Flights from Seattle to Ontario from $22
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Airfare Deals Seattle to Ontario
On HolidayPrice.com you will find 0 direct and 0 connecting flights from Seattle to Ontario at a price of from $22. You can compare airfare deals from airlines and multiple travel sites, book and save on cheap plane tickets and last minute offers. Also check out SEA - ONT flight schedule to find best flight time, convenient departure and arrival airports.
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The cost of airline tickets from Seattle to Ontario (United States) and back without transfers can be found with the help of the calendar. Specify the search parameters: one way or round-trip, payment currency, click on the month/day you need and we will search for flights to Ontario.
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Cheap flights from SeattleCheap flights to Ontario
Airline tickets to United States
One way flight from Seattle to Ontario
Below are the prices of tickets for direct one-way flights from Seattle to Ontario. The cheapest flight from Seattle to Ontario starts from $22 – the departure date for this flight is 05 January 2026.
01.12.2025
Monday
from $73
Clickavia
Economy
Found 2025-10-29
1 Stopover
22 hours 12 min
Find Flights
23.12.2025
Tuesday
from $93
Flightnetwork
Economy
Found yesterday
Nonstop
2 hours 46 min
Find Flights
Round trip from Seattle to Ontario
You can buy a round-trip ticket from Seattle to Ontario (United States) and back using the table below. The best offer starts from $434, the flight dates are: there on 29 November 2025 year and back on 29 November 2025 year.
Frontier Airlines F9 4830
Night flight
Departure
09.11.25
03:17, Su
1 Stopover
Trip 4 days
Return
13.11.25
03:48, Th
Not found promotions and sales.
Flight Schedule Seattle to Ontario 2025
The current flight schedule for the route from Seattle to Ontario for today, tomorrow and the next few days. This schedule will help you decide on the time of departure and arrival, the airline, the flight number and the day of the week.
More than 6 flights every day, from 2hours 40min. Local departure and arrival times are indicated.
*Schedule is indicated only for direct scheduled flights and low-cost airlines.
Flight Information
Flying to Ontario from Seattle takes 02:35 minutes (excluding transfers). The distance between Seattle and Ontario is 966 miles (1555 kilometers). Planes depart from Seattle between and . The fastest flight from the company with flight number . Flies for just minutes with departure from and arrival in .
Average flight time
02:35 min
Distance
966 mi
The earliest flight
The latest flight
The fastest flight
Airlines
Direct flight
There are 0 airlines that fly directly from Seattle to Ontario. The most popular company carrying out non-stop flights is .
*Flight number
Flights with Transfers
Flights with transfers from Seattle to Ontario can be bought from 0 airlines:
*Transit cities
Airports
Airports serving the air communication between Seattle and Ontario. You can fly to Ontario from Seattle airports. Planes arrive at airport in Ontario.
Seattle airports:
Ontario airports:
*Distance from the airport to the city center
Aircraft
You can fly from Seattle to Ontario on board of airlines that utilize aircraft models.
Connecting cities
The list of cities on transfer flights to Ontario from Seattle. The best options are to fly through: .
Cheap airline tickets from Seattle to United States
Here is a list of flights from Seattle to United States purchased on HolidayPrice.com in the past 48 hours. If you find an interesting offer for cheap tickets, do not delay your purchase, prices change every 15 minutes.
Seattle - New York UA 1695
United Airlines Boeing 737-800
08:30
Seattle-Tacoma
in a way 4 hours 50 min
Direct
13:20
Newark Liberty
Flights
from $92 15 December 2025
from $92 15 December 2025
Seattle - Los Angeles DL 628
Delta Air Lines Boeing 737-800
06:45
Seattle-Tacoma
in a way 2 hours 15 min
Direct
09:00
Los Angeles
Flights
from $21 05 January 2026
from $21 05 January 2026
Seattle - Miami AA 1471
American Airlines Airbus A321
07:04
Seattle-Tacoma
in a way 5 hours 46 min
Direct
12:50
Miami
Flights
from $73 14 November 2025
from $73 14 November 2025
Seattle - Chicago AA 1540
American Airlines Boeing 737-800
17:00
Seattle-Tacoma
in a way 3 hours 43 min
Direct
20:43
O'Hare
Flights
from $62 05 November 2025
from $62 05 November 2025
Seattle - San Francisco UA 2398
United Airlines Boeing 737-900
02:15
Seattle-Tacoma
in a way 1 hours 45 min
Direct
04:00
San Francisco
Flights
from $39 21 January 2026
from $39 21 January 2026
Flights from United States to Ontario
Here are the cheapest flight bookings from United States to Ontario made by users of our website. If you didn’t find your flight destination, use the search bar at the top of the page.
No directions were found for the specified parameters!Tips for buying a ticket
Seattle – Ontario – Seattle round-trip route are always cheaper than tickets purchased there and back separately.
To start searching for tickets, Specify dates.