Need help booking?
Unpublished phone-only deals available
SEA to CDT: distance & flight time
Seattle (Seattle Tacoma International Airport) → Castellón de la Plana (Castellón-Costa Azahar Airport)
5,425 mi
8,731 km · 4,714 nm
11h 6m
estimated nonstop flight time
—
time difference · heading northeast
See live SEA→CDT fares Phone-only fares on this route — call free
Flight time details
5,425 miles nonstop takes roughly 11h 6m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- CDT — Castellón-Costa Azahar Airport · Castellón de la Plana, Spain
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 CDT
- VLC · Valencia Airport58 mi away
- TEV · Teruel Airport69 mi away
- REU · Reus Air Base86 mi away
- BCN · Barcelona International Airport129 mi away
Frequently asked questions
How far is SEA from CDT?
The flight distance from Seattle (SEA) to Castellón de la Plana (CDT) is 5,425 miles (8,731 km, 4,714 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to CDT?
A nonstop flight takes about 11h 6m 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 cheapest way to fly from SEA to CDT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–CDT that never appear on search engines, with no booking fees.