Cheap Flights from Ontario to Portland (ONT to PDX) from $157.00

Planning a trip from Southern California to the Pacific Northwest? Booking your flights from Ontario (ONT) to Portland (PDX) with Globitude Travels is fast and simple. Whether you are traveling for business or exploring Oregon's famous food scene and scenic outdoor beauty, we help you compare top airlines and secure great economy rates starting at just $149.

📞 Call 1-856-513-6369

Cheapest fares from Ontario to Portland

Lowest fare found per airline on the ONT → PDX route, with our discounted phone-deal price.

Airline	Cabin	Found fare	Our discounted fare	Fare found on
American Airlines	Economy	~~$262.21~~	$157.33	Sep 20, 2026	Book
Frontier	Economy	~~$282.98~~	$169.79	Sep 20, 2026	Book
Alaska Airlines	Economy	~~$385.70~~	$231.42	Sep 20, 2026	Book
United Airlines	Economy	~~$386.40~~	$231.84	Sep 20, 2026	Book
Delta Air Lines	Economy	~~$523.40~~	$314.04	Sep 20, 2026	Book

Discounted fares are negotiated phone deals from our vendor network and may not appear in online search results — call 1-856-513-6369 to lock one in. Fares were found on the dates shown, are per person in USD, and change with availability.

Flying from Ontario to Portland

Departing from Ontario International Airport (ONT) offers a convenient, low-stress alternative to larger Southern California hubs. Once you board, your journey takes you straight to Portland International Airport (PDX), known for its friendly layout, iconic carpet, and easy access to downtown via public transit or rideshare.

Portland is famous for its vibrant food cart pods, craft breweries, and distinct neighborhoods like the Pearl District and Alberta Arts District. The local climate features mild, sunny summers and cooler, rainy winters, making packable layers essential. With airline options including Frontier, Alaska Airlines, Delta Air Lines, and United Airlines, finding a trip that fits your budget and schedule is effortless through Globitude Travels.

Money-saving tips for this route

Book your ONT to PDX flight at least three to four weeks in advance to secure the lowest economy rates.
Consider flying on weekdays like Tuesday or Wednesday when airline demand and ticket prices are typically lower.
Pack light or select a fare tier that includes baggage allowance to avoid extra fees on budget carriers.
Sign up for price alerts with Globitude Travels so you are notified immediately when fares from Ontario to Portland drop.

Frequently asked questions

Which airlines fly from Ontario (ONT) to Portland (PDX)?

Globitude Travels offers competitive economy fares on Frontier, Alaska Airlines, Delta Air Lines, and United Airlines for flights from Ontario to Portland.

What is the cheapest fare available from ONT to PDX?

Currently, economy fares on this route start as low as $149 with Frontier, though prices vary depending on travel dates and availability.

Are there nonstop flights from Ontario to Portland?

Both direct and connecting flights are available on this route depending on the airline, so check options when searching on Globitude Travels.

What is generally the cheapest month to book flights to Portland?

Traveling during the shoulder seasons in early spring or late autumn often yields lower airfares compared to the peak summer travel months.

How can I book my ONT to PDX flights over the phone?

You can call the Globitude Travels customer service team directly to speak with a travel agent who will assist you in finding and booking the best available fares.

Related routes

Ontario to Atlanta Ontario to Baton Rouge Ontario to Belize City Ontario to Bogota Ontario to Boston Ontario to Buffalo Anchorage to Portland Atlanta to Portland Boston to Portland Cedar Rapids to Portland Charleston to Portland Chicago to Portland All routes →

Why book with Globitude Travels

💸 Transparent pricing
The fare you see is all-inclusive — taxes and fees shown before you pay, never after.

🤝 Real travel experts
Every booking is reviewed by our team, and phone-only vendor deals can beat any online price.

🎧 24/7 human support
Before, during and after your trip — changes, cancellations and special requests handled by people.

🔒 Secure checkout
Encrypted payment, verified confirmation emails, and your PNR delivered as soon as the airline issues it.

Globitude Travels is an independent travel agency — call 1-856-513-6369 or use the search above to compare live fares on this route. See our terms, privacy policy, refund policy and service fees for full details, or contact us any time.

Page updated August 19, 2026 · fare data refreshed automatically from live flight searches.