Cheap Flights from Oakland to Ontario

Cheapest flights from Oakland to Ontario

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Oakland to Ontario. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$65

Frontier Airlines

Direct flight

1h 29m

10/25/2025

The cheapest one-way flight from Oakland to Ontario departs on 10/25/2025, is operated by Frontier Airlines and costs $65

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Oakland to Ontario

The fastest flight

1h 25m

Fastest flight from Oakland to Ontario takes 1h 25m

Direct flights

Several times a week

There are direct flights on this route 3 days a week: Su, Th, and Sa

Earliest flight

5:50 AM

Latest flight

9:05 PM

Direct flights count

36

Distance

589km

Timezone difference

0h

The distance between Oakland and Ontario is 589km (365 miles). There are 36 direct flights from Oakland to Ontario. Oakland and Ontario are in the same time zone. Flights from Oakland begin at 5:50 AM. The latest flight from Oakland departs at 9:05 PM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Oakland to Ontario by month

In different months, ticket prices from Oakland to Ontario vary: minimum — $45 (October 2025), maximum — $269 (July 2026). Typically, the flight costs $79–$110.

October 2025

Lowest price

on average:

$45

July 2026

Highest price

on average:

$269

Avg Price

Airlines operating on route

The route Oakland — Ontario is served by many carriers — 5 in total, including United Airlines, American Airlines, Frontier Airlines, Southwest Airlines, and Alaska Airlines. This gives passengers wide opportunities: from finding the lowest fare (from $65) to selecting flights by schedule or service class. Our service aggregates data from multiple booking systems so you can compare offers in one place. This saves time and money: no need to check dozens of sites — just pick the right option and book online.

Starting at $227

Starting at $205

Starting at $65

Starting at $77

Starting at $136

Direct Flights from Oakland to Ontario

A direct flight is the most convenient and comfortable way to fly from Oakland to Ontario, despite the fact that sometimes flights with transfers can cost significantly less.

San Francisco — Los Angeles

SFO — LAX

10/11/2025

Departure

Direct flight

UA2367

Starting at $227

San Francisco — Los Angeles

SFO — LAX

10/24/2025

Departure

Direct flight

AA9327

Starting at $205

San Francisco — Los Angeles

SFO — LAX

10/09/2025

Departure

Direct flight

F93308

Starting at $139

Schedule of direct flights from Oakland to Ontario

A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Oakland to Ontario:

Unable to find information about the schedule of direct flights from

Oakland airports overview

OAK

Metropolitan Oakland International Airport

Airlines flying to this airport

$77

Starting at

$77-100%

on average

SFO

San Francisco International Airport

Airlines flying to this airport

$65

Starting at

$154

on average

Ontario airports overview

ONT

Ontario International Airport

Airlines flying to this airport

$65

Starting at

$65-234%

on average

LAX

Los Angeles International Airport

Airlines flying to this airport

$77

Starting at

$117-84%

on average

SNA

John Wayne Airport - Santa Ana

Airlines flying to this airport

$205

Starting at

$216

on average

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

How much is the cheapest flight ticket from Oakland to Ontario?

The cheapest flight ticket from Oakland to Ontario according to data for the last 48 hours costs $65

When is the best time to buy air tickets on the route Oakland — Ontario?

Often the best time to buy tickets from Oakland to Ontario is 2 months before departure.

When is the cheapest time of year to fly from Oakland to Ontario?

Based on statistics over the past years, the lowest prices for flights from Oakland to Ontario can be found flying in these months: October, November, December.

How long does it take to fly from Oakland to Ontario?

The fastest flights from Oakland to Ontario start from 1 hour 25 minutes in the air.

Which airline can fly direct from Oakland to Ontario?

The following airlines operate direct flights on the route Oakland — Ontario: United Airlines, American Airlines, Frontier Airlines

Special offers and sales on air tickets from Oakland to Ontario

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Oakland to Ontario

Alternative routes

Concord ➜ Ontario•Berkeley ➜ Ontario•Sacramento ➜ Ontario•Stockton ➜ Ontario•San Francisco ➜ Ontario•San Jose ➜ Ontario•Santa Rosa ➜ Ontario•Oakland ➜ Bakersfield•Oakland ➜ Fresno•Oakland ➜ Long Beach•Oakland ➜ Merced•Oakland ➜ Modesto•Oakland ➜ Mexicali•Oakland ➜ Santa Barbara•Oakland ➜ Santa Maria•Oakland ➜ Tijuana•Oakland ➜ Yuma

•••••••••••••••••••

Cheapest one way flight

$65

Frontier Airlines

Direct flight

1h 29m

10/25/2025

The cheapest one-way flight from Oakland to Ontario departs on 10/25/2025, is operated by Frontier Airlines and costs $65

Cheapest round trip flight

—

There is no information about the cheapest roundtrip flight from Oakland to Ontario

The fastest flight