List of Airlines at (ORD) airport

Terminal 1

All Nippon

Location: T1
Tel :1-800-235-9262

Lufthansa

Location: T1 (Departures)
Tel : 1-800-645-3880
Tel (TTY): 1-866-846-4283

United Airlines

Location: T1 (Departures)
Tel : 1-800-864-8331 (Domestic), 1-800-538-2929 (International)
Tel (TTY): 1-800-323-0170 

Terminal 2

Air Canada

Location: T2
Tel : 1-888-247-2262

Alaska Airlines

Location: T2
Tel : 1-800-252-7522
Tel (TTY): 1-888-361-8071

Delta y Delta Shuttle

Location: T2
Tel : 1-800-221-1212

JetBlue

Location: T2
Tel : 1-800-538-2583

Lufthansa

Location: T2 (Arrivals)
Tel : 1-800-645-3880
Tel (TTY): 1-866-846-4283

Terminal 3

American Airlines

Location: T3 (Departures)
Tel : 1-800-433-7300
Tel (TTY): 1-800-543-1586

Cape Air

Location: T3
Tel : 800-227-3247

Denver Air Connection (Key Lime Air)

Location: T3
Tel : 866-373-8513

Iberia Airlines

Location: T3 (Departures)
Tel : 1-800-772-4642

Japan Airlines (JAL)

Location: T3 (Departures)
Tel : 1-800-525-3663

Spirit Airlines

Location: T3
Tel : 1-855-728-3555
Tel (TTY): 1-800-955-8771

Terminal 5

Aer Lingus

Location: T5
Tel : 1-800-474-7424

All Nippon

Location: T1
Tel :1-800-235-9262

Austrian Airlines

Location: T5
Tel : 1-800-843-0002

AeroMexico

Location: T5
Tel : 1-800-237-6639

Air France

Location: T5
Tel : 1-800-237-2747

Air India

Location: T5
Tel : 1-800-621-8231

American Airlines

Location: T5 (International arrivals)
Tel : 1-800-433-7300
Tel (TTY): 1-800-543-1586

Austrian Airlines

Location: T5
Tel : 1-800-843-0002

British Airways

Location: T5
Tel : 1-800-247-9297
Tel (TTY): 1-866-393-0961

Cathay Pacific Airways

Location: T5
Tel : 1-800-233-2742
Tel (TTY): 1-877-609-2233

Copa Airlines

Location: T5
Tel : 1-800-359-2672

EVA Air

Location: T5
Tel : 1-847-261-9900

Emirates

Location: T5
Tel : 1-800-777-3999
Tel (TTY): 1-888-320-1576

Ethiopian Airlines

Location: T5
Tel : 1 (800) 445-2733

Etihad Airways

Location: T5
Tel : 1-877-690-0767

Finnair

Location: T5
Tel : 1-877-757-7143

Frontier Airlines

Location: T5
Tel : 1-801-401-9000​

Iberia Airlines

Location: T5 (Arrivals)
Tel : 1-800-772-4642

Icelandair

Location: T5
Tel : 1-800-223-5500

Japan Airlines (JAL)

Location: T5 (Arrivals)
Tel : 1-800-525-3663

KLM Royal Dutch

Location: T5
Tel : 1-800-618-0104
Tel (TTY): 1-800-831-4488

Korean Air

Location: T5
Tel : 1-800-438-5000
Tel (TTY): 1-888-898-5525

LOT Polish Airlines

Location: T5
Tel : 1-212-789-0970

Lufthansa

Location: T5 (Arrivals)
Tel : 1-800-645-3880
Tel (TTY): 1-866-846-4283

Qatar Airways

Location: T5
Tel : 1-877-777-2827
Tel (TTY): 1-877-578-2757

Royal Jordanian

Location: T5
Tel : 1-212-949-0050

Southwest Airlines

Location: T5
Tel : 1-800-435-9792
Tel (TTY): 1-800-533-1305

SWISS

Location: T5
Tel : 1-877-359-7947
Tel (TTY): 1-855-254-1842

Scandinavian Airlines (SAS)

Location: T5
Tel : 1-800-221-2350

Sun Country

Location: T5
Tel : 651-905-2737

TAP Air Portugal

Location: T5
Tel : 800-221-7370

Turkish Airlines

Location: T5
Tel : 1-800-874-8875

United Airlines

Location: T5 (International arrivals)
Tel : 1-800-864-8331 (Domestic), 1-800-538-2929 (International)
Tel (TTY): 1-800-323-0170

VivaAerobus

Location: T5
Tel : 1-888-935-9848

Volaris Airlines

Location: T5
Tel : 1-866-988-3527

WestJet

Location: T5
Tel : 1-888-937-853 - (TTY):1-877-952-0100

Many passengers do not know who to consult or make a claim to some doubts that arise before or after traveling, or any inconvenience that may occur. Listed below are topics that need to be consulted, coordinated or resolved directly with the airline.   Check in procedure   Documentation and visa required   Baggage weight limits, restricted and prohibited Items   Baggage and excess billing rates   Requirements for minors traveling alone or without parents   Special passengers needing prior coordination with the airline: people with disabilities, reduced mobility and pregnant women   Lost, delayed or damaged baggage reclaim   Possible flight's changes of date or cancellations   Confirmation of flight schedules (departures or arrivals)   Flight status report (for possible delays, cancellations, rescheduling)   In case your airline reschedules your flight, coordinate with the company for possible compensation, due to extra nights accomodation, food, flight connection lost, etc. Remember that it is always advisable to have a traveler's assistance insurance, in case the airline does not respond to any inconvenience that might happen (baggage lost or damaged, cancellation or flight delay, etc.)

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