The current rules for flying and staying with your animal — and where your Maine letter still counts.
Pack smart: the rules for animals in the air are stricter than the rules at home, and Maine flyers should know both before booking.
Portland International Jetport and Bangor International handle most Maine departures.
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 Maine.
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.
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 Maine.
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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.
Hotels are public accommodations under the ADA, which covers service animals — not ESAs — so pet policies and fees can apply. Many Maine hotels are pet-friendly; confirm before booking.
It remains essential for housing at your destination — short-term rentals and leases — and some carriers and hosts voluntarily accommodate documented ESAs, but it doesn’t create a legal right to fly.
Only in limited cases — missing DOT forms, a dog that’s out of control or too large for your foot space, or specific long-haul requirements.
Yes — destination-country animal import rules apply on top of airline policy, and several countries require advance permits or quarantine.
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