Need help booking?
Unpublished phone-only deals available
PHL to KLS: distance & flight time
Philadelphia (Philadelphia International Airport) → Kelso (Southwest Washington Regional Airport)
2,410 mi
3,878 km · 2,094 nm
5h 11m
estimated nonstop flight time
-3h
time difference · heading northwest
See live PHL→KLS fares Phone-only fares on this route — call free
Flight time details
2,410 miles nonstop takes roughly 5h 11m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- PHL — Philadelphia International Airport · Philadelphia, United States
- 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 PHL
- BBX · Wings Field18 mi away
- PNE · Northeast Philadelphia Airport19 mi away
- LLY · South Jersey Regional Airport22 mi away
- NXX · Willow Grove Naval Air Station/Joint Reserve Base23 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 PHL from KLS?
The flight distance from Philadelphia (PHL) to Kelso (KLS) is 2,410 miles (3,878 km, 2,094 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHL to KLS?
A nonstop flight takes about 5h 11m 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 Philadelphia and Kelso?
Kelso is 3 hours behind Philadelphia.
What is the cheapest way to fly from PHL to KLS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHL–KLS that never appear on search engines, with no booking fees.