-Modal Facility. Using the train requires you to exit security at Terminal 3 and re-clear standard TSA security checkpoints when you arrive at Terminal 5. It is a reliable choice if you have plenty of time or need to how to get from terminal 3 to terminal 5 at chicago airport.

Terminal Transfer Bus (TTB)

For eligible connecting passengers with a same-day boarding pass for Terminal 5, the secure-side Terminal Transfer Bus offers a streamlined alternative. This bus picks up at Terminal 3 near Gates G17 and K20 and drops off directly at Terminal 5 without requiring you to re-clear standard TSA security. It operates daily within the specific ord terminal transfer bus hours from 11:30 AM to 9:30 PM, running every 15 minutes.

Comparing ORD Terminal Transfer Methods

Airport Transit System (ATS)

• Long layovers, checking bags, or traveling outside TTB operating hours

• Free

• Landside (requires exiting and re-clearing security)

• 24 hours daily

Terminal Transfer Bus (TTB)

• Tight connections with a valid same-day international boarding pass

• Free

• Airside (stays secure, no TSA re-screening)

• Daily from 11:30 AM to 9:30 PM (every 15 minutes)

A Tight International Connection at O'Hare

David landed at Terminal 3 on a domestic flight from Dallas, facing a tight connection to an international departure out of Terminal 5. He initially panicked, thinking he could quickly power-walk between the buildings.

After asking an agent, he realized walking was impossible and worried he would miss his flight while waiting in long TSA lines outside.

Luckily, it was mid-afternoon, so he rushed directly to Gate K20 in Terminal 3 to catch the secure-side Terminal Transfer Bus.

The airside bus skipped the main security lines entirely, landing him in Terminal 5 with minutes to spare and sparing him a stressful terminal re-entry process.