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CPR to BOI: distance & flight time
Casper (Casper-Natrona County International Airport) → Boise (Boise Air Terminal/Gowen Field)
493 mi
793 km · 428 nm
1h 32m
estimated nonstop flight time
Same time
time difference · heading west
See live CPR→BOI fares Phone-only fares on this route — call free
Flight time details
493 miles nonstop takes roughly 1h 32m gate to gate, flying west. 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
- CPR — Casper-Natrona County International Airport · Casper, United States
- BOI — Boise Air Terminal/Gowen Field · Boise, 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.
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 BOI
- MUO · Mountain Home Air Force Base40 mi away
- ONO · Ontario Municipal Airport50 mi away
- MYL · McCall Municipal Airport92 mi away
- SUN · Friedman Memorial Airport97 mi away
Frequently asked questions
How far is CPR from BOI?
The flight distance from Casper (CPR) to Boise (BOI) is 493 miles (793 km, 428 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CPR to BOI?
A nonstop flight takes about 1h 32m 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 CPR to BOI?
Nonstop service on CPR–BOI 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 1h 32m nonstop estimate.
What is the cheapest way to fly from CPR to BOI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CPR–BOI that never appear on search engines, with no booking fees.
Why are some CPR to BOI fares phone-only?
Consolidator contracts let us sell certain CPR–BOI 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.