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DCM to SEA: distance & flight time
Castres (Castres-Mazamet Airport) → Seattle (Seattle Tacoma International Airport)
5,302 mi
8,533 km · 4,608 nm
10h 52m
estimated nonstop flight time
-9h
time difference · heading northwest
See live DCM→SEA fares Phone-only fares on this route — call free
Flight time details
5,302 miles nonstop takes roughly 10h 52m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- DCM — Castres-Mazamet Airport · Castres, France
- 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 DCM
- CCF · Carcassonne Airport24 mi away
- LBI · Albi-Le Séquestre Airport26 mi away
- TLS · Toulouse-Blagnac Airport47 mi away
- XMW · Montauban 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 DCM from SEA?
The flight distance from Castres (DCM) to Seattle (SEA) 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 DCM to SEA?
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 Castres and Seattle?
Seattle is 9 hours behind Castres.
What is the cheapest way to fly from DCM to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DCM–SEA that never appear on search engines, with no booking fees.