Complete Information of Allegiant Air at Portsmouth International Airport
| Airport Name | Portsmouth International Airport |
| Airport Address | 36 Airline Ave, Portsmouth, NH 03801, United States |
| Arrivals & Departures Terminal | Terminal 1 |
| Airport Code | PSM |
| Working Hours | 24 hours |
| Contact Number | +16034336536 |
| Official Website | allegiantair.com |
| facebook.com/Allegiant | |
| twitter.com/Allegiant | |
| instaram.com/allegiant | |
| Youtube | youtube.com/@Allegiant |
List of Worldwide Allegiant Air Terminals
Services Offered by Allegiant Air at PSM Airport Terminal
- Flight Ticket Booking
- Ok to Board
- Flight Ticket Cancellation
- Airport Lounges
- Visa Services
- Baggage Allowance
- Online Check-in
- Airport Transfers
- Meet and Greet
- Duty-Free Allowance
- Immigration Services
- In-Flight Wi-Fi
- Business Class
- In-Flight Meals
- Missing Luggage Assistance
- Flight/Visa Information
- Miles & Loyalty Services
- Economy Class
- Delayed Flight Assistance
- Airport Facilities
- In-Flight Entertainment
- Airport Wi-Fi
- Valet Parking
- Visa on Arrival