$68 Cheap flight deals from Seattle (SEA) to Ontario (BOI)
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This Weekend's Flight Deals from Seattle to Ontario
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $68 One Way, $99 Round Trip from Seattle to Ontario
Prices starting at $99 for return flights and $68 for one-way flights to Ontario were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Ontario economy flight packages
Hyatt Place Boise/Downtown
Dec 25 - Dec 28
Seattle (SEA) to Boise (BOI)
Reviewed on Jul 23, 2025
Boise Guest House
Dec 25 - Dec 28
Seattle (SEA) to Boise (BOI)
Reviewed on Oct 2, 2024
Hilton Garden Inn Boise Downtown
Dec 25 - Dec 28
Seattle (SEA) to Boise (BOI)
Reviewed on May 29, 2025
More About Flying To Ontario from Seattle
Route Information for Flights from Seattle to Ontario
Origin Airport IATA Code | SEA |
|---|---|
Destination Airport IATA Code | BOI |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Seattle to Ontario
Orbitz can provide you with the greatest deals on a wide range of Seattle to Ontario flights. Orbitz offers guaranteed low prices and offers you the convenience of cutting-edge mobile tools thus providing you with your best travel experience ever.
Mobile Apps for Seattle to Ontario Flights
You can use our mobile app to find the cheapest prices for flights from Seattle to Ontario. With this cutting-edge technology, you can check up on your flight’s status, gate number and luggage claim handling, and reserve exclusive deals on top hotels at short notice.
Loyalty Rewarded
For travelers who regularly book Seattle to Ontario flights, our frequent flyer program offers even more low-cost air tickets. You will be able to store your miles in your personal Orbitz account and add them with ease to your future reservations.
Trouble-Free Traveling With Flight Alerts
Orbitz will not only provide you with the assistance that you require when purchasing flights from Seattle to Ontario but will ensure that you remain fully updated on any flight delays, changes or disruptions by providing free alerts. Your Seattle to Ontario flights alerts can be sent directly to your phone or email. You can also opt for these alerts to be sent to your family and friends so that everyone is kept informed of your travel plans.
Budget Flying Made Simple
Finding cheap flights from Seattle to Ontario is easy with Orbitz. You can pick and choose airlines for your international flights to create inexpensive yet convenient travel arrangements.
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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.