Cheap Flights from San Francisco, CA to Ontario, CA from $39

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On Cheapflightsplus.com you will find 4 direct and 69 connecting flights from San Francisco to Ontario. You can compare airfare deals from 5 airlines and multiple travel sites from $39, book and save on cheap plane tickets and last minute offers. Also check out SFO-ONT flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip San Francisco to Ontario Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $39 (one-way), $67 (round-trip).

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Best Flights from San Francisco to Ontario Today

Take a look at the list of non stop flights and flights with layovers from San Francisco to Ontario with the lowest price of $39. The fastest direct flight takes 1h 21m and the fastest connecting – 3h 54m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $39 Find flight	05:15 San Francisco San Francisco	06:36 Ontario Ontario Int.	1h 21m	Frontier Airlines	F92678
from $153 Find flight	16:50 San Francisco San Francisco	18:19 Ontario Ontario Int.	1h 29m	United Airlines	UA251
from $48 Find flight	15:15 San Francisco San Francisco	19:09 Ontario Ontario Int.	3h 54m layover 1h 5m - Las Vegas	Frontier Airlines	F93020 F92231
from $54 Find flight	11:53 San Francisco San Francisco	23:47 Ontario Ontario Int.	11h 54m layover 6h 41m - Denver	Frontier Airlines	F91230 F91499
from $57 Find flight	22:59 San Francisco San Francisco	07:06+1 день Ontario Ontario Int.	8h 7m layover 5h 18m - Las Vegas	Frontier Airlines	F91850 F91283
from $58 Find flight	11:43 San Francisco San Francisco	15:58 Ontario Ontario Int.	4h 15m layover 0h 55m - Phoenix	Frontier Airlines	F92638 F91625
from $68 Find flight	10:53 San Francisco San Francisco	15:02 Ontario Ontario Int.	4h 9m layover 1h 16m - Las Vegas	Frontier Airlines	F94158 F94205
from $72 Find flight	19:42 San Francisco San Francisco	06:30+1 день Ontario Ontario Int.	10h 48m layover 5h 46m - Denver	Frontier Airlines	F93440 F91261
from $82 Find flight	11:53 San Francisco San Francisco	10:27+1 день Ontario Ontario Int.	22h 34m layover 17h 20m - Denver	Frontier Airlines	F91230 F91261
from $118 Find flight	08:20 San Francisco San Francisco	17:04 Ontario Ontario Int.	8h 44m layover 4h 34m - Portland	Alaska Airlines	AS835 AS3498
from $120 Find flight	16:12 San Francisco San Francisco	11:05+1 день Ontario Ontario Int.	18h 53m layover 14h 43m - Portland	Alaska Airlines	AS337 AS3312
from $133 Find flight	14:43 San Francisco San Francisco	20:13 Ontario Ontario Int.	5h 30m layover 0h 41m - Seattle	Alaska Airlines	AS1059 AS1088
from $135 Find flight	16:12 San Francisco San Francisco	23:58 Ontario Ontario Int.	7h 46m layover 3h 45m - Portland	Alaska Airlines	AS337 AS1066
from $139 Find flight	11:20 San Francisco San Francisco	20:13 Ontario Ontario Int.	8h 53m layover 4h 2m - Seattle	Alaska Airlines	AS1225 AS1088
from $138 Find flight	08:20 San Francisco San Francisco	17:04 Ontario Ontario Int.	8h 44m layover 1h 1m - Seattle 2h 10m - Portland	Alaska Airlines	AS1123 AS1039 AS3498
from $138 Find flight	07:00 San Francisco San Francisco	17:04 Ontario Ontario Int.	10h 4m layover 2h 21m - Seattle 2h 10m - Portland	Alaska Airlines	AS1013 AS1039 AS3498

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on January 15, 2025

Flight Schedule San Francisco (California) to Ontario (California)

Full flight schedule will help you in detecting at what time planes fly from San Francisco to Ontario. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
05:15 — 06:36	05:15 — 06:36 F92678 Frontier Airlines San Francisco — Ontario	1h 21m	Find flight from$39
16:37 — 18:05	16:37 — 18:05 UA1932 United Airlines San Francisco — Ontario	1h 28m	Find flight from$155
16:50 — 18:19	16:50 — 18:19 UA251 United Airlines San Francisco — Ontario	1h 29m	Find flight from$153
19:10 — 20:40	19:10 — 20:40 UA794 United Airlines San Francisco — Ontario	1h 30m	Find flight from$155
05:14 — 21:10	05:14 — 08:56 UA1362 United Airlines San Francisco — Denver 10h 48m stop 19:44 — 21:10 UA1574 United Airlines Denver — Ontario	15h 56m including layover	Find flight from$242
08:20 — 17:04	08:00 — 09:51 AS835 Alaska Airlines San Francisco — Portland 4h 34m stop 14:45 — 17:04 AS3498 Alaska Airlines Portland — Ontario	8h 44m including layover	Find flight from$118
09:00 — 23:58	09:00 — 10:50 AS138 Alaska Airlines San Francisco — Portland 10h 54m stop 21:44 — 23:58 AS1066 Alaska Airlines Portland — Ontario	14h 58m including layover	Find flight from$141
09:00 — 16:59	09:00 — 10:50 AS138 Alaska Airlines San Francisco — Portland 3h 55m stop 14:45 — 16:59 AS2074 Alaska Airlines Portland — Ontario	7h 59m including layover	Find flight from$176
10:53 — 15:02	10:53 — 12:34 F94158 Frontier Airlines San Francisco — Las Vegas 1h 16m stop 18:04 — 19:08 F94205 Frontier Airlines Las Vegas — Ontario	4h 9m including layover	Find flight from$68
10:53 — 07:11 +1 day	10:53 — 12:32 F94158 Frontier Airlines San Francisco — Las Vegas 17h 30m stop 07:30 — 08:33 F94757 Frontier Airlines Las Vegas — Ontario	20h 18m including layover	Find flight from$73
11:43 — 15:58	11:43 — 14:50 F92638 Frontier Airlines San Francisco — Phoenix 55m stop 15:45 — 15:58 F91625 Frontier Airlines Phoenix — Ontario	4h 15m including layover	Find flight from$58
11:53 — 23:47	06:00 — 09:42 F91230 Frontier Airlines San Francisco — Denver 6h 41m stop 22:38 — 00:04 F91499 Frontier Airlines Denver — Ontario	11h 54m including layover	Find flight from$54
12:28 — 17:06	09:34 — 12:29 F93394 Frontier Airlines San Francisco — Salt Lake City 59m stop 17:15 — 18:06 F93343 Frontier Airlines Salt Lake City — Ontario	4h 38m including layover	Find flight from$170
14:07 — 10:34 +1 day	14:07 — 15:57 AS127 Alaska Airlines San Francisco — Portland 16h 16m stop 08:13 — 10:34 AS3312 Alaska Airlines Portland — Ontario	20h 27m including layover	Find flight from$139
14:43 — 20:13	14:43 — 16:59 AS1059 Alaska Airlines San Francisco — Seattle 41m stop 17:40 — 20:13 AS1088 Alaska Airlines Seattle — Ontario	5h 30m including layover	Find flight from$133
15:15 — 19:09	17:35 — 19:10 F93020 Frontier Airlines San Francisco — Las Vegas 1h 5m stop 13:58 — 15:08 F92231 Frontier Airlines Las Vegas — Ontario	3h 54m including layover	Find flight from$48
16:12 — 11:05 +1 day	16:12 — 17:59 AS337 Alaska Airlines San Francisco — Portland 14h 43m stop 08:42 — 11:05 AS3312 Alaska Airlines Portland — Ontario	18h 53m including layover	Find flight from$120
16:12 — 23:58	16:12 — 17:59 AS337 Alaska Airlines San Francisco — Portland 3h 45m stop 21:44 — 23:58 AS1066 Alaska Airlines Portland — Ontario	7h 46m including layover	Find flight from$135
17:40 — 10:38 +1 day	17:40 — 19:57 AS1189 Alaska Airlines San Francisco — Seattle 12h 3m stop 08:00 — 10:38 AS1254 Alaska Airlines Seattle — Ontario	16h 58m including layover	Find flight from$160
17:50 — 11:02 +1 day	16:48 — 19:03 AS971 Alaska Airlines San Francisco — Seattle 12h 25m stop 08:00 — 10:38 AS1254 Alaska Airlines Seattle — Ontario	17h 12m including layover	Find flight from$158
18:43 — 10:34 +1 day	18:43 — 20:29 AS1169 Alaska Airlines San Francisco — Portland 11h 44m stop 08:13 — 10:34 AS3312 Alaska Airlines Portland — Ontario	15h 51m including layover	Find flight from$139
18:59 — 23:58	18:59 — 20:46 AS1169 Alaska Airlines San Francisco — Portland 58m stop 21:44 — 23:58 AS1066 Alaska Airlines Portland — Ontario	4h 59m including layover	Find flight from$207
19:42 — 06:30 +1 day	21:14 — 00:42 F93440 Frontier Airlines San Francisco — Denver 5h 46m stop 08:45 — 10:11 F91261 Frontier Airlines Denver — Ontario	10h 48m including layover	Find flight from$72
20:19 — 12:41 +1 day	20:19 — 23:59 UA650 United Airlines San Francisco — Denver 11h 16m stop 11:15 — 12:41 UA430 United Airlines Denver — Ontario	16h 22m including layover	Find flight from$262
22:59 — 07:11 +1 day	22:59 — 00:42 F91850 Frontier Airlines San Francisco — Las Vegas 5h 23m stop 06:05 — 07:11 F94757 Frontier Airlines Las Vegas — Ontario	8h 12m including layover	Find flight from$54
22:59 — 07:06 +1 day	22:59 — 00:42 F91850 Frontier Airlines San Francisco — Las Vegas 5h 18m stop 10:00 — 11:07 F91283 Frontier Airlines Las Vegas — Ontario	8h 7m including layover	Find flight from$57
06:00 — 18:12	06:00 — 07:36 AS3310 Alaska Airlines San Francisco — San Diego 1h 59m stop 09:35 — 12:44 AS1259 Alaska Airlines San Diego — Seattle 2h 56m stop 15:40 — 18:12 AS1086 Alaska Airlines Seattle — Ontario	12h 12m including layover	Find flight from$159
07:00 — 17:04	07:00 — 09:15 AS1013 Alaska Airlines San Francisco — Seattle 2h 21m stop 11:36 — 12:35 AS1039 Alaska Airlines Seattle — Portland 2h 10m stop 14:45 — 17:04 AS3498 Alaska Airlines Portland — Ontario	10h 4m including layover	Find flight from$138
07:00 — 17:04	07:00 — 09:15 AS1013 Alaska Airlines San Francisco — Seattle 45m stop 10:00 — 11:00 AS2213 Alaska Airlines Seattle — Portland 3h 45m stop 14:45 — 17:04 AS3498 Alaska Airlines Portland — Ontario	10h 4m including layover	Find flight from$139
08:20 — 17:04	08:20 — 10:35 AS1123 Alaska Airlines San Francisco — Seattle 1h 1m stop 11:36 — 12:35 AS1039 Alaska Airlines Seattle — Portland 2h 10m stop 14:45 — 17:04 AS3498 Alaska Airlines Portland — Ontario	8h 44m including layover	Find flight from$138

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on January 15, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from San Francisco to Ontario depends on and how to choose the most interesting flight option for you.

Distance between San Francisco and Ontario is 585 miles. Time difference between the cities is 0h. Airplanes depart 05:14 to 23:05 from 3 San Francisco airports and arrive 05:14 to 23:05 to 2 Ontario airports. Average flight time is 1h 29m.

The fastest flight 1h 21m
Average flight time 1h 29m
The earliest flight 05:14
The latest flight 23:05
Distance 364 ml

The cheapest months to travel to Ontario are february (from 39 $), november (from 53 $), december (from 56 $).

The most expensive months are january (from 57 $), december (from 56 $), november (from 53 $).

What is the lowest airfare San Francisco to Ontario?

The cheapest plane ticket found by our users is $39. This airfare is for economy class on one-way F92678 flight by Frontier Airlines for February 21, 2025 which leaves San Francisco in San Francisco at 05:15 am and arrives at Ontario Ontario Int. at 06:36.

Economy class

$39

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Business class

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First class

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Popular Airlines on the Route

The flight San Francisco — Ontario is served by 5 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by Alaska Airlines - 44 departures per week at the price of from $ 118 . And the most expensive tickets are offered by Aeromexico airline - from $ 1977.

Direct flights

There are 4 nonstop flights on the route. The fastest direct flight is F92678 by Frontier Airlines takes 1h 21m and the cheapest is F92678 by Frontier Airlines for $39.

F9 - Frontier Airlines

from $39

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UA - United Airlines

from $153

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Connecting Flights

There are 69 flights with layovers on the route. The fastest connecting flight is F93020 by Frontier Airlines takes 3h 54m and the cheapest is F92678 by Frontier Airlines for $48.

AS - Alaska Airlines

from $118

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F9 - Frontier Airlines

from $48

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UA - United Airlines

from $242

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HA - Hawaiian Airlines

from $286

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AM - Aeromexico

from $323

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Airports

You can fly from San Francisco to Ontario from 3 airports (San Francisco, Embarkadero, China Basin Heliport).

San Francisco airports

San Francisco-SFO

from $39
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Embarkadero-EMB

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China Basin Heliport-JCC

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Ontario airports

Ontario Int.-ONT

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International Heliport-JIO

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Airplanes

There are flights to Ontario from San Francisco by 5 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from San Francisco

You may also consider searching for discounted plane tickets to some other popular places from San Francisco within United States.

San Francisco — Albuquerque

from $62

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San Francisco — New York

from $70

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San Francisco — Las Vegas

from $57

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San Francisco — Denver

from $79

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San Francisco — Seattle

from $54

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San Francisco — San Diego

from $67

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San Francisco — Nashville

from $55

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San Francisco — Los Angeles

from $62

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San Francisco — New Orleans

from $60

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San Francisco — Chicago

from $69

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Top International Destinations from San Francisco

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

San Francisco — London

from $72

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San Francisco — Dublin

from $65

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San Francisco — Manchester

from $61

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San Francisco — Mumbai

from $63

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San Francisco — Paris

from $58

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San Francisco — Zurich

from $65

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San Francisco — Glasgow

from $72

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San Francisco — Rome

from $57

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San Francisco — Dubai

from $79

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San Francisco — Birmingham

from $71

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How to book a plane 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 flight ticket.
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.
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