List of Airlines at (PVD) airport

Air Canada (Tel +1 888 247 2262 - since 3 hours before the flight until 60 minutes prior)
Allegiant Air (Tel +1 702 505 8888 - since 2 hours before the flight until 45 minutes prior)
American Airlines (Tel +1 800 433 7300 - since 4:00 am until 30 minutes prior to the flight)
Azores Airlines (Tel +1 508 677 0555 - since 4 hours before the flight until 1 hour prior)
Delta Air Lines (Tel +1 800 221 1212 - since 2 hours before the flight until the last flight)
Frontier Airlines (Tel +1 801 401 9000 - since 2 hours before the flight until 45 minutes prior)
JetBlue (Tel +1 800 538 2583 - since 2 hours before the flight until 20 minutes prior)
Regional Sky (Tel +1 877 359 7595 - since 2 hours before the flight until 30 minutes prior)
Southwest Airlines (Tel +1 800 435 9792 - from 4:00 am)
United Airlines (Tel +1 800 864 8331 - since 2 hours before the flight until the last)

Many passengers do not know who to consult or make a claim to some doubts that arise before or after traveling, or any inconvenience that may occur. Listed below are topics that need to be consulted, coordinated or resolved directly with the airline.   Check in procedure   Documentation and visa required   Baggage weight limits, restricted and prohibited Items   Baggage and excess billing rates   Requirements for minors traveling alone or without parents   Special passengers needing prior coordination with the airline: people with disabilities, reduced mobility and pregnant women   Lost, delayed or damaged baggage reclaim   Possible flight's changes of date or cancellations   Confirmation of flight schedules (departures or arrivals)   Flight status report (for possible delays, cancellations, rescheduling)   In case your airline reschedules your flight, coordinate with the company for possible compensation, due to extra nights accomodation, food, flight connection lost, etc. Remember that it is always advisable to have a traveler's assistance insurance, in case the airline does not respond to any inconvenience that might happen (baggage lost or damaged, cancellation or flight delay, etc.)