| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option Seattle-Tacoma Ontario | Outbound 04/29/25 direct AS1088 02h 34min | Return 05/08/25 direct F93164 03h 03min |  Alaska Airlines |  | ? | $178 | |
| Seattle-Tacoma Ontario | Outbound 04/29/25 1 Stopover (DEN) F93406, F91499 17h 59min | Return 05/08/25 direct F93164 03h 03min |  Frontier Airlines |  | $187 | ||
| Seattle-Tacoma Ontario | Outbound 04/29/25 direct AS1254 02h 38min | Return 05/08/25 direct F93164 03h 03min | Alaska Airlines |  | ? | $191 | |
| Seattle-Tacoma Ontario | Outbound 04/29/25 direct AS1254 02h 38min | Return 05/08/25 direct F93164 03h 03min | Alaska Airlines |  | $197 | ||
| Seattle-Tacoma Ontario | Outbound 04/29/25 1 Stopover (DEN) F93406, F91499 17h 59min | Return 05/08/25 direct F93164 03h 03min | Frontier Airlines |  | $198 | ||
| Seattle-Tacoma Ontario | Outbound 04/29/25 direct AS1088 02h 34min | Return 05/08/25 direct AS1402 02h 36min | Alaska Airlines |  | ? | $214 | |
| Seattle-Tacoma Ontario | Outbound 07/25/25 direct HA6814 02h 38min | Return 08/17/25 direct F93164 02h 50min |  Hawaiian Airlines | | $229 | ||
| Seattle-Tacoma Ontario | Outbound 07/25/25 direct AS1254 02h 38min | Return 08/17/25 direct AS1087 02h 39min | Alaska Airlines | | ? | $233 | |
| Seattle-Tacoma Ontario | Outbound 07/25/25 direct AS1254 02h 38min | Return 08/17/25 direct AS1091 02h 42min | Alaska Airlines | | ? | $238 | |
| Seattle-Tacoma Ontario | Outbound 09/19/25 direct AS1254 02h 50min | Return 09/29/25 direct HA6290 02h 43min | Alaska Airlines | | $248 |
Stops
- Direct flight
Airline
- Alaska Airlines
- Frontier Airlines
- United Airlines
- Hawaiian 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
| Roundtrip from | $177.40 |
|---|---|
| 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 - San Francisco from $147
- Flight Seattle-Tacoma - Honolulu from $355
- Flight Seattle-Tacoma - Las Vegas from $99
- Flight Seattle-Tacoma - Los Angeles from $134
- Flight Seattle-Tacoma - New York from $232
- Flight Seattle-Tacoma - Anchorage from $358
- Flight Seattle-Tacoma - Kahului from $410
- Flight Seattle-Tacoma - Kona from $413
- Flight Seattle-Tacoma - Orlando from $207
- Flight Seattle-Tacoma - Miami from $177
Alternative flights to Ontario
- Flight San Francisco - Ontario from $94
- Flight Dallas - Ontario from $97
- Flight Baltimore - Ontario from $302
- Flight San Jose - Ontario from $241
- Flight Sacramento - Ontario from $243
Flight destinations with a similar price
- Flight Ontario - Munich from $848
- Flight Ontario - Frankfurt from $692
- Flight Ontario - Guadalajara from $323
- Flight Ontario - Cancun from $421
Flight destinations with a similar price
- Flight Seattle-Tacoma - Miami from $177
- Flight Seattle-Tacoma - Atlanta from $185
- Flight Seattle-Tacoma - Tampa from $187
- Flight Seattle-Tacoma - Dallas from $173
- Flight Seattle-Tacoma - Spokane from $178
- Flight Seattle-Tacoma - Pasco from $178
- Flight Seattle-Tacoma - San Jose from $174
- Flight Seattle-Tacoma - Washington-DC from $179
- Flight Seattle-Tacoma - Washington DC from $179
- Flight Seattle-Tacoma - Reno from $188