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$38+ Cheap flights from Oregon to Ontario (ONT)

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ONT
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Oregon to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Oregon (USOR) to Ontario (ONT). 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 November 20, 2024.

Find flight deals from Oregon to Ontario

Cheapest flights from Oregon to Ontario
Explore the most affordable flight options available from Oregon to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/910:37 amPDX - ONT
Nonstop2h 20mFrontier
Fri 12/206:18 pmONT - PDX
Nonstop2h 21mFrontier
Deal found 11/19$90
This Travelocity deal was found by Cheapflights users on 11/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/610:37 amPDX - ONT
Nonstop2h 20mMultiple Airlines
Tue 12/101:53 pmONT - PDX
1 stop7h 02mMultiple Airlines
Deal found 11/19$122
This Alaska Airlines deal was found by Cheapflights users on 11/20. 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.
Wed 12/116:00 amPDX - ONT
1 stop6h 58mAlaska Airlines
Thu 12/127:00 amONT - PDX
Nonstop2h 25mAlaska Airlines
Deal found 11/20$166
This Delta deal was found by Cheapflights users on 11/20. 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.
Mon 12/95:19 pmPDX - ONT
1 stop6h 55mDelta
Wed 12/115:35 pmONT - PDX
1 stop5h 54mDelta
Deal found 11/20$171
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/175:25 pmMFR - ONT
1 stop5h 17mDelta
Thu 12/197:00 amONT - MFR
1 stop16h 17mDelta
Deal found 11/19$223
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/165:00 amEUG - ONT
1 stop5h 35mDelta
Wed 12/185:35 pmONT - EUG
1 stop5h 23mDelta
Deal found 11/19$223
This United Airlines deal was found by Cheapflights users on 11/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/251:34 pmPDX - ONT
1 stop4h 19mUnited Airlines
Tue 1/76:15 amONT - PDX
1 stop6h 19mUnited Airlines
Deal found 11/20$226
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/135:36 amBOI - ONT
1 stop5h 59mDelta
Mon 12/165:35 pmONT - BOI
1 stop5h 31mDelta
Deal found 11/19$243
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 12/118:22 amRDM - ONT
1 stop4h 36mAlaska Airlines
Sun 12/156:00 amONT - RDM
1 stop5h 00mAlaska Airlines
Deal found 11/19$256
This Alaska Airlines deal was found by Cheapflights users on 11/18. 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.
Mon 12/95:45 pmEUG - ONT
1 stop6h 14mAlaska Airlines
Tue 12/101:53 pmONT - EUG
1 stop7h 01mAlaska Airlines
Deal found 11/18$256
This Alaska Airlines deal was found by Cheapflights users on 11/18. 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 12/106:24 pmMFR - ONT
1 stop18h 34mAlaska Airlines
Sun 12/156:00 amONT - MFR
1 stop4h 59mAlaska Airlines
Deal found 11/18$274
This Delta deal was found by Cheapflights users on 11/20. 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.
Tue 11/265:25 amRDM - ONT
1 stop6h 46mDelta
Fri 11/295:40 amONT - RDM
1 stop5h 15mDelta
Deal found 11/20$317

Find flights from Oregon to Ontario within your budget

Customize your flight search to find flights from Oregon to Ontario 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandOntario

PDX - ONT

PDXONT

Portland

Fri 1/17

10:35 am-12:56 pm

Nonstop2h 21m

Ontario

Mon 1/20

8:01 am-10:27 am

Nonstop2h 26m

$87

PortlandOntario

PDX - ONT

PDXONT

Portland

Fri 12/6

10:37 am-12:57 pm

Nonstop2h 20m

Ontario

Tue 12/10

1:53 pm-8:55 pm

1 stop7h 02m

$122

PortlandOntario

PDX - ONT

PDXONT

Portland

Tue 1/7

2:45 pm-5:04 pm

Nonstop2h 19m

Ontario

Sat 1/18

11:14 am-1:38 pm

Nonstop2h 24m

$137

PortlandOntario

PDX - ONT

PDXONT

Portland

Mon 12/9

5:19 pm-12:14 am

1 stop6h 55m

Ontario

Wed 12/11

5:35 pm-11:29 pm

1 stop5h 54m

$171

EugeneOntario

EUG - ONT

EUGONT

Eugene

Wed 1/15

8:38 am-8:13 pm

1 stop11h 35m

Ontario

Sat 1/25

6:00 am-9:08 pm

1 stop15h 08m

$202

MedfordOntario

MFR - ONT

MFRONT

Medford

Wed 2/12

5:22 pm-10:32 pm

1 stop5h 10m

Ontario

Sat 2/15

4:05 pm-11:06 pm

1 stop7h 01m

$203

EugeneOntario

EUG - ONT

EUGONT

Eugene

Sat 1/11

3:00 pm-10:32 pm

1 stop7h 32m

Ontario

Sat 1/18

4:05 pm-10:34 pm

1 stop6h 29m

$203

PortlandOntario

PDX - ONT

PDXONT

Portland

Wed 12/18

7:30 pm-11:58 pm

1 stop4h 28m

Ontario

Wed 12/25

1:57 pm-8:23 pm

1 stop6h 26m

$226

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Sat 1/25

10:40 am-3:25 pm

1 stop5h 45m

Ontario

Sun 1/26

5:10 pm-12:18 am

1 stop6h 08m

$232

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Thu 1/9

11:00 am-3:11 pm

1 stop5h 11m

Ontario

Thu 1/9

6:39 pm-11:57 pm

1 stop4h 18m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 44 results
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Best time to book a flight from Oregon to Ontario

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

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

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

Currently, September is the cheapest month in which you can book a flight from Oregon to Ontario (average of $236). Flying from Oregon to Ontario in December is currently the most expensive (average of $298). 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 OR to ONT?

Find hourly flight availability from Oregon to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

When flying from Oregon to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated November 20, 2024.
See what other customers who have flown with Alaska Airlines, Southwest and American Airlines from Oregon to Ontario have to say. 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
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Oregon to Ontario. 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 into for flights to Ontario from Oregon?

    Ontario (ONT) is the airport you will fly into if you book a flight from Oregon to Ontario. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

  • How popular is this Oregon to Ontario flight route?

    This flight path from Oregon to Ontario was viewed by 170 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 Oregon to Ontario one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $39. Users have also found prices from $69 and $78 on Alaska Airlines and United Airlines, respectively.

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

    The most popular route from Oregon to Ontario is Portland - Ontario. You may also consider Boise Air Term. Gowen Fld - Ontario or Eugene - Ontario.

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

    No one likes to see their flight delayed. When booking a flight from Oregon to Ontario consider choosing Horizon Air (93%), Frontier (91%) or Alaska Airlines (88%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Oregon to Ontario?

    The cheapest flight price from Oregon to Ontario is $37. On average you can expect to pay $136. The most popular route, (Portland - Ontario), can usually be booked for $76.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Oregon to Ontario (average of $236). Flying from Oregon to Ontario in December is currently the most expensive (average of $298). 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 Oregon to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Oregon to Ontario

Discover the top 7 airlines that operate flights from Oregon to Ontario. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$52Average$124FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$69Average$126FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$156Average$342FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$186Average$423FlexibilityNo cancel feeOn-time69%
DeltaCheapest$215Average$334FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$364FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$256Average$374FlexibilityNo cancel feeOn-time63%
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