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

One way Round trip

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Return flight: San Francisco – Ontario

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On Cheapflightsplus.com you will find 3 direct and 70 connecting flights from Ontario to San Francisco. You can compare airfare deals from 4 airlines and multiple travel sites from $39, book and save on cheap plane tickets and last minute offers. Also check out ONT-SFO flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Ontario to San Francisco 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 Ontario to San Francisco Today

Take a look at the list of non stop flights and flights with layovers from Ontario to San Francisco with the lowest price of $39. The fastest direct flight takes 1h 26m and the fastest connecting – 4h 8m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $39 Find flight	07:36 Ontario Ontario Int.	09:02 San Francisco San Francisco	1h 26m	Frontier Airlines	F92677
from $155 Find flight	19:15 Ontario Ontario Int.	20:44 San Francisco San Francisco	1h 29m	United Airlines	UA1757
from $155 Find flight	15:30 Ontario Ontario Int.	17:14 San Francisco San Francisco	1h 44m	United Airlines	UA5660
from $57 Find flight	15:52 Ontario Ontario Int.	07:16+1 день San Francisco San Francisco	15h 24m layover 12h 25m - Las Vegas	Frontier Airlines	F92232 F93801
from $68 Find flight	08:04 Ontario Ontario Int.	14:23 San Francisco San Francisco	6h 19m layover 3h 14m - Las Vegas	Frontier Airlines	F91358 F93019
from $72 Find flight	20:27 Ontario Ontario Int.	08:13+1 день San Francisco San Francisco	11h 46m layover 6h 32m - Denver	Frontier Airlines	F92908 F91093
from $77 Find flight	20:35 Ontario Ontario Int.	00:59+1 день San Francisco San Francisco	4h 24m layover 1h 26m - Las Vegas	Frontier Airlines	F94206 F94157
from $113 Find flight	11:45 Ontario Ontario Int.	16:54 San Francisco San Francisco	5h 9m layover 0h 47m - Portland	Alaska Airlines	AS3312 AS836
from $118 Find flight	17:44 Ontario Ontario Int.	12:52+1 день San Francisco San Francisco	19h 8m layover 14h 50m - Portland	Alaska Airlines	AS3498 AS128
from $139 Find flight	06:00 Ontario Ontario Int.	15:35 San Francisco San Francisco	9h 35m layover 4h 29m - Seattle	Alaska Airlines	AS1091 AS1304
from $141 Find flight	07:00 Ontario Ontario Int.	22:43 San Francisco San Francisco	15h 43m layover 11h 29m - Portland	Alaska Airlines	AS1058 AS2038
from $118 Find flight	06:00 Ontario Ontario Int.	16:31 San Francisco San Francisco	10h 31m layover 2h 42m - Seattle 2h 5m - Portland	Alaska Airlines	AS1091 AS1039 AS836
from $118 Find flight	06:00 Ontario Ontario Int.	16:32 San Francisco San Francisco	10h 32m layover 1h 6m - Seattle 3h 40m - Portland	Alaska Airlines	AS1091 AS2213 AS2054
from $118 Find flight	06:00 Ontario Ontario Int.	16:32 San Francisco San Francisco	10h 32m layover 2h 42m - Seattle 2h 5m - Portland	Alaska Airlines	AS1091 AS1039 AS2054
from $155 Find flight	06:00 Ontario Ontario Int.	21:36 San Francisco San Francisco	15h 36m layover 7h 36m - Seattle 0h 43m - San Diego	Alaska Airlines	AS1091 AS1142 AS1005
from $155 Find flight	06:00 Ontario Ontario Int.	21:36 San Francisco San Francisco	15h 36m layover 5h 55m - Seattle 2h 23m - San Diego	Alaska Airlines	AS1091 AS1156 AS1005

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

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

Full flight schedule will help you in detecting at what time planes fly from Ontario to San Francisco. 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
07:36 — 09:02	07:36 — 09:02 F92677 Frontier Airlines Ontario — San Francisco	1h 26m	Find flight from$39
15:30 — 17:14	15:30 — 17:14 UA5660 United Airlines Ontario — San Francisco	1h 44m	Find flight from$155
19:15 — 20:44	19:15 — 20:44 UA1757 United Airlines Ontario — San Francisco	1h 29m	Find flight from$155
05:10 — 15:25	05:10 — 08:29 UA2317 United Airlines Ontario — Denver 5h 5m stop 13:34 — 15:25 UA304 United Airlines Denver — San Francisco	10h 15m including layover	Find flight from$242
05:10 — 17:50	05:10 — 08:29 UA2317 United Airlines Ontario — Denver 7h 30m stop 15:59 — 17:50 UA1300 United Airlines Denver — San Francisco	12h 40m including layover	Find flight from$242
07:00 — 22:43	07:00 — 09:26 AS1058 Alaska Airlines Ontario — Portland 11h 29m stop 20:55 — 22:43 AS2038 Alaska Airlines Portland — San Francisco	15h 43m including layover	Find flight from$141
08:04 — 14:23	09:26 — 10:33 F91358 Frontier Airlines Ontario — Las Vegas 3h 14m stop 10:16 — 12:05 F93019 Frontier Airlines Las Vegas — San Francisco	6h 19m including layover	Find flight from$68
11:14 — 16:32	11:14 — 13:38 AS3312 Alaska Airlines Ontario — Portland 1h 2m stop 14:40 — 16:32 AS2054 Alaska Airlines Portland — San Francisco	5h 18m including layover	Find flight from$113
11:45 — 16:54	11:14 — 13:38 AS3312 Alaska Airlines Ontario — Portland 47m stop 14:40 — 16:31 AS836 Alaska Airlines Portland — San Francisco	5h 9m including layover	Find flight from$113
13:45 — 22:56	13:45 — 17:04 UA2278 United Airlines Ontario — Denver 4h 1m stop 21:05 — 22:56 UA2190 United Airlines Denver — San Francisco	9h 11m including layover	Find flight from$242
13:45 — 07:50 +1 day	13:45 — 17:04 UA2278 United Airlines Ontario — Denver 12h 56m stop 06:00 — 07:50 UA573 United Airlines Denver — San Francisco	18h 5m including layover	Find flight from$242
15:52 — 07:16 +1 day	11:46 — 12:56 F92232 Frontier Airlines Ontario — Las Vegas 12h 25m stop 05:30 — 07:16 F93801 Frontier Airlines Las Vegas — San Francisco	15h 24m including layover	Find flight from$57
16:06 — 09:11 +1 day	16:06 — 18:59 AS1119 Alaska Airlines Ontario — Seattle 11h 56m stop 06:55 — 09:11 AS3369 Alaska Airlines Seattle — San Francisco	17h 5m including layover	Find flight from$155
16:06 — 10:24 +1 day	13:53 — 16:46 AS1119 Alaska Airlines Ontario — Seattle 13h 4m stop 07:05 — 09:22 AS1166 Alaska Airlines Seattle — San Francisco	18h 18m including layover	Find flight from$155
17:30 — 21:38	13:47 — 15:01 F92232 Frontier Airlines Ontario — Las Vegas 1h 17m stop 16:12 — 18:00 F94401 Frontier Airlines Las Vegas — San Francisco	4h 8m including layover	Find flight from$77
17:30 — 00:59 +1 day	13:47 — 15:01 F92232 Frontier Airlines Ontario — Las Vegas 4h 37m stop 05:30 — 07:14 F94157 Frontier Airlines Las Vegas — San Francisco	7h 29m including layover	Find flight from$82
20:27 — 08:13 +1 day	16:08 — 19:26 F92908 Frontier Airlines Ontario — Denver 6h 32m stop 07:07 — 09:06 F91093 Frontier Airlines Denver — San Francisco	11h 46m including layover	Find flight from$72
20:35 — 00:59 +1 day	18:44 — 19:53 F94206 Frontier Airlines Ontario — Las Vegas 1h 26m stop 12:37 — 14:22 F94157 Frontier Airlines Las Vegas — San Francisco	4h 24m including layover	Find flight from$77
00:58 — 20:30	00:58 — 05:57 Y41861 Volaris Ontario — Guadalajara 5h 26m stop 11:23 — 13:00 AM221 Aeromexico Guadalajara — Mexico City 4h 20m stop 17:20 — 20:30 AM664 Aeromexico Mexico City — San Francisco	19h 32m including layover	Find flight from$356
06:00 — 16:31	06:00 — 08:54 AS1091 Alaska Airlines Ontario — Seattle 2h 42m stop 11:36 — 12:35 AS1039 Alaska Airlines Seattle — Portland 2h 5m stop 14:40 — 16:31 AS836 Alaska Airlines Portland — San Francisco	10h 31m including layover	Find flight from$118
06:00 — 16:32	06:00 — 08:54 AS1091 Alaska Airlines Ontario — Seattle 1h 6m stop 10:00 — 11:00 AS2213 Alaska Airlines Seattle — Portland 3h 40m stop 14:40 — 16:32 AS2054 Alaska Airlines Portland — San Francisco	10h 32m including layover	Find flight from$118

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 Ontario to San Francisco depends on and how to choose the most interesting flight option for you.

Distance between Ontario and San Francisco is 585 miles. Time difference between the cities is 0h. Airplanes depart 00:58 to 20:56 from 2 Ontario airports and arrive 00:58 to 20:56 to 3 San Francisco airports. Average flight time is 1h 29m.

The fastest flight 1h 26m
Average flight time 1h 29m
The earliest flight 00:58
The latest flight 20:56
Distance 364 ml

The cheapest months to travel to San Francisco are february (from 39 $), november (from 53 $), december (from 55 $).

The most expensive months are january (from 57 $), december (from 55 $), november (from 53 $).

What is the lowest airfare Ontario to San Francisco?

The cheapest plane ticket found by our users is $39. This airfare is for economy class on one-way F92677 flight by Frontier Airlines for February 21, 2025 which leaves Ontario Int. in Ontario at 07:36 am and arrives at San Francisco San Francisco at 09:02.

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 Ontario — San Francisco is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 45 departures per week at the price of from $ 113 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 450.

Direct flights

There are 3 nonstop flights on the route. The fastest direct flight is F92677 by Frontier Airlines takes 1h 26m and the cheapest is F92677 by Frontier Airlines for $39.

F9 - Frontier Airlines

from $39

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UA - United Airlines

from $155

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Connecting Flights

There are 70 flights with layovers on the route. The fastest connecting flight is F92232 by Frontier Airlines takes 4h 8m and the cheapest is F92677 by Frontier Airlines for $57.

AS - Alaska Airlines

from $113

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F9 - Frontier Airlines

from $57

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UA - United Airlines

from $242

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Y4 - Volaris

from $356

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Airports

You can fly from Ontario to San Francisco from 2 airports (Ontario Int., International Heliport).

Ontario airports

Ontario Int.-ONT

from $39
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International Heliport-JIO

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San Francisco airports

San Francisco-SFO

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Embarkadero-EMB

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China Basin Heliport-JCC

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Airplanes

There are flights to San Francisco from Ontario by 4 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Ontario

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

Ontario — Tampa

from $54

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Ontario — Pittsburgh

from $70

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Ontario — Indianapolis

from $62

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Ontario — Cleveland

from $63

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Ontario — Norfolk

from $79

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Ontario — Tucson

from $80

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Ontario — New Orleans

from $63

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Ontario — San Jose

from $61

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Ontario — Honolulu

from $63

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Ontario — Austin

from $67

Find

Top International Destinations from Ontario

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.

Ontario — San Jose

from $61

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Ontario — Guadalajara

from $70

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Ontario — Mexico City

from $58

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Ontario — Cancun

from $74

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Ontario — Toronto

from $70

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Ontario — London

from $62

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Ontario — Vancouver

from $61

Find

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.
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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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