Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Oakland, California from $96

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Oakland, California departing on 4/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Ontario to San Francisco

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to San Francisco.
6:15 pm - 7:35 pmONT-OAK
1h 20mnonstop
10:45 am - 12:05 pmOAK-ONT
1h 20mnonstop
$194Southwest
Find Deal
Sat, May 24 - Mon, May 26
1:40 pm - 7:45 pmONT-OAK
6h 05m1 stop
1:10 pm - 2:30 pmOAK-ONT
1h 20mnonstop
$204Southwest
Find Deal
Sat, May 24 - Mon, May 26
11:05 am - 7:25 pmONT-OAK
8h 20m2 stops
6:00 am - 7:25 amOAK-ONT
1h 25mnonstop
$209Southwest
Find Deal
Sat, May 24 - Mon, May 26
4:29 pm - 11:44 pmONT-OAK
7h 15m1 stop
8:00 am - 11:58 pmOAK-ONT
15h 58m1 stop
$283Alaska Airlines
Find Deal
Wed, Apr 23 - Wed, Apr 30
6:00 am - 3:48 pmONT-OAK
9h 48m1 stop
8:00 am - 9:16 amOAK-ONT
25h 16m1 stop
$292Alaska Airlines
Find Deal
Sat, Apr 26 - Mon, Apr 28
1:10 pm - 4:15 pmONT-OAK
27h 05m1 stop
6:00 am - 8:50 amOAK-ONT
26h 50m1 stop
$396Delta
Find Deal
Fri, Jun 6 - Sun, Jun 8
1:30 pm - 11:46 pmONT-OAK
10h 16m1 stop
6:00 am - 4:33 pmOAK-ONT
10h 33m1 stop
$535Delta
Find Deal
Thu, Apr 10 - Mon, Apr 14
4:00 pm - 11:59 pmONT-OAK
7h 59m1 stop
7:13 pm - 11:59 pmOAK-ONT
4h 46m1 stop
$656Hawaiian Airlines
Find Deal
Fri, Jun 13 - Sat, Jun 14
6:00 am - 3:48 pmONT-OAK
9h 48m2 stops
7:00 am - 8:34 pmOAK-ONT
13h 34m2 stops
Sat, May 10 - Tue, May 13
6:00 am - 11:43 pmONT-OAK
17h 43m2 stops
6:00 am - 10:55 pmOAK-ONT
16h 55m2 stops
Sat, Apr 19 - Thu, Apr 24

Alaska Airlines flights from Ontario to Oakland, California

Our best Alaska Airlines deals on Ontario to Oakland, California flight tickets
Alaska Airlines
Apr 23
ONT4:29 pmOntario
7h 15m
1 stop
OAK11:44 pmOakland
Apr 30
OAK8:00 amOakland
15h 58m
1 stop
ONT11:58 pmOntario
Alaska Airlines
Apr 26
ONT6:00 amOntario
9h 48m
1 stop
OAK3:48 pmOakland
Apr 28
OAK8:00 amOakland
25h 16m
1 stop
ONT9:16 amOntario
Alaska Airlines
Apr 24
ONT4:29 pmOntario
7h 15m
1 stop
OAK11:44 pmOakland
Apr 29
OAK8:00 amOakland
15h 58m
1 stop
ONT11:58 pmOntario

Delta flights from Ontario to Oakland, California

Our best Delta deals on Ontario to Oakland, California flight tickets
Delta
Jun 6
ONT1:10 pmOntario
27h 05m
1 stop
OAK4:15 pmOakland
Jun 8
OAK6:00 amOakland
26h 50m
1 stop
ONT8:50 amOntario
Delta
Apr 10
ONT1:30 pmOntario
10h 16m
1 stop
OAK11:46 pmOakland
Apr 14
OAK6:00 amOakland
10h 33m
1 stop
ONT4:33 pmOntario
Delta
Apr 11
ONT1:30 pmOntario
10h 16m
1 stop
OAK11:46 pmOakland
Apr 15
OAK6:00 amOakland
10h 33m
1 stop
ONT4:33 pmOntario

See travel insights to San Francisco from

How to get the cheapest flight ticket from Ontario to Oakland, California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Oakland, California?

The month of July is, on average, the cheapest month to fly to Oakland, California from Ontario, with most prices found around $91. If you aren’t able to travel to Oakland, California during the month of July, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $123.

What is the cheapest day to depart on your flight to Oakland, California?

According to our data, Tuesday is the cheapest day to fly to Oakland, California from Ontario. The lowest ticket price found for a Tuesday departure recently was $95. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Oakland, California for around $171.

What is the cheapest time of day to depart on your flight to Oakland, California?

In the evening is the cheapest time of day to fly from Ontario to Oakland, California when you can find flight prices for as low as $100. Flying to Oakland, California in the evening is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $191.

What is the cheapest Ontario to Oakland flight route?

Fly from Ontario to Oakland for the best Ontario - Oakland flight prices

How far in advance should I book a flight to Oakland, California?

You are more likely to see cheaper flights to Oakland, California from Ontario when booking 20 weeks ahead of your departure date. In general, you can expect to find flights to Oakland, California for around $224 when searching 20 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oakland, California from Ontario for as low as $147 on momondo.

What cabin class options are available on Ontario to Oakland flights?

There are 1 cabin classes available to choose from on Ontario to Oakland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Ontario to Oakland, California flight prices changed over time?

As of March 2025, prices for Ontario to Oakland, California flights are approximately 42% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Oakland, California

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Oakland, California according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Oakland, California (ONT to OAK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Oakland, California

Best Price Found

$96

Fastest flight time

1h 15m

Direct flights

Mon, Tue, Wed, Thu, Sat and Sun

Airports in Oakland, California

1 airport
The best one-way flight to Oakland, California from Ontario in the past 72 hours is $96. The best round-trip flight deal from Ontario to Oakland, California found on momondo in the last 72 hours is $194.
The fastest flight from Ontario to Oakland, California takes 1h 15m
Direct flights go from Ontario to Oakland, California on Monday, Tuesday, Wednesday, Thursday, Saturday and Sunday. The only airline offering direct flights is Southwest.
There is 1 airport near Oakland, California: Oakland (OAK)

  • How far is Ontario to Oakland by plane?

    Oakland is 365.2 mi away from Ontario. A reasonable flight in good conditions will take 1h 15m.

  • When did momondo last update prices for flights from Ontario Airport to Oakland Airport?

    Prices for flights from Ontario Airport to Oakland Airport refresh daily.

  • How many operators does momondo search for flights from Ontario Airport to Oakland Airport?

  • How old do you have to be to fly from Ontario Airport to Oakland Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Oakland Airport.

  • What documentation or ID do you need to fly to Oakland Airport?

    The necessary travel and health documents for your Oakland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ontario to Oakland, California?

  • What is the most popular airline from Ontario to Oakland, California?


Best airlines flying from Ontario to Oakland, California

Compare and see reviews for airlines that fly from Ontario to Oakland, California with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $32Free CancellationRating
6.0
3,272 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $48Free CancellationRating
6.3
7,882 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $158Free CancellationRating
8.0
9,792 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $198Free CancellationRating
8.0
4,273 reviews
Search Southwest flights
  • Southwest Flights From Ontario to Oakland, California

    Southwest flight deals from Ontario to Oakland, California start from $198 round-trip. Over the 23 Southwest flights for this route in a normal week, average airfare is usually $277 round-trip - but some users have found much cheaper deals with momondo.


Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Oakland?

It is quick and easy to find Ontario to Oakland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Oakland that suits you.

Can I find flights from Ontario to Oakland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Oakland from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Oakland?

momondo helps you find the best flight between Ontario and Oakland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Oakland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Oakland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


An easier way to manage your Oakland, California trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Mon 3/31
Mon 4/7

Find better results for your trip to the United States