Need help booking?

Unpublished phone-only deals available

CIO to SEA: distance & flight time

Conception (Teniente Col Carmelo Peralta Airport) → Seattle (Seattle Tacoma International Airport)

6,336 mi
10,197 km · 5,506 nm
12h 53m
estimated nonstop flight time
-4h
time difference · heading northwest
See live CIOSEA fares Phone-only fares on this route — call free

Flight time details

6,336 miles nonstop takes roughly 12h 53m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time set-back when reading arrival times on your ticket.

The two airports

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.

Frequently asked questions

How far is CIO from SEA?

The flight distance from Conception (CIO) to Seattle (SEA) is 6,336 miles (10,197 km, 5,506 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from CIO to SEA?

A nonstop flight takes about 12h 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 Conception and Seattle?

Seattle is 4 hours behind Conception.

What is the cheapest way to fly from CIO to SEA?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CIO–SEA that never appear on search engines, with no booking fees.
Keep exploring:SEA to CIO Airports near CIO Airports near SEA Time difference CIOSEA Distance calculator