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CPR to SJU: distance & flight time
Casper (Casper-Natrona County International Airport) → San Juan (Luis Munoz Marin International Airport)
2,897 mi
4,662 km · 2,517 nm
6h 9m
estimated nonstop flight time
+2h
time difference · heading southeast
See live CPR→SJU fares Phone-only fares on this route — call free
Flight time details
2,897 miles nonstop takes roughly 6h 9m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- CPR — Casper-Natrona County International Airport · Casper, United States
- SJU — Luis Munoz Marin International Airport · San Juan, Puerto Rico
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.
Near CPR
- RWL · Rawlins Municipal Airport/Harvey Field85 mi away
- RIW · Riverton Regional Airport101 mi away
- SAA · Shively Field103 mi away
- WRL · Worland Municipal Airport104 mi away
Near SJU
- SIG · Fernando Luis Ribas Dominicci Airport6 mi away
- FAJ · Diego Jimenez Torres Airport24 mi away
- NRR · José Aponte de la Torre Airport27 mi away
- VQS · Vieques Airport44 mi away
Frequently asked questions
How far is CPR from SJU?
The flight distance from Casper (CPR) to San Juan (SJU) is 2,897 miles (4,662 km, 2,517 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CPR to SJU?
A nonstop flight takes about 6h 9m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Casper and San Juan?
San Juan is 2 hours ahead of Casper.
What is the cheapest way to fly from CPR to SJU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CPR–SJU that never appear on search engines, with no booking fees.