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Cheap flights from Oakland to Ontario (OAK - ONT) from $119

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 6/14. 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
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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The best prices from Oakland to Ontario are usually found in February or June, booked 26 days in advance, depart on a Tuesday or Wednesday and return on a Monday

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 May 16, 2024.

Popular in

January

Cheapest in

February

Round-trip from

$238

One-way from

$124
High demand for flights, 35% 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 58%.

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 30 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.

When is the cheapest time to fly from Oakland, California to Ontario (OAK - 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 40% on your trip compared to booking a flight in the evening.

Cheap Alaska Airlines flights from Oakland to Ontario

Explore cheap flight options specifically provided by Alaska Airlines for the route between Oakland and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Peruse some of the lowest-priced Alaska Airlines flights we've found from Oakland to Ontario. It's recommended that users confirm their flight details before booking.
Tue 7/164:50 pmOAK - ONT
1 stop7h 09mAlaska Airlines
Mon 7/228:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$312
Tue 6/188:19 pmOAK - ONT
1 stop12h 46mAlaska Airlines
Wed 6/198:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$317
Tue 6/184:50 pmOAK - ONT
1 stop7h 09mAlaska Airlines
Wed 6/198:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$322
Wed 6/126:00 amOAK - ONT
1 stop13h 14mAlaska Airlines
Wed 6/198:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$337
Wed 6/126:00 amOAK - ONT
1 stop9h 26mAlaska Airlines
Mon 6/178:20 pmONT - OAK
1 stop13h 00mAlaska Airlines
Deal found 5/15$347
Wed 6/56:00 amOAK - ONT
1 stop17h 58mAlaska Airlines
Sat 6/84:20 pmONT - OAK
2 stops16h 39mAlaska Airlines
Deal found 5/15$352
Wed 6/125:26 pmOAK - ONT
2 stops30h 33mAlaska Airlines
Mon 6/178:20 pmONT - OAK
1 stop13h 00mAlaska Airlines
Deal found 5/15$357
Tue 6/48:22 pmOAK - ONT
1 stop22h 52mAlaska Airlines
Sat 6/84:20 pmONT - OAK
1 stop7h 39mAlaska Airlines
Deal found 5/15$360
Wed 6/56:00 amOAK - ONT
1 stop9h 26mAlaska Airlines
Wed 6/58:09 pmONT - OAK
1 stop27h 50mAlaska Airlines
Deal found 5/15$362

Cheap Delta flights from Oakland to Ontario

Explore cheap flight options specifically provided by Delta for the route between Oakland and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a gander at the lowest prices we've found on Delta flights from Oakland to Ontario. Deals are refreshing constantly so come back soon for more options.
Fri 6/75:50 amOAK - ONT
1 stop17h 52mDelta
Sun 6/95:35 amONT - OAK
1 stop18h 20mDelta
Deal found 5/15$434
Sat 5/255:50 amOAK - ONT
1 stop15h 49mDelta
Wed 5/291:20 pmONT - OAK
1 stop10h 31mDelta
Deal found 5/15$540
Sat 10/121:15 pmOAK - ONT
1 stop9h 27mDelta
Tue 10/156:00 amONT - OAK
1 stop10h 31mDelta
Deal found 5/15$643
Mon 6/35:50 amOAK - ONT
1 stop17h 53mDelta
Sun 6/91:25 pmONT - OAK
1 stop10h 30mDelta
Deal found 5/15$724
Sun 6/25:50 amOAK - ONT
1 stop17h 53mDelta
Sun 6/91:25 pmONT - OAK
1 stop10h 30mDelta
Deal found 5/15$732
Tue 6/44:50 pmOAK - ONT
2 stops17h 13mDelta
Sun 6/91:25 pmONT - OAK
1 stop10h 30mDelta
Deal found 5/15$740
Sun 6/25:50 amOAK - ONT
1 stop17h 53mDelta
Wed 6/56:42 pmONT - OAK
2 stops29h 11mDelta
Deal found 5/15$750
Tue 6/44:50 pmOAK - ONT
2 stops25h 11mDelta
Fri 6/76:00 amONT - OAK
1 stop17h 55mDelta
Deal found 5/15$765
Mon 6/35:50 amOAK - ONT
1 stop17h 53mDelta
Tue 6/46:42 pmONT - OAK
2 stops29h 09mDelta
Deal found 5/15$783

Cheap Oakland to Ontario flights in May & June 2024

Find cheap flight options from Oakland to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Check out some of the best flight deals from Oakland to Ontario in 2024. Check back soon for alternative fares.
Tue 6/188:19 pmOAK - ONT
1 stop12h 46mAlaska Airlines
Wed 6/198:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$317
Tue 6/184:50 pmOAK - ONT
1 stop7h 09mAlaska Airlines
Wed 6/198:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$322
Wed 6/126:00 amOAK - ONT
1 stop13h 14mAlaska Airlines
Wed 6/198:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$337
Wed 6/126:00 amOAK - ONT
1 stop9h 26mAlaska Airlines
Mon 6/178:20 pmONT - OAK
1 stop13h 00mAlaska Airlines
Deal found 5/15$347
Wed 6/56:00 amOAK - ONT
1 stop17h 58mAlaska Airlines
Sat 6/84:20 pmONT - OAK
2 stops16h 39mAlaska Airlines
Deal found 5/15$352
Wed 6/125:26 pmOAK - ONT
2 stops30h 33mAlaska Airlines
Mon 6/178:20 pmONT - OAK
1 stop13h 00mAlaska Airlines
Deal found 5/15$357
Tue 6/46:00 amOAK - ONT
1 stop27h 05mAlaska Airlines
Wed 6/54:21 pmONT - OAK
1 stop7h 38mAlaska Airlines
Deal found 5/15$360
Wed 6/56:00 amOAK - ONT
1 stop9h 26mAlaska Airlines
Wed 6/58:09 pmONT - OAK
1 stop27h 50mAlaska Airlines
Deal found 5/15$362
Tue 6/184:50 pmOAK - ONT
1 stop7h 09mAlaska Airlines
Thu 6/207:00 amONT - OAK
1 stop25h 12mAlaska Airlines
Deal found 5/16$363

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 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the best flight deals from Oakland to Ontario in 2024. Check back soon for alternative fares.
Tue 7/164:50 pmOAK - ONT
1 stop7h 09mAlaska Airlines
Mon 7/228:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$312
Tue 6/188:19 pmOAK - ONT
1 stop12h 46mAlaska Airlines
Wed 6/198:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$317
Tue 6/184:50 pmOAK - ONT
1 stop7h 09mAlaska Airlines
Wed 6/198:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$322
Wed 6/126:00 amOAK - ONT
1 stop13h 14mAlaska Airlines
Wed 6/198:20 pmONT - OAK
1 stop27h 35mAlaska Airlines
Deal found 5/15$337
Wed 6/126:00 amOAK - ONT
1 stop9h 26mAlaska Airlines
Mon 6/178:20 pmONT - OAK
1 stop13h 00mAlaska Airlines
Deal found 5/15$347
Wed 6/56:00 amOAK - ONT
1 stop17h 58mAlaska Airlines
Sat 6/84:20 pmONT - OAK
2 stops16h 39mAlaska Airlines
Deal found 5/15$352
Wed 6/125:26 pmOAK - ONT
2 stops30h 33mAlaska Airlines
Mon 6/178:20 pmONT - OAK
1 stop13h 00mAlaska Airlines
Deal found 5/15$357
Tue 6/46:00 amOAK - ONT
1 stop27h 05mAlaska Airlines
Wed 6/54:21 pmONT - OAK
1 stop7h 38mAlaska Airlines
Deal found 5/15$360
Wed 6/56:00 amOAK - ONT
1 stop9h 26mAlaska Airlines
Wed 6/58:09 pmONT - OAK
1 stop27h 50mAlaska Airlines
Deal found 5/15$362

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 2,637,452 searches. Data last updated May 16, 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.
Sat 5/255:50 amOAK - ONT
1 stop15h 49mDelta
Wed 5/291:20 pmONT - OAK
1 stop10h 31mDelta
Deal found 5/15$540
Sun 5/266:00 amOAK - ONT
1 stop13h 14mAlaska Airlines
Wed 5/296:00 amONT - OAK
1 stop6h 15mAlaska Airlines
Deal found 5/15$576
Fri 5/246:00 amOAK - ONT
1 stop17h 58mAlaska Airlines
Tue 5/288:09 pmONT - OAK
1 stop13h 51mAlaska Airlines
Deal found 5/15$631
Wed 5/2212:55 pmOAK - ONT
1 stop11h 03mAlaska Airlines
Sat 5/2510:00 amONT - OAK
1 stop13h 59mAlaska Airlines
Deal found 5/15$667
Sat 5/258:22 pmOAK - ONT
1 stop12h 43mAlaska Airlines
Mon 5/276:00 amONT - OAK
2 stops29h 00mAlaska Airlines
Deal found 5/15$672
Sat 5/258:22 pmOAK - ONT
1 stop19h 04mAlaska Airlines
Mon 5/276:00 amONT - OAK
1 stop28h 00mAlaska Airlines
Deal found 5/15$688
Fri 5/242:40 pmOAK - ONT
1 stop9h 18mAlaska Airlines
Sun 5/264:21 pmONT - OAK
1 stop7h 38mAlaska Airlines
Deal found 5/15$692
Wed 5/226:00 amOAK - ONT
1 stop9h 26mAlaska Airlines
Wed 5/228:09 pmONT - OAK
1 stop13h 51mAlaska Airlines
Deal found 5/15$697
Sat 5/2510:40 amOAK - ONT
2 stops9h 45mAlaska Airlines
Wed 5/296:00 amONT - OAK
1 stop6h 15mAlaska Airlines
Deal found 5/15$706

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 2,637,452 searches. Data last updated May 16, 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.
Fri 6/146:50 amOAK - ONT
Nonstop1h 20mSouthwest
Deal found 5/15$119
Fri 6/146:05 amOAK - ONT
2 stops6h 05mSouthwest
Deal found 5/15$124
Tue 6/184:50 pmOAK - ONT
1 stop7h 09mAlaska Airlines
Deal found 5/16$146
Tue 6/184:50 pmOAK - ONT
1 stop7h 09mAlaska Airlines
Deal found 5/15$150
Wed 6/196:00 amOAK - ONT
1 stop13h 25mAlaska Airlines
Deal found 5/16$152
Wed 7/178:52 amOAK - ONT
2 stops15h 07mAlaska Airlines
Deal found 5/15$157
Tue 9/103:01 pmOAK - ONT
1 stop7h 19mAlaska Airlines
Deal found 5/16$166
Tue 9/103:01 pmOAK - ONT
1 stop7h 19mAlaska Airlines
Deal found 5/16$169
Sat 9/283:01 pmOAK - ONT
1 stop7h 19mAlaska Airlines
Deal found 5/15$171

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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$312 - $846

Route

Depart

Return

Price

OaklandOntario

OAK - ONT

OAKONT

Oakland

Tue 7/16

1 stop7h 09m

Ontario

Mon 7/22

1 stop27h 35m

$312

OaklandOntario

OAK - ONT

OAKONT

Oakland

Tue 6/18

1 stop12h 46m

Ontario

Wed 6/19

1 stop27h 35m

$317

OaklandOntario

OAK - ONT

OAKONT

Oakland

Tue 6/18

1 stop7h 09m

Ontario

Wed 6/19

1 stop27h 35m

$322

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 6/12

1 stop13h 14m

Ontario

Wed 6/19

1 stop27h 35m

$337

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 6/12

1 stop9h 26m

Ontario

Mon 6/17

1 stop13h 00m

$347

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 6/5

1 stop17h 58m

Ontario

Sat 6/8

2 stops16h 39m

$352

OaklandOntario

OAK - ONT

OAKONT

Oakland

Wed 6/12

2 stops30h 33m

Ontario

Mon 6/17

1 stop13h 00m

$357

OaklandOntario

OAK - ONT

OAKONT

Oakland

Fri 6/7

1 stop17h 52m

Ontario

Sun 6/9

1 stop18h 20m

$434

OaklandOntario

OAK - ONT

OAKONT

Oakland

Mon 6/24

2 stops24h 49m

Ontario

Tue 6/25

1 stop16h 01m

$846

Flights are sorted by cheapest first

Deals found on 5/15

When is the best time to book a flight from Oakland, California to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Oakland to Ontario. Price data was last updated on May 10, 2024.
To ensure you get the cheapest price possible for a flight from Oakland, California to Ontario, you should look to book at least 26 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

When is the cheapest time 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 May 12, 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

Average price of flights to Ontario by month

Plan your trip from Oakland to Ontario by taking into account the cheapest months to travel. The average price of a one-way flight from Oakland to Ontario is currently $150 while a round-trip flight costs $403. Price data was last updated on May 12, 2024.

Currently, October is the cheapest month in which you can book a flight from Oakland, California to Ontario (average of $238). Flying from Oakland, California to Ontario in July is currently the most expensive (average of $338). 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.

January

$268

February

$287

March

$281

April

$256

May

$268

June

$330

July

$338

August

$287

September

$258

October

$238

November

$268

December

$272

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

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 May 16, 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.
Southwest
8.2
Very good
6,040 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very good
6,040 reviews
Southwest
8.2
Very good
6,040 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Alaska Airlines
8.1
Very good
9,157 reviews
Southwest
8.2
Very good
6,040 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Delta
8.0
Very good
10,673 reviews
Southwest
8.2
Very good
6,040 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Hawaiian Airlines
8.0
Very good
2,297 reviews
Southwest
8.2
Very good
6,040 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Volaris
6.7
Okay
1,500 reviews
Southwest
8.2
Very good
6,040 reviews
Check prices

Food

7.3

Crew

8.7

Entertainment

7.8

Overall

8.2

Comfort

8.1

Boarding

8.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

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 $312, but on average you can expect to pay $361.

  • 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 $312 on this airline.

  • What are the cheapest airlines to fly from Oakland, California to Ontario one-way?

    The cheapest airlines for a one-way flight from Oakland, California to Ontario are Southwest ($119), Alaska Airlines ($146), and Delta ($230).

  • 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 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 5/16.

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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$119FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$55Average$114FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$64Average$153FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Breeze AirwaysCheapest$78Average$134FlexibilityNo cancel feeOn-timeN/A
Search Breeze Airways flights
United AirlinesCheapest$100Average$268FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$106Average$384FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
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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.
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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 May 16, 2024.
24%of flight departuresEarly morningMidnight to 6 am
24%of flight departuresMorning6 am to noon
32%of flight departuresAfternoonNoon to 6 pm
20%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 May 16, 2024.
Sunday4daily flights
Monday5daily flights
Tuesday3daily flights
Wednesday4daily flights
Thursday5daily flights
Friday5daily flights
Saturday3daily flights

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Fly with Cheapflights

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How does Cheapflights help users find flights from Oakland to Ontario?

When you search for this flight from Oakland to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Oakland to Ontario?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Oakland to Ontario.

Can Cheapflights find flights from Oakland to Ontario with no change fees?

Need flexible booking options for your flight to Ontario from Oakland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Oakland to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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