Cheap United flights from Portland to Ontario (PDX to ONT)

Find The Best Day To Fly from Portland to Ontario

ONT From PDX Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
La Quinta Inn & Suites by Wyndham Moreno Valley

La Quinta Inn & Suites by Wyndham Moreno Valley

3 out of 5
per person
Sep 4 - Sep 9
found 21 hours ago
Roundtrip flight included
Portland (PDX) to Ontario (ONT)
@ Marbella Lane - Rejuvenating Single-family Home

@ Marbella Lane - Rejuvenating Single-family Home

3 out of 5
Save 100% on your flight
per person
Aug 4 - Aug 8
found 24 hours ago
Roundtrip non-stop flight included
Portland (PDX) to Ontario (ONT)
Dynasty Suites Redlands

Dynasty Suites Redlands

3 out of 5
Save 100% on your flight
per person
Sep 4 - Sep 9
found 21 hours ago
Roundtrip flight included
Portland (PDX) to Ontario (ONT)
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Frequently asked questions

Can I catch a flight from Portland Intl. Airport (PDX) to Los Angeles - Ontario Intl. Airport (ONT) right now?
For info on any current ONT travel advice and quarantine requirements, go to our Covid-19 Travel Advisor. Look before you arrange your flight, so you don't get caught up.
What terminal is United Airlines at PDX Airport?
Once you've been given the boarding pass for your flight from Portland Airport to Los Angeles - Ontario Intl. Airport (ONT), you should be able to identify exactly which terminals United Airlines flies into and out of. If not, consult your carrier or do some online research for that information.
Are there United Airlines non-stop flights from PDX to ONT?
Unfortunately, you can't fly direct from PDX to Ontario Airport with United Airlines. Be prepared to make a stopover if you have to travel on this particular route and airline.
How long is a United Airlines flight from PDX to ONT?
No nasty jet lag, no stiff legs --- there are so many reasons to love short-haul flights. If you've reserved a seat with United Airlines from PDX to Ontario Airport, the trip will zoom by in around 3 hours and 24 minutes.
How many direct and indirect flights does United Airlines fly from PDX to ONT?
You'll find there are at least 4 United Airlines flights daily from PDX to ONT.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Los Angeles - Ontario Intl. Airport (ONT), please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.
United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to Ontario

Ontario Airport Hotel & Conference Center

Ontario Airport Hotel & Conference Center

3.5 out of 5
700 N Haven Ave, Ontario, CA
This hotel features an outdoor pool, a 24-hour gym, and a restaurant. Traveling on business? Take advantage of the 24-hour business center and free WiFi in public ...
8.6/10 Excellent! (2,866 reviews)
"Very good"

Reviewed on Jul 16, 2025

Ontario Airport Hotel & Conference Center
La Quinta Inn & Suites by Wyndham Ontario Airport

La Quinta Inn & Suites by Wyndham Ontario Airport

3 out of 5
3555 Inland Empire Blvd, Ontario, CA
This hotel features an outdoor pool and a gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free airport ...
8.2/10 Very Good! (1,902 reviews)
"The stuff was rude"

Reviewed on Jul 15, 2025

La Quinta Inn & Suites by Wyndham Ontario Airport
Ontario Airport Inn

Ontario Airport Inn

2.5 out of 5
1801 E G St, Ontario, CA
This hotel doesn't skimp on freebies - guests receive free buffet breakfast, free self parking, and a free airport shuttle. Traveling on business? Take advantage ...
8.6/10 Excellent! (1,567 reviews)
"I had a great time at this place. It was peaceful."

Reviewed on Jul 15, 2025

Ontario Airport Inn
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.