Need help booking?
Unpublished phone-only deals available
SEA to DCM: distance & flight time
Seattle (Seattle Tacoma International Airport) → Castres (Castres-Mazamet Airport)
5,302 mi
8,533 km · 4,608 nm
10h 52m
estimated nonstop flight time
+9h
time difference · heading northeast
See live SEA→DCM fares Phone-only fares on this route — call free
Flight time details
5,302 miles nonstop takes roughly 10h 52m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- DCM — Castres-Mazamet Airport · Castres, France
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 DCM
- CCF · Carcassonne Airport24 mi away
- LBI · Albi-Le Séquestre Airport26 mi away
- TLS · Toulouse-Blagnac Airport47 mi away
- XMW · Montauban Airport56 mi away
Frequently asked questions
How far is SEA from DCM?
The flight distance from Seattle (SEA) to Castres (DCM) is 5,302 miles (8,533 km, 4,608 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to DCM?
A nonstop flight takes about 10h 52m 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 Castres?
Castres is 9 hours ahead of Seattle.
What is the cheapest way to fly from SEA to DCM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–DCM that never appear on search engines, with no booking fees.