Cheap flights from Portland, OR to Ontario, CA
Flights starting at £26. Choose between Frontier Airlines, Alaska Airlines, or United Airlines to find the best price.
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Tips to know when travelling to Ontario
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Weekly direct flights
Discover the top airlines offering direct flights from Portland to Ontario in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Mon 27.05 - Sun 02.06
| Airline | Mon 27.05 | Tue 28.05 | Wed 29.05 | Thu 30.05 | Fri 31.05 | Sat 01.06 | Sun 02.06 |
|---|---|---|---|---|---|---|---|
| 3 | 2 | 2 | 3 | 3 | 1 | 3 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Weekly direct flights for Mon 03.06 - Sun 09.06
| Airline | Mon 03.06 | Tue 04.06 | Wed 05.06 | Thu 06.06 | Fri 07.06 | Sat 08.06 | Sun 09.06 |
|---|---|---|---|---|---|---|---|
| 3 | 2 | 2 | 3 | 3 | 2 | 3 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Weekly direct flights for Mon 10.06 - Sun 16.06
| Airline | Mon 10.06 | Tue 11.06 | Wed 12.06 | Thu 13.06 | Fri 14.06 | Sat 15.06 | Sun 16.06 |
|---|---|---|---|---|---|---|---|
| 3 | 2 | 2 | 3 | 3 | 3 | 3 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Weekly direct flights for Mon 17.06 - Sun 23.06
| Airline | Mon 17.06 | Tue 18.06 | Wed 19.06 | Thu 20.06 | Fri 21.06 | Sat 22.06 | Sun 23.06 |
|---|---|---|---|---|---|---|---|
| 3 | 3 | 3 | 3 | 3 | 3 | 3 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Check-in for a flight from Portland to Ontario
| Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
|---|---|---|---|---|
| Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
| Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
| United Airlines | UAL | UA | Yes | No |
Ontario travel tips
1) Watch how cooks prepare your food before it comes at your table at Benihana in Ontario | There is no time to be bored at Benihana at 3760 Inland Empire Boulevard in Ontario. After making an order, watch how talented chefs make your food right before your eyes. The menu is also great; choose from sushi rolls, steaks, agedashi tofu (for vegans), and more. |
|---|---|
2) Have fun at the LOL Kids Club like a child in Ontario | If at least once you had regretted that all ball pits and things to climb on are only for children, the LOL Kids Club in Ontario is a perfect place for you. All the tons of ball pits, things to climb on, jump off of, swing on, or run around are for adults here! Have fun! |
3) Enjoy artisan pasta at Rossa's Cucina in Ontario | If you love Italian food, Rossa's Cucina at 425 N Vineyard Avenue in Ontario is a must-visit. They use fresh, wild-caught fish, artisan pasta, and other top quality ingredients. The wine menu is also excellent; ask the waiter to recommend you a glass of suitable wine to your dish. |
Weather in Ontario
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 18°C | 7°C |
| February | 18°C | 7°C |
| March | 20°C | 8°C |
| April | 23°C | 10°C |
| May | 25°C | 13°C |
| June | 29°C | 16°C |
| July | 33°C | 19°C |
| August | 33°C | 20°C |
| September | 32°C | 18°C |
| October | 27°C | 15°C |
| November | 22°C | 10°C |
| December | 17°C | 7°C |
14 day forecast
Frequently asked questions
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Airports near Portland
- Seattle–Tacoma International
- Portland International
- Eugene
- Kenmore Air Harbor Seaplane Base
- Roberts Field
- Yakima Air Terminal