Cheap flights from Chicago to Ontario from £94
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How much do flights to Ontario cost?
Key info about flying to Ontario
Weekly direct flights
Discover the top airlines offering direct flights from Chicago to Ontario in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Mon 31.08 | Tue 01.09 | Wed 02.09 | Thu 03.09 | Fri 04.09 | Sat 05.09 | Sun 06.09 |
|---|---|---|---|---|---|---|---|
| --- | --- | --- | --- | 1 | 1 | 1 | |
| Weekly flights: 3 total | Daily flights: 0.43 average | Most flights: Friday 1 flights |
| Airline | Mon 07.09 | Tue 08.09 | Wed 09.09 | Thu 10.09 | Fri 11.09 | Sat 12.09 | Sun 13.09 |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Weekly flights: 7 total | Daily flights: 1 average | Most flights: Monday 1 flights |
| Airline | Mon 14.09 | Tue 15.09 | Wed 16.09 | Thu 17.09 | Fri 18.09 | Sat 19.09 | Sun 20.09 |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Weekly flights: 7 total | Daily flights: 1 average | Most flights: Monday 1 flights |
| Airline | Mon 21.09 | Tue 22.09 | Wed 23.09 | Thu 24.09 | Fri 25.09 | Sat 26.09 | Sun 27.09 |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Weekly flights: 7 total | Daily flights: 1 average | Most flights: Monday 1 flights |
Check-in for a flight from Chicago to Ontario
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| Frontier Airlines | FFT | F9 | No |
| United Airlines | UAL | UA | No |
| Allegiant Air | AAY | G4 | No |
| Alaska Airlines | ASA | AS | No |
| Porter Airlines | POE | PD | No |
Online check-in is not available for these airlines.
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 | 31°C | 18°C |
| October | 27°C | 14°C |
| November | 22°C | 10°C |
| December | 17°C | 7°C |
14 day forecast
Ontario travel tips
Have botany classes at the Rancho Santa Ana Botanic Garden in Ontario
Pay $10 for admission at the Rancho Santa Ana Botanic Garden in Ontario and explore the largest botanic garden of California. You may want to try botany classes, or stop by for a free bird walk on the first Sunday and third Saturday of each month.
See one of 12 monuments to the pioneer woman in Ontario
When you walk Euclid Avenue in Ontario, come to the Madonna of the Trail, one of 12 monuments around America. It is a dedication to the hardy spirit of the pioneer woman. Take a selfie near the monument as the first photo of this collection.
Feel Latin vibes at El Pescador in Ontario
Relax at El Pescador at 636 N Euclid Avenue in Ontario. They order classic chimichanga or pescador fajitas; the Diablo cocktail with chili and mango will make your evening perfect. If you come on Saturdays and Sundays, you will enjoy live Latin music.
Frequently asked questions
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