| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Seattle-Tacoma Ontario | Outbound 12/22/25 direct F93163 02h 36min | Return - | | | ? | $63 | |
| Seattle-Tacoma Ontario | Outbound 11/12/25 1 Stopover (DEN) F93406, F91261 21h 33min | Return 11/16/25 direct F93164 02h 53min | | | $125 found 3 days ago | ||
| Best option Seattle-Tacoma Ontario | Outbound 11/12/25 1 Stopover (DEN) F93406, F91499 07h 52min | Return 11/16/25 direct F93164 02h 53min | | | ? | $130 found 3 days ago | |
| Seattle-Tacoma Ontario | Outbound 11/12/25 1 Stopover (DEN) F93406, F91499 07h 52min | Return 11/16/25 direct F93164 02h 53min | | | $132 found 3 days ago | ||
| Seattle-Tacoma Ontario | Outbound 11/06/25 1 Stopover (LAS) F94830, F92231 26h 40min | Return 11/09/25 1 Stopover (DEN) F91500, F91175 29h 28min | | | $173 |
Stops
- Direct flight
Airline
- Frontier Airlines
Tips and tricks to help you find cheap flights from Seattle Tacoma to Ontario
Favorite airline: Frontier Airlines
The majority of passengers on the route Seattle-Tacoma – Ontario prefer to fly with Frontier Airlines.
Frontier Airlines
58 %
Alaska Airlines
26 %
Delta
12 %
Cheapest weekday: Tuesday
The cheapest flights on this route are operated on Tuesday.
Stopover flights are the cheapest connection
Direct flights on this route are $80.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
02h 34min
19h 50min
$191
$111
Favourite connection: via Las Vegas
Flights with a stopover in Las Vegas are the most popular connection for this route.
Route
bookings
1 stopover Las Vegas - McCarran International Airport, NV
23h 41min, from $162
47 %
1 stopover Denver International Airport, CO
19h 50min, from $111
45 %
1 stopover Salt Lake City International Airport, UT
06h 52min, from $355
6 %
Important flight information
Flight information: Seattle-Tacoma - Ontario
| Cheapest outbound flight from | $62.30 |
|---|---|
| Roundtrip from | $124.64 |
| Flight duration | min. 02:30 / max. 03:20 |
| Return flight duration | min. 02:45/ max. 08:05 |
| Distance | 1542 km |
| Flights per week | 23 |
| Departure airport | Airport Seattle-Tacoma International Airport, WA (SEA) |
| Arrival airport | Airport Ontario-CA (ONT) |
| Destination country | Flights to United States |
Alternative routes to United States
- Flight Seattle-Tacoma - Los Angeles from $65
- Flight Seattle-Tacoma - New York from $196
- Flight Seattle-Tacoma - San Diego from $79
- Flight Seattle-Tacoma - Atlanta from $185
- Flight Seattle-Tacoma - New York from $214
- Flight Seattle-Tacoma - Newark from $196
Alternative flights to Ontario
- Flight San Francisco - Ontario from $137
- Flight Dallas - Ontario from $139
- Flight Baltimore - Ontario from $399
- Flight Sacramento - Ontario from $285
Flight destinations with a similar price
- Flight Ontario - Frankfurt from $468
- Flight Ontario - Nuremberg from $881
Flight destinations with a similar price
- Flight Seattle-Tacoma - Los Angeles from $65
- Flight Seattle-Tacoma - San Diego from $79