When you’re planning international travel from Pomona, California, you won’t find a massive passenger terminal in town. Instead, the smart move is to head about 10 miles east to Ontario International Airport (ONT). This full‑service airport punches well above its size, connecting the Inland Empire to destinations across Mexico, Asia, and beyond. Whether you’re chasing a quick getaway to Guadalajara, a business trip to Taipei, or a connection to a global hub, Ontario International offers a mix of full‑service and low‑cost carriers that make it as easy as any mega‑hub—without the crowds that can grind travel to a halt.

A busy international airport terminal at Pomona, California, with airplanes from various airlines parked at gates, passengers walking with luggage, and ground service vehicles on the tarmac.

What sets ONT apart is its blend of convenience, competitive fares, and a growing list of international airlines. The airport’s layout makes it easy to navigate, ground transportation options are straightforward, and you’ll regularly see fare sales on long‑haul routes that surprise travelers used to Los Angeles International (LAX) prices. In this guide, we’ll walk you through the best international airlines at Ontario, the flight experience you can expect, tips for scoring cheap tickets, and how to turn the airport into your launchpad for exploring Southern California.

Ontario International Airport: Your International Gateway Near Pomona

Pomona sits at a sweet spot in the Los Angeles basin—close enough to major attractions but far from the congestion that clogs LAX. Ontario International Airport, located just off the I‑10 and I‑15 freeways, fills the role of the area’s primary airport for international travel. It serves more than 20 nonstop destinations, including key cities in Mexico, an expanding number of Central American routes, and a direct long‑haul connection to Asia. With a modern terminal, shorter security lines, and ample parking, it’s a practical alternative that locals and savvy visitors have come to rely on.

The airport’s list of international carriers keeps growing. You’ll find legacy U.S. airlines that connect through their domestic hubs, a Taiwanese flag carrier linking Southern California to Taipei, and Mexican low‑cost airlines that have made cross‑border travel far more accessible than it was a decade ago. Because of relatively lower operating costs and airport fees, ONT often passes savings along to travelers, making it a strategic starting point for budget‑conscious international trips.

Top International Airlines Serving Ontario International Airport

Choosing the right airline shapes everything from your check‑in experience to the comfort you enjoy at 35,000 feet. Here’s a detailed look at the international carriers you’ll find at Ontario, what they do best, and how to maximize your trip when flying out of this Inland Empire airport.

Alaska Airlines – Relaxed Travel with West Coast Style

Alaska Airlines may be best known for its domestic network along the Pacific coast, but at Ontario International it also serves as a reliable bridge to several Mexican resort cities. Nonstop flights to San José del Cabo and Puerto Vallarta are staples, with seasonal service to Mazatlán and other warm‑weather getaways. Because Alaska is a member of the oneworld alliance, you can earn and redeem miles with partners like American Airlines, British Airways, or Cathay Pacific—a smart play if you’re building toward a bigger international itinerary.

In the air, Alaska’s Main Cabin offers comfortable seats and a buy‑on‑board menu inspired by the West Coast, while First Class passengers get wider recliners, premium drinks, and earlier boarding. All aircraft feature Wi‑Fi so you can stay connected. Alaska’s mobile app handles check‑in, bag tracking, and real‑time updates, and the airline consistently ranks high for on‑time performance. If you book early and keep an eye on fare sales, Alaska can deliver some of the cheapest international fares out of Ontario.

American Airlines – Extensive Global Network Through Key Hubs

American Airlines doesn’t operate a dizzying number of international nonstops from Ontario, but what it does offer is seamless connectivity via its massive domestic hub network. From ONT, American runs frequent flights to Dallas/Fort Worth (DFW) and Phoenix (PHX), two of its largest gateways to Latin America, Europe, and Asia. A short hop to DFW can put you on a nonstop flight to London, Tokyo, São Paulo, or dozens of other international cities—all on a single ticket with protected connections.

American’s Main Cabin Extra seats give you extra legroom for a small upcharge, while Flagship® Business on long‑haul legs from the hubs provides lie‑flat seats, elevated dining, and lounge access. Even on the shorter Ontario‑to‑hub flights, you’ll find Wi‑Fi and in‑seat power. AAdvantage members can accumulate miles on these itineraries, and American often runs generous bonus‑mile promotions. For travelers who want the breadth of a global network without trekking to LAX, American at ONT is a top pick.

Delta Air Lines – Dependable Service to the World

Delta has carved out a loyal following at Ontario International by focusing on reliability and a smooth end‑to‑end experience. From ONT, Delta flies nonstop to Salt Lake City and Atlanta—two strategic hubs that open doors to hundreds of international destinations. Whether you’re connecting to Delta’s daily service to Amsterdam, Paris, or Seoul, or heading south to Mexico, the itinerary is easy to manage.

Delta One® business class on long‑haul segments offers lie‑flat suites and premium dining, and Delta Comfort+ gives Main Cabin travelers extra space and dedicated overhead bins. Every Delta jet serving Ontario has Wi‑Fi, and the airline’s Fly Delta app makes it simple to track bags, rebook during irregular operations, and even order meals ahead. Delta’s operational consistency and helpful ground staff make it an excellent choice for international trips where you just want things to work.

United Airlines – Coast‑to‑Coast and Beyond

United Airlines may not grab headlines at Ontario the way it does at LAX, but its presence here is meaningful for international travelers. Nonstop flights to San Francisco, Denver, and Houston Intercontinental give you direct access to United’s three most important connecting complexes. From SFO you can jump across the Pacific to Tokyo, Shanghai, or Sydney; from Denver you can reach Latin America easily; and Houston is a springboard to markets throughout Mexico, the Caribbean, and South America.

United’s premium transcontinental service on select routes offers lie‑flat seats and impressive meal service, while economy travelers benefit from satellite Wi‑Fi and personal device entertainment on most flights. MileagePlus members can use miles to upgrade or book award tickets, and United frequently releases saver‑level awards that make international travel affordable. The carrier’s presence at ONT means you can skip the LAX traffic and still tap into one of the world’s largest route networks.

If you’re heading to East or Southeast Asia, China Airlines stands out as Ontario International’s most distinctive international carrier. The Taiwanese airline operates a nonstop flight between Ontario and Taipei (TPE) several times a week, using a Boeing 777‑300ER with premium economy and business class cabins. This is the only regularly scheduled trans‑Pacific passenger route from any Los Angeles‑area airport besides LAX, and it turns a trip to Taipei, Hong Kong, or Bangkok into a one‑stop affair from Pomona’s doorstep.

The in‑flight experience blends Taiwanese hospitality with modern amenities. Business class passengers can stretch out in fully flat seats, dine on multi‑course meals designed by acclaimed chefs, and enjoy an extensive entertainment library. Economy class is comfortable, with ample legroom and free checked baggage for most fare types. China Airlines’ Dynasty Flyer program lets you earn miles toward future flights, and the airline’s partnership with Delta and other SkyTeam members extends that reach even further. For Asia‑bound travelers who value time and convenience, this nonstop link is a game‑changer. Visit China Airlines to check schedules and book.

Volaris – Low‑Cost Flights to Mexico

Volaris has transformed cross‑border travel between the United States and Mexico, and Ontario International is one of its most active gateways. The ultra‑low‑cost carrier offers frequent nonstop flights to Guadalajara, Mexico City, and Morelia, often at prices that make bus travel look expensive. Volaris’s pricing model charges a bare‑bones fare for a seat, with optional add‑ons for checked bags, seat selection, and meals—so you only pay for what you actually need.

Despite the no‑frills label, Volaris maintains a modern fleet and a reliable operation. The booking process on volaris.com is straightforward, and the airline’s v.club membership unlocks deeper discounts and priority access to sales. If you’re planning a quick trip to visit family in Mexico or a weekend getaway to Jalisco, Volaris from ONT is tough to beat. Just keep an eye on baggage policies and fare rules to avoid surprise fees at the airport.

Flight Experience and Passenger Comfort

A busy airport terminal at Pomona California with several international airplanes parked at gates and passengers moving around the area.

No matter which airline you pick, the overall experience at Ontario International is designed to keep stress low. The terminal is compact and easy to walk through, so you won’t be racing to cover half a mile to reach your gate. Despite its modest size, the airport provides the services and comforts that matter when you’re about to board a long flight.

Cabin Classes and Amenities

International flights from ONT span a wide range of service levels. Major U.S. carriers offer basic economy fares for the budget‑minded, main cabin options that include a carry‑on and the ability to choose seats, and premium cabins with larger seats, priority boarding, and sometimes lounge access (available at connecting hub airports). China Airlines’ long‑haul service brings a meaningful premium economy that sits between main cabin and business, offering extra recline and upgraded meals—a solid investment for travelers who want comfort without the full business‑class price.

Across the board, you’ll find Wi‑Fi available on the vast majority of jets serving Ontario. Whether you need to send a few last‑minute work emails or stream a movie, staying connected is rarely a problem. Power outlets and USB ports are standard, and most airlines now let you pre‑order special meals or use apps to customize your in‑flight experience. If you’re flying in the front cabin, expect amenity kits, noise‑canceling headphones, and elevated dining. Even in economy, blankets and pillows are usually provided on longer routes.

Check‑In and Boarding at Ontario Airport

One of the biggest advantages of flying international from Ontario is that the ground experience is far less frantic than at larger airports. Online check‑in opens 24 hours before departure, and the airport’s self‑service kiosks and automated bag drops help you move through the terminal quickly. Mobile boarding passes are accepted at all TSA checkpoints, so you can skip the paper entirely if you prefer.

Security wait times are generally shorter than at LAX, though it’s still wise to arrive at least two hours before an international flight to allow for any unexpected delays. TSA PreCheck lanes are available, and the airport’s layout means you’re never far from your gate after clearing security. Boarding typically begins 30–40 minutes before departure, with premium cabin passengers, active‑duty military, and families called first. Gate areas feature comfortable seating and charging stations, so you can relax or get some last‑minute work done before takeoff.

Finding the Best Flight Deals from Ontario

Ontario International’s competitive environment can yield impressive savings if you know where to look. Because several budget‑conscious carriers operate out of ONT, fare wars are common, and you can often find international round‑trip tickets for hundreds less than what LAX would demand.

Start by setting up fare alerts on aggregator sites, but always compare prices on the airline’s own website before booking, since loyalty members and newsletter subscribers frequently receive exclusive discounts. Booking 60 to 90 days ahead usually gets you the best price on international routes, though last‑minute sales can pop up when airlines need to fill seats. Flexible date searches let you see if moving your trip by a day or two drops the fare dramatically.

Consider using airline miles strategically. Many U.S. carriers allow you to book connecting international itineraries that start at ONT for the same number of miles as from LAX—sometimes even fewer. If you’re willing to position yourself to Ontario, you might find award availability on dates that are otherwise sold out at the bigger airports. And don’t ignore the low‑cost focus of Volaris and similar carriers; when you travel light, those base fares can beat even heavily discounted legacy tickets.

Connecting to Los Angeles and Exploring the Region

Ontario International isn’t just a departure point—it’s also a gateway to Southern California’s best attractions. Once you collect your bags or park your car, you’re minutes from major freeways and a short drive to world‑famous destinations.

Transportation to Los Angeles and Beyond

Rental car counters are located right in the terminal, and most major companies operate on‑site. If you’re heading into Los Angeles, the drive to downtown is about 45 minutes via the I‑10, though rush hour can stretch that. Rideshare services like Uber and Lyft pick up curbside, and shared‑ride shuttles offer a budget‑friendly option for reaching LAX, Santa Monica, or even Anaheim.

For those who prefer public transit, the Metrolink San Bernardino Line stops at the Ontario‑East station a short shuttle ride away, connecting you to downtown L.A. and Union Station. From there, you can catch Amtrak, the Metro Red Line, or a bus to Hollywood, Pasadena, and other neighborhoods. This setup works well if you want to avoid freeway stress and parking fees.

Nearby Attractions for International Travelers

Pomona itself is home to the Fairplex, which hosts the L.A. County Fair, car shows, and the NHRA Winternationals. The Wally Parks NHRA Motorsports Museum sits on the grounds and is worth a visit for gearheads. Less than 30 miles southwest, Disneyland and the Anaheim Resort area pull in families from around the world. You can reach the parks in about 40 minutes by car or a slightly longer rideshare trip.

If you’re willing to venture a bit further, Hollywood’s Walk of Fame, the TCL Chinese Theatre, and the Griffith Observatory are all reachable within an hour’s drive when traffic cooperates. For a deep dive into L.A.’s cultural scene, the Miracle Mile museums—LACMA, the Petersen Automotive Museum, and the La Brea Tar Pits—sit just north of downtown. Visit California’s official site can help you build a full itinerary that pairs perfectly with your international flight.

Key Takeaways for International Travelers from Pomona

  • Ontario International Airport (ONT) is the most practical and often most affordable international gateway for Pomona residents and visitors.
  • Alaska, American, Delta, and United connect you to their global hubs with one‑stop access to hundreds of international cities.
  • China Airlines offers the only nonstop trans‑Pacific route from the region outside of LAX, flying to Taipei with seamless onward connections in Asia.
  • Volaris provides ultra‑low‑cost nonstops to several major Mexican cities, making it a go‑to for budget‑conscious cross‑border travel.
  • Ontario’s terminal is easy to navigate, with shorter security lines, free Wi‑Fi, and plenty of dining and charging options to start your trip relaxed.
  • Fare sales and the airport’s lower cost structure often mean you can save significantly compared to flying out of LAX, particularly when booking 60–90 days in advance or using frequent‑flyer miles.

Pomona’s international air travel story is really Ontario International’s story—a story of growing connectivity, reliable service, and genuine convenience. By knowing which airlines fly where and what to expect on the ground and in the air, you can build an itinerary that fits your schedule, your budget, and your travel style without the usual airport anxiety. Whether you’re leaving on a business trip, a family vacation, or a solo adventure, ONT delivers an international travel experience that’s refreshingly human‑scaled and surprisingly well‑connected.