Need help booking?
Unpublished phone-only deals available
RKS to UGN: distance & flight time
Rock Springs (Southwest Wyoming Regional Airport) → Chicago (Waukegan National Airport)
1,087 mi
1,749 km · 945 nm
2h 50m
estimated nonstop flight time
+1h
time difference · heading east
See live RKS→UGN fares Phone-only fares on this route — call free
Flight time details
1,087 miles nonstop takes roughly 2h 50m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- RKS — Southwest Wyoming Regional Airport · Rock Springs, United States
- UGN — Waukegan National Airport · Chicago, 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 UGN
- ORD · Chicago O'Hare International Airport31 mi away
- ENW · Kenosha Regional Airport12 mi away
- PWK · Chicago Executive Airport21 mi away
- RAC · John H Batten Airport24 mi away
Frequently asked questions
How far is RKS from UGN?
The flight distance from Rock Springs (RKS) to Chicago (UGN) is 1,087 miles (1,749 km, 945 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RKS to UGN?
A nonstop flight takes about 2h 50m 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 RKS to UGN?
Nonstop service on RKS–UGN 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 2h 50m nonstop estimate.
What is the time difference between Rock Springs and Chicago?
Chicago is 1 hour ahead of Rock Springs.
What is the cheapest way to fly from RKS to UGN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RKS–UGN that never appear on search engines, with no booking fees.
Why are some RKS to UGN fares phone-only?
Consolidator contracts let us sell certain RKS–UGN 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.