Cheap Flights from Seattle to Ontario
Cheap Seattle-Ontario Flight Tickets
These prices are the lowest available for the specified locations on the Obilet website. Prices may vary depending on the selected date, location, and availability of the flight.
Cheapest Travel on Obilet
:
€ 253.90
The Most Favorable Price
:
Delta Air LinesThe Most Active Airline
:
Delta Air LinesAverage Number of Trips Per Day
:
7Shortest Flight Time
:
2hr 36minDistance
:
1558 KMCheap Flight Tickets from Seattle to Ontario
Delta Air Lines
17 November 2026 - Tuesday
Seattle
Seattle Tacoma Airport
08:25
Ontario
Ontario Airport
11:17
Delta Air Lines
17 November 2026 - Tuesday
Seattle
Seattle Tacoma Airport
14:30
Ontario
Ontario Airport
17:16
Delta Air Lines
17 November 2026 - Tuesday
Seattle
Seattle Tacoma Airport
20:11
Ontario
Ontario Airport
23:00
Delta Air Lines
17 November 2026 - Tuesday
Seattle
Seattle Tacoma Airport
17:59
Ontario
Ontario Airport
23:49
Delta Air Lines
17 November 2026 - Tuesday
Seattle
Seattle Tacoma Airport
05:35
Ontario
Ontario Airport
12:17
Delta Air Lines
17 November 2026 - Tuesday
Seattle
Seattle Tacoma Airport
09:25
Ontario
Ontario Airport
16:24
Delta Air Lines
17 November 2026 - Tuesday
Seattle
Seattle Tacoma Airport
11:30
Ontario
Ontario Airport
16:24
United Airlines
17 November 2026 - Tuesday
Seattle
Seattle Tacoma Airport
10:40
Ontario
Ontario Airport
15:33
United Airlines
17 November 2026 - Tuesday
Seattle
Seattle Tacoma Airport
07:00
Ontario
Ontario Airport
12:29
Last updated: 15 November 2026 00:00
*The prices shown are the lowest ticket prices viewed on Obilet in the last 24 hours. For current ticket prices, please search above.
Get notified about campaigns immediately
Download the Obilet app and take advantage of special campaigns
Estimated Cheapest Seattle - Ontario Flight Tickets by Month
Airlines Operating Flights from Seattle to Ontario
Popular Seattle to Ontario Flights
Last updated: 15 November 2026 00:00
*The prices shown are the lowest ticket prices viewed on Obilet in the last 24 hours. For current ticket prices, please search above.
Seattle and Ontario Airports
Alternative Flights Between Seattle - Ontario
Popular Ontario Hotels
You can choose among various hotel options in Ontario to suit different styles and budgets for a comfortable and enjoyable stay. From boutique hotels in historical areas to modern business hotels, there is a wide range. Choose the most suitable accommodation for your trip and enjoy a relaxing experience.
Frequently Asked Questions
How long does flight take from Seattle - Ontario?
On average, the trip from Seattle - Ontario takes 2 hour 36 minute.
Which airlines organize flights between Seattle - Ontario?
Airline companies that organize flights between Seattle - Ontario: Delta Air Lines, United Airlines, Alaska Airlines
Which airline company organizes the most flights between Seattle - Ontario?
The company that organizes the most flights between Seattle - Ontario: Delta Air Lines
How much is the cheap flight ticket between Seattle - Ontario?
Cheap flight ticket between Seattle - Ontario is € 253.90.
Which airports can I use for Seattle - Ontario flight?
Seattle Tacoma Airport, Boeing Fld King Co Airport, Kenmore Air Harbor Seaplane Base Airport can be used as the departure airport on the Seattle - Ontario flight, and Ontario Airport can also be used as the arrival airport.
