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Uncover the best deals on Oakland to Ontario flights by comparing fares from hundreds of airlines and agencies.
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
$198
Frontier Airlines
• 1 stop
• 6h 49m
Aug 28 – Aug 31
The cheapest round trip flight from Oakland to Ontario (OAK-ONT-OAK) is currently $198
Fastest Flight
2h 5m
The fastest nonstop flight from Oakland to Ontario (OAK-ONT) takes 2h 5m
Top Airlines Flying from Oakland to Ontario
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 28 - Aug 31, Economy
Oakland → Ontario
6h 49m
12:13 PM - 4:22 PM • 1 stop
Oakland → Ontario
6h 42m
3:40 PM - 7:42 PM • 1 stop
Frontier Airlines
Aug 28 - Aug 31, Economy
Oakland → Ontario
18h 46m
8:37 PM - 8:03 AM • 1 stop
Oakland → Ontario
6h 42m
3:40 PM - 7:42 PM • 1 stop
Frontier Airlines
Sep 02 - Sep 03, Economy
Oakland → Ontario
22h 15m
7:45 PM - 9:20 AM • 1 stop
Oakland → Ontario
2h
4:00 PM - 5:20 PM • nonstop
Southwest Airlines
Sep 02 - Sep 03, Economy
Oakland → Ontario
2h 5m
8:30 PM - 9:55 PM • nonstop
Oakland → Ontario
15h 10m
5:15 AM - 2:25 PM • 1 stop
Southwest Airlines
Sep 02 - Sep 03, Economy
Oakland → Ontario
22h 15m
7:45 PM - 9:20 AM • 1 stop
Oakland → Ontario
16h 50m
2:00 PM - 12:10 AM • 1 stop
Southwest Airlines
Flying to Ontario soon? We've surfaced some of the most affordable last-minute flights from Oakland to Ontario, ideal for urgent plans or spontaneous trips.
Aug 28 - Aug 31, Economy
Oakland → Ontario
6h 49m
12:13 PM - 4:22 PM • 1 stop
Oakland → Ontario
6h 42m
3:40 PM - 7:42 PM • 1 stop
Frontier Airlines
Aug 28 - Aug 31, Economy
Oakland → Ontario
18h 46m
8:37 PM - 8:03 AM • 1 stop
Oakland → Ontario
6h 42m
3:40 PM - 7:42 PM • 1 stop
Frontier Airlines
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 12:13 pm 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 WN : USD 511
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 8:37 pm
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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