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Oakland

$137+ Cheap flights from Ontario to Oakland, CA (OAK)

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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — OAK
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Ontario to Oakland

Keep the following information in mind while searching for Ontario to Oakland flight deals. Data was last updated May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$288
(Mytrip)

One-way from

$137
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$374
Provider with most accurate pricing for Toronto (YTO)-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Toronto (YTO)-San Francisco flights.
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From Ontario to Oakland
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One-way flight from Ontario to Oakland
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Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Ontario to Oakland

Cheapest flights from Ontario to Oakland
Explore the most affordable flight options available from Ontario to Oakland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/811:00 amYYZ - OAK
3 stops26h 56mMultiple Airlines
Tue 6/175:30 amOAK - YYZ
2 stops21h 42mMultiple Airlines
Deal found 4/29$288
This Trip.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/146:10 amYOW - OAK
2 stops20h 16mMultiple Airlines
Sat 6/215:30 amOAK - YOW
2 stops16h 11mMultiple Airlines
Deal found 4/30$359
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/165:45 pmYYZ - OAK
1 stop9h 10mDelta
Wed 7/236:00 amOAK - YYZ
2 stops13h 58mDelta
Deal found 4/30$364
This Alaska Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/164:45 pmYYZ - OAK
1 stop9h 53mAlaska Airlines
Tue 10/217:50 pmOAK - YYZ
1 stop16h 10mAlaska Airlines
Deal found 4/28$397
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/27:00 amYUL - OAK
2 stops18h 28mDelta
Mon 7/76:00 amOAK - YUL
2 stops32h 54mDelta
Deal found 4/29$462
This Mytrip deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/158:15 amYUL - OAK
1 stop11h 06mMultiple Airlines
Sun 6/225:10 pmOAK - YUL
3 stops28h 33mMultiple Airlines
Deal found 4/30$470
This Expedia deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:00 amYKF - OAK
2 stops16h 15mMultiple Airlines
Mon 5/128:00 amOAK - YKF
2 stops13h 46mMultiple Airlines
Deal found 4/28$773
This Expedia deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:00 amYHM - OAK
2 stops16h 15mMultiple Airlines
Mon 5/128:00 amOAK - YHM
2 stops13h 41mMultiple Airlines
Deal found 4/28$792

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Oakland 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 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Ontario to Oakland that are best for you.

Fly from

Ontario

Fly to

Oakland

Route

Depart

Return

Price

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sun 6/8

11:00 am-10:56 am

3 stops26h 56m

Oakland

Tue 6/17

5:30 am-6:12 am

2 stops21h 42m

$288

OttawaOakland

YOW - OAK

YOWOAK

Ottawa

Sat 6/14

6:10 am-11:26 pm

2 stops20h 16m

Oakland

Sat 6/21

5:30 am-12:41 am

2 stops16h 11m

$359

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Wed 7/16

6:30 am-4:14 pm

2 stops12h 44m

Oakland

Wed 7/23

6:00 am-10:58 pm

2 stops13h 58m

$364

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 10/16

4:45 pm-11:38 pm

1 stop9h 53m

Oakland

Tue 10/21

7:50 pm-3:00 pm

1 stop16h 10m

$397

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Wed 7/2

7:00 am-10:28 pm

2 stops18h 28m

Oakland

Mon 7/7

6:00 am-5:54 pm

2 stops32h 54m

$462

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Sun 6/15

8:15 am-4:21 pm

1 stop11h 06m

Oakland

Sun 6/22

5:10 pm-12:43 am

3 stops28h 33m

$470

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Wed 6/18

9:45 am-8:43 pm

1 stop13h 58m

$137

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 6/5

5:50 pm-11:49 pm

1 stop8h 59m

$210

HamiltonOakland

YHM - OAK

YHMOAK

Hamilton

Fri 5/16

6:00 am-10:56 am

3 stops31h 56m

$259

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Tue 9/2

12:45 pm-12:23 pm

2 stops26h 38m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 12 results
1
2

Best time to book a flight from Ontario to Oakland

Have a flexible travel schedule? Discover the best time to fly to Oakland from Ontario 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Oakland

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

Currently, April is the cheapest month in which you can book a flight from Region of Ontario to Oakland, California (average of $183). Flying from Region of Ontario to Oakland, California in November is currently the most expensive (average of $259). 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.

Rainfall in Oakland by month

Plan your trip to Oakland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Oakland, California ranges from 0.0 - 4.8 inches per month. January is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Oakland, California when rainfall is around 0.0 in.

Temperature in Oakland by month

Plan your trip to Oakland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Oakland, California, 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 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Oakland

Get insights into the airlines that provide service to Oakland. 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 Oakland. Reviews last updated May 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines and Delta from Ontario to Oakland to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Oakland. 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 into for flights to Oakland from Ontario?

    Most people fly into Oakland (OAK) if they book a flight to Oakland from Ontario. Oakland is conveniently located just 7.0 mi from Oakland’s city center.

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

    While some choose either Montreal Pierre Elliott Trudeau Intl - Oakland or Toronto Region of Waterloo Intl - Oakland, Toronto Pearson Intl - Oakland is the most popular route from Region of Ontario to Oakland, California.

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

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Region of Ontario to Oakland, California (average of $183). Flying from Region of Ontario to Oakland, California in November is currently the most expensive (average of $259). 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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