Frequently Asked Questions about O'Hare Airport

You can use the free Airport Transit System (ATS), which serves Terminals 1, 2, 3, 5, and the rental car center (MMF). For secure connections (without exiting security) between T5 and T1/T3, the Terminal Transfer Bus (TTB) is an option, but operates on limited schedules. Sometimes walking between Terminals 1, 2, and 3 is faster.

The CTA Blue Line train runs 24/7 between the airport and downtown Chicago (The Loop). The ride takes about 45 minutes and tickets from O'Hare cost around $5.00.

There is no direct public transport link. Options include private shuttle services, taxis, or using CTA (Blue Line to Orange Line via downtown), which can be time-consuming.

Renting a car can be a good option, but it takes time. The rental center (MMF) is distant and requires the ATS train. Common complaints include hidden fees and long wait times at some companies.

Pick‑up for services like Uber and Lyft is centralized on the Upper Level of Terminal 2. You must take the ATS train if you arrive at another terminal. LEARN MORE

A minimum of 3 hours is risky. Due to long immigration lines (which can exceed 2 hours) and long walking distances, many experienced travelers recommend at least 4 hours for a stress‑free international connection.

Congestion causes two major issues: long waits at security and, especially, runway delays. It's common to wait 30 to 90 minutes onboard after landing or before takeoff.

Delays and cancellations are very common, especially in winter. Contact your airline immediately. Have a backup plan for food and device charging, as restaurants close early and outlets may not work.

Severely. The combination of runway delays, long walks, and immigration lines makes tight connections very risky. A minimum of 3–4 hours between flights is recommended for a safe buffer.

Yes, unlimited Wi‑Fi is available in all terminals. Connect to "Boingo Hotspot" or "_Free_ORD_Wi‑Fi". However, many travelers report that the connection is unstable and slow. Do not rely on it for critical tasks.

Yes, electronics stores like InMotion (Terminals 1, 3, and 5) sell physical SIMs. Many Hudson News kiosks also offer prepaid SIM cards. Alternatively, the best option may be to purchase an eSIM from Holafly and activate mobile data as soon as you deplane. Holafly offers various plans and destination options.

O'Hare offers many dining and shopping options (most close early), a yoga room in Terminal 3, and art exhibits. You can also pay for access to the Hilton Hotel gym. Airport lounges are a good way to escape the crowds if you have access.

If you left something on the plane or your checked luggage is missing, contact your airline directly. If you lost an item elsewhere, here are the contacts:

• Security checkpoints (TSA): online form.
• Airport Transit System (ATS): Tel +1 773 601 1817.
• Parking lots: Tel +1 773 686 7530.
• Public areas & Customs: Contact Chicago Police or U.S. Customs.

No, O'Hare does not offer public luggage storage. The Hilton Health Club allows small carry‑on storage if you pay for gym access.

Quality varies. Tortas Frontera is the safest and most consistently praised choice. Most other outlets are hit or miss. Keep in mind that nearly all close early (9–10 PM).

Mixed experience. Some areas are renovated, but many feel outdated. Cleanliness is inconsistent, especially in Terminal 5 bathrooms. It's very common to find broken outlets.

Yes, but you must request it well in advance through your airline. The assistance staff is generally kind, but airport logistics often cause long waits, which can be stressful.