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SEA to CSX: distance & flight time
Seattle (Seattle Tacoma International Airport) → Changcha (Changsha Huanghua International Airport)
6,176 mi
9,940 km · 5,367 nm
12h 35m
estimated nonstop flight time
+15h
time difference · heading northwest
See live SEA→CSX fares Phone-only fares on this route — call free
Flight time details
6,176 miles nonstop takes roughly 12h 35m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- CSX — Changsha Huanghua International Airport · Changcha, China
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 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
Near CSX
- YIC · Yichun Mingyueshan Airport71 mi away
- HNY · Hengyang Nanyue Airport96 mi away
- CGD · Changde Airport108 mi away
- JGS · Jinggangshan Airport131 mi away
Frequently asked questions
How far is SEA from CSX?
The flight distance from Seattle (SEA) to Changcha (CSX) is 6,176 miles (9,940 km, 5,367 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to CSX?
A nonstop flight takes about 12h 35m 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 Seattle and Changcha?
Changcha is 15 hours ahead of Seattle.
What is the cheapest way to fly from SEA to CSX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–CSX that never appear on search engines, with no booking fees.