United Airlines San Francisco to Ontario Flights

Cheapflightsplus.com will find cheap United Airlines flights from San Francisco to Ontario. Compare airline ticket prices and book air tickets starting from $153 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare San Francisco (CA) — Ontario (CA) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in january: one-way - $153, two-way – $262.
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
10:35 am — 5:04 pm
10:35 am — 12:30 pm UA2669 United Airlines
San Francisco — Portland
2h 15m stop
2:45 pm — 5:04 pm AS3498 Alaska Airlines
Portland — Ontario
6h 29m
including layover
Find flight
from$382
11:00 pm — 12:41 pm
+1 day
11:00 pm — 0:56 am UA2080 United Airlines
San Francisco — Portland
4h 4m stop
5:00 am — 8:32 am UA459 United Airlines
Portland — Denver
2h 43m stop
11:15 am — 12:41 pm UA430 United Airlines
Denver — Ontario
13h 41m
including layover
Find flight
from$349
11:12 am — 8:13 pm
11:12 am — 1:32 pm UA2315 United Airlines
San Francisco — Seattle
4h 8m stop
5:40 pm — 8:13 pm AS1088 Alaska Airlines
Seattle — Ontario
9h 1m
including layover
Find flight
from$379
1:25 pm — 8:13 pm
1:25 pm — 3:45 pm UA593 United Airlines
San Francisco — Seattle
1h 55m stop
5:40 pm — 8:13 pm AS1088 Alaska Airlines
Seattle — Ontario
6h 48m
including layover
Find flight
from$373
4:37 pm — 6:05 pm
4:37 pm — 6:05 pm UA1932 United Airlines
San Francisco — Ontario
1h 28m
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from$155
4:50 pm — 6:19 pm
4:50 pm — 6:19 pm UA251 United Airlines
San Francisco — Ontario
1h 29m
Find flight
from$153
5:14 am — 9:10 pm
5:14 am — 8:56 am UA1362 United Airlines
San Francisco — Denver
10h 48m stop
7:44 pm — 9:10 pm UA1574 United Airlines
Denver — Ontario
15h 56m
including layover
Find flight
from$242
7:05 pm — 12:41 pm
+1 day
7:05 pm — 10:45 pm UA2862 United Airlines
San Francisco — Denver
12h 30m stop
11:15 am — 12:41 pm UA430 United Airlines
Denver — Ontario
17h 36m
including layover
Find flight
from$262
7:10 pm — 8:40 pm
7:10 pm — 8:40 pm UA794 United Airlines
San Francisco — Ontario
1h 30m
Find flight
from$155
8:19 pm — 12:41 pm
+1 day
8:19 pm — 11:59 pm UA650 United Airlines
San Francisco — Denver
11h 16m stop
11:15 am — 12:41 pm UA430 United Airlines
Denver — Ontario
16h 22m
including layover
Find flight
from$262
8:44 am — 9:10 pm
8:44 am — 10:41 am UA616 United Airlines
San Francisco — Portland
4h 44m stop
3:25 pm — 6:57 pm UA2190 United Airlines
Portland — Denver
47m stop
7:44 pm — 9:10 pm UA1574 United Airlines
Denver — Ontario
12h 26m
including layover
Find flight
from$349
8:44 am — 5:04 pm
8:44 am — 10:41 am UA616 United Airlines
San Francisco — Portland
4h 4m stop
2:45 pm — 5:04 pm AS3498 Alaska Airlines
Portland — Ontario
8h 20m
including layover
Find flight
from$388
*Departure and arrival times are local. Last updated on 01/15/2025

Flight Information

There are 3 flights by United Airlines from San Francisco to Ontario every week with departures from San Francisco, Embarkadero, China Basin Heliport. All flights arrive at Ontario Int. and International Heliport.

Departures start from 10:35 am to 8:44 am. Nonstop flight is 1h 28m. The time difference between San Francisco and Ontario is 0h.

  • The fastest flight 1h 28m
  • Average flight time 1h 29m
  • The earliest flight 10:35 am
  • The latest flight 8:44 am
  • Distance 364 ml

The cheapest months for traveling to Ontario are january (from 153 $), february (from 153 $).

The cheapest flight by United Airlines that our users were able to find is $153. This airfare is economy class on one-way UA251 flight for February 1, 2025 leaving San Francisco in San Francisco at 4:50 pm, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 4 airline carriers between San Francisco and Ontario. Please review schedules and prices from the most popular airlines to find the best airfare deals from San Francisco to Ontario.

Nonstop flights

There are 4 direct flights every day from San Francisco. Airlines and fares are below:

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Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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