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Cheap flights from Oakland, California to Los Angeles from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oakland, California to Los Angeles departing on 9/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Oakland, California to Los Angeles (OAK-ONT)

Cheap round-trip flights

Southwest Logo
5:45 pm - 7:10 pmOAK-ONT
1h 25mnonstop
Southwest Logo
6:10 pm - 7:30 pmONT-OAK
1h 20mnonstop
$97Southwest
Find Deal
Mon, Sep 22 - Wed, Sep 24
Southwest Logo
6:40 pm - 10:45 pmOAK-ONT
4h 05m1 stop
Southwest Logo
12:00 pm - 1:20 pmONT-OAK
1h 20mnonstop
$107Southwest
Find Deal
Mon, Sep 22 - Sat, Sep 27
Southwest Logo
6:05 am - 7:30 amOAK-ONT
1h 25mnonstop
Southwest Logo
6:20 am - 11:55 amONT-OAK
5h 35m2 stops
$112Southwest
Find Deal
Mon, Sep 22 - Wed, Sep 24
Southwest Logo
3:50 pm - 10:00 pmOAK-ONT
6h 10m1 stop
Southwest Logo
1:55 pm - 7:20 pmONT-OAK
5h 25m1 stop
$117Southwest
Find Deal
Mon, Sep 22 - Sat, Sep 27
Southwest Logo
12:35 pm - 1:55 pmOAK-ONT
1h 20mnonstop
Southwest Logo
6:10 pm - 7:30 pmONT-OAK
1h 20mnonstop
$119Southwest
Find Deal
Tue, Sep 23 - Tue, Sep 30
Southwest Logo
6:25 pm - 10:00 pmOAK-ONT
3h 35m1 stop
Southwest Logo
2:35 pm - 9:25 pmONT-OAK
6h 50m2 stops
$122Southwest
Find Deal
Mon, Sep 22 - Wed, Sep 24
Logo
6:30 am - 9:56 pmOAK-ONT
15h 26m1 stop
Logo
8:00 am - 11:32 pmONT-OAK
15h 32m1 stop
$129
Find Deal
Tue, Sep 23 - Tue, Sep 30
Logo
6:30 am - 9:56 pmOAK-ONT
15h 26m1 stop
Logo
10:28 pm - 11:32 pmONT-OAK
25h 04m1 stop
$133
Find Deal
Wed, Sep 17 - Mon, Sep 22
Logo
6:30 am - 9:56 pmOAK-ONT
15h 26m1 stop
Logo
2:45 pm - 11:32 pmONT-OAK
8h 47m1 stop
$137
Find Deal
Tue, Sep 23 - Mon, Sep 29
Logo
6:30 am - 9:56 pmOAK-ONT
15h 26m1 stop
Logo
9:16 am - 11:32 pmONT-OAK
14h 16m1 stop
$138
Find Deal
Wed, Sep 17 - Thu, Sep 18

Southwest flights from Oakland, California to Ontario

Our best Southwest deals on Oakland, California to Ontario flight tickets
Southwest
Sep 22
OAK5:45 pmOakland
1h 25m
ONT7:10 pmOntario
Sep 24
ONT6:10 pmOntario
1h 20m
OAK7:30 pmOakland
$97
Find similar
Southwest
Sep 22
OAK6:40 pmOakland
4h 05m
1 stop
ONT10:45 pmOntario
Sep 27
ONT12:00 pmOntario
1h 20m
OAK1:20 pmOakland
$107
Find similar
Southwest
Sep 22
OAK6:05 amOakland
1h 25m
ONT7:30 amOntario
Sep 24
ONT6:20 amOntario
5h 35m
2 stops
OAK11:55 amOakland
$112
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Oakland, California to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 28, 2025.
Use the filters below to find and compare flights from Oakland, California to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OaklandOntario

OAK - ONT

OAKONT

Oakland

Mon 9/22

5:45 pm-7:10 pm

Nonstop1h 25m

Ontario

Wed 9/24

6:10 pm-7:30 pm

Nonstop1h 20m

$97

OaklandOntario

OAK - ONT

OAKONT

Oakland

Mon 9/22

6:40 pm-10:45 pm

1 stop4h 05m

Ontario

Sat 9/27

12:00 pm-1:20 pm

Nonstop1h 20m

$107

OaklandOntario

OAK - ONT

OAKONT

Oakland

Mon 9/22

6:05 am-7:30 am

Nonstop1h 25m

Ontario

Wed 9/24

6:20 am-11:55 am

2 stops5h 35m

$112

OaklandOntario

OAK - ONT

OAKONT

Oakland

Mon 9/22

3:50 pm-10:00 pm

1 stop6h 10m

Ontario

Sat 9/27

1:55 pm-7:20 pm

1 stop5h 25m

$117

OaklandOntario

OAK - ONT

OAKONT

Oakland

Tue 9/23

12:35 pm-1:55 pm

Nonstop1h 20m

Ontario

Tue 9/30

6:10 pm-7:30 pm

Nonstop1h 20m

$119

OaklandOntario

OAK - ONT

OAKONT

Oakland

Mon 9/22

6:25 pm-10:00 pm

1 stop3h 35m

Ontario

Wed 9/24

2:35 pm-9:25 pm

2 stops6h 50m

$122

OaklandOntario

OAK - ONT

OAKONT

Oakland

Tue 9/23

6:30 am-9:56 pm

1 stop15h 26m

Ontario

Tue 9/30

8:00 am-11:32 pm

1 stop15h 32m

$129

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 9/17

6:30 am-9:56 pm

1 stop15h 26m

Ontario

Mon 9/22

10:28 pm-11:32 pm

1 stop25h 04m

$133

OaklandOntario

OAK - ONT

OAKONT

Oakland

Tue 9/23

6:30 am-9:56 pm

1 stop15h 26m

Ontario

Mon 9/29

2:45 pm-11:32 pm

1 stop8h 47m

$137

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 9/17

6:30 am-9:56 pm

1 stop15h 26m

Ontario

Thu 9/18

9:16 am-11:32 pm

1 stop14h 16m

$138

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

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

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 Ontario?

In general, September is the cheapest month to fly from Oakland, California to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $207. If you aren’t able to travel during the month of September, then book flights to Ontario from Oakland, California during May instead. Flights to Ontario in May, while not as cheap as those in September, still average around $217.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Monday when prices can be found for as low as $108. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Oakland, California to Ontario for around $159.

What is the cheapest time of day to depart on your flight to Ontario?

At noon is the cheapest time of day to fly from Oakland, California to Ontario when you can find flight prices for as low as $109. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $163 on average. Flights to Ontario from Oakland, California in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Oakland to Ontario flight route?

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

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from Oakland, California when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $244 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Oakland, California for as low as $126 on momondo.

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

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

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

As of August 2025, prices for Oakland, California to Ontario flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from Oakland, California to Ontario

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

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

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

Best Price Found

$68

Fastest flight time

1h 20m

Direct flights

Every day

Airports in Ontario

1 airport
The best one-way flight to Ontario from Oakland, California in the past 72 hours is $68. The best round-trip flight deal from Oakland, California to Ontario found on momondo in the last 72 hours is $124.
The fastest flight from Oakland, California to Ontario takes 1h 20m
Direct flights go from Oakland, California to Ontario every day.
There is 1 airport near Ontario: Ontario (ONT)
Search flight deals

  • How far is Oakland to Ontario by plane?

    The distance between Oakland and Ontario is about 365.2 mi. By plane, this route typically takes 1h 20m.

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

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

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

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

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

    The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Best airlines flying from Oakland, California to Ontario

Compare and see reviews for airlines that fly from Oakland, California to Ontario with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $27Free CancellationRating
5.8
3,204 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $46Free CancellationRating
6.3
8,028 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $58Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
DeltaPriceFrom $98Free CancellationRating
7.9
7,977 reviews
Search Delta flights
SouthwestPriceFrom $153Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

  • Southwest Flights From Oakland, California to Ontario

    The lowest priced Southwest flight from Oakland, California to Ontario from the last 72 hours was $153. Generally, Southwest has 23 flights on this route every week with an average price of $271. Southwest is rated 8.0/10 by our users.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Oakland to Ontario. momondo saves you time and could save you money on your trip.

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

Flights from Oakland to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Oakland and Ontario 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 Oakland to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Oakland to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

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