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SEA to CND: distance & flight time
Seattle (Seattle Tacoma International Airport) → Constanta (Mihail Kogălniceanu International Airport)
5,849 mi
9,414 km · 5,083 nm
11h 56m
estimated nonstop flight time
+10h
time difference · heading north
See live SEA→CND fares Phone-only fares on this route — call free
Flight time details
5,849 miles nonstop takes roughly 11h 56m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- CND — Mihail Kogălniceanu International Airport · Constanta, Romania
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 CND
- TCE · Tulcea Airport50 mi away
- VAR · Varna Airport85 mi away
- BBU · Băneasa International Airport118 mi away
- OTP · Henri Coandă International Airport119 mi away
Frequently asked questions
How far is SEA from CND?
The flight distance from Seattle (SEA) to Constanta (CND) is 5,849 miles (9,414 km, 5,083 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to CND?
A nonstop flight takes about 11h 56m 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 Constanta?
Constanta is 10 hours ahead of Seattle.
What is the cheapest way to fly from SEA to CND?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–CND that never appear on search engines, with no booking fees.