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RKS to ONT: distance & flight time
Rock Springs (Southwest Wyoming Regional Airport) → Ontario (Ontario International Airport)
698 mi
1,123 km · 607 nm
1h 59m
estimated nonstop flight time
-1h
time difference · heading southwest
See live RKS→ONT fares Phone-only fares on this route — call free
Flight time details
698 miles nonstop takes roughly 1h 59m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- RKS — Southwest Wyoming Regional Airport · Rock Springs, United States
- ONT — Ontario International Airport · Ontario, 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 RKS
- FBR · Fort Bridger Airport71 mi away
- VEL · Vernal Regional Airport83 mi away
- LND · Hunt Field86 mi away
- BPI · Miley Memorial Field87 mi away
Near ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Frequently asked questions
How far is RKS from ONT?
The flight distance from Rock Springs (RKS) to Ontario (ONT) is 698 miles (1,123 km, 607 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RKS to ONT?
A nonstop flight takes about 1h 59m 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 Rock Springs and Ontario?
Ontario is 1 hour behind Rock Springs.
What is the cheapest way to fly from RKS to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RKS–ONT that never appear on search engines, with no booking fees.