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

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Sat 11/18
Sat 11/25
Any month
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Good to Know

Low Season:
January
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
18%
expected price increase
Average Price:
$265
(avg. price over the last 2 weeks)
Good Deal:
$192
or less (round trip)

When to Book Flights from Ontario to Portland

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

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 $192 or less.
The cheapest flight from Ontario to Portland was found 76 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is January.
Morning departure is around 1% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Ontario to Portland Flights

How long does a flight from Ontario to Portland take?
An average nonstop flight takes 2h 20m, covering a distance of 839 miles.
How many flights are there between Ontario and Portland?
There are 30 (nonstop) flights between Ontario and Portland per week, averaging 4 per day.
Which airlines provide the cheapest flights from Ontario to Portland?
In the past 3 days, the cheapest round-trip tickets were found on Alaska Airlines ($117), Multiple Airlines ($135) and United ($144).
Do I need a passport to fly between Ontario and Portland?
No.
Which airlines fly most frequently between Ontario and Portland?
Alaska Airlines (2 times daily), Southwest (2 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Ontario to Portland?
For Ontario to Portland, Saturday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Portland back to Ontario, the best deals are generally found on Saturday, with Friday being the most expensive.

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

Airports
Origin
Ontario
$117
only
$117
Destination
Portland
$117
only
$117
Sat, Dec 2
ONT
PDX
2h 31m
Tue, Dec 5
PDX
ONT
2h 20m
Trip: 4 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
SJC
SEA
Good 6.0

Airplane was dirty upon boarding - food and miscellaneous remnants on the seats and floor, used trash bag in the seat back in front of me

SEA
LAX
Good 6.0

737 900

Delay at gate....computer issues????

MSY
SEA
Excellent 8.0

No crying babies and outlets at all seats.

I wish the seats reclined more or had more padding.

PDX
PHX
Excellent 8.0

I think better than other airlines. Provided a snack, beverages and wine for purchase. Very friendly team. I had no problems. I really appreciate the late flight from PDX to PHX on weekdays. It is very convenient for work related travel. I don't think any other airline flight back to PHX that late. I also appreciate that they offer power, free limited WIFI (to text/send messages).

I did not really dislike anything. I think it was a good experience overall. However, there is room for improvement for all airlines. It would be nice to see more comfortable seats, additional amenities and lower prices. I bought the last minute ticket one war PDX to PHX for $500. I think that was a little expensive, even for last minute traveling.

SEA
SFO
Mediocre 3.3

Flight said canceled but they rerouted it to Oakland but no where on any monitors does it say this. The screen for boarding said Cancun even while boarding to Oakland. No one helping people when they got off the plane to transport them to SFO. Standing in the rain waiting for shuttle.Poor experience

Thu, Nov 30
ONT
PDX
4h 05m
Sat, Dec 2
PDX
ONT
2h 18m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Dec 3
ONT
PDX
6h 01m
Tue, Dec 5
PDX
ONT
4h 01m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
RSW
Excellent 9.0

The temperature on the plane was close to that of a freezer. Very cold for some unusual reason. Otherwise a great flight -- on time departure and arrival -

DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

DCA
IAH
Good 7.3

Crew was great and helpful!

Not enough options for people with celiac.

IAH
LAS
Good 7.3

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

EWR
NRT
Mediocre 3.6

There was a flight attendant who was a little rude.

Tue, May 8
ONT
PDX
10h 24m
Sun, Jun 10
PDX
ONT
22h 31m
Trip: 34 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32923 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SLC
Okay 5.6

Food, entertainment NA, didn’t use. Rest of flight uneventful, happy to say. Because this was so late due to previous leg of journey delayed, our planned transportation to hotel wa not available.

MIA
CVG
Good 6.0

More snack/food options

MIA
ISP
Excellent 8.5

The terminal was empty. Plenty of seats. Boarding doesn't take long. Arrival at ISP is nice because it is small and empty.

MIA
PHL
Okay 5.6

Flight was on time. The flight was fast and the crew was helpful and courteous

It was cramped. Couldn't recline back. Was only offered water

LGA
MIA
Mediocre 3.6

Flight Very late , when departure already at night Uncomfortable seats $45 for a bag and I have drop it off myself after pay

Sat, Jan 6
ONT
PDX
2h 30m
Tue, Jan 9
PDX
ONT
2h 25m
Trip: 4 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
BOS
SAN
Okay 4.6

On time flight

Poor service for food and beverage

ONT
PDX
Mediocre 2.0

Nothing

Delayed for more then 2 hrs because they had plane issue. THEY ALWAYS HAVE PLANE ISSUE!!!

ORD
PDX
Excellent 8.6

Good customer service and comfortable plane

Sat for an hour before take off.

MEX
SFO
Excellent 8.0

Flight attendants very attentive and helpful as well as a smooth fligh.

Departed late was the only thing, otherwise very good.

PHX
SEA
Excellent 10.0

Excellent Crew - I flew standby, so have great gate agents and flight attendants makes all the difference when you’re hoping for a seat. In flight they are professional and personable and keep you up to date on what you need to know! Plus, I’m always happy when my flights have USB ports so I’m fully charged when I deplane.

I always want more leg room or a little more room under the seat in front of me. But I didn’t upgrade for a roomier seat and there was more than enough overhead space, so truly can’t complain about it!

Thu, Feb 1
ONT
PDX
2h 30m
Tue, Feb 6
PDX
ONT
2h 25m
Trip: 6 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
BOS
SAN
Okay 4.6

On time flight

Poor service for food and beverage

MEX
SFO
Excellent 8.0

Flight attendants very attentive and helpful as well as a smooth fligh.

Departed late was the only thing, otherwise very good.

SJC
SEA
Good 6.0

Airplane was dirty upon boarding - food and miscellaneous remnants on the seats and floor, used trash bag in the seat back in front of me

MSY
SEA
Excellent 8.0

No crying babies and outlets at all seats.

I wish the seats reclined more or had more padding.

SEA
LAX
Good 6.0

737 900

Delay at gate....computer issues????

Thu, Feb 8
ONT
PDX
2h 30m
Sat, Feb 10
PDX
ONT
2h 25m
Trip: 3 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
SEA
ANC
Excellent 10.0

Excellent Crew - I flew standby, so have great gate agents and flight attendants makes all the difference when you’re hoping for a seat. In flight they are professional and personable and keep you up to date on what you need to know! Plus, I’m always happy when my flights have USB ports so I’m fully charged when I deplane.

I always want more leg room or a little more room under the seat in front of me. But I didn’t upgrade for a roomier seat and there was more than enough overhead space, so truly can’t complain about it!

MSY
SEA
Excellent 8.0

No crying babies and outlets at all seats.

I wish the seats reclined more or had more padding.

PDX
PHX
Excellent 8.0

I think better than other airlines. Provided a snack, beverages and wine for purchase. Very friendly team. I had no problems. I really appreciate the late flight from PDX to PHX on weekdays. It is very convenient for work related travel. I don't think any other airline flight back to PHX that late. I also appreciate that they offer power, free limited WIFI (to text/send messages).

I did not really dislike anything. I think it was a good experience overall. However, there is room for improvement for all airlines. It would be nice to see more comfortable seats, additional amenities and lower prices. I bought the last minute ticket one war PDX to PHX for $500. I think that was a little expensive, even for last minute traveling.

ONT
PDX
Mediocre 2.0

Nothing

Delayed for more then 2 hrs because they had plane issue. THEY ALWAYS HAVE PLANE ISSUE!!!

SJC
SEA
Good 6.0

Airplane was dirty upon boarding - food and miscellaneous remnants on the seats and floor, used trash bag in the seat back in front of me

Thu, Mar 1
ONT
PDX
2h 27m
Mon, Mar 5
PDX
ONT
2h 22m
Trip: 5 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
BOS
SAN
Okay 4.6

On time flight

Poor service for food and beverage

SJC
SEA
Good 6.0

Airplane was dirty upon boarding - food and miscellaneous remnants on the seats and floor, used trash bag in the seat back in front of me

SEA
SFO
Mediocre 3.3

Flight said canceled but they rerouted it to Oakland but no where on any monitors does it say this. The screen for boarding said Cancun even while boarding to Oakland. No one helping people when they got off the plane to transport them to SFO. Standing in the rain waiting for shuttle.Poor experience

PDX
PHX
Excellent 8.0

I think better than other airlines. Provided a snack, beverages and wine for purchase. Very friendly team. I had no problems. I really appreciate the late flight from PDX to PHX on weekdays. It is very convenient for work related travel. I don't think any other airline flight back to PHX that late. I also appreciate that they offer power, free limited WIFI (to text/send messages).

I did not really dislike anything. I think it was a good experience overall. However, there is room for improvement for all airlines. It would be nice to see more comfortable seats, additional amenities and lower prices. I bought the last minute ticket one war PDX to PHX for $500. I think that was a little expensive, even for last minute traveling.

SEA
LAX
Excellent 10.0

Great service for an affordable price!

Thu, May 10
ONT
PDX
6h 27m
Tue, May 15
PDX
ONT
6h 38m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

EWR
NRT
Mediocre 3.6

There was a flight attendant who was a little rude.

IAH
LAS
Good 7.3

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

NRT
LAX
Excellent 10.0

Service and food were great. Flight was smooth and a lot of leg room. Will definitely fly again.

IAD
LAX
Okay 4.0

Had xtra legroom and Wi-Fi

I paid the xtra $99 for the economy plus but my headphone jack didn’t work so I couldn’t watch a movie and my tray table was broken so I had to hold my drink and fumble with my food. The flight attendant tried to fix it but couldn’t. Made my 6 hour flight feel like 12 hours.

Wed, Apr 4
ONT
PDX
2h 20m
Sat, Apr 7
PDX
ONT
2h 20m
Trip: 4 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
ORD
PDX
Excellent 8.6

Good customer service and comfortable plane

Sat for an hour before take off.

MSY
SEA
Excellent 8.0

No crying babies and outlets at all seats.

I wish the seats reclined more or had more padding.

SJC
SEA
Good 6.0

Airplane was dirty upon boarding - food and miscellaneous remnants on the seats and floor, used trash bag in the seat back in front of me

SEA
SFO
Mediocre 3.3

Flight said canceled but they rerouted it to Oakland but no where on any monitors does it say this. The screen for boarding said Cancun even while boarding to Oakland. No one helping people when they got off the plane to transport them to SFO. Standing in the rain waiting for shuttle.Poor experience

BOS
SAN
Okay 4.6

On time flight

Poor service for food and beverage

Sat, Dec 16
ONT
PDX
6h 44m
Wed, Dec 20
PDX
ONT
4h 12m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
LGA
Excellent 8.3

The crew did a good job with the sick woman.

IAH
LAS
Good 7.3

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

EWR
RSW
Excellent 9.0

The temperature on the plane was close to that of a freezer. Very cold for some unusual reason. Otherwise a great flight -- on time departure and arrival -

JAX
IAH
Good 7.6

N/A

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

IAD
LAX
Okay 4.0

Had xtra legroom and Wi-Fi

I paid the xtra $99 for the economy plus but my headphone jack didn’t work so I couldn’t watch a movie and my tray table was broken so I had to hold my drink and fumble with my food. The flight attendant tried to fix it but couldn’t. Made my 6 hour flight feel like 12 hours.

Fri, Jan 5
ONT
PDX
2h 30m
Wed, Jan 10
PDX
ONT
2h 25m
Trip: 6 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
MEX
SFO
Excellent 8.0

Flight attendants very attentive and helpful as well as a smooth fligh.

Departed late was the only thing, otherwise very good.

SEA
LAX
Good 6.0

737 900

Delay at gate....computer issues????

SEA
LAX
Excellent 10.0

Great service for an affordable price!

SEA
SFO
Mediocre 3.3

Flight said canceled but they rerouted it to Oakland but no where on any monitors does it say this. The screen for boarding said Cancun even while boarding to Oakland. No one helping people when they got off the plane to transport them to SFO. Standing in the rain waiting for shuttle.Poor experience

PHX
SEA
Excellent 10.0

Excellent Crew - I flew standby, so have great gate agents and flight attendants makes all the difference when you’re hoping for a seat. In flight they are professional and personable and keep you up to date on what you need to know! Plus, I’m always happy when my flights have USB ports so I’m fully charged when I deplane.

I always want more leg room or a little more room under the seat in front of me. But I didn’t upgrade for a roomier seat and there was more than enough overhead space, so truly can’t complain about it!

Thu, Dec 21
ONT
PDX
5h 28m
Sun, Dec 24
PDX
ONT
5h 41m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
JAX
IAH
Good 7.6

N/A

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

EWR
RSW
Excellent 9.0

The temperature on the plane was close to that of a freezer. Very cold for some unusual reason. Otherwise a great flight -- on time departure and arrival -

IAD
LAX
Okay 4.0

Had xtra legroom and Wi-Fi

I paid the xtra $99 for the economy plus but my headphone jack didn’t work so I couldn’t watch a movie and my tray table was broken so I had to hold my drink and fumble with my food. The flight attendant tried to fix it but couldn’t. Made my 6 hour flight feel like 12 hours.

IAH
LAS
Good 7.3

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

DSM
IAH
Excellent 10.0

Boarding seemed smother than usual. I had an issue with a large back pack that wouldn't fit in the overhead due to a smaller plane travelling to Houston from Des Moines, Flight attendant was extremely helpful as it was expensive camera equipment and was able to stow it so that i didn't have to check it at the door. Most appreciated their sensitivity.

Thu, Mar 22
ONT
PDX
2h 20m
Mon, Mar 26
PDX
ONT
4h 59m
Trip: 5 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
MEX
SFO
Excellent 8.0

Flight attendants very attentive and helpful as well as a smooth fligh.

Departed late was the only thing, otherwise very good.

SEA
LAX
Excellent 10.0

Great service for an affordable price!

MSY
SEA
Excellent 8.0

No crying babies and outlets at all seats.

I wish the seats reclined more or had more padding.

SEA
LAX
Good 6.0

737 900

Delay at gate....computer issues????

SJC
SEA
Good 6.0

Airplane was dirty upon boarding - food and miscellaneous remnants on the seats and floor, used trash bag in the seat back in front of me

Thu, Nov 23
ONT
PDX
2h 31m
Wed, Nov 29
PDX
ONT
2h 18m
Trip: 7 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
MSY
SEA
Excellent 8.0

No crying babies and outlets at all seats.

I wish the seats reclined more or had more padding.

SJC
SEA
Good 6.0

Airplane was dirty upon boarding - food and miscellaneous remnants on the seats and floor, used trash bag in the seat back in front of me

SEA
ANC
Excellent 10.0

Excellent Crew - I flew standby, so have great gate agents and flight attendants makes all the difference when you’re hoping for a seat. In flight they are professional and personable and keep you up to date on what you need to know! Plus, I’m always happy when my flights have USB ports so I’m fully charged when I deplane.

I always want more leg room or a little more room under the seat in front of me. But I didn’t upgrade for a roomier seat and there was more than enough overhead space, so truly can’t complain about it!

ORD
PDX
Excellent 8.6

Good customer service and comfortable plane

Sat for an hour before take off.

PHX
SEA
Excellent 10.0

Excellent Crew - I flew standby, so have great gate agents and flight attendants makes all the difference when you’re hoping for a seat. In flight they are professional and personable and keep you up to date on what you need to know! Plus, I’m always happy when my flights have USB ports so I’m fully charged when I deplane.

I always want more leg room or a little more room under the seat in front of me. But I didn’t upgrade for a roomier seat and there was more than enough overhead space, so truly can’t complain about it!

Thu, Nov 23
ONT
PDX
2h 31m
Wed, Nov 29
PDX
ONT
2h 18m
Trip: 7 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
PHX
SEA
Excellent 10.0

Excellent Crew - I flew standby, so have great gate agents and flight attendants makes all the difference when you’re hoping for a seat. In flight they are professional and personable and keep you up to date on what you need to know! Plus, I’m always happy when my flights have USB ports so I’m fully charged when I deplane.

I always want more leg room or a little more room under the seat in front of me. But I didn’t upgrade for a roomier seat and there was more than enough overhead space, so truly can’t complain about it!

SEA
ANC
Excellent 10.0

Excellent Crew - I flew standby, so have great gate agents and flight attendants makes all the difference when you’re hoping for a seat. In flight they are professional and personable and keep you up to date on what you need to know! Plus, I’m always happy when my flights have USB ports so I’m fully charged when I deplane.

I always want more leg room or a little more room under the seat in front of me. But I didn’t upgrade for a roomier seat and there was more than enough overhead space, so truly can’t complain about it!

ONT
PDX
Mediocre 2.0

Nothing

Delayed for more then 2 hrs because they had plane issue. THEY ALWAYS HAVE PLANE ISSUE!!!

ORD
PDX
Excellent 8.6

Good customer service and comfortable plane

Sat for an hour before take off.

SEA
SFO
Mediocre 3.3

Flight said canceled but they rerouted it to Oakland but no where on any monitors does it say this. The screen for boarding said Cancun even while boarding to Oakland. No one helping people when they got off the plane to transport them to SFO. Standing in the rain waiting for shuttle.Poor experience

Wed, Nov 22
ONT
PDX
2h 31m
Fri, Nov 24
PDX
ONT
2h 18m
Trip: 3 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
SEA
LAX
Excellent 10.0

Great service for an affordable price!

MSY
SEA
Excellent 8.0

No crying babies and outlets at all seats.

I wish the seats reclined more or had more padding.

MEX
SFO
Excellent 8.0

Flight attendants very attentive and helpful as well as a smooth fligh.

Departed late was the only thing, otherwise very good.

SJC
SEA
Good 6.0

Airplane was dirty upon boarding - food and miscellaneous remnants on the seats and floor, used trash bag in the seat back in front of me

BOS
SAN
Okay 4.6

On time flight

Poor service for food and beverage

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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.