Cheap Flights from Ontario Intl. Airport Airport (ONT)

Expedia can help you take to the skies for less with our cheap SEA flights from $49 from Los Angeles - Ontario Intl. Airport (ONT).* Scroll up to find some of the cheapest flights from ONT here on this page. Or, if you're eager for an impromptu trip that won't break the bank, our flight deals offer plenty of ideas for a budget-friendly break.

*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

You've come to the right place for cheap flights from Los Angeles - Ontario Intl. Airport (ONT). To lock in the best prices, stay flexible with your dates. After choosing your destination, click on the dates to see the cheapest flights from ONT throughout the month. You can also sort the results by "Price (lowest to highest)."

There are 24 international flights from Los Angeles - Ontario Intl. Airport (ONT) per week. Well-known destinations include Guadalajara, Taoyuan City and San Salvador, so grab your passport and get packing!

The three-letter airport code for Los Angeles - Ontario Intl. Airport (ONT) is ONT.

Select from 19 destinations from Los Angeles - Ontario Intl. Airport (ONT) when flying domestically. Some of the popular ones include:

• Phoenix
• Denver
• Dallas
• San Francisco
• Las Vegas

Pick from 4 international destinations from Los Angeles - Ontario Intl. Airport (ONT) and see more of what the world has to offer. Guadalajara and Taoyuan City are the top routes from this airport.

You'll have multiple airlines from Los Angeles - Ontario Intl. Airport (ONT) to select from. These include:

• Southwest Airlines (WN)
• American Airlines (AA)
• United Airlines (UA)
• Delta Air Lines (DL)
• Alaska Airlines (AS)

Every day, there's an average of 65 departure flights from Los Angeles - Ontario Intl. Airport (ONT).

With 2 terminals, Los Angeles - Ontario Intl. Airport (ONT) isn't too tricky to find your way around. Still, it pays to investigate exactly where you'll be departing from — 2 or 4. Check the details on your booking or contact your airline directly before you head off. Get your trip off to a good start by arriving two hours in advance of domestic flights. For international flights, you'll want to arrive three hours before your departure time. Both recommendations allow for potential holdups at security or customs, time needed to check in bags and finding your gate.

ONT is located about 4 mi east of central Ontario. If you're traveling by car or ride-share, expect it to take 10 minutes or so to arrive at the terminal, depending on traffic conditions. Public transportation takes about 1 hour and 28 minutes. Be sure to factor in enough travel time for unforeseen delays.

Avoid the stress of a last-minute rush to the airport by checking in to SpringHill Suites by Marriott Ontario Airport/Rancho Cucamonga, 1 mi from ONT. This comfy getaway has a swimming pool and a terrace. Best Western Plus Ontario Airport & Convention Center is another handy choice, especially if you've booked an early flight from Los Angeles - Ontario Intl. Airport (ONT). It features a swimming pool and premium bedding and is only 1 mi away.

Chill out or finish up some work before your flight from ONT in a comfy airport lounge. Typically, access is reserved for first-class or business passengers and frequent flyers with airlines from Los Angeles - Ontario Intl. Airport (ONT). If you're not eligible, you may be able to purchase a one-day pass for entry. Visit the airport's website for more information.

John Wayne Airport (SNA) is a convenient alternative to Los Angeles - Ontario Intl. Airport (ONT). This hub is located 30 mi from ONT.

You may be able to cancel your flight from ONT free of charge within 24 hours of booking. However, some flights are nonrefundable, and you could receive a flight credit from the airline for a future trip. For more information, refer to the terms and conditions of your booking, or visit our Customer Service Portal.