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

48 flights are operational weekly from Ontario to Oregon as of August 2025. The most popular departure day for this route is Fri, with 17% 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 55% of people opting to fly with this airline when traveling to Oregon. Keep in mind that there are 10 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, Alaska Airlines, and Delta are the most popular carriers operating from Ontario to Oregon

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 August 2025. The most frequent departure time is 7:00AM, with 60% of daily flights leaving at noon.

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 August 2025, there are 8 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.

$63 Cheap Flights from Ontario to Oregon in 2025

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Find the cheapest flights from Ontario to Oregon

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:25 am - 10:51 amONT-PDX

2h 26mnonstop

6:43 pm - 9:05 pmPDX-ONT

2h 22mnonstop

$126Frontier

Find Deal

Mon, Oct 20 - Fri, Oct 24

8:25 am - 10:51 amONT-PDX

2h 26mnonstop

6:40 pm - 9:02 pmPDX-ONT

2h 22mnonstop

$143Frontier

Find Deal

Fri, Nov 7 - Sun, Nov 9

7:10 am - 9:30 amONT-PDX

2h 20mnonstop

7:40 am - 10:01 amPDX-ONT

2h 21mnonstop

$157Alaska Airlines

Find Deal

Sat, Oct 11 - Tue, Oct 14

7:10 am - 9:30 amONT-PDX

2h 20mnonstop

9:30 pm - 11:51 pmPDX-ONT

2h 21mnonstop

$163Hawaiian Airlines

Find Deal

Thu, Oct 16 - Sun, Oct 19

5:49 pm - 8:12 pmONT-PDX

2h 23mnonstop

9:30 pm - 11:54 pmPDX-ONT

2h 24mnonstop

$167Alaska Airlines

Find Deal

Sat, Sep 13 - Mon, Sep 22

3:15 pm - 9:10 pmONT-PDX

5h 55m1 stop

5:35 am - 12:40 pmPDX-ONT

7h 05m2 stops

$192Southwest

Find Deal

Sat, Sep 6 - Fri, Sep 19

6:50 pm - 10:50 pmONT-EUG

4h 00m1 stop

6:00 am - 12:13 pmEUG-ONT

6h 13m1 stop

$232United Airlines

Find Deal

Sat, Aug 23 - Wed, Aug 27

6:00 am - 12:37 pmONT-RDM

6h 37m1 stop

5:58 pm - 12:03 amRDM-ONT

6h 05m1 stop

$236Hawaiian Airlines

Find Deal

Thu, Sep 11 - Mon, Sep 15

6:50 pm - 10:50 pmONT-EUG

4h 00m1 stop

6:00 am - 12:13 pmEUG-ONT

6h 13m1 stop

$238United Airlines

Find Deal

Thu, Aug 21 - Sun, Aug 24

2:35 pm - 10:25 pmONT-BOI

6h 50m2 stops

5:45 pm - 8:25 pmBOI-ONT

3h 40m1 stop

$240Southwest

Find Deal

Wed, Aug 27 - Mon, Sep 15

Delta flights from Ontario to Oregon

Our best Delta deals on Ontario to Oregon flight tickets

Delta

Oct 11

ONT11:48 amOntario

7h 30m

1 stop

PDX7:18 pmPortland

Oct 14

PDX7:05 pmPortland

4h 34m

1 stop

ONT11:39 pmOntario

$177

Find similar

Delta

Oct 11

ONT11:48 amOntario

7h 30m

1 stop

PDX7:18 pmPortland

Oct 14

PDX5:50 pmPortland

4h 59m

1 stop

ONT10:49 pmOntario

$197

Find similar

Delta

Sep 4

ONT11:40 amOntario

5h 36m

1 stop

BOI6:16 pmBoise Air Term. Gowen Fld

Sep 8

BOI6:00 pmBoise Air Term. Gowen Fld

5h 40m

1 stop

ONT10:40 pmOntario

$235

Find similar

Frontier flights from Ontario to Oregon

Our best Frontier deals on Ontario to Oregon flight tickets

Frontier

Oct 20

ONT8:25 amOntario

2h 26m

PDX10:51 amPortland

Oct 24

PDX6:43 pmPortland

2h 22m

ONT9:05 pmOntario

$126

Find similar

Frontier

Nov 7

ONT8:25 amOntario

2h 26m

PDX10:51 amPortland

Nov 9

PDX6:40 pmPortland

2h 22m

ONT9:02 pmOntario

$143

Find similar

Frontier

Aug 14

ONT2:31 pmOntario

2h 18m

PDX4:49 pmPortland

Aug 15

PDX11:13 amPortland

2h 23m

ONT1:36 pmOntario

$145

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Mon 10/20

8:25 am-10:51 am

Nonstop2h 26m

Portland

Fri 10/24

6:43 pm-9:05 pm

Nonstop2h 22m

$126

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 11/7

8:25 am-10:51 am

Nonstop2h 26m

Portland

Sun 11/9

6:40 pm-9:02 pm

Nonstop2h 22m

$143

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 10/11

7:10 am-9:30 am

Nonstop2h 20m

Portland

Tue 10/14

7:40 am-10:01 am

Nonstop2h 21m

$157

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Thu 10/16

7:10 am-9:30 am

Nonstop2h 20m

Portland

Sun 10/19

9:30 pm-11:51 pm

Nonstop2h 21m

$163

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 9/13

5:49 pm-8:12 pm

Nonstop2h 23m

Portland

Mon 9/22

9:30 pm-11:54 pm

Nonstop2h 24m

$167

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 9/6

3:15 pm-9:10 pm

1 stop5h 55m

Portland

Fri 9/19

5:35 am-12:40 pm

2 stops7h 05m

$192

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Sat 8/23

6:50 pm-10:50 pm

1 stop4h 00m

Eugene

Wed 8/27

6:00 am-12:13 pm

1 stop6h 13m

$232

OntarioRedmond

ONT - RDM

ONTRDM

Ontario

Thu 9/11

6:00 am-12:37 pm

1 stop6h 37m

Bend/Redmond

Mon 9/15

5:58 pm-12:03 am

1 stop6h 05m

$236

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Thu 8/21

6:50 pm-10:50 pm

1 stop4h 00m

Eugene

Sun 8/24

6:00 am-12:13 pm

1 stop6h 13m

$238

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Wed 8/27

2:35 pm-10:25 pm

2 stops6h 50m

Boise Air Term. Gowen Fld

Mon 9/15

5:45 pm-8:25 pm

1 stop3h 40m

$240

Flights are sorted by cheapest round-trip flights first.

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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 August is, on average, the cheapest month to fly to Oregon from Ontario, with most prices found around $156. The month of September is another great option to travel to Oregon, with average flight prices from Ontario averaging around $156.

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 Thursday. momondo users have found tickets for Thursday departures for as low as $191. 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 $253.

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 in the afternoon. momondo users have found flights departing from Ontario to Oregon in the afternoon for as low as $157. 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 morning, with an average ticket price of $247. Departure times in the morning 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 $197 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 $140 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	$63
Fastest flight time	2h 17m
Direct flights	Every day
Airports in Oregon	3 airports

The best one-way flight to Oregon from Ontario in the past 72 hours is $63. The best round-trip flight deal from Ontario to Oregon found on momondo in the last 72 hours is $126.

The fastest flight from Ontario to Oregon takes 2h 17m

Direct flights go from Ontario to Oregon every day.

There are 3 airports near Oregon: Portland (PDX), Eugene (EUG), 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 August 2025, there are 8 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 Embraer 175 (21.79% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (13.48%), Boeing 737 MAX 8 (12.80%), and Airbus A321-100/200 (12.36%).

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
Spirit Airlines	PriceFrom $45	Free Cancellation	Rating 6.3 8,054 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $58	Free Cancellation	Rating 5.8 3,241 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $108	Free Cancellation	Rating 7.8 2,611 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $137	Free Cancellation	Rating 8.0 7,983 reviews	Search Delta flights
Alaska Airlines	PriceFrom $156	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $172	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
United Airlines	PriceFrom $176	Free Cancellation	Rating 7.4 8,904 reviews	Search United Airlines 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.

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.

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Find better results for your trip to Oregon

Popular cities in Oregon

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Flights to Seattlefrom $93

Cheap flights from Ontario to Oregon from $63

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 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Ontario to Oregon

Cheap round-trip flights

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Cheap last minute flights

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Delta flights from Ontario to Oregon

Our best Delta deals on Ontario to Oregon flight tickets

Frontier flights from Ontario to Oregon

Our best Frontier deals on Ontario to Oregon flight tickets

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Use the filters below to find and compare flights from Ontario to Oregon that are best for you.

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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

What is the cheapest month to fly to Oregon?

The month of August is, on average, the cheapest month to fly to Oregon from Ontario, with most prices found around $156. The month of September is another great option to travel to Oregon, with average flight prices from Ontario averaging around $156.

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?

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

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

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.

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

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

What airlines fly to Oregon?

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 August 2025. The most frequent departure time is 7:00AM, with 60% of daily flights leaving at noon.

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

48 flights are operational weekly from Ontario to Oregon as of August 2025. The most popular departure day for this route is Fri, with 17% of flights per week taking off on this day.

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

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

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

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

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

What is the most popular plane model from Ontario to 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?

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

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

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

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

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

Popular cities in Oregon

Popular flights according to clicks in the last 7 days on momondo