Need help booking?
Unpublished phone-only deals available
BOI to YCG: distance & flight time
Boise (Boise Air Terminal/Gowen Field) → Castlegar (Castlegar/West Kootenay Regional Airport)
402 mi
646 km · 349 nm
1h 20m
estimated nonstop flight time
-1h
time difference · heading north
See live BOI→YCG fares Phone-only fares on this route — call free
Flight time details
402 miles nonstop takes roughly 1h 20m gate to gate, flying north. 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
- BOI — Boise Air Terminal/Gowen Field · Boise, United States
- YCG — Castlegar/West Kootenay Regional Airport · Castlegar, 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 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
Near YCG
- YZZ · Trail Airport17 mi away
- ZGF · Grand Forks Airport41 mi away
- YXC · Cranbrook/Canadian Rockies International Airport86 mi away
- YYF · Penticton Airport89 mi away
Frequently asked questions
How far is BOI from YCG?
The flight distance from Boise (BOI) to Castlegar (YCG) is 402 miles (646 km, 349 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BOI to YCG?
A nonstop flight takes about 1h 20m 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 BOI to YCG?
Nonstop service on BOI–YCG 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 20m nonstop estimate.
What is the time difference between Boise and Castlegar?
Castlegar is 1 hour behind Boise.
What is the cheapest way to fly from BOI to YCG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BOI–YCG that never appear on search engines, with no booking fees.
Why are some BOI to YCG fares phone-only?
Consolidator contracts let us sell certain BOI–YCG 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.