Route guide

San Juan to Jacksonville (SJU-JAX): Nonstop Upgrade & Award Space

JetBlue Airways and Frontier Airlines fly nonstop between San Juan (SJU) and Jacksonville (JAX), roughly 14 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every SJU to JAX departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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14
Nonstop flights a week
1,289 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every SJU to JAX departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for San Juan to Jacksonville to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each SJU to JAX departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See SJU to JAX on the interactive route map, with schedules, connections, and route statistics.

Airlines flying San Juan to Jacksonville nonstop

Carriers operating SJU to JAX nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • JetBlue Airways
  • Frontier Airlines
See SJU to JAX on the interactive map →

Frequently asked questions about SJU to JAX

How far is Jacksonville from San Juan?
SJU to JAX covers about 1,289 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from SJU to JAX?
JetBlue Airways and Frontier Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on both of them.
How many flights a week are there from SJU to JAX?
About 14 nonstop flights a week run between San Juan and Jacksonville in the current schedule, operated by JetBlue Airways and Frontier Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on SJU to JAX?
Open the SJU to JAX calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the San Juan to Jacksonville route, and 2LNR will notify you when space opens. It's free to start.

Never miss SJU to JAX upgrade or award space

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