Need help booking?
Unpublished phone-only deals available
IPT to SEA: distance & flight time
Williamsport (Williamsport Regional Airport) → Seattle (Seattle Tacoma International Airport)
2,250 mi
3,621 km · 1,955 nm
4h 53m
estimated nonstop flight time
-3h
time difference · heading northwest
See live IPT→SEA fares Phone-only fares on this route — call free
Flight time details
2,250 miles nonstop takes roughly 4h 53m 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
- IPT — Williamsport Regional Airport · Williamsport, United States
- SEA — Seattle Tacoma International Airport · Seattle, 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 IPT
- LHV · William T. Piper Memorial Airport27 mi away
- HZL · Hazleton Municipal Airport51 mi away
- SCE · University Park Airport55 mi away
- WBW · Wilkes Barre Wyoming Valley Airport56 mi away
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is IPT from SEA?
The flight distance from Williamsport (IPT) to Seattle (SEA) is 2,250 miles (3,621 km, 1,955 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IPT to SEA?
A nonstop flight takes about 4h 53m 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 Williamsport and Seattle?
Seattle is 3 hours behind Williamsport.
What is the cheapest way to fly from IPT to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IPT–SEA that never appear on search engines, with no booking fees.