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$39+ Cheap flights from Ontario (ONT) to Oregon

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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PDX
Jan 22 — Jan 291
Wed 1/22
Wed 1/29
1 adult, Economy
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Cheap flight deals from Ontario to Oregon

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Oregon (USOR). 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 January 17, 2025.

Round-trip from

$97
(Mytrip)

One-way from

$41
(Trip.com)
From Ontario to Oregon
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One-way flight from Ontario to Oregon
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Find flight deals from Ontario to Oregon

Cheapest flights from Ontario to Oregon
Explore the most affordable flight options available from Ontario to Oregon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 1/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/248:01 amONT - PDX
Nonstop2h 26mFrontier
Mon 1/2710:35 amPDX - ONT
Nonstop2h 21mFrontier
Deal found 1/14$96
This Expedia deal was found by Cheapflights users on 1/15. 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.
Fri 2/78:01 amONT - PDX
Nonstop2h 26mMultiple Airlines
Wed 2/129:44 pmPDX - ONT
Nonstop2h 14mMultiple Airlines
Deal found 1/15$123
This Alaska Airlines deal was found by Cheapflights users on 1/15. 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.
Wed 2/197:00 amONT - PDX
Nonstop2h 26mAlaska Airlines
Tue 2/258:42 amPDX - ONT
Nonstop2h 23mAlaska Airlines
Deal found 1/15$157
This American Airlines deal was found by Cheapflights users on 1/15. 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.
Sat 2/812:48 pmONT - PDX
1 stop7h 57mAmerican Airlines
Sun 2/911:36 amPDX - ONT
1 stop6h 48mAmerican Airlines
Deal found 1/15$190
This Delta deal was found by Cheapflights users on 1/15. 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.
Wed 4/165:15 pmONT - PDX
1 stop6h 37mDelta
Mon 4/215:09 pmPDX - ONT
1 stop5h 31mDelta
Deal found 1/15$207
This American Airlines deal was found by Cheapflights users on 1/14. 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.
Wed 2/512:48 pmONT - EUG
1 stop6h 51mAmerican Airlines
Sat 2/83:00 pmEUG - ONT
1 stop4h 31mAmerican Airlines
Deal found 1/14$219
This Delta deal was found by Cheapflights users on 1/14. 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.
Wed 2/51:21 pmONT - EUG
2 stops9h 31mDelta
Sat 2/85:50 amEUG - ONT
1 stop6h 34mDelta
Deal found 1/14$224
This United Airlines deal was found by Cheapflights users on 1/15. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:00 amONT - PDX
1 stop6h 27mUnited Airlines
Tue 9/25:45 amPDX - ONT
1 stop4h 14mUnited Airlines
Deal found 1/15$232
This Alaska Airlines deal was found by Cheapflights users on 1/15. 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 2/256:00 amONT - BOI
1 stop6h 51mAlaska Airlines
Wed 2/262:46 pmBOI - ONT
1 stop7h 41mAlaska Airlines
Deal found 1/15$232
This Delta deal was found by Cheapflights users on 1/15. 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.
Wed 2/124:05 pmONT - BOI
1 stop6h 41mDelta
Tue 2/181:20 pmBOI - ONT
1 stop4h 08mDelta
Deal found 1/15$233
This Delta deal was found by Cheapflights users on 1/16. 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.
Sat 2/156:00 amONT - MFR
1 stop6h 10mDelta
Wed 2/195:00 amMFR - ONT
1 stop7h 24mDelta
Deal found 1/16$239
This Alaska Airlines deal was found by Cheapflights users on 1/15. 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.
Wed 2/55:44 pmONT - RDM
1 stop4h 55mAlaska Airlines
Sat 2/81:38 pmRDM - ONT
1 stop4h 35mAlaska Airlines
Deal found 1/15$240

Find flights from Ontario to Oregon within your budget

Customize your flight search to find flights from Ontario to Oregon 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 January 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 1/31

8:01 am-10:27 am

Nonstop2h 26m

Portland

Wed 2/5

7:35 am-11:47 pm

1 stop16h 12m

$97

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 4/2

9:09 pm-8:47 am

1 stop11h 38m

Portland

Sat 4/5

9:41 pm-11:59 pm

Nonstop2h 18m

$144

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 2/8

5:44 pm-8:10 pm

Nonstop2h 26m

Portland

Wed 2/12

9:44 pm-11:58 pm

Nonstop2h 14m

$157

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 2/8

6:00 am-12:28 pm

1 stop6h 28m

Portland

Mon 2/10

7:11 pm-11:51 pm

1 stop4h 40m

$188

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 2/8

12:48 pm-8:45 pm

1 stop7h 57m

Portland

Sun 2/9

11:36 am-6:24 pm

1 stop6h 48m

$190

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 2/5

12:48 pm-7:39 pm

1 stop6h 51m

Eugene

Sat 2/8

3:00 pm-7:31 pm

1 stop4h 31m

$219

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 2/5

1:21 pm-10:52 pm

2 stops9h 31m

Eugene

Sat 2/8

5:50 am-12:24 pm

1 stop6h 34m

$224

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Thu 5/29

6:00 am-12:27 pm

1 stop6h 27m

Portland

Sun 6/1

7:40 am-12:34 pm

1 stop4h 54m

$232

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Tue 2/25

6:00 am-1:51 pm

1 stop6h 51m

Boise Air Term. Gowen Fld

Wed 2/26

2:46 pm-9:27 pm

1 stop7h 41m

$232

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Wed 2/12

4:05 pm-11:46 pm

1 stop6h 41m

Boise Air Term. Gowen Fld

Tue 2/18

1:20 pm-4:28 pm

1 stop4h 08m

$233

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 48 results
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Best time to book a flight from Ontario to Oregon

Have a flexible travel schedule? Discover the best time to fly to Oregon 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 Oregon

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

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

Currently, November is the cheapest month in which you can book a flight from Ontario to Oregon (average of $277). Flying from Ontario to Oregon 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 OR?

Find hourly flight availability from Ontario to Oregon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Oregon as you normally would.

Weekly flight availability from Ontario to Oregon

Explore weekly flight availability from Ontario to Oregon. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 17, 2025.

The most flights from ONT to USOR are scheduled on a Thursday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Oregon by month

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

In terms of precipitation, rainfall in Oregon 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 Oregon when rainfall is around 0.7 in.

Temperature in Oregon by month

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

If weather is an important factor for your trip to Oregon, 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 Oregon

Get insights into the airlines that provide service to Oregon. 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 Oregon. Reviews last updated January 17, 2025.
Peruse reviews from past customers who have flown with Frontier, American Airlines and Alaska Airlines from Ontario to Oregon to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

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
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

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
9,681 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

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
8,511 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

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
8,965 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

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
4,659 reviews

Comfort

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Overall

8.1

Entertainment

7.7

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 Oregon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Oregon?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Oregon.

  • How popular is this Ontario to Oregon flight route?

    The Ontario to Oregon flight path was viewed by 126 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    $41 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and Delta, with prices starting from $79 and $99, respectively.

  • What are the most popular routes from Ontario to Oregon?

    Most travelers choose Ontario - Portland, Ontario - Boise Air Term. Gowen Fld or Ontario - Eugene when deciding on the best route from Ontario to Oregon.

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

    Consider Frontier (86%), Southwest (80%) or British Airways (79%) when booking your flight. These represent the most reliable airlines when flying from Ontario to Oregon.

  • What are the cheapest flights from Ontario to Oregon?

    On average you can expect to pay $687 for a flight from Ontario to Oregon. The cheapest flight overall is $29 while the most popular route, (Ontario - Portland) is currently priced at $96.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Oregon 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 Oregon?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Oregon (average of $277). Flying from Ontario to Oregon 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 Oregon

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Ontario to Oregon

Discover the top 8 airlines that operate flights from Ontario to Oregon. 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 January 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$48Average$96FlexibilityNo cancel feeOn-time65%
FrontierCheapest$55Average$121FlexibilityNo cancel feeOn-time62%
Avelo AirlinesCheapest$142Average$187FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$151Average$345FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$158Average$418FlexibilityNo cancel feeOn-time63%
DeltaCheapest$173Average$333FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$177Average$437FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$221Average$297FlexibilityNo cancel feeOn-time71%
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