Cheap Flight Tickets from Oakland (OAK) to Ontario (ONT), Starting at $381

Good to Know: Cheapest and Fastest OAK - ONT Flights

Useful information for finding best airline tickets from Metropolitan Oakland International to Ontario International on your next trip.

Cheapest Round Trip Flight

$553

DL Delta Airlines • 1 stop • 44h 12m

Aug 11 – Aug 16

The cheapest round trip flight from Oakland to Ontario (OAK-ONT-OAK) is currently $553

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Cheapest Direct Flight

$381

WN Southwest Airlines • nonstop • 2h 5m

Aug 15

The cheapest nonstop flight from Oakland to Ontario (OAK-ONT) is currently $381

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Fastest Flight

2h

The fastest nonstop flight from Oakland to Ontario (OAK-ONT) takes 2h

Top Airlines Flying from Oakland to Ontario

Delta Airline, DL

Delta Airlines

Southwest Airlines-WN

Southwest Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Oakland (OAK) to Ontario (ONT)

Compare and book low fare round-trip air tickets from Oakland to Ontario. Ideal for travelers with confirmed return itineraries.

Aug 11 - Aug 16, Economy
DL
Oakland → Ontario
44h 12m
6:00 AM - 8:52 AM • 1 stop
DL
Oakland → Ontario
17h 29m
1:07 PM - 11:56 PM • 1 stop
$553
Delta Airlines
Aug 11 - Aug 16, Economy
DL
Oakland → Ontario
17h 4m
6:00 AM - 4:24 PM • 1 stop
DL
Oakland → Ontario
27h 21m
7:15 AM - 11:56 PM • 1 stop
$553
Delta Airlines
Aug 11 - Aug 16, Economy
DL
Oakland → Ontario
25h 52m
5:00 PM - 8:52 AM • 1 stop
DL
Oakland → Ontario
17h 29m
1:07 PM - 11:56 PM • 1 stop
$553
Delta Airlines
Aug 11 - Aug 16, Economy
DL
Oakland → Ontario
31h 56m
5:00 PM - 12:16 PM • 1 stop
DL
Oakland → Ontario
17h 29m
1:07 PM - 11:56 PM • 1 stop
$553
Delta Airlines
Aug 11 - Aug 16, Economy
DL
Oakland → Ontario
27h 25m
6:00 AM - 10:45 PM • 2 stops
DL
Oakland → Ontario
27h 21m
7:15 AM - 11:56 PM • 1 stop
$557
Delta Airlines
Aug 11 - Aug 16, Economy
DL
Oakland → Ontario
10h 16m
6:00 AM - 12:16 PM • 1 stop
DL
Oakland → Ontario
10h 51m
5:05 PM - 11:56 PM • 1 stop
$1170
Delta Airlines

Fly from Oakland to Ontario with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Oakland to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Oakland to Ontario Flights

What are the airports in Oakland?
OAK
What’s the most popular airline flying from OAK to ONT?
The most popular airline flying from Oakland to Ontario are
Can I fly from OAK to ONT non-stop?
Yes, you can fly OAK to ONT non-stop on
Which airlines fly nonstop between Oakland and Ontario?
The non-stop flights between Oakland and Ontario are .
What’s the earliest departure time from OAK to ONT Airport?
The earliest flight leaves OAK at 6:00 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Oakland to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from OAK to ONT?
Read the fare rules of the Oakland to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Oakland and Ontario?
operate flights between Oakland and Ontario
How long does a flight from Oakland to Ontario take?
It takes approximately 1 hour to fly non-stop from OAK to ONT, which is 361.9 miles by air.
Which airlines provide the cheapest flights from Oakland (OAK) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from OAK were found on DL : USD 557
Do I need a passport to fly between OAK and ONT?
No
What’s the latest departure time from OAK to ONT ?
The last flight leaves OAK at 6:25 pm

Essential Information for Booking Flights from Oakland (OAK) - AI Insights

What's the cheapest airline from oak to ont?
You can find affordable flights from Metropolitan Oakland International Airport (oak) to Ontario International Airport (ont) on Alaska Airlines. For a round-trip economy flight, consider booking at least 52 days in advance to secure low fares. Look for budget-friendly options with airfares starting from $X, ideal for solo travelers or those looking for the cheapest airline tickets.
What's the popular airline to fly from oak to ont?
You can fly from Metropolitan Oakland International Airport (oak) to Ontario International Airport (ont) on Southwest Airlines. For a round trip journey, book your flights at least 52 days in advance to get budget-friendly airfares. This airline offers affordable airfare options for solo travelers.
What's the cheapest day of the week to fly from oak to ont?
The cheapest day to fly from Metropolitan Oakland International Airport (oak) to Ontario International Airport (ont) is Thursday. Flying on this day can help you find budget-friendly flights, such as low fares or airfares, which are often cheaper than flying on other days of the week.
What's the cheapest month to fly from oak to ont?
The cheapest month to fly from Metropolitan Oakland International Airport (oak) to Ontario International Airport (ont) is September. This is because airfares tend to be lower during this time, making it a budget-friendly option for your round-trip journey. You can expect to find affordable flights with airlines offering savings on airfare.
Which airline/airlines fly from oak to ont?
The airlines that fly from Metropolitan Oakland International Airport (oak) to Ontario International Airport (ont) include Volaris Airline (Y4), United Airlines (UA), Frontier Airlines (F9), Southwest Airlines (WN), Viva Aerobus (VB), American Airlines (AA), Alaska Airlines (AS), Aeromexico (AM), and Delta Airlines (DL). You can find affordable airfares on these airlines for your round-trip journey.
What is the cheapest airfare from Metropolitan Oakland International to Ontario International for a round-trip economy flight?
The cheapest airfare from Metropolitan Oakland International to Ontario International for a round-trip economy flight with Alaska Airlines (AS) is available on their website, fareleaders.com.
How far in advance can I book flights with airlines like Volaris Airline to get the best prices?
It is recommended to book flights at least 52 days in advance to get the best prices with airlines like Volaris Airline.
Can I find cheapflights and airfares on fareleaders.com for my Milwaukee trip?
Yes, you can find cheapflights and airfares on fareleaders.com for your Milwaukee trip. Simply enter your travel dates and destinations to get the best deals.
Is it possible to book busco flights or need assistance with booking flights through an agencia?
No, you do not need assistance with booking flights through an agencia. You can book directly on fareleaders.com.
What is the best time to plan a weekend viajar from Ontario International Airport?
The best time to plan a weekend viajar from Ontario International Airport is in September, when prices tend to be lower.
How do I use fareleaders.com website to find the cheapest airflights and fares?
To find the cheapest airflights and fares on fareleaders.com, simply enter your travel dates and destinations, and our search engine will provide you with the best options.

Oakland (OAK) to Ontario (ONT): Airport Information

Origin Airport Metropolitan Oakland International , Oakland, US
Destination Airport Ontario International , Ontario, US
Distance 362 miles

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