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RIW to STL: distance & flight time
Riverton WY (Riverton Regional Airport) → St. Louis (St Louis Lambert International Airport)
988 mi
1,590 km · 859 nm
2h 37m
estimated nonstop flight time
+1h
time difference · heading east
See live RIW→STL fares Phone-only fares on this route — call free
Flight time details
988 miles nonstop takes roughly 2h 37m 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
- RIW — Riverton Regional Airport · Riverton WY, United States
- STL — St Louis Lambert International Airport · St. Louis, 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 RIW
- LND · Hunt Field22 mi away
- WRL · Worland Municipal Airport67 mi away
- PWY · Ralph Wenz Field71 mi away
- BPI · Miley Memorial Field90 mi away
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Frequently asked questions
How far is RIW from STL?
The flight distance from Riverton WY (RIW) to St. Louis (STL) is 988 miles (1,590 km, 859 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RIW to STL?
A nonstop flight takes about 2h 37m 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 Riverton WY and St. Louis?
St. Louis is 1 hour ahead of Riverton WY.
What is the cheapest way to fly from RIW to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RIW–STL that never appear on search engines, with no booking fees.