How to get the best price from Seattle to Ontario?

Depending on when you travel and how far in advance you book, fares between Seattle and Ontario can differ a lot.

Pick a travel date to see today’s available fares.

Search engines like Jetcost can highlight price changes in just seconds. For example, some users find better prices by flying on one day of the week over another — try several searches to spot the cheapest day.

Is there more than one airport in Seattle or Ontario?

Even short-haul routes can benefit from considering secondary airports. It may open up more flight times or cheaper fares.

• Airports in Seattle: Seattle has 2 airports - Boeing Field, Lake Union.
• Airports in Ontario: Ontario is the only airport in operation.

Airports with more daily flights offer more flexibility if plans change or delays occur. If you’re flexible, consider airports near Ontario as well.

Find flights from Seattle to Ontario that suit your schedule

Use Jetcost to sort and filter results based on your preferred flight time, number of stops, price range, or airline. View deals from the best airlines and travel agencies.

Other popular destinations

Interested in United States? These cities are also in demand: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Connecting flights can be cheaper but often mean longer layovers. You can easily select either direct or connecting flights with a single click using the filters.