Cheap flights from San Francisco to Ontario from £42
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Prices updated:
Not happy with the results? Try some of our useful filters
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
How much do flights to Ontario cost?
Cheapest one-way trip | £42 |
|---|---|
Cheapest round-trip | £85 |
Average round-trip | £150 |
Nonstop flights in July | £42 – £169 |
Most popular airline | Frontier Airlines |
Key info about flying to Ontario
Weekly direct flights
Discover the top airlines offering direct flights from San Francisco to Ontario in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Mon 07.07 | Tue 08.07 | Wed 09.07 | Thu 10.07 | Fri 11.07 | Sat 12.07 | Sun 13.07 |
|---|---|---|---|---|---|---|---|
| 2 | 3 | 3 | 3 | 3 | 3 | 3 | |
| 1 | --- | --- | --- | 1 | --- | 1 | |
| Weekly flights: 23 total | Daily flights: 3.29 average | Most flights: Tuesday 3 flights |
| Airline | Mon 14.07 | Tue 15.07 | Wed 16.07 | Thu 17.07 | Fri 18.07 | Sat 19.07 | Sun 20.07 |
|---|---|---|---|---|---|---|---|
| 3 | 3 | 3 | 3 | 3 | 3 | 3 | |
| 1 | --- | --- | --- | 1 | --- | 1 | |
| Weekly flights: 24 total | Daily flights: 3.43 average | Most flights: Monday 3 flights |
| Airline | Mon 21.07 | Tue 22.07 | Wed 23.07 | Thu 24.07 | Fri 25.07 | Sat 26.07 | Sun 27.07 |
|---|---|---|---|---|---|---|---|
| 3 | 2 | 3 | 3 | 3 | 3 | 3 | |
| 1 | --- | --- | --- | 1 | --- | 1 | |
| Weekly flights: 23 total | Daily flights: 3.29 average | Most flights: Monday 3 flights |
| Airline | Mon 28.07 | Tue 29.07 | Wed 30.07 | Thu 31.07 | Fri 01.08 | Sat 02.08 | Sun 03.08 |
|---|---|---|---|---|---|---|---|
| 3 | 3 | 3 | 3 | 3 | 3 | 3 | |
| 1 | --- | --- | --- | 1 | --- | 1 | |
| Weekly flights: 24 total | Daily flights: 3.43 average | Most flights: Monday 3 flights |
Check-in for a flight from San Francisco to Ontario
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| Frontier Airlines | FFT | F9 | No |
| United Airlines | UAL | UA | No |
| Alaska Airlines | ASA | AS | No |
| Hawaiian Airlines | HAL | HA | 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 | 19°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
Ontario travel tips
Sweets lovers of Ontario love My Delight Cupcakery
Try delicious sweets at My Delight Cupcakery at 1520 N Mountain Avenue in Ontario. All cupcakes are available in two options: mini for $2-3 and classic for $4-5. Make sure to try the Snickerdoodle (Madagascar vanilla cake); vegans will appreciate the Vegan Cookies n Cream.
Go karting at a modern venue in Ontario
Head to the K1 Speed in Ontario to experience karting both for beginners and professionals. You'll ride the track in a state-of-the-art kart in a modern venue, for a totally high-performance experience. Races start at just $20, a great value for money for such emotions!
Rent a car to get around Ontario
If you rent a car, you can see much more in Ontario. All beautiful nature places are located out of the city. You can rent a car at or around the airport, they do not have any extra charge for location. Note it is better to rent a big car (like a SUV) because of the hill areas.
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any origin and destination in the world by plane. Find the cheapest routes and best deals, as well as the best dates to travel.
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