GoUpgrades are available beginning 24 hours prior to departure on domestic flights for $50 - $630, depending on length of flight.
Upgrade your flight when you check in online, at the airport or call 800-428-4322/TTY 800-245-2966 or 800-622-1015 (international). Upgrades are sold based on availability.
If you're Preferred, you can still enjoy complimentary upgrades when you travel in North America.
Upgrades are available for purchase on flights for which a customer holds a confirmed, paid ticket. Upgrades are not available for stand-by passengers. Payment of upgrade is due before a seat assignment will be made. GoUpgrades can be purchased up to 24 hours prior to departure. GoUpgrades North America upgrades are available through Reservations and at the airport.