Distance From Boeing Field King County International Airport to Mariscal Sucre International Airport, BFI - UIO Distance

The distance from Boeing Field King County International Airport (BFI) to Mariscal Sucre International Airport (UIO) is 4216 miles or 6785 kilometers or 3662 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Seattle ( United States ) to Quito ( Ecuador )?

A one-way nonstop (direct) flight between Seattle and Quito takes around 9 hours 41 minutes.

Estimated flight time from Boeing Field King County International Airport, Seattle, United States to Mariscal Sucre International Airport, Quito, Ecuador is 9 hours 41 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • BFI - UIO

Kilometers		6785 km
Statute Miles		4216 miles
Nautical Miles		3662 nm
Avg. Time of Flight		9 hours 41 minutes

Boeing Field King County International Airport to Mariscal Sucre International Airport Flight Route Map - BFI to UIO Flight Path

Location of Boeing Field King County International Airport & Mariscal Sucre International Airport is given below.
Click the map to view Seattle to Quito nonstop flight path and travel direction.

Click to see flight route on Google Map between Seattle, United States and Quito, Ecuador. .

Nonstop flight route between Seattle, United States and Quito, Ecuador.

Time Difference Between the Airports • BFI - UIO

Time difference between Seattle (United States) and Quito (Ecuador) is 1 Hours.
Quito time is 1 Hours ahead of Seattle.

Location	Local Time
Seattle (United States)	2026-03-20, 17:41:49 MDT
Quito (Ecuador)	2026-03-20, 18:41:49 -05

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Boeing Field King County International Airport (BFI / KBFI) Seattle, United States

Destination

Mariscal Sucre International Airport (UIO / SEQM) Quito, Ecuador