List of Airlines at ORD Airport
The following is a list of airlines serving Chicago O'Hare airport (ORD)
Please note: Contact details and schedules, airline offers, and routes may vary according to the season and the commercial decisions of each company, so it is always advisable to check the available flights on the official website of the airport or airline before planning your trip.
Terminal 1
Houses Concourses B and C. It serves as United Airlines' global headquarters hub for domestic and international departures, alongside Star Alliance partner flights.
Check-in counters and airlines
- All Nippon Airways (ANA): Departures and check-in on the upper level (nonstop long-haul flights to Tokyo). Arrivals are handled at Terminal 5.
- Lufthansa: Departures and ticketing on the upper level (service to Frankfurt and Munich). Arrivals at Terminal 5.
- United Airlines / United Express: Primary hub offering over 180 direct domestic and international destinations. Full-service ticketing and bag drop on Level 2. Non-precleared international arrivals deplane at Terminal 5.
Terminal 2
Encompasses Concourses E and F. It accommodates domestic flights, regional United Express departures, and key North American carriers.
Check-in counters and airlines
- Air Canada: Ticketing and departures connecting to major Canadian cities (Toronto, Montreal, Vancouver).
- Alaska Airlines: Check-in and departures to West Coast hubs (Seattle, Portland, Anchorage).
- Denver Air Connection: Departures counter providing regional feeder service.
- JetBlue: Check-in and scheduled service to Boston and New York.
- Southern Airways Express: Service counter handling regional regional routes.
Terminal 3
Features Concourses G, H, K, and L. It operates as the premier Midwest hub for American Airlines and concentrates oneworld alliance flight operations.
Check-in counters and airlines
- Aer Lingus: Check-in and departures to Dublin and Shannon (precleared arrivals).
- American Airlines / American Eagle: Massive hub connecting to over 150 domestic and international routes. Check-in and Priority counters on Level 2. International arrivals without U.S. preclearance disembark at Terminal 5.
- British Airways: Departures and check-in to London Heathrow. International arrivals arrive at Terminal 5.
- Contour Airlines: Check-in counter on departures level for regional routes.
- Iberia: Departures and ticketing for nonstop flights to Madrid Barajas. Arrivals at Terminal 5.
- Japan Airlines (JAL): Check-in and departures to Tokyo Haneda. Arrivals at Terminal 5.
Terminal 5
Contains Concourse M, the centralized U.S. Customs and Border Protection (CBP) inspection facility, and serves foreign international airlines alongside designated domestic carriers.
Check-in counters and airlines
- Aeromexico: Ticketing and nonstop service to Mexico City, Guadalajara, and Monterrey.
- Air France: Departures and arrivals to Paris Charles de Gaulle.
- Air India: Long-haul nonstop flights to Delhi.
- Air Serbia: Transatlantic service to Belgrade.
- Arajet: Nonstop routes to Santo Domingo with Caribbean connections.
- Austrian Airlines: Regular nonstop service to Vienna.
- Avelo Airlines: Point-to-point domestic departures.
- Avianca: Flights to Bogota, San Salvador, and Latin American connections.
- Cathay Pacific: Transpacific long-haul flights to Hong Kong.
- Copa Airlines: Daily flights to Panama City connecting across the Americas.
- Delta Air Lines / Delta Connection: Check-in and departures to core network hubs (Atlanta, Minneapolis, Detroit, Salt Lake City, New York).
- Emirates: Daily widebody service to Dubai.
- Ethiopian Airlines: Long-haul transatlantic flights to Addis Ababa.
- Etihad Airways: Scheduled service to Abu Dhabi.
- EVA Air: Direct connections to Taipei.
- Finnair: Nonstop flights to Helsinki.
- Frontier Airlines: Affordable domestic flights and international routes to Mexico and the Caribbean.
- Icelandair: Flights connecting to Reykjavik and Europe.
- ITA Airways: Nonstop service to Rome Fiumicino.
- KLM: Scheduled service to Amsterdam Schiphol.
- Korean Air: Direct flights to Seoul Incheon.
- LOT Polish Airlines: Nonstop connections to Warsaw and Krakow.
- Qatar Airways: Daily long-haul flights to Doha.
- Royal Jordanian: Direct departures to Amman.
- Scandinavian Airlines (SAS): Service to Copenhagen.
- Southwest Airlines: Domestic departures and seasonal routes to Mexico and Caribbean resort points.
- Sun Country Airlines: Scheduled leisure service to Minneapolis and seasonal holiday destinations.
- Swiss International Air Lines: Nonstop flights to Zurich.
- TAP Air Portugal: Transatlantic service to Lisbon.
- Turkish Airlines: Daily flights to Istanbul.
- Viva: Nonstop service to Guadalajara, Monterrey, Mexico City, and Leon/Guanajuato.
- Volaris: Regular flights to Mexican cities including Guadalajara, Mexico City, Morelia, and Queretaro.
- WestJet: Scheduled flights to Calgary and Western Canada.
Latest updates: September 25, 2026
Issues to resolve with the Airline before or after the trip (Updated 2026)
Many passengers do not know who to contact or how to file a complaint when doubts or problems arise before or after a trip. Below are the key topics that should be checked, coordinated or resolved directly with the airline, ideally well in advance.
Check-in process and documentation (passport validity)
Requirements for minors traveling without their parents
Flight schedule confirmation and flight status (delays, cancellations, rescheduling)
If the airline moves your flight to another day, ask about assistance and compensation (hotel, meals and missed connecting flights)
In addition to a visa, many countries require your passport to remain valid for a minimum period (often 3 to 6 months) beyond your arrival or departure date. It is not always enough for it to be valid until your return. Confirm the requirement with the airline and the embassy of your destination country before checking in online.
Luggage limits, prohibited items and cabin baggage rules in Europe
In July 2026 the EU approved a reform of air passenger rights that guarantees a free personal item (up to 40 x 30 x 15 cm) that fits under the seat. The new rules are expected to apply from 2027, and airlines can still charge for a larger overhead cabin bag. Check the baggage policy of your specific fare to avoid charges at the gate.
Checked baggage fees and excess baggage fees (always read the fine print)
Some countries require a signed, and sometimes notarized, travel consent when a minor travels alone or with only one parent. Requirements depend on the destination and on the child's nationality. Also check whether the airline offers an "Unaccompanied Minor (UM)" service, its age limits and booking deadlines.
Travel coordination for passengers with disabilities, reduced mobility, and pregnant women (by week)
Many airlines ask for a medical certificate from around the 28th week of pregnancy, and restrict travel in the final weeks. Passengers with reduced mobility should request assistance at least 48 hours in advance to ensure ground support.
Claims for cancellations, delays or denied boarding (EU rules)
Under EU Regulation 261/2004, flights covered by the rule that arrive 3 hours or more late, or are cancelled at short notice, may entitle you to compensation of €250 to €600 depending on the distance, unless the airline proves extraordinary circumstances. A reform approved in July 2026 keeps these amounts and the 3-hour threshold, and adds new deadlines for claims; it is expected to apply from 2027. Keep your boarding pass, receipts and all communications with the airline.
Traveling with pets (cabin or cargo hold) and guide dogs
Many airlines allow small pets in the cabin with prior booking and a fee, but spaces per flight are limited, so reserve early.
Guide or assistance dogs: they usually travel free of charge in the cabin, but you should notify the airline at least 48 hours in advance and carry the required documentation (identification, vaccination record and health certificate). Do not leave this until you are at the airport.
Possible changes to travel dates or cancellations by the passenger (check whether your fare allows a full refund or only a voucher)
Guide or assistance dogs: they usually travel free of charge in the cabin, but you should notify the airline at least 48 hours in advance and carry the required documentation (identification, vaccination record and health certificate). Do not leave this until you are at the airport.
Recommendation:
It is always advisable to have travel assistance insurance that covers medical expenses and flight disruptions. External insurance can make it easier to handle cancellations or lost luggage.
Pro Tip: Download your airline's app and check its online check-in window, which is often earlier for international flights. Arrive at the airport 3 hours in advance for international flights. In the Schengen Area, the new Entry/Exit System (EES) registers fingerprints and a facial image of non-EU travelers at the border, which can add time on your first entry.
Pro Tip: Download your airline's app and check its online check-in window, which is often earlier for international flights. Arrive at the airport 3 hours in advance for international flights. In the Schengen Area, the new Entry/Exit System (EES) registers fingerprints and a facial image of non-EU travelers at the border, which can add time on your first entry.
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Departures
Arrivals
Car Hire
Facilities and Lounges
Transportation
Overnight Stay
Parking
Disabled Passengers
FAQs
Arrivals
Car Hire
Facilities and Lounges
Transportation
Overnight Stay
Parking
Disabled Passengers
FAQs
Disabled Passengers
FAQs
FAQs
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