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LWS to YRM: distance & flight time
Lewiston (Lewiston Nez Perce County Airport) → Rocky Mountain House (Rocky Mountain House Airport)
429 mi
690 km · 373 nm
1h 24m
estimated nonstop flight time
+1h
time difference · heading north
See live LWS→YRM fares Phone-only fares on this route — call free
Flight time details
429 miles nonstop takes roughly 1h 24m gate to gate, flying north. 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
- LWS — Lewiston Nez Perce County Airport · Lewiston, United States
- YRM — Rocky Mountain House Airport · Rocky Mountain House, Canada
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 LWS
- PUW · Pullman Moscow Regional Airport26 mi away
- ALW · Walla Walla Regional Airport64 mi away
- GEG · Spokane International Airport89 mi away
- LGD · La Grande/Union County Airport89 mi away
Near YRM
- YQF · Red Deer Regional Airport46 mi away
- YEG · Edmonton International Airport82 mi away
- YBA · Banff Airport89 mi away
- YXD · Edmonton City Centre (Blatchford Field) Airport98 mi away
Frequently asked questions
How far is LWS from YRM?
The flight distance from Lewiston (LWS) to Rocky Mountain House (YRM) is 429 miles (690 km, 373 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LWS to YRM?
A nonstop flight takes about 1h 24m 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 Lewiston and Rocky Mountain House?
Rocky Mountain House is 1 hour ahead of Lewiston.
What is the cheapest way to fly from LWS to YRM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LWS–YRM that never appear on search engines, with no booking fees.