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Cheap flights from Oakland to Ontario (OAK - ONT) from $147

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
OAK — ONT
Jun 15 — Jun 221
From?
To?
Sat 6/15
Sat 6/22
1 adult, Economy
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Cheap flight deals from Oakland to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Oakland (OAK) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 10, 2024.

Popular in

January

Cheapest in

February

Round-trip from

$238

One-way from

$147
High demand for flights, 36% potential price rise
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Best time to find cheap flights, 47% potential price drop
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From Oakland to Ontario
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One-way flight from Oakland to Ontario
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What is the cheapest day to fly round-trip from Oakland, California to Ontario?

Monday is generally a great day to depart. Flying on this day could help you save up to 65%.

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

To save on the cost of your flight from Oakland, California to Ontario, book at least 36 days before your planned departure. Booking around this time can save you about 55% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $139 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $189.

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

April can be a great time to fly to Ontario from Oakland, California with a flight ticket averaging about $148. Cheapflights users have found deals in the month of April for as cheap as $44. The most expensive prices can be found in the month of November.

What is the cheapest time of day to fly from OAK to ONT?

A simple way to save on the total cost of your ticket is to fly from Oakland, California to Ontario in the morning. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight in the evening.

Cheap Oakland to Ontario flights in June & July 2024

Find cheap flight options from Oakland to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Prices were last updated on June 10, 2024.
Check out some of the best flight deals from Oakland to Ontario in 2024. Check back soon for alternative fares.
Tue 7/96:00 amOAK - ONT
1 stop17h 59mAlaska Airlines
Tue 7/167:00 amONT - OAK
1 stop25h 12mAlaska Airlines
Deal found 6/9$313
Mon 7/86:00 amOAK - ONT
1 stop27h 05mAlaska Airlines
Wed 7/104:24 pmONT - OAK
1 stop7h 31mAlaska Airlines
Deal found 6/9$328
Wed 7/106:00 amOAK - ONT
1 stop17h 59mAlaska Airlines
Thu 7/117:00 amONT - OAK
1 stop25h 12mAlaska Airlines
Deal found 6/8$329
Mon 7/86:00 amOAK - ONT
1 stop27h 05mAlaska Airlines
Mon 7/157:55 pmONT - OAK
1 stop12h 17mAlaska Airlines
Deal found 6/9$332
Wed 7/178:52 amOAK - ONT
2 stops15h 07mAlaska Airlines
Fri 7/197:55 pmONT - OAK
1 stop12h 17mAlaska Airlines
Deal found 6/9$333
Wed 7/106:00 amOAK - ONT
1 stop17h 59mAlaska Airlines
Thu 7/114:24 pmONT - OAK
2 stops15h 48mAlaska Airlines
Deal found 6/8$334
Tue 7/98:52 amOAK - ONT
1 stop13h 48mAlaska Airlines
Tue 7/167:00 amONT - OAK
1 stop25h 12mAlaska Airlines
Deal found 6/9$337
Tue 7/98:52 amOAK - ONT
1 stop13h 48mAlaska Airlines
Wed 7/104:24 pmONT - OAK
1 stop7h 31mAlaska Airlines
Deal found 6/9$338
Wed 7/108:52 amOAK - ONT
2 stops15h 07mAlaska Airlines
Thu 7/114:24 pmONT - OAK
2 stops15h 48mAlaska Airlines
Deal found 6/8$339

Oakland to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Oakland and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Check out some of the best flight deals from Oakland to Ontario in 2024. Check back soon for alternative fares.
Tue 7/96:00 amOAK - ONT
1 stop17h 59mAlaska Airlines
Tue 7/167:00 amONT - OAK
1 stop25h 12mAlaska Airlines
Deal found 6/9$313
Mon 7/86:00 amOAK - ONT
1 stop27h 05mAlaska Airlines
Wed 7/104:24 pmONT - OAK
1 stop7h 31mAlaska Airlines
Deal found 6/9$328
Wed 7/106:00 amOAK - ONT
1 stop17h 59mAlaska Airlines
Thu 7/117:00 amONT - OAK
1 stop25h 12mAlaska Airlines
Deal found 6/8$329
Mon 9/167:26 pmOAK - ONT
1 stop26h 49mAlaska Airlines
Wed 9/187:00 amONT - OAK
1 stop5h 47mAlaska Airlines
Deal found 6/9$330
Mon 7/86:00 amOAK - ONT
1 stop27h 05mAlaska Airlines
Mon 7/157:55 pmONT - OAK
1 stop12h 17mAlaska Airlines
Deal found 6/9$332
Wed 7/178:52 amOAK - ONT
2 stops15h 07mAlaska Airlines
Fri 7/197:55 pmONT - OAK
1 stop12h 17mAlaska Airlines
Deal found 6/9$333
Wed 7/106:00 amOAK - ONT
1 stop17h 59mAlaska Airlines
Thu 7/114:24 pmONT - OAK
2 stops15h 48mAlaska Airlines
Deal found 6/8$334
Tue 7/98:52 amOAK - ONT
1 stop13h 48mAlaska Airlines
Tue 7/167:00 amONT - OAK
1 stop25h 12mAlaska Airlines
Deal found 6/9$337
Tue 7/98:52 amOAK - ONT
1 stop13h 48mAlaska Airlines
Wed 7/104:24 pmONT - OAK
1 stop7h 31mAlaska Airlines
Deal found 6/9$338

Oakland to Ontario flights leaving soon

Find last-minute flight options from Oakland to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Users seeking a last-minute flight from Oakland to Ontario should consider booking one of these fares. To prevent any unwanted surprises, users should verify their flight info before booking.
Thu 6/2010:00 amOAK - ONT
1 stop5h 29mAlaska Airlines
Wed 7/314:24 pmONT - OAK
1 stop7h 31mAlaska Airlines
Deal found 6/8$558
Sun 6/166:00 amOAK - ONT
1 stop9h 29mAlaska Airlines
Fri 7/57:55 pmONT - OAK
1 stop12h 17mAlaska Airlines
Deal found 6/8$592
Tue 6/188:52 amOAK - ONT
1 stop10h 23mAlaska Airlines
Tue 6/2510:00 amONT - OAK
1 stop13h 55mAlaska Airlines
Deal found 6/9$672
Wed 6/192:40 pmOAK - ONT
1 stop9h 19mAlaska Airlines
Tue 6/2510:00 amONT - OAK
1 stop13h 55mAlaska Airlines
Deal found 6/9$685
Thu 6/202:40 pmOAK - ONT
1 stop9h 19mAlaska Airlines
Wed 7/3111:20 amONT - OAK
2 stops12h 35mAlaska Airlines
Deal found 6/8$737
Sun 6/168:52 amOAK - ONT
1 stop13h 48mAlaska Airlines
Tue 6/187:55 pmONT - OAK
1 stop12h 17mAlaska Airlines
Deal found 6/9$796
Mon 6/172:40 pmOAK - ONT
1 stop9h 19mAlaska Airlines
Tue 6/1811:20 amONT - OAK
1 stop20h 52mAlaska Airlines
Deal found 6/10$809
Thu 6/208:52 amOAK - ONT
2 stops15h 07mAlaska Airlines
Sat 6/2210:00 amONT - OAK
1 stop13h 55mAlaska Airlines
Deal found 6/9$814
Mon 6/174:50 pmOAK - ONT
1 stop7h 09mAlaska Airlines
Thu 6/204:24 pmONT - OAK
1 stop7h 31mAlaska Airlines
Deal found 6/9$822

One-way flights to Ontario from Oakland

Search for one-way flight options from Oakland to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Users in need of a one-way flight from Oakland to Ontario can choose from these deals. Those seeking round-trip flights from Oakland to Ontario should utilize the search form at the the top of the page.
Wed 8/74:50 pmOAK - ONT
1 stop7h 09mAlaska Airlines
Deal found 6/8$147
Wed 7/106:00 amOAK - ONT
1 stop17h 59mAlaska Airlines
Deal found 6/9$148
Wed 7/106:00 amOAK - ONT
1 stop17h 59mAlaska Airlines
Deal found 6/9$153
Wed 7/108:52 amOAK - ONT
2 stops15h 07mAlaska Airlines
Deal found 6/9$158
Mon 7/156:00 amOAK - ONT
1 stop27h 05mAlaska Airlines
Deal found 6/9$167
Tue 7/97:00 pmOAK - ONT
1 stop27h 40mAlaska Airlines
Deal found 6/9$177
Thu 8/86:00 amOAK - ONT
1 stop17h 59mAlaska Airlines
Deal found 6/9$179
Fri 8/96:00 amOAK - ONT
2 stops16h 40mAlaska Airlines
Deal found 6/9$184
Sat 7/138:52 amOAK - ONT
1 stop13h 48mAlaska Airlines
Deal found 6/9$187

Find flights from Oakland to Ontario within your budget

Customize your flight search to find flights from Oakland 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, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$313 - $929

Route

Depart

Return

Price

OaklandOntario

OAK - ONT

OAKONT

Oakland

Tue 7/9

1 stop17h 59m

Ontario

Tue 7/16

1 stop25h 12m

$313

OaklandOntario

OAK - ONT

OAKONT

Oakland

Mon 7/8

1 stop27h 05m

Ontario

Wed 7/10

1 stop7h 31m

$328

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 7/10

1 stop17h 59m

Ontario

Thu 7/11

1 stop25h 12m

$329

OaklandOntario

OAK - ONT

OAKONT

Oakland

Mon 7/8

1 stop27h 05m

Ontario

Mon 7/15

1 stop12h 17m

$332

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 7/17

2 stops15h 07m

Ontario

Fri 7/19

1 stop12h 17m

$333

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 7/10

1 stop17h 59m

Ontario

Thu 7/11

2 stops15h 48m

$334

OaklandOntario

OAK - ONT

OAKONT

Oakland

Tue 7/9

1 stop13h 48m

Ontario

Tue 7/16

1 stop25h 12m

$337

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 9/4

1 stop10h 17m

Ontario

Sun 9/8

1 stop17h 51m

$616

OaklandOntario

OAK - ONT

OAKONT

Oakland

Sun 7/7

2 stops24h 49m

Ontario

Sat 7/13

1 stop16h 01m

$929

Flights are sorted by cheapest first

Deals found on 6/9

What is the cheapest day to fly from Oakland, California to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Oakland to Ontario. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Oakland, California to Ontario flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Oakland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Oakland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

57.2 - 73.4 °F

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated June 10, 2024.
Get a feel of what it's like to fly with Alaska Airlines, Delta and Volaris from Oakland to Ontario by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,254 reviews

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Entertainment

7.3

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,254 reviews
Alaska Airlines
8.1
Very good
9,254 reviews

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Entertainment

7.3

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,295 reviews
Alaska Airlines
8.1
Very good
9,254 reviews

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Entertainment

7.3

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Volaris
6.6
Okay
1,457 reviews
Alaska Airlines
8.1
Very good
9,254 reviews

Overall

8.1

Boarding

8.2

Crew

8.6

Food

7.3

Entertainment

7.3

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Oakland to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Oakland to Ontario?

    If you book a flight from Oakland to Ontario, you will be flying from Oakland to Ontario. Flights to Ontario (ONT) from Oakland (OAK) take 1h 20m for a nonstop flight. There are 4 flights from Oakland to Ontario per day from 6 airlines.

  • Can I find flights from Oakland, California to Ontario for under $400 on Cheapflights?

    Yes, there are multiple flights from Oakland, California to Ontario for under $400. The cheapest flight booked recently is on Alaska Airlines for just $313, but on average you can expect to pay $343.

  • Are there last-minute flights available from Oakland, California to Ontario for under $600?

    There are currently 20+ open flights from Oakland, California to Ontario within the next 7 days for less than $600.

  • What is the cheapest airline to fly from Oakland, California to Ontario round-trip?

    Our cheapest airline available from Oakland, California to Ontario is Alaska Airlines. Our recent data shows that you can find tickets from as low as $313 on this airline.

  • What does OAK to ONT mean?

    OAK and ONT are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. OAK to ONT refers to a flight route from Oakland Airport to Ontario Airport.

  • Can I find deals for flights from Oakland to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Oakland to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Oakland to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Oakland to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Oakland to Ontario that include hotel bookings?

    Yes. In addition to deals on Oakland to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oakland to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oakland to Ontario.

  • Can I find deals for business class flights from Oakland to Ontario?

    Yes. Cheapflights offers flight deals from Oakland to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Oakland to Ontario that allow pets onboard?

    Many airlines flying from Oakland to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Oakland to Ontario?

    Yes, you can often find last-minute deals on Oakland to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Oakland, California to Ontario flight deals updated?

    The Oakland, California to Ontario flight deals you see on this page were last updated on 6/9.

  • What are the most popular airlines that fly from Oakland, California to Ontario?

    Before booking your flight from Oakland, California to Ontario check out the most popular airlines for this route: Alaska Airlines, Delta or Frontier.

  • What is the cheapest month to book a flight from Oakland, California to Ontario?

    Currently, October is the cheapest month in which you can book a flight from Oakland, California to Ontario (average of $239). Flying from Oakland, California to Ontario in July is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Oakland to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from Oakland to Ontario

Discover the top 6 airlines that operate flights from Oakland to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$110FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$46Average$111FlexibilityNo cancel feeOn-time65%
DeltaCheapest$65Average$153FlexibilityNo cancel feeOn-timeN/A
Breeze AirwaysCheapest$78Average$143FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$100Average$268FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$106Average$413FlexibilityNo cancel feeOn-time75%
Chicago to Phoenix flights
San Francisco to London flights
Los Angeles to Manila flights
New York to Hong Kong flights
Austin to Houston flights
San Francisco to Tokyo flights
Las Vegas to San Diego flights
Houston to Mexico City flights
Kansas City to Orlando flights
New York to Denver flights
San Diego to Honolulu flights
Oakland, California to Porto flights

Search flights from Oakland to Ontario by cabin class

Find flights from Oakland to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Oakland to Ontario

Find hourly flight availability from Oakland to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 10, 2024.
7%of flight departuresEarly morningMidnight to 6 am
34%of flight departuresMorning6 am to noon
33%of flight departuresAfternoonNoon to 6 pm
26%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Oakland to Ontario

Explore weekly flight availability from Oakland to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 10, 2024.
Sunday4daily flights
Monday5daily flights
Tuesday3daily flights
Wednesday4daily flights
Thursday5daily flights
Friday5daily flights
Saturday3daily flights

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