Need help booking?
Unpublished phone-only deals available
ACH to KLS: distance & flight time
Altenrhein (St Gallen Altenrhein Airport) → Kelso (Southwest Washington Regional Airport)
5,360 mi
8,627 km · 4,658 nm
10h 59m
estimated nonstop flight time
-9h
time difference · heading northwest
See live ACH→KLS fares Phone-only fares on this route — call free
Flight time details
5,360 miles nonstop takes roughly 10h 59m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- ACH — St Gallen Altenrhein Airport · Altenrhein, Switzerland
- KLS — Southwest Washington Regional Airport · Kelso, 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 ACH
- HOH · Hohenems-Dornbirn Airport9 mi away
- FDH · Friedrichshafen Airport13 mi away
- ZRH · Zürich Airport47 mi away
- FMM · Memmingen Allgau Airport47 mi away
Near KLS
- PDX · Portland International Airport39 mi away
- CLS · Chehalis Centralia Airport39 mi away
- HIO · Portland Hillsboro Airport40 mi away
- TTD · Portland Troutdale Airport46 mi away
Frequently asked questions
How far is ACH from KLS?
The flight distance from Altenrhein (ACH) to Kelso (KLS) is 5,360 miles (8,627 km, 4,658 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ACH to KLS?
A nonstop flight takes about 10h 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 Altenrhein and Kelso?
Kelso is 9 hours behind Altenrhein.
What is the cheapest way to fly from ACH to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ACH–KLS that never appear on search engines, with no booking fees.