Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Brownsville to Fresno as you normally would.
The cheapest flight price from Brownsville to Fresno is $284. On average you can expect to pay $403. The most popular route, (Brownsville South Padre Is. Intl - Fresno Airterminal), can usually be booked for $734.
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Brownsville South Padre Is. Intl Airport to Fresno Airterminal Airport flight would often be abbreviated as a BRO to FAT flight.