The current rules for flying and staying with your animal — and where your Missouri letter still counts.
Before you book a flight from Missouri, know the current rules: ESAs are treated as pets in the cabin, while task-trained psychiatric service dogs retain access.
St. Louis Lambert and Kansas City International split the state’s air traffic.
The DOT’s 2021 rule change ended mandatory ESA accommodation in the air. Practically, that means pet fees, an under-seat carrier for small animals, and cargo rules for big ones — with details varying by carrier, so confirm before flying out of Missouri.
A psychiatric service dog still flies in the cabin free of charge. Carriers can require the DOT Service Animal Transportation Form — an attestation of training and behavior, usually due 48 hours before departure — and the dog must stay within your foot space, under control.
Trains, buses, and hotels follow the ADA, which covers service animals rather than ESAs — so pet rules can apply. Your ESA letter still matters where you’ll live: short-term rentals, sublets, and leases at your Missouri destination remain covered by the Fair Housing Act.
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Only under your airline’s standard pet policy — usually a carrier under the seat and a pet fee. Since 2021, airlines aren’t required to treat ESAs as service animals.
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.
Book under your airline’s pet policy: reserve the pet spot early (cabins cap the number), confirm carrier dimensions, and budget for the pet fee each way.
Yes, but narrowly: incomplete DOT paperwork, disruptive behavior, or space constraints are the recognized grounds.
Yes — destination-country animal import rules apply on top of airline policy, and several countries require advance permits or quarantine.
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