Flight Route
Ontario to Seattle
ONT → BFI
Airlines
1 operating direct
Direct Flights
Available
Origin
Ontario International Airport
Destination
King County International Airport - Boeing Field
Connection Options
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+4 moreTransit countries:
Direct
Connection
Route Options
Direct
Direct
1 Stop
via SEA
via PDX
via SJC
via LAS
via RFD
via SDF
2 Stops
via PDX + SEA
via BUR + SEA
via PDX + PWT
via BUR + VNY
via BUR + PDX
via SMF + SEA
via SMF + PDX
via SNA + SEA
via SNA + PDX
via SJC + SEA
Airlines Flying Direct
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Price Trends
Average flight prices from ONT to BFI by month
Flight Delayed or Cancelled?
You may be entitled to up to €600 in compensation for flight disruptions on your ONT to BFI route.
- Delayed by 3+ hours
- Cancelled flight
- Denied boarding
- Claims valid up to 3 years back
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BFIONTDirect
Other Routes from ONT
Arriving at BFI
King County International Airport - Boeing Field