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SUL to BFI: distance & flight time

Sui (Sui Airport) → Seattle (Boeing Field King County International Airport)

7,125 mi
11,467 km · 6,192 nm
14h 26m
estimated nonstop flight time
-12h
time difference · heading north
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Flight time details

7,125 miles nonstop takes roughly 14h 26m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.

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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

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Frequently asked questions

How far is SUL from BFI?

The flight distance from Sui (SUL) to Seattle (BFI) is 7,125 miles (11,467 km, 6,192 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from SUL to BFI?

A nonstop flight takes about 14h 26m 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 Sui and Seattle?

Seattle is 12 hours behind Sui.

What is the cheapest way to fly from SUL to BFI?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SUL–BFI that never appear on search engines, with no booking fees.
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