HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Oakland (OAK) to Ontario from $137

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 7/10. 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 — YYZ
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

To save up to 63% on this flight, we recommend booking at least 56 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Oakland, California to Region of Ontario from $544 1-2 weeks out and tickets from $799 for flights departing within the next 72 hours.

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

Flights from Oakland, California to Region of Ontario lean towards being more expensive in December. Prices are generally better when you fly from Oakland, California to Region of Ontario in February, with the cheapest ticket starting at $173.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oakland, California to Region of Ontario as you normally would.

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 3,050,429 searches. Prices were last updated on June 6, 2024.
These are some of the best deals we've found on flights to Ontario in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Mon 7/221:34 pmOAK - YYZ
1 stop14h 08mMultiple Airlines
Tue 7/301:30 pmYYZ - OAK
1 stop10h 45mMultiple Airlines
Deal found 6/5$313
Mon 7/221:34 pmOAK - YYZ
1 stop14h 08mMultiple Airlines
Tue 7/301:30 pmYYZ - OAK
2 stops21h 11mMultiple Airlines
Deal found 6/5$330
Tue 7/165:15 amOAK - YYZ
1 stop14h 30mMultiple Airlines
Tue 7/301:30 pmYYZ - OAK
1 stop12h 06mMultiple Airlines
Deal found 6/5$331
Tue 7/1610:05 pmOAK - YYZ
2 stops20h 41mMultiple Airlines
Tue 7/301:30 pmYYZ - OAK
1 stop12h 06mMultiple Airlines
Deal found 6/5$332
Tue 6/1811:32 pmOAK - YYZ
1 stop17h 18mMultiple Airlines
Mon 7/18:00 pmYYZ - OAK
1 stop18h 12mMultiple Airlines
Deal found 6/5$334
Tue 6/185:15 amOAK - YYZ
2 stops16h 27mMultiple Airlines
Mon 7/14:00 pmYYZ - OAK
3 stops32h 40mMultiple Airlines
Deal found 6/5$335
Tue 7/165:15 amOAK - YYZ
1 stop14h 30mMultiple Airlines
Tue 7/301:30 pmYYZ - OAK
1 stop10h 45mMultiple Airlines
Deal found 6/5$336
Tue 6/185:15 amOAK - YYZ
2 stops16h 27mMultiple Airlines
Mon 7/18:00 pmYYZ - OAK
1 stop18h 12mMultiple Airlines
Deal found 6/5$341
Fri 7/55:15 amOAK - YYZ
1 stop14h 30mMultiple Airlines
Fri 7/128:00 pmYYZ - OAK
1 stop18h 19mMultiple Airlines
Deal found 6/5$343

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 3,050,429 searches. Data last updated June 6, 2024.
These are some of the best deals we've found on flights to Ontario in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Tue 8/132:02 pmOAK - YYZ
1 stop13h 40mMultiple Airlines
Sun 8/188:00 pmYYZ - OAK
1 stop16h 24mMultiple Airlines
Deal found 6/4$302
Mon 7/221:34 pmOAK - YYZ
1 stop14h 08mMultiple Airlines
Tue 7/301:30 pmYYZ - OAK
1 stop10h 45mMultiple Airlines
Deal found 6/5$313
Tue 8/135:15 amOAK - YYZ
2 stops22h 27mMultiple Airlines
Sun 8/188:00 pmYYZ - OAK
1 stop16h 24mMultiple Airlines
Deal found 6/4$316
Tue 8/135:15 amOAK - YYZ
2 stops22h 27mMultiple Airlines
Sun 8/1811:59 amYYZ - OAK
3 stops24h 25mMultiple Airlines
Deal found 6/4$327
Mon 7/221:34 pmOAK - YYZ
1 stop14h 08mMultiple Airlines
Tue 7/301:30 pmYYZ - OAK
2 stops21h 11mMultiple Airlines
Deal found 6/5$330
Tue 7/165:15 amOAK - YYZ
1 stop14h 30mMultiple Airlines
Tue 7/301:30 pmYYZ - OAK
1 stop12h 06mMultiple Airlines
Deal found 6/5$331
Tue 7/1610:05 pmOAK - YYZ
2 stops20h 41mMultiple Airlines
Tue 7/301:30 pmYYZ - OAK
1 stop12h 06mMultiple Airlines
Deal found 6/5$332
Tue 6/1811:32 pmOAK - YYZ
1 stop17h 18mMultiple Airlines
Mon 7/18:00 pmYYZ - OAK
1 stop18h 12mMultiple Airlines
Deal found 6/5$334
Tue 6/185:15 amOAK - YYZ
2 stops16h 27mMultiple Airlines
Mon 7/14:00 pmYYZ - OAK
3 stops32h 40mMultiple Airlines
Deal found 6/5$335

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 3,050,429 searches. Data last updated June 6, 2024.
Have a look at some of the flights available from Oakland to Ontario departing last-minute. It's wise to confirm all flight details are correct before booking.
Sun 6/168:52 pmOAK - YUL
2 stops24h 39mMultiple Airlines
Tue 6/188:55 amYUL - OAK
2 stops15h 45mMultiple Airlines
Deal found 6/4$521
Thu 6/135:15 amOAK - YUL
3 stops36h 25mMultiple Airlines
Mon 6/177:00 amYUL - OAK
3 stops20h 07mMultiple Airlines
Deal found 6/5$525
Sun 6/166:02 amOAK - YUL
3 stops29h 18mMultiple Airlines
Tue 6/187:00 amYUL - OAK
3 stops27h 41mMultiple Airlines
Deal found 6/4$530
Thu 6/135:15 amOAK - YUL
3 stops36h 25mMultiple Airlines
Mon 6/178:55 amYUL - OAK
2 stops18h 12mMultiple Airlines
Deal found 6/5$531
Fri 6/1411:55 amOAK - YYZ
3 stops27h 05mMultiple Airlines
Sat 6/221:25 pmYYZ - OAK
1 stop12h 26mMultiple Airlines
Deal found 6/6$550
Fri 6/141:26 pmOAK - YYZ
2 stops28h 34mMultiple Airlines
Sat 6/221:25 pmYYZ - OAK
1 stop12h 26mMultiple Airlines
Deal found 6/6$569
Fri 6/1411:55 amOAK - YYZ
3 stops27h 05mMultiple Airlines
Sat 6/2212:30 pmYYZ - OAK
3 stops14h 37mMultiple Airlines
Deal found 6/6$581
Fri 6/141:26 pmOAK - YYZ
2 stops28h 34mMultiple Airlines
Sat 6/2212:30 pmYYZ - OAK
3 stops14h 37mMultiple Airlines
Deal found 6/6$597
Thu 6/135:15 amOAK - YUL
2 stops16h 16mMultiple Airlines
Mon 6/178:55 amYUL - OAK
2 stops18h 12mMultiple Airlines
Deal found 6/5$598

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 3,050,429 searches. Data last updated June 6, 2024.
Take a look at some of the best available options we've come across on one-way flights from Oakland to Ontario. Users can also find round-trip Oakland to Ontario flights by using the search form above.
Wed 7/108:43 amOAK - YUL
1 stop26h 57mMultiple Airlines
Deal found 6/5$137
Wed 7/106:30 pmOAK - YUL
2 stops17h 10mMultiple Airlines
Deal found 6/5$151
Thu 7/49:27 pmOAK - YYZ
1 stop22h 18mMultiple Airlines
Deal found 6/5$156
Wed 6/1210:57 pmOAK - YYZ
3 stops19h 03mMultiple Airlines
Deal found 6/5$163
Thu 8/86:20 pmOAK - YUL
1 stop13h 25mSun Country Air
Deal found 6/6$173
Wed 6/125:15 amOAK - YYZ
2 stops14h 37mMultiple Airlines
Deal found 6/6$174
Wed 6/1210:57 pmOAK - YYZ
1 stop21h 43mMultiple Airlines
Deal found 6/6$175
Mon 7/155:45 pmOAK - YYZ
1 stop14h 59mSun Country Air
Deal found 6/4$178
Sun 7/1411:59 pmOAK - YUL
1 stop7h 46mSun Country Air
Deal found 6/6$178

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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$302 - $579

Route

Depart

Return

Price

OaklandToronto Pearson Intl

OAK - YYZ

OAKYYZ

Oakland

Tue 8/13

1 stop13h 40m

Toronto Pearson Intl

Sun 8/18

1 stop16h 24m

$302

OaklandToronto Pearson Intl

OAK - YYZ

OAKYYZ

Oakland

Mon 7/22

1 stop14h 08m

Toronto Pearson Intl

Tue 7/30

1 stop10h 45m

$313

OaklandToronto Pearson Intl

OAK - YYZ

OAKYYZ

Oakland

Tue 8/13

2 stops22h 27m

Toronto Pearson Intl

Sun 8/18

1 stop16h 24m

$316

OaklandToronto Pearson Intl

OAK - YYZ

OAKYYZ

Oakland

Tue 8/13

2 stops22h 27m

Toronto Pearson Intl

Sun 8/18

3 stops24h 25m

$327

OaklandToronto Pearson Intl

OAK - YYZ

OAKYYZ

Oakland

Mon 7/22

1 stop14h 08m

Toronto Pearson Intl

Tue 7/30

2 stops21h 11m

$330

OaklandToronto Pearson Intl

OAK - YYZ

OAKYYZ

Oakland

Sun 7/28

1 stop12h 38m

Toronto Pearson Intl

Sun 8/11

1 stop10h 47m

$410

OaklandMontreal Pierre Elliott Trudeau Intl

OAK - YUL

OAKYUL

Oakland

Sun 7/14

1 stop7h 46m

Montreal Pierre Elliott Trudeau Intl

Thu 7/18

1 stop9h 27m

$414

OaklandToronto Pearson Intl

OAK - YYZ

OAKYYZ

Oakland

Tue 9/24

1 stop29h 30m

Toronto Pearson Intl

Tue 10/1

2 stops19h 47m

$539

OaklandToronto Pearson Intl

OAK - YYZ

OAKYYZ

Oakland

Sat 6/29

1 stop7h 52m

Toronto Pearson Intl

Thu 7/4

2 stops18h 14m

$579

Flights are sorted by cheapest first

Deals found on 6/4

No data available for this route at this time. Please check back soon.

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.

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 6, 2024.
Get a feel of what it's like to fly with Alaska Airlines, Sun Country Air and Delta 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
9,222 reviews

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,222 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.0
Very good
10,368 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Sun Country Air
7.2
Good
593 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

British Airways
6.8
Okay
6,754 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

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 airport do you fly from for flights from Oakland to Ontario?

    For a flight from Oakland to Ontario, you will be flying from Oakland. Oakland (OAK) is just 7.0 mi from the center of the city.

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

    Yes, there are multiple flights from Oakland, California to Region of Ontario for under $400. The cheapest flight booked recently is on Multiple Airlines for just $302, but on average you can expect to pay $337.

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

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

  • What are the most popular routes from Oakland, California to Region of Ontario?

    The most popular route from Oakland, California to Region of Ontario is Oakland - Toronto Pearson Intl. You may also consider Oakland - Toronto Island or Oakland - Montreal Pierre Elliott Trudeau Intl.

  • What does OAK to YYZ mean?

    This is defined as Oakland Airport (OAK) and Toronto Pearson Intl Airport (YYZ). Codes like Toronto Pearson Intl Airport are often used to just call airports uniquely. Ottawa Airport (YOW), Hamilton Airport (YHM), Toronto Island Airport (YTZ), Toronto Kitchener-Waterloo Airport (YKF), London Airport (YXU) are other airports near this flight route and their unique identifiers/IATA codes.

  • 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 Region of Ontario flight deals updated?

    The Oakland, California to Region of Ontario flight deals you see on this page were last updated on 6/5.

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

    Currently, January is the cheapest month in which you can book a flight from Oakland, California to Region of Ontario (average of $237). Flying from Oakland, California to Region of Ontario in July is currently the most expensive (average of $387). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Los Angeles to Pearson Intl flights
San Francisco to Vancouver Intl flights
Los Angeles to Vancouver Intl flights
San Francisco to Pearson Intl flights
San Francisco to Calgary flights
Los Angeles to Calgary flights
Los Angeles to Abbotsford flights
San Diego to Vancouver Intl flights
San Francisco to Abbotsford flights
Santa Ana to Vancouver Intl flights
Ontario to Vancouver Intl flights
Los Angeles to Toronto Island flights
San Francisco to Pierre Elliott Trudeau Intl flights
Las Vegas to Vancouver Intl flights
Ontario to Pearson Intl flights
Los Angeles to Edmonton flights
San Francisco to Toronto Island flights
San Jose to Vancouver Intl flights
Oakland to Vancouver Intl flights
San Francisco to Kitchener-Waterloo flights
Sacramento to Vancouver Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
San Francisco to Edmonton flights
San Diego to Calgary flights
San Francisco to Hamilton flights
San Diego to Pearson Intl flights
San Jose to Pearson Intl flights
Las Vegas to Pearson Intl flights
Los Angeles to Kitchener-Waterloo flights
Santa Ana to Calgary flights
Ontario to Calgary flights
San Diego to Abbotsford flights
Los Angeles to Hamilton flights
Ontario to Pierre Elliott Trudeau Intl flights
Las Vegas to Calgary flights
Sacramento to Pearson Intl flights
Oakland to Pearson Intl flights
Ontario to Edmonton flights
Santa Ana to Edmonton flights
San Jose to Calgary flights
Los Angeles to Winnipeg flights
Las Vegas to Abbotsford flights
Los Angeles to Victoria flights
San Diego to Pierre Elliott Trudeau Intl flights
Oakland to Calgary flights
Santa Ana to Pearson Intl flights
Burbank to Pearson Intl flights
Palm Springs to Vancouver Intl flights
Burbank to Vancouver Intl flights
San Francisco to Québec City flights

Top 2 airlines flying from Oakland to Ontario

Discover the top 2 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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$287Average$502FlexibilityNo cancel feeOn-time67%
DeltaCheapest$615Average$724FlexibilityNo cancel feeOn-timeN/A
Los Angeles to Philadelphia flights
Los Angeles to New Orleans flights
Phoenix to Salt Lake City flights
Los Angeles to New York flights
Miami to London flights
Phoenix to Chicago flights
Chicago to Dallas flights
New Orleans to Las Vegas flights
Denver to Minneapolis flights
Los Angeles to Mexico City flights
Seattle to Honolulu flights
Oakland, California to Quebec 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

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Gaziantep
Flights to Miyakojima Hirara
Flights to Figari-Sud Corse
Flights to Mason City
Flights to Komatsu
Flights to Sendai
Flights to Rhinelander Oneida County
Flights to Constanţa Mihail Kogalniceanu
Flights to Brainerd Crow Wing County
Flights to Reus
Flights to Virac
Flights to Neiva La Marguita
Flights to Pellston Emmet County
Flights to Urumqi
Flights to Bastia Poretta
Flights to Samos
Flights to Hyannis Barnstable
Flights to Provincetown
Flights to Alghero-Fertilia
Flights to Laayoune Hassan I
Flights to Devils Lake
Flights to Vava'u Lupepau'U
Flights to Hakodate
Flights to Edremit/Korfez
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines