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UST to JAX: distance & flight time
St. Augustine Airport (Northeast Florida Regional Airport) → Jacksonville (Jacksonville International Airport)
42 mi
68 km · 37 nm
35m
estimated nonstop flight time
Same time
time difference · heading northwest
See live UST→JAX fares Phone-only fares on this route — call free
Flight time details
42 miles nonstop takes roughly 35m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- UST — Northeast Florida Regional Airport · St. Augustine Airport, United States
- JAX — Jacksonville International Airport · Jacksonville, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
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Frequently asked questions
How far is UST from JAX?
The flight distance from St. Augustine Airport (UST) to Jacksonville (JAX) is 42 miles (68 km, 37 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UST to JAX?
A nonstop flight takes about 35m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from UST to JAX?
Nonstop service on UST–JAX depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 35m nonstop estimate.
What is the cheapest way to fly from UST to JAX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UST–JAX that never appear on search engines, with no booking fees.
Why are some UST to JAX fares phone-only?
Consolidator contracts let us sell certain UST–JAX tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.