Aviasales.ge will find you the cheapest airfare for Seattle – Ontario by comparing the ticket prices to Ontario using 45 agencies, five booking systems, and 728 airlines. Where exactly you buy your tickets for Seattle – Ontario is up to you.

Direct flight for from Seattle to Ontario

The easiest way to to get to your destination is a direct flight. Direct flights for from Seattle to Ontario are offered by:

• Delta Air Lines (daily DL4027)
• Alaska Airlines (6 days per week, flight AS1254)
• Frontier Airlines (4 days per week, flight F93163)
• Hawaiian Airlines (4 days per week, flight HA6667)

Ontario is served by 1 airport: Ontario International Airport. Direct flights for Seattle – Ontario are operated by:

• United Airlines, Alaska Airlines, Southwest Airlines, Frontier Airlines from Seattle-Tacoma International Airport to Ontario International Airport

Flight with layover for the route from Seattle to Ontario

A flight with a layover on the route Seattle – Ontario will allow you to make your trip more interesting. The layover could be in:

• San Jose (flight WN1534 Southwest Airlines)
• Las Vegas (flight WN2850 Southwest Airlines)
• Sacramento (flight WN4468 Southwest Airlines)

This is a great chance to get to know these cities. Layovers are usually at least six hours.

Aviasales.ge suggests buying tickets for Seattle – Ontario in advance in order to choose the conditions for your flight that best suit your preferences and budget.