Find Cheap Flights from Portland to Ontario (PWM - ONT)

Search hundreds of travel sites at once for deals on flights to Ontario

Wed 11/22
Wed 11/29
Any month
Compare vs. KAYAK |

Top tips for Finding a Cheap Flight

When looking for a cheap flight, consider that 25% of our users selected a flight on this route for $423 or less.

FAQs for Booking Portland to Ontario Flights

How long does a flight from Portland to Ontario take?
An average nonstop flight takes 10h 40m, covering a distance of 2594 miles.
Which airlines provide the cheapest flights from Portland to Ontario?
In the past 3 days, the cheapest round-trip tickets were found on United ($312)
Do I need a passport to fly between Portland and Ontario?
No.
What’s the cheapest day of the week to fly Portland to Ontario?
For Portland to Ontario, Tuesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Ontario back to Portland, the best deals are generally found on Tuesday, with Thursday being the most expensive.

Book cheap flights from Portland to Ontario (round-trip)

Airports
Origin
Portland
$312
only
$312
Destination
Ontario
$312
only
$312
Tue, Dec 5
PWM
ONT
12h 46m
Sat, Dec 9
ONT
PWM
11h 44m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51333 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SFO
RNO
Mediocre 3.0

Flight was on time and I received my checked baggage.

Seat was uncomfortable due to insufficient foot space. All (about 6) overhead bins in the rear of the aircraft were full because crew stored “essential equipment” in them. Crew was not professional. After takeoff they never came around to see if anyone needed anything and not even a glass of water was offered for the entire flight. They didn’t even ensure that everyone wore seatbelts on landing - woman next to me was stretched out hugging her companion while landing wilth unbuckled seatbelt. Entertainment screen did not wirk properly.

IAH
BDL
Okay 5.3

Crew friendliness

The cabin was way too cold. Audio beeps (fasten seat belts) are too loud

RDD
SFO
Excellent 10.0

The service as soon as I walked in the first airport until I walked out the last one was excellent for this trip

SFO
PSC
Excellent 10.0

The service as soon as I walked in the first airport until I walked out the last one was excellent for this trip

EWR
PHX
Excellent 8.6

Again expectation can get in the way. And of course the airline needs for flights to be as full as possible. In order to be profitable in the long run. We all want them to be able to stay in business

Same point - the point was full and I’ve already clarified that .

Sat, Jan 20
PWM
ONT
10h 40m
Sat, Jan 27
ONT
PWM
11h 31m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51333 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
BDL
Mediocre 2.0

The crew was very rude, I was told I had to store my purse, the person next to me wouldn't store the carry on baggage, I needed to take scheduled medicine in flight, I couldn't as my purse was stowed. I was delayed for over and hour and a half after arriving. I had to stop and eat in the airport. With chronic health issues addressed this way I will probably not use United again.

PSC
SFO
Okay 4.0

Crew was polite

I guess San Francisco ATC (Air Traffic Control) decided the plane couldn’t leave San Fran until way past our take off time. Then it takes two plus hours to get the plane here unload and refuel and rest. So I missed my connecting flight to Redding. Which meant I had to fly to Sacramento. Then I had a pleasant 3 hour drive on I-5 (can you sense my sarcasm?!) didn’t reach my destination until 5 in the FREAKING morning. Around 8 HOURS LATE TO MY DESTINATION

MRY
LAX
Good 6.3

Boarding was organized and prompt. Crew was fantastic.

Flight was to short.

RDD
SFO
Excellent 10.0

The service as soon as I walked in the first airport until I walked out the last one was excellent for this trip

HNL
LAX
Excellent 9.3

Fast service

Wi-Fi cost too much

Thu, Nov 30
PWM
ONT
12h 41m
Tue, Dec 12
ONT
PWM
11h 19m
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51333 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SFO
PSC
Excellent 10.0

The service as soon as I walked in the first airport until I walked out the last one was excellent for this trip

LAX
ORD
Okay 4.3

Left a little early

Smaller seats, no video or music options on a almost four hour flight. Why United why?

HNL
LAX
Excellent 9.3

Fast service

Wi-Fi cost too much

SFO
ORD
Mediocre 3.6

Flight left 6 hours late with only vague explanations. Simply, "we had to get our equipment in the right places." Attempts to standby on 3 other flights were fruitless and UA airport staff gave no direction or recommendations other than "were sorry."

IAH
BDL
Okay 5.3

Crew friendliness

The cabin was way too cold. Audio beeps (fasten seat belts) are too loud

*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.