How many flights depart from Ontario to Oregon on average per day?

The number of flights available between Ontario and Oregon is 6 per day as of March 2026. The most frequent departure time is 10:00AM, with 67% of daily flights leaving at noon.

How many flights depart from Ontario to Oregon on average per week?

45 flights are operational weekly from Ontario to Oregon as of March 2026. The most popular departure day for this route is Fri, with 18% of flights per week taking off on this day.

What airlines fly to Oregon?

Alaska Airlines, Frontier and Delta are the top three most popular airlines that fly to Oregon from Ontario according to our data. Alaska Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Oregon. Keep in mind that there are 11 different airlines that fly to Oregon on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to Oregon?

Frontier, Delta, and Southwest are the most popular carriers operating from Ontario to Oregon

When did momondo last update prices for flights from Ontario Airport to Oregon?

Prices for flights from Ontario Airport to Oregon were last updated today.

How many operators does momondo search for flights from Ontario Airport to Oregon?

As of March 2026, there are 6 operators available to choose from for flights from Ontario Airport to Oregon.

How old do you have to be to fly from Ontario Airport to Oregon?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Oregon.

What documentation or ID do you need to fly to Oregon?

The travel and health documents required for your trip to Oregon can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Oregon. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$70 Cheap Flights from Ontario to Oregon in 2026

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Find the cheapest flights from Ontario to Oregon

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:27 pm

ONT

BOI

5h 27m

1 stop

1:22 pm - 11:49 pm

BOI

ONT

11h 27m

1 stop

$140Frontier

Tue, May 12 - Tue, May 19

12:59 am - 11:08 am

ONT

BOI

9h 09m

1 stop

11:53 am - 7:31 am

BOI

ONT

20h 38m

1 stop

$151Frontier

Wed, Apr 15 - Sun, Apr 19

11:53 am - 6:52 pm

ONT

PDX

6h 59m

1 stop

5:30 am - 12:35 pm

PDX

ONT

7h 05m

1 stop

$175Delta

Wed, May 6 - Wed, May 27

6:25 pm - 9:26 pm

ONT

BOI

2h 01mnonstop

4:40 pm - 5:45 pm

BOI

ONT

2h 05mnonstop

$177Alaska Airlines

Wed, Apr 15 - Sat, Apr 18

9:30 am - 4:15 pm

ONT

BOI

5h 45m

1 stop

2:50 pm - 9:20 pm

BOI

ONT

7h 30m

1 stop

$187Southwest

Sat, May 2 - Sat, May 9

9:30 am - 4:15 pm

ONT

BOI

5h 45m

1 stop

2:00 pm - 7:40 pm

BOI

ONT

6h 40m

2 stops

$192Southwest

Sat, May 2 - Tue, May 5

6:25 pm - 9:26 pm

ONT

BOI

2h 01mnonstop

1:15 pm - 2:19 pm

BOI

ONT

2h 04mnonstop

$197Alaska Airlines

Mon, Apr 20 - Sat, Apr 25

5:55 pm - 11:58 pm

ONT

EUG

6h 03m

1 stop

6:15 am - 11:12 am

EUG

ONT

4h 57m

1 stop

$243Delta

Wed, May 6 - Tue, May 12

6:49 pm - 10:59 pm

ONT

EUG

4h 10m

1 stop

6:00 am - 9:56 am

EUG

ONT

3h 56m

1 stop

$267United Airlines

Mon, Apr 27 - Tue, Apr 28

6:59 pm - 10:59 pm

ONT

EUG

4h 00m

1 stop

6:48 pm - 10:50 pm

EUG

ONT

4h 02m

1 stop

$291United Airlines

Sat, May 9 - Sat, May 23

Alaska Airlines flights from Ontario to Oregon

Our best Alaska Airlines deals on Ontario to Oregon flight tickets

Alaska Airlines

Apr 15

ONT6:25 pmOntario

2h 01m

BOI9:26 pmBoise Air Term. Gowen Fld

Apr 18

BOI4:40 pmBoise Air Term. Gowen Fld

2h 05m

ONT5:45 pmOntario

$177

Alaska Airlines

Apr 21

ONT5:49 pmOntario

2h 27m

PDX8:16 pmPortland

Apr 25

PDX9:30 pmPortland

2h 18m

ONT11:48 pmOntario

$197

Alaska Airlines

May 2

ONT7:00 amOntario

2h 24m

PDX9:24 amPortland

May 4

PDX9:30 pmPortland

2h 18m

ONT11:48 pmOntario

$207

Frontier flights from Ontario to Oregon

Our best Frontier deals on Ontario to Oregon flight tickets

Frontier

May 12

ONT6:00 amOntario

5h 27m

1 stop

BOI12:27 pmBoise Air Term. Gowen Fld

May 19

BOI1:22 pmBoise Air Term. Gowen Fld

11h 27m

1 stop

ONT11:49 pmOntario

$140

Frontier

Apr 15

ONT12:59 amOntario

9h 09m

1 stop

BOI11:08 amBoise Air Term. Gowen Fld

Apr 19

BOI11:53 amBoise Air Term. Gowen Fld

20h 38m

1 stop

ONT7:31 amOntario

$151

Frontier

Apr 9

ONT11:00 amOntario

5h 24m

1 stop

PDX4:24 pmPortland

Apr 14

PDX1:48 pmPortland

10h 07m

1 stop

ONT11:55 pmOntario

$160

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Tue 5/12

6:00 am-12:27 pm

1 stop5h 27m

Boise Air Term. Gowen Fld

Tue 5/19

1:22 pm-11:49 pm

1 stop11h 27m

$140

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Wed 4/15

12:59 am-11:08 am

1 stop9h 09m

Boise Air Term. Gowen Fld

Sun 4/19

11:53 am-7:31 am

1 stop20h 38m

$151

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 5/6

11:53 am-6:52 pm

1 stop6h 59m

Portland

Wed 5/27

5:30 am-12:35 pm

1 stop7h 05m

$175

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Wed 4/15

6:25 pm-9:26 pm

Nonstop2h 01m

Boise Air Term. Gowen Fld

Sat 4/18

4:40 pm-5:45 pm

Nonstop2h 05m

$177

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Sat 5/2

9:30 am-4:15 pm

1 stop5h 45m

Boise Air Term. Gowen Fld

Sat 5/9

2:50 pm-9:20 pm

1 stop7h 30m

$187

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Sat 5/2

9:30 am-4:15 pm

1 stop5h 45m

Boise Air Term. Gowen Fld

Tue 5/5

2:00 pm-7:40 pm

2 stops6h 40m

$192

Quickest round-trip

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Mon 4/20

6:25 pm-9:26 pm

Nonstop2h 01m

Boise Air Term. Gowen Fld

Sat 4/25

1:15 pm-2:19 pm

Nonstop2h 04m

$197

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 5/6

5:55 pm-11:58 pm

1 stop6h 03m

Eugene

Tue 5/12

6:15 am-11:12 am

1 stop4h 57m

$243

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Mon 4/27

6:49 pm-10:59 pm

1 stop4h 10m

Eugene

Tue 4/28

6:00 am-9:56 am

1 stop3h 56m

$267

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 5/9

6:59 pm-10:59 pm

1 stop4h 00m

Eugene

Sat 5/23

6:48 pm-10:50 pm

1 stop4h 02m

$291

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Oregon

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Oregon?

The month of July is, on average, the cheapest month to fly to Oregon from Ontario, with most prices found around $182. The month of October is another great option to travel to Oregon, with average flight prices from Ontario averaging around $182.

What is the cheapest day to depart on your flight to Oregon?

On average, the least expensive day to fly to Oregon from Ontario is on a Friday. momondo users have found tickets for Friday departures for as low as $205. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Oregon is Sunday, with ticket prices averaging around $247.

What is the cheapest time of day to depart on your flight to Oregon?

According to our data, the cheapest time of day to fly to Oregon is at noon. momondo users have found flights departing from Ontario to Oregon at noon for as low as $164. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Oregon are more costly in the evening, with an average ticket price of $277. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ontario to Oregon flight route?

Fly from Ontario to Portland for the best Ontario - Oregon flight prices

How far in advance should I book a flight to Oregon?

You are more likely to see cheaper flights to Oregon from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Oregon for around $230 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oregon from Ontario for as low as $162 on momondo.

What cabin class options are available on Ontario to Oregon flights?

There are 4 cabin classes available to choose from on Ontario to Oregon flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ontario to Oregon flights?

No. A direct flight is the cheapest option for a flight between Ontario to Oregon.

Cheap Ontario to Oregon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Oregon

Best Price Found	$219
Fastest flight time	1h 55m
Direct flights	Every day
Airports in Oregon	64 airports

The best one-way flight to Oregon from Ontario in the past 72 hours is $219. The best round-trip flight deal from Ontario to Oregon found on momondo in the last 72 hours is $216.

The fastest flight from Ontario to Oregon takes 1h 55m

Direct flights go from Ontario to Oregon every day.

There are 64 airports in Oregon. From Ontario there are direct flights to Portland (PDX), Boise Air Term. Gowen Fld (BOI).

Search flight deals

When did momondo last update prices for flights from Ontario Airport to Oregon?
Prices for flights from Ontario Airport to Oregon were last updated today.
How many operators does momondo search for flights from Ontario Airport to Oregon?
As of March 2026, there are 6 operators available to choose from for flights from Ontario Airport to Oregon.
How old do you have to be to fly from Ontario Airport to Oregon?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Oregon.
What documentation or ID do you need to fly to Oregon?
The travel and health documents required for your trip to Oregon can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Oregon. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Ontario to Oregon?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Ontario to Oregon is Boeing 737-800 Passenger/BBJ2 (winglets) (28.70% of total bookings). The next most popular plane models are Embraer 175 (14.55%), Boeing 737 MAX 9 (11.93%), and Boeing 737-900 Passenger/BBJ3 (winglets) (11.01%).

Best airlines flying from Ontario to Oregon

Compare and see reviews for airlines that fly from Ontario to Oregon with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $76	Free Cancellation	Rating 5.7 3,013 reviews	Search Frontier flights
Delta	PriceFrom $78	Free Cancellation	Rating 7.9 8,356 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $88	Free Cancellation	Rating 7.8 2,839 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $157	Free Cancellation	Rating 7.9 12,133 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $157	Free Cancellation	Rating 7.4 9,499 reviews	Search United Airlines flights
Southwest	PriceFrom $158	Free Cancellation	Rating 8.0 4,333 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Oregon?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Oregon. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Oregon with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Oregon flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Oregon?

Once all potential Ontario to Oregon flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Oregon right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Oregon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Popular cities in Oregon

Flights to New Yorkfrom $58

Flights to Los Angelesfrom $53

Flights to Orlandofrom $49

Flights to Miamifrom $53

Flights to Chicagofrom $56

Flights to San Franciscofrom $55

Flights to Las Vegasfrom $35

Flights to Washington, D.C.from $51

Flights to Bostonfrom $76

Flights to Atlantafrom $49

Flights to Dallasfrom $56

Flights to Seattlefrom $80

Cheap flights from Ontario to Oregon from $70

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Oregon departing on 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Alaska Airlines flights from Ontario to Oregon

Our best Alaska Airlines deals on Ontario to Oregon flight tickets

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Our best Frontier deals on Ontario to Oregon flight tickets

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See travel insights to Oregon from

How to get the cheapest flight ticket from Ontario to Oregon

What is the cheapest month to fly to Oregon?

What is the cheapest day to depart on your flight to Oregon?

What is the cheapest time of day to depart on your flight to Oregon?

What is the cheapest Ontario to Oregon flight route?

How far in advance should I book a flight to Oregon?

What cabin class options are available on Ontario to Oregon flights?

Can stopping save me money on Ontario to Oregon flights?

What is the cheapest airline that flies from Ontario to Oregon?

What airlines fly to Oregon?

How many flights depart from Ontario to Oregon on average per day?

How many flights depart from Ontario to Oregon on average per week?

Cheap Ontario to Oregon flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Oregon

Best Price Found

Fastest flight time

Direct flights

Airports in Oregon

Best airlines flying from Ontario to Oregon

Compare and see reviews for airlines that fly from Ontario to Oregon with momondo

Why use momondo?

An easier way to manage your Oregon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Oregon

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