The days of domestic air travelers bringing dogs, cats, rabbits, miniature horses, pot-bellied pigs, snakes, and the occasional peacock on board as emotional-support and therapy animals are done, according to the U.S. Department of Transportation. Service animals such as guide dogs are still permitted under the new regulation, which was announced in December and goes into effect Jan. 11. But critters designated emotional-support animals are no longer classified as service animals, meaning airlines no longer have to permit them on board at no charge. One by one, major U.S. carriers have been announcing their own modified rules, subjecting emotional-support animals to the same pet policies — and fees — that apply to other animals. Here’s a look at which airlines have changed their policies and which ones still allow emotional-support animals to fly for free, with the proper paperwork — for now.
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Alaska Airlines

Emotional support animals permitted at no charge: No, except for reservations booked before Jan. 11 for travel on or before Feb. 28Animals allowed as pets: Domestic dogs and cats; some breeds exceptedPet fee: $100 each way
Full service-animal policyFull pet policy
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Allegiant Airlines

Emotional support animals permitted at no charge: No, except for existing reservations booked before Jan. 11 for travel before May 1 Animals allowed as pets: Domestic dogs and cats Pet fee: $100 per travel segment
Full service-animal policyFull pet policy
American Airlines

Emotional support animals permitted at no charge: No, effective Feb. 1 Animals allowed as pets: Domestic dogs and cats; some breeds excepted Pet fee: $125 each way
Full service-animal policyFull pet policy
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Delta Air Lines

Emotional support animals permitted at no charge: No, effective Jan. 11 Animals allowed as pets: Small dogs, cats, and household birds Pet fee: $125 each way
Full service-animal policyFull pet policy
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Frontier Airlines

Emotional support animals permitted at no charge: No, except for reservations booked before Jan. 11 for travel on or before Jan. 31 Animals allowed as pets: Domesticated dogs, cats, rabbits, guinea pigs, hamsters, and small household birds Pet fee: $99 each way
Full service-animal policyFull pet policy
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JetBlue

Emotional support animals permitted at no charge: No, except for flights booked before Dec. 20, 2020, for travel through February 2021 Animals allowed as pets: Domestic dogs and cats Pet fee: $125 each way
Full service-animal policy Full pet policy
Spirit Airlines

Emotional support animals permitted at no charge: No, effective Jan. 11 Animals allowed as pets: Domestic cats and dogs, small household birds, and small domestic rabbits Pet fee: $110 each way
Full service-animal policy Full pet policy
Southwest Airlines

Emotional support animals permitted at no charge: Yes, with required documentationAnimals allowed: Domestic cats and dogs; no “unusual or exotic species”
Full service-animal policy Full pet policy
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Sun Country Airlines

Emotional support animals permitted at no charge: Yes, with required documentation Animals allowed: Domestic dogs, cats, and miniature horses; others on a case-by-case basis
Full service-animal policy Full pet policy
United Airlines

Emotional support animals permitted at no charge: No, except for reservations booked before Jan. 11 for travel on or before Feb. 28 Animals allowed as pets: Domestic dogs and cats; some breeds excepted Pet fee: $125 each way
Full service-animal policy Full pet policy
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