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SEA to AVR: distance & flight time
Seattle (Seattle Tacoma International Airport) → Alverca (Alverca Air Base)
5,200 mi
8,369 km · 4,519 nm
10h 40m
estimated nonstop flight time
+8h
time difference · heading northeast
See live SEA→AVR fares Phone-only fares on this route — call free
Flight time details
5,200 miles nonstop takes roughly 10h 40m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, United States
- AVR — Alverca Air Base · Alverca, Portugal
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 AVR
- LIS · Humberto Delgado Airport (Lisbon Portela Airport)9 mi away
- CAT · Cascais Airport21 mi away
- QLR · Monte Real Air Base66 mi away
- BYJ · Beja Airport / Airbase81 mi away
Frequently asked questions
How far is SEA from AVR?
The flight distance from Seattle (SEA) to Alverca (AVR) is 5,200 miles (8,369 km, 4,519 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to AVR?
A nonstop flight takes about 10h 40m 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 Alverca?
Alverca is 8 hours ahead of Seattle.
What is the cheapest way to fly from SEA to AVR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–AVR that never appear on search engines, with no booking fees.