CA $74 Cheap Flights from Ontario Intl. Airport (ONT) to Oakland (OAK)

You can find one-way and return flights from ONT to OAK with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ONT to OAK ticket fares go up or down.

The cheapest months to fly from ONT to OAK are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

Southwest Airlines operates 27 direct flights from Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.) every week. This is the only airline offering direct service on this route, so you'll have a consistent option for your travel plans.

Southwest Airlines is one of the cheapest airlines offering nonstop return flights from Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.), with tickets starting from around CA$172 for flights that can be booked for departure within the next year. Southwest Airlines also offers one of the cheapest connecting return flights on this route, with tickets starting from around CA$186 with a layover in Sky Harbor Intl. (PHX). These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

To find a cheap flight from Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.) will differ from traveler to traveler. If you like to fly early, Southwest Airlines offers early morning flights. If price is the most important factor, Southwest Airlines typically offers the lowest fares. Southwest Airlines offers the most daily flights from Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

You'll find approximately 4 nonstop flights per day from Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.). For even more choices, look at flights that include layovers, as there are around 28 connecting flights per day. Some common connection points include Harry Reid Intl. (LAS), Sky Harbor Intl. (PHX), and Sacramento Intl. (SMF).

The earliest flight from Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.) typically departs around 5:00 AM. This service is offered by Alaska Airlines. This is a seasonal service, active only in November. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

You'll find the most flights from Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.) on Fridays, with around 27 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Southwest Airlines, Alaska Airlines, and Delta. Flight schedules are fairly consistent throughout the week, with Fridays offering only slightly more flights compared to other weekdays.

The most popular departure times for flights from Ontario Intl. Airport (ONT) to Oakland Intl. (OAK) are in the early morning, from 6am to 9am. Many major carriers, including Southwest Airlines, Alaska Airlines and Delta, offer flights during this window. Many travellers prefer these times because it allows for an early start to their day in Oakland.

A nonstop flight from Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.) typically takes around 1 hour 18 minutes. This route covers a distance of approximately 581 kilometres. If you opt for a flight with one stop, your travel time will be longer, usually around 6 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.

Yes, you can fly business class or first class between Ontario Intl. Airport (ONT) and Oakland, CA (OAK-Oakland Intl.).

You can fly business class with Delta.

First class cabins are available on Alaska Airlines and Delta.

It's easy to earn miles on a Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to Oakland from Los Angeles - Ontario Intl. (ONT), you can fly directly into Oakland Intl. (OAK). Some flights may connect through major hubs like Harry Reid International Airport (LAS), Sky Harbor Intl. (PHX), or Sonoma County (STS) before reaching Oakland. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Ontario Intl. Airport (ONT) to Oakland, CA (OAK-Oakland Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.