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Portland

$49+ Cheap flights from Ontario to Portland (ONT - PDX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PDX
Dec 28 — Jan 41
Sat 12/28
Sat 1/4
1 adult, Economy
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The best prices from Ontario to Portland are usually found in April or June, booked 86 days in advance, depart on a Saturday or Tuesday and return on a Thursday

Cheap flight deals from Ontario to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 23, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$93
(Frontier)

One-way from

$49
(Cheapflightsfares)

Popular in

March

Cheapest in

April

Average price

$219
Provider with most accurate pricing for Ontario-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Portland flights.
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From Ontario to Portland
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One-way flight from Ontario to Portland
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High demand for flights, 15% potential price rise
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Best time to find cheap flights, 5% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Ontario to Portland

Cheapest flights from Ontario to Portland
Explore the most affordable flight options available from Ontario to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2024.

This FlightHub deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3012:59 amONT - PDX
1 stop14h 45mFrontier
Wed 1/17:29 pmPDX - ONT
Nonstop2h 20mFrontier
Deal found 12/23$164
This Expedia deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/298:32 pmONT - PDX
Nonstop2h 23mMultiple Airlines
Wed 1/17:29 pmPDX - ONT
Nonstop2h 20mMultiple Airlines
Deal found 12/22$258
This United deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:00 amONT - PDX
1 stop4h 21mUnited Airlines
Tue 1/71:40 pmPDX - ONT
1 stop4h 24mUnited Airlines
Deal found 12/23$276
This Alaska Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3110:40 amONT - PDX
Nonstop2h 26mAlaska Airlines
Tue 1/78:13 amPDX - ONT
Nonstop2h 21mAlaska Airlines
Deal found 12/23$277
This Delta deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/304:58 pmONT - PDX
1 stop7h 17mDelta
Wed 1/15:10 amPDX - ONT
1 stop6h 58mDelta
Deal found 12/23$327
This American Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/295:38 amONT - PDX
1 stop4h 55mAmerican Airlines
Sat 1/45:15 amPDX - ONT
1 stop6h 47mAmerican Airlines
Deal found 12/23$336
This Southwest deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/263:45 pmONT - PDX
2 stops6h 40mSouthwest
Sun 12/296:30 amPDX - ONT
1 stop6h 40mSouthwest
Deal found 12/23$501

Find flights from Ontario to Portland within your budget

Customize your flight search to find flights from Ontario to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Mon 1/6

12:00 pm-4:22 pm

1 stop4h 22m

Portland

Mon 1/6

6:59 pm-9:19 pm

Nonstop2h 20m

$93

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 1/31

8:01 am-10:27 am

Nonstop2h 26m

Portland

Sun 2/2

7:55 pm-10:13 pm

Nonstop2h 18m

$133

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 2/26

7:00 am-9:26 am

Nonstop2h 26m

Portland

Tue 3/4

2:45 pm-4:59 pm

Nonstop2h 14m

$157

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 2/15

10:05 am-4:51 pm

1 stop6h 46m

Portland

Sat 2/22

5:13 am-12:07 pm

1 stop6h 54m

$158

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 2/26

6:00 am-10:47 am

1 stop4h 47m

Portland

Fri 3/7

7:11 pm-11:51 pm

1 stop4h 40m

$186

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Tue 4/8

3:55 pm-8:09 pm

1 stop4h 14m

Portland

Wed 4/9

9:55 am-2:50 pm

1 stop4h 55m

$261

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 2/15

3:00 pm-10:10 pm

2 stops7h 10m

Portland

Sat 2/22

7:25 am-12:50 pm

1 stop5h 25m

$321

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Mon 1/6

12:00 pm-4:22 pm

1 stop4h 22m

$54

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 2/12

5:44 pm-8:10 pm

Nonstop2h 26m

$79

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 1/10

12:48 pm-8:45 pm

1 stop7h 57m

$93

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 14 results
1
2

Compare providers for flights from Ontario to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Portland in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy2 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Portland flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Portland flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario to Portland

Get recent, data-driven insights about flights from Ontario to Portland including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Ontario to Portland?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Portland. Price data was last updated on December 20, 2024.

The price you pay for your flight from Ontario to Portland may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Ontario to Portland?

Currently, November is the cheapest month in which you can book a flight from Ontario to Portland (average of $277). Flying from Ontario to Portland in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to PDX?

Find hourly flight availability from Ontario to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2024.

It’s typically best to fly out from Ontario to Portland in the afternoon. Doing so could potentially save you 46% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Ontario to Portland?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Portland. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Portland flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portland ranges from 0.7 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Portland when rainfall is around 0.7 in.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated December 23, 2024.
To help decide which airline to fly from Ontario to Portland, see what other customers have to say about Frontier, Alaska Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
4,780 reviews
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,549 reviews
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,588 reviews
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
9,020 reviews
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,780 reviews

Entertainment

7.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Ontario to Portland?

    If you wish to fly to Portland from Ontario, then you need to book flights from Ontario to Portland. There are 2 flights from Ontario (ONT) to Portland (PDX) per day to choose from. Flights to Portland from Ontario are available from 5 different airlines, which means you should have some options if you want to compare airfare deals. 2h 17m is how long a nonstop flight from Ontario to Portland typically takes.

  • How popular is this Ontario to Portland flight route?

    Flights from Ontario to Portland have been viewed 109 times in the past calendar month.

  • What are the cheapest airlines flying from Ontario to Portland round-trip?

    Cheapflights users have booked flights from Ontario to Portland round-trip from $93. Other airlines that can offer you cheap pricing are Alaska Airlines, from $157, and Delta, from $186. Users have found that Frontier is 49% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Ontario to Portland one-way?

    One-way options have recently been found by users for as low as $49 on Frontier. Other airlines that offer cheap prices include Alaska Airlines from $79 and American Airlines from $93 one-way.

  • What are the most reliable airlines from Ontario to Portland?

    Before booking your flight to Portland from Ontario, check out the most reliable airlines to get you to your destination on time: Southwest (100%), Frontier (93%), British Airways( 81%).

  • What are the cheapest flights from Ontario to Portland?

    On average you can expect to pay $372 for a flight from Ontario to Portland. The cheapest flight overall is $27 while the most popular route, (Ontario - Portland) is currently priced at $83.

  • Can I find deals for flights from Ontario to Portland that include hotel bookings?

    Yes. In addition to deals on Ontario to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Portland.

  • Can I find deals for business class flights from Ontario to Portland?

    Yes. Cheapflights offers flight deals from Ontario to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Portland?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Portland (average of $277). Flying from Ontario to Portland in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Ontario to Portland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ontario to Portland

Discover the top 5 airlines that operate flights from Ontario to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$49Average$99FlexibilityNo cancel feeOn-time65%
FrontierCheapest$55Average$121FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$148Average$271FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$177Average$364FlexibilityNo cancel feeOn-time69%
DeltaCheapest$196Average$352FlexibilityNo cancel feeOn-timeN/A
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