What airlines, hotels, and carriers currently require — and where your letter still protects you.
Before you book a flight from Illinois, know the current rules: ESAs are treated as pets in the cabin, while task-trained psychiatric service dogs retain access.
O’Hare and Midway put Chicago among the world’s busiest air markets — both treat ESAs as pets in the cabin.
Since the U.S. Department of Transportation’s 2021 rule change, airlines may treat emotional support animals as pets: expect a pet fee, an under-seat carrier for small animals, and cargo restrictions for larger ones. Policies differ by airline, so check yours before booking out of Illinois.
Task-trained PSDs keep their cabin access at no charge. Airlines may require the DOT Service Animal Transportation Form attesting to training and behavior — most ask for it 48 hours ahead. The dog must fit within your foot space and remain under control.
On the ground, the ADA governs — and it covers task-trained service animals, not ESAs, so hotels and carriers may apply pet policies. Where the letter keeps its force is lodging that counts as housing: leases, sublets, and many longer rentals at your destination beyond Illinois.
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Yes, but as a pet: expect a fee and an under-seat carrier requirement. The DOT removed the airline obligation to treat ESAs as service animals in 2021.
Task-trained psychiatric service dogs still fly free in the cabin. Airlines may require the U.S. DOT Service Animal Transportation Form, typically submitted 48 hours before departure.
Hotels are public accommodations under the ADA, which covers service animals — not ESAs — so pet policies and fees can apply. Many Illinois hotels are pet-friendly; confirm before booking.
Yes, but narrowly: incomplete DOT paperwork, disruptive behavior, or space constraints are the recognized grounds.
They do; the DOT framework is domestic, so international trips add the arrival country’s import and vaccination requirements.
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