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$44+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PDX
févr. 25 — mars 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Ontario to Oregon

Keep the following information in mind while searching for Ontario to Oregon flight deals. Data was last updated février 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$157
(Hawaiian Airlines)

One-way from

$44
(Cheapflightsfares)

Popular in

November

Cheapest in

January

Average price

$167

Good round-trip deal

$197 or less

Good one-way deal

$88 or less
Provider with most accurate pricing for Los Angeles-Portland flight deals.
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From Ontario to Oregon
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One-way flight from Ontario to Oregon
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Highest demand for flights based on searches. 2% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Ontario to Oregon.
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Price to beat on a 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 février 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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.
jeu. 5/2911:28 amONT - PDX
Nonstop2h 26mFrontier
dim. 6/12:54 pmPDX - ONT
Nonstop2h 21mFrontier
Deal found 2/20$124
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/257:00 amONT - PDX
Nonstop2h 24mHawaiian Airlines
mar. 4/17:05 amPDX - ONT
Nonstop2h 23mHawaiian Airlines
Deal found 2/20$157
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
jeu. 4/310:18 amONT - PDX
Nonstop2h 27mAlaska Airlines
mar. 4/89:41 pmPDX - ONT
Nonstop2h 18mAlaska Airlines
Deal found 2/19$167
This Southwest deal was found by Cheapflights users on 2/20. 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.
jeu. 4/34:30 pmONT - PDX
1 stop5h 50mSouthwest
mar. 4/86:45 amPDX - ONT
1 stop3h 25mSouthwest
Deal found 2/20$182
This Delta deal was found by Cheapflights users on 2/20. 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.
sam. 3/225:30 pmONT - PDX
1 stop6h 29mDelta
sam. 3/295:10 pmPDX - ONT
1 stop5h 12mDelta
Deal found 2/20$183
This Expedia deal was found by Cheapflights users on 2/19. 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.
mer. 5/286:00 amONT - PDX
1 stop6h 18mMultiple Airlines
dim. 6/12:54 pmPDX - ONT
Nonstop2h 21mMultiple Airlines
Deal found 2/19$205
This Delta deal was found by Cheapflights users on 2/20. 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.
mer. 3/265:30 pmONT - BOI
1 stop5h 16mDelta
mar. 4/110:50 amBOI - ONT
1 stop6h 52mDelta
Deal found 2/20$217
This United Airlines deal was found by Cheapflights users on 2/19. 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.
mer. 5/286:00 amONT - PDX
1 stop6h 33mUnited Airlines
dim. 6/15:30 amPDX - ONT
1 stop6h 44mUnited Airlines
Deal found 2/19$233
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
sam. 4/127:00 amONT - BOI
1 stop5h 09mAlaska Airlines
lun. 4/146:18 pmBOI - ONT
1 stop6h 41mAlaska Airlines
Deal found 2/19$234
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
mer. 3/196:00 amONT - MFR
1 stop5h 07mAlaska Airlines
mer. 3/263:22 pmMFR - ONT
1 stop8h 37mAlaska Airlines
Deal found 2/19$238
This Hawaiian Airlines deal was found by Cheapflights users on 2/19. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/309:56 amONT - RDM
1 stop5h 22mHawaiian Airlines
lun. 5/55:40 pmRDM - ONT
1 stop6h 19mHawaiian Airlines
Deal found 2/19$241
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
mer. 3/124:20 pmONT - EUG
1 stop4h 50mAlaska Airlines
sam. 3/158:40 amEUG - ONT
1 stop12h 20mAlaska Airlines
Deal found 2/20$241

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 février 20, 2025.

Fly from

Ontario

Fly to

Oregon

Route

Depart

Return

Price

OntarioPortland

ONT - PDX

ONTPDX

Ontario

jeu. 5/29

11:28 am-1:54 pm

Nonstop2h 26m

Portland

dim. 6/1

2:54 pm-5:15 pm

Nonstop2h 21m

$124

OntarioPortland

ONT - PDX

ONTPDX

Ontario

mer. 4/2

6:55 am-9:19 am

Nonstop2h 24m

Portland

mer. 4/9

7:05 am-9:28 am

Nonstop2h 23m

$157

OntarioPortland

ONT - PDX

ONTPDX

Ontario

jeu. 5/29

11:28 am-1:54 pm

Nonstop2h 26m

Portland

mer. 6/4

9:41 pm-11:57 pm

Nonstop2h 16m

$158

OntarioPortland

ONT - PDX

ONTPDX

Ontario

jeu. 3/13

11:45 am-2:18 pm

Nonstop2h 33m

Portland

lun. 3/17

8:42 am-11:05 am

Nonstop2h 23m

$185

OntarioPortland

ONT - PDX

ONTPDX

Ontario

ven. 3/14

7:10 pm-12:05 am

1 stop4h 55m

Portland

mar. 3/18

5:00 am-1:25 pm

2 stops8h 25m

$192

OntarioPortland

ONT - PDX

ONTPDX

Ontario

jeu. 3/13

1:30 pm-6:06 pm

1 stop4h 36m

Portland

lun. 3/17

7:05 pm-11:56 pm

1 stop4h 51m

$196

OntarioBoise

ONT - BOI

ONTBOI

Ontario

mer. 3/26

5:30 pm-11:46 pm

1 stop5h 16m

Boise Air Term. Gowen Fld

mar. 4/1

10:50 am-4:42 pm

1 stop6h 52m

$217

OntarioPortland

ONT - PDX

ONTPDX

Ontario

mer. 6/4

6:00 am-12:33 pm

1 stop6h 33m

Portland

mar. 6/10

7:40 am-12:14 pm

1 stop4h 34m

$233

OntarioBoise

ONT - BOI

ONTBOI

Ontario

sam. 4/12

7:00 am-1:09 pm

1 stop5h 09m

Boise Air Term. Gowen Fld

lun. 4/14

6:18 pm-11:59 pm

1 stop6h 41m

$234

OntarioMedford

ONT - MFR

ONTMFR

Ontario

mer. 3/19

6:00 am-11:07 am

1 stop5h 07m

Medford

mer. 3/26

3:22 pm-11:59 pm

1 stop8h 37m

$238

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 60 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 février 20, 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 février 20, 2025.

The most flights from ONT to USOR are scheduled on a Wednesday (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 février 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta 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
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.1

Crew

8.7

Food

7.1

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

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 119 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?

    $44 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 Hawaiian Airlines, with prices starting from $79 and $88, 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 SkyWest Airlines (84%), Alaska Airlines (78%) or Hawaiian Airlines (77%) 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 $292 for a flight from Ontario to Oregon. The cheapest flight overall is $39 while the most popular route, (Ontario - Portland) is currently priced at $125.

  • 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 février 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$48Average$96FlexibilityNo cancel feeOn-time65%
FrontierCheapest$55Average$120FlexibilityNo cancel feeOn-time62%
Avelo AirlinesCheapest$142Average$187FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$156Average$351FlexibilityNo cancel feeOn-time75%
DeltaCheapest$163Average$347FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$164Average$441FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$172Average$368FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$246Average$331FlexibilityNo cancel feeOn-time71%
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