Distance From Seattle/Tacoma International Airport to Porto Airport (SEA - OPO Distance)
The flight distance from Seattle/Tacoma International Airport (SEA) to Porto Airport (OPO) is 5087 miles. This is equivalent to 8187 kilometers or 4418 nautical miles. The distance shown below is the straight line distance (may be called as flying or air distance) or direct flight distance between airports.
8187 kilometers is the distance from Seattle/Tacoma International Airport, United States to Porto Airport, Portugal.
Flight Duration between Seattle, United States and Porto, Portugal
Estimated flight time from Seattle/Tacoma International Airport, Seattle, United States to Porto Airport, Porto, Portugal is 10 hours 10 minutes under avarage conditions. The flight time calculator assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/hr or 434 knots. Your actual flying time may vary depending on wind speeds or weather conditions.
Time Difference Between the Airports • SEA - OPO
Time difference between Seattle (United States) and Porto (Portugal) is 7 Hours.
Current local time in Seattle is 2025-07-30, 11:09:04 MDT and time in Porto is 2025-07-30, 18:09:04 WEST.
Porto time is 7 Hours ahead of Seattle.
Seattle/Tacoma International Airport to Porto Airport Flight Route Map - SEA to OPO Flight Path
Location of Seattle/Tacoma International Airport & Porto Airport is given below.Click the map to view Seattle to Porto nonstop flight path and travel direction.


































Click to see flight route on Google Map between Seattle, United States and Porto, Portugal. .
Nonstop flight route between Seattle, United States and Porto, Portugal.
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City: | Seattle |
Country: | United States ![]() |
IATA Code: | SEA |
ICAO Code: | KSEA |
GPS Coordinates: | Latitude: N 47° 26' 56.4'' Longitude: W 122° 18' 33.5'' |
Current time: | 2025-07-30, 11:09:04 MDT |
Current weather: |
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City: | Porto |
Country: | Portugal ![]() |
IATA Code: | OPO |
ICAO Code: | LPPR |
GPS Coordinates: | Latitude: N 41° 14' 53.2'' Longitude: W 8° 40' 53'' |
Current time: | 2025-07-30, 18:09:04 WEST |
Current weather: |
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Flights: |
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