Cheap flights from Seattle, WA to Ontario, CA
Flights starting at £45. Choose between Alaska Airlines, United Airlines, or Frontier Airlines to find the best price.
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Tips to know when travelling to Ontario
Cheapest one-way trip | £45 |
---|---|
Cheapest round-trip | £88 |
Average round-trip | £225 |
Nonstop flights in November | £88 – £674 |
Most popular airline | Alaska Airlines |
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Weekly direct flights
Discover the top airlines offering direct flights from Seattle 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 11.11 - Sun 17.11
Airline | Mon 11.11 | Tue 12.11 | Wed 13.11 | Thu 14.11 | Fri 15.11 | Sat 16.11 | Sun 17.11 |
---|---|---|---|---|---|---|---|
5 | 3 | 3 | 5 | 4 | 3 | 5 | |
1 | --- | --- | 1 | 1 | 1 | 1 |
Weekly direct flights for Mon 18.11 - Sun 24.11
Airline | Mon 18.11 | Tue 19.11 | Wed 20.11 | Thu 21.11 | Fri 22.11 | Sat 23.11 | Sun 24.11 |
---|---|---|---|---|---|---|---|
5 | 3 | 3 | 4 | 4 | 5 | 5 | |
1 | --- | --- | 1 | 1 | 1 | 1 |
Weekly direct flights for Mon 25.11 - Sun 01.12
Airline | Mon 25.11 | Tue 26.11 | Wed 27.11 | Thu 28.11 | Fri 29.11 | Sat 30.11 | Sun 01.12 |
---|---|---|---|---|---|---|---|
5 | 5 | 4 | 3 | 4 | 4 | 3 | |
1 | 1 | 1 | 1 | 1 | 1 | 1 |
Weekly direct flights for Mon 02.12 - Sun 08.12
Airline | Mon 02.12 | Tue 03.12 | Wed 04.12 | Thu 05.12 | Fri 06.12 | Sat 07.12 | Sun 08.12 |
---|---|---|---|---|---|---|---|
4 | 3 | 3 | 4 | 4 | 3 | 4 | |
1 | --- | 1 | 1 | --- | --- | 1 |
Check-in for a flight from Seattle to Ontario
Name | Carrier code | IATA Code | Passport needed during booking | |
---|---|---|---|---|
Alaska Airlines | ASA | AS | No | |
United Airlines | UAL | UA | Yes | |
Frontier Airlines | FFT | F9 | No |
Online check-in is not available for these airlines.
Ontario travel tips
1) Try the best spaghetti in Ontario at Vince's Spaghetti | Family-run Vince's Spaghetti at 1206 W Holt Boulevard in Ontario is a must for you if you have a good appetite. According to the legend, Frank Cucci's uncle started this restaurant as a six-stool open-air French dip stand in 1945. He tempted passersby with great flavours. Now, spaghetti with meat sauce is a locals' favourite Italian meal here. |
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2) Check out wines around Ontario | Your visit to Ontario will not be completed without delicious wines from the neighbourhood. Check out the Mountain Vista Winery and Vineyards and The Wine Tailor. Both offer romantic nights out and wine tastings six-nights a week. The red Petite Sirah and sweet Port Styled are a must-try. |
3) Experience camping in Ontario's landscapes | Ontario's nature is perfect for campings. For example, the Fairplex RV Park is a great option if you need seclusion with nature and modern conveniences. Prices start at $25 per night here. |
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 | 12°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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