It took less than 7 minutes for our customer to complete the latest ONT to SEA booking.
The ONT to SEA flight will be operated by Alaska Airlines with a Boeing 737-900.
Flight time from ONT to SEA for this particular option is 150 minutes.
Our flights from ONT to SEA
There are currently 19 direct flights between ONT to SEA each week, operated by 3 airlines.
You can catch a flight from ONT to SEA on any day of the week.
These airlines operate direct flights from ONT to SEA: American Airlines, Alaska Airlines, United Airlines.
The most common aircraft type flying between ONT to SEA is Canadair Regional Jet.
The day with the most flights from ONT to SEA is Friday.
Our cheapest flight from ONT to SEA was in July at just $142.