The full list with complete with policies and fees is available here on LUEX Magazine.
LARGEST NORTH AMERICAN AIRLINES
Aero Mexico
you could take ski/snowboard equipment for a fee of $40-50 USD.
Boot bag can be taken seperately at no extra charge.
Alaska Air
Ski bags under 292 total linear dimensions fly for free if within your checked baggage allowance.
This varies by route, but is generally $25-200 USD.
Delta
One ski/board bag can be taken for free if within checked baggage allowance.
Frontier Airlines
Varies by route, ticket class and plane.
Confirm fees with the airline when booking.
Fees vary by route/ticket/bag size.
Interjet
50kg baggage allowance!
it’s possible for you to take sports equipment in addition to one other hold baggage item for free.
Jetblue
Ski and snowboard equipment are accepted on flights EXCEPT flights to/from the Dominican Republic.
Suncountry
Skis up to 182 cm long can be taken for free as your checked baggage allowance.
Longer skis incur a charge of $75 USD per flight.
United
Free if within checked baggage allowance, which varies by ticket class and route.
Use the information in the list as a guide, but double check before booking your flight.