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

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FAQs for Booking Ontario to Portland Flights

How long does a flight from Ontario to Portland take?
An average nonstop flight takes 9h 02m, covering a distance of 2594 miles.
Which airlines provide the cheapest flights from Ontario to Portland?
In the past 3 days, the cheapest round-trip tickets were found on United ($405) and American Airlines ($580)
Do I need a passport to fly between Ontario and Portland?
No.
What’s the cheapest day of the week to fly Ontario to Portland?
For Ontario to Portland, Wednesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Portland back to Ontario, the best deals are generally found on Monday, with Wednesday being the most expensive.

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

Airports
Origin
Ontario
$405
only
$405
Destination
Portland
$405
only
$405
Wed, Mar 7
ONT
PWM
14h 43m
Wed, Mar 21
PWM
ONT
12h 31m
Trip: 14 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

DEN
PSP
Okay 4.3

Paid for Econoplus seat but was assigned a seat in the row before the emergency exit. Seat uncomfortable didn’t recline had to go through refund process

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

Tue, Jun 26
ONT
PWM
9h 02m
Tue, Jul 3
PWM
ONT
9h 49m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

DCA
CLT
Excellent 8.6

My wife is hypoglycemic and requires food. The flight was so early that none of the terminal restaraunts were open, nor did the plain have food for any passengers accept first class. I've purchased a box on other flights, but this one did not provide an option for a box lunch or breakfast.

SAT
PHL
Excellent 8.0

I took American's first direct flight between Philadelphia and San Antonio. It was a nice plane, good service, and amenities for a cost. Love that the plane had plugs!

ORD
CLT
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

Wed, Mar 7
ONT
PWM
14h 43m
Mon, Mar 19
PWM
ONT
12h 16m
Trip: 12 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
PSP
Okay 4.3

Paid for Econoplus seat but was assigned a seat in the row before the emergency exit. Seat uncomfortable didn’t recline had to go through refund process

DFW
ORD
Excellent 10.0

I LIKE THE SERVICE ON BORD OF THE PLANE

NOTHING

GRR
IAH
Good 6.0

Pay for food, cold on plane entire time, everyone bundled up in blankets, jackets but staff friendly

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

Fri, Mar 9
ONT
PWM
12h 58m
Tue, Mar 20
PWM
ONT
15h 07m
Trip: 11 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
SAN
Mediocre 2.6

The staff were fine, nothing really great, but nothing bad either.

So, we'll start with boarding. Why airlines can't figure out to board the plane from back to front is beyond me. No, let's load front to back so everyone has to uncomfortably shove past the people who have already taken their seats at the front of the plane. Then you get back there and all the overhead bins are full because everyone takes as many bags as possible onto the plane. Then you have to sacrifice the already tiny amount of foot room, "to put the bag fully underneath the seat in front of you." At this point you should be fine, except if you're over five and a half feet tall (I don't know if that's true I'm 6'2" and 275 lbs,) because then your knees are going to be buried so deep in the chair in front of you that the person up there doesn't even need a seat they can just sit on your knees. Luckily for you tall people, they put a nice metal rod just about knee level to really dig in and cause pain . . . Yay! Being a big guy, you try to be considerate and fold your arms in to give the person next to you as much space as possible, but don't expect that back as they'll spread out and become as wide as possible. Then to distract yourself from the discomfort, you try to use the free in flight entertainment via the United app, but "it's not available right now." In summation either be short and small or be rich and buy the seats with extra legroom when you fly United.

SJO
IAH
Mediocre 3.3

The check-in staff were very friendly and helpful.

I already knew I was going to pay $200 to ship my boards back home (I wonder if golf clubs which are roughly the same size cost as much,) but when pre-purchasing through the app for an "oversized" bag you have to put a "one" in the checked bag and a "one" in the oversized bag even though they're the same bag, but then they charge you for two, and when you tell the check-in person that you only have one bag of course they can't issue a refund. No, they tell you that you get to call customer service when you return home.

DFW
ORD
Excellent 10.0

I LIKE THE SERVICE ON BORD OF THE PLANE

NOTHING

DEN
PSP
Okay 4.3

Paid for Econoplus seat but was assigned a seat in the row before the emergency exit. Seat uncomfortable didn’t recline had to go through refund process

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

Sat, Mar 10
ONT
PWM
13h 24m
Wed, Mar 21
PWM
ONT
13h 00m
Trip: 11 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

GRR
IAH
Good 6.0

Pay for food, cold on plane entire time, everyone bundled up in blankets, jackets but staff friendly

LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

SJO
IAH
Mediocre 3.3

The check-in staff were very friendly and helpful.

I already knew I was going to pay $200 to ship my boards back home (I wonder if golf clubs which are roughly the same size cost as much,) but when pre-purchasing through the app for an "oversized" bag you have to put a "one" in the checked bag and a "one" in the oversized bag even though they're the same bag, but then they charge you for two, and when you tell the check-in person that you only have one bag of course they can't issue a refund. No, they tell you that you get to call customer service when you return home.

Mon, Mar 12
ONT
PWM
14h 43m
Tue, Mar 20
PWM
ONT
12h 21m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

DEN
PSP
Okay 4.3

Paid for Econoplus seat but was assigned a seat in the row before the emergency exit. Seat uncomfortable didn’t recline had to go through refund process

Sat, May 12
ONT
PWM
10h 21m
Fri, May 18
PWM
ONT
12h 02m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

SJO
IAH
Mediocre 3.3

The check-in staff were very friendly and helpful.

I already knew I was going to pay $200 to ship my boards back home (I wonder if golf clubs which are roughly the same size cost as much,) but when pre-purchasing through the app for an "oversized" bag you have to put a "one" in the checked bag and a "one" in the oversized bag even though they're the same bag, but then they charge you for two, and when you tell the check-in person that you only have one bag of course they can't issue a refund. No, they tell you that you get to call customer service when you return home.

GRR
IAH
Good 6.0

Pay for food, cold on plane entire time, everyone bundled up in blankets, jackets but staff friendly

IAH
SAN
Mediocre 2.6

The staff were fine, nothing really great, but nothing bad either.

So, we'll start with boarding. Why airlines can't figure out to board the plane from back to front is beyond me. No, let's load front to back so everyone has to uncomfortably shove past the people who have already taken their seats at the front of the plane. Then you get back there and all the overhead bins are full because everyone takes as many bags as possible onto the plane. Then you have to sacrifice the already tiny amount of foot room, "to put the bag fully underneath the seat in front of you." At this point you should be fine, except if you're over five and a half feet tall (I don't know if that's true I'm 6'2" and 275 lbs,) because then your knees are going to be buried so deep in the chair in front of you that the person up there doesn't even need a seat they can just sit on your knees. Luckily for you tall people, they put a nice metal rod just about knee level to really dig in and cause pain . . . Yay! Being a big guy, you try to be considerate and fold your arms in to give the person next to you as much space as possible, but don't expect that back as they'll spread out and become as wide as possible. Then to distract yourself from the discomfort, you try to use the free in flight entertainment via the United app, but "it's not available right now." In summation either be short and small or be rich and buy the seats with extra legroom when you fly United.

Fri, Mar 30
ONT
PWM
13h 09m
Sat, Apr 7
PWM
ONT
10h 10m
Trip: 9 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
DCA
CLT
Excellent 8.6

My wife is hypoglycemic and requires food. The flight was so early that none of the terminal restaraunts were open, nor did the plain have food for any passengers accept first class. I've purchased a box on other flights, but this one did not provide an option for a box lunch or breakfast.

JFK
EZE
Excellent 9.0

Beautiful design n great storage

Hard to get out of seat unless in fully upright biz class position

PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

JAX
DFW
Excellent 8.6

Polite. Clean. Nice business class.

Would like more Western food.

Tue, May 15
ONT
PWM
10h 21m
Sat, May 19
PWM
ONT
12h 35m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

GRR
IAH
Good 6.0

Pay for food, cold on plane entire time, everyone bundled up in blankets, jackets but staff friendly

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

Fri, Mar 9
ONT
PWM
12h 58m
Mon, Mar 19
PWM
ONT
12h 31m
Trip: 10 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

IAH
SAN
Mediocre 2.6

The staff were fine, nothing really great, but nothing bad either.

So, we'll start with boarding. Why airlines can't figure out to board the plane from back to front is beyond me. No, let's load front to back so everyone has to uncomfortably shove past the people who have already taken their seats at the front of the plane. Then you get back there and all the overhead bins are full because everyone takes as many bags as possible onto the plane. Then you have to sacrifice the already tiny amount of foot room, "to put the bag fully underneath the seat in front of you." At this point you should be fine, except if you're over five and a half feet tall (I don't know if that's true I'm 6'2" and 275 lbs,) because then your knees are going to be buried so deep in the chair in front of you that the person up there doesn't even need a seat they can just sit on your knees. Luckily for you tall people, they put a nice metal rod just about knee level to really dig in and cause pain . . . Yay! Being a big guy, you try to be considerate and fold your arms in to give the person next to you as much space as possible, but don't expect that back as they'll spread out and become as wide as possible. Then to distract yourself from the discomfort, you try to use the free in flight entertainment via the United app, but "it's not available right now." In summation either be short and small or be rich and buy the seats with extra legroom when you fly United.

Wed, Feb 21
ONT
PWM
9h 22m
Sun, Feb 25
PWM
ONT
11h 04m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

DFW
FLL
Excellent 8.0

No issues at all

N/A

LAS
DFW
Excellent 8.0

Flight was punctual and service was good.

Gate change

PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

SAT
PHL
Excellent 8.0

I took American's first direct flight between Philadelphia and San Antonio. It was a nice plane, good service, and amenities for a cost. Love that the plane had plugs!

Mon, Mar 12
ONT
PWM
14h 43m
Mon, Mar 19
PWM
ONT
12h 16m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
DFW
ORD
Excellent 10.0

I LIKE THE SERVICE ON BORD OF THE PLANE

NOTHING

DEN
PSP
Okay 4.3

Paid for Econoplus seat but was assigned a seat in the row before the emergency exit. Seat uncomfortable didn’t recline had to go through refund process

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

IAH
HNL
Excellent 9.3

The flight crew was very welcoming and positive. They were attentive and ensures that every one had headsets, blanckets etc for the 8.5 hour flight.

Lacking food healthy food options. No salads or light bites available. The warm food that they did have was terrible and very salty. I wish their in-flight entertainment was not on our own devices because updates to the app are required which you wouldnt know unless you were on the plane and connected to their wifi.

Mon, May 14
ONT
PWM
13h 56m
Sat, May 19
PWM
ONT
12h 35m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

DFW
ORD
Excellent 10.0

I LIKE THE SERVICE ON BORD OF THE PLANE

NOTHING

GRR
IAH
Good 6.0

Pay for food, cold on plane entire time, everyone bundled up in blankets, jackets but staff friendly

Thu, Feb 22
ONT
PWM
9h 22m
Sun, Feb 25
PWM
ONT
11h 04m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
SAT
PHL
Excellent 8.0

I took American's first direct flight between Philadelphia and San Antonio. It was a nice plane, good service, and amenities for a cost. Love that the plane had plugs!

CLT
LGA
Excellent 10.0

Ability to upgrade to first class

Security taking forever

DCA
CLT
Excellent 8.6

My wife is hypoglycemic and requires food. The flight was so early that none of the terminal restaraunts were open, nor did the plain have food for any passengers accept first class. I've purchased a box on other flights, but this one did not provide an option for a box lunch or breakfast.

SJU
MIA
Excellent 9.3

New onboard entertainment

DFW
FLL
Excellent 8.0

No issues at all

N/A

Sat, Mar 10
ONT
PWM
13h 24m
Sun, Mar 18
PWM
ONT
15h 07m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

DFW
ORD
Excellent 10.0

I LIKE THE SERVICE ON BORD OF THE PLANE

NOTHING

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

GRR
IAH
Good 6.0

Pay for food, cold on plane entire time, everyone bundled up in blankets, jackets but staff friendly

Ontario to Portland Flight Information

Flights Arrive in Portland
Flights Depart from Ontario
Flight Price $405
Distance 2594 miles
Airlines United, American Airlines
*
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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.