Tuffclassified
Check with seller
JetBlue support How to upgrade for free on JetBluename-changepolicy
Description: To potentially upgrade for free on JetBlue, consider joining the TrueBlue loyalty program, earning Mosaic status 1-877-348-9092 [US] or 1-877-348-9092 , being flexible with your travel dates and seating preferences, and checking for upgrades at the airport or by contacting JetBlue support.
https://tuffclassified.com/jetblue-support-how-to-upgrade-for-free-on-jetbluename-changepolicy_2609435