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

The number of flights available between Ontario and Oregon is 5 per day as of September 2025. The most frequent departure time is 10:00AM, with 61% of daily flights leaving at noon.

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

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

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

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

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 51% 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.

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 September 2025, there are 7 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.

$62 Cheap Flights from Ontario to Oregon in 2025/26

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Find the cheapest flights from Ontario to Oregon

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

12:05 pm - 2:31 pmONT-PDX

2h 26mnonstop

12:51 pm - 3:10 pmPDX-ONT

2h 19mnonstop

$108Frontier

Find Deal

Fri, Oct 31 - Mon, Nov 3

12:05 pm - 2:31 pmONT-PDX

2h 26mnonstop

12:51 pm - 3:10 pmPDX-ONT

2h 19mnonstop

$113Frontier

Find Deal

Fri, Oct 31 - Sun, Nov 2

7:10 am - 9:30 amONT-PDX

2h 20mnonstop

9:30 pm - 11:51 pmPDX-ONT

2h 21mnonstop

$130Alaska Airlines

Find Deal

Tue, Oct 14 - Wed, Oct 22

7:10 am - 9:30 amONT-PDX

2h 20mnonstop

10:40 am - 1:01 pmPDX-ONT

2h 21mnonstop

$134Alaska Airlines

Find Deal

Tue, Oct 21 - Sat, Oct 25

11:10 am - 3:20 pmONT-PDX

4h 10m1 stop

5:30 am - 9:45 amPDX-ONT

4h 15m1 stop

$151Southwest

Find Deal

Wed, Dec 31 - Sat, Jan 3

6:40 am - 12:15 pmONT-BOI

4h 35m1 stop

6:10 am - 12:10 pmBOI-ONT

7h 00m1 stop

$153Southwest

Find Deal

Tue, Oct 28 - Tue, Nov 4

5:50 pm - 12:08 amONT-BOI

5h 18m1 stop

4:46 pm - 10:41 pmBOI-ONT

6h 55m1 stop

$154Delta

Find Deal

Tue, Oct 14 - Tue, Oct 21

7:35 am - 12:49 pmONT-PDX

5h 14m1 stop

5:25 pm - 10:41 pmPDX-ONT

5h 16m1 stop

$157Delta

Find Deal

Sat, Oct 25 - Sat, Oct 25

1:53 pm - 6:25 pmONT-RDM

4h 32m1 stop

1:55 pm - 5:40 pmRDM-ONT

3h 45m1 stop

$326United Airlines

Find Deal

Sat, Oct 11 - Wed, Oct 15

6:36 pm - 12:07 pmONT-OTH

17h 31m1 stop

2:01 pm - 10:52 pmOTH-ONT

8h 51m1 stop

$465United Airlines

Find Deal

Thu, Oct 16 - Mon, Oct 20

Frontier flights from Ontario to Oregon

Our best Frontier deals on Ontario to Oregon flight tickets

Frontier

Oct 31

ONT12:05 pmOntario

2h 26m

PDX2:31 pmPortland

Nov 3

PDX12:51 pmPortland

2h 19m

ONT3:10 pmOntario

$108

Find similar

Frontier

Oct 31

ONT12:05 pmOntario

2h 26m

PDX2:31 pmPortland

Nov 2

PDX12:51 pmPortland

2h 19m

ONT3:10 pmOntario

$113

Find similar

Frontier

Oct 24

ONT8:32 amOntario

2h 26m

PDX10:58 amPortland

Oct 27

PDX7:30 pmPortland

2h 22m

ONT9:52 pmOntario

$114

Find similar

Alaska Airlines flights from Ontario to Oregon

Our best Alaska Airlines deals on Ontario to Oregon flight tickets

Alaska Airlines

Oct 14

ONT7:10 amOntario

2h 20m

PDX9:30 amPortland

Oct 22

PDX9:30 pmPortland

2h 21m

ONT11:51 pmOntario

$130

Find similar

Alaska Airlines

Oct 21

ONT7:10 amOntario

2h 20m

PDX9:30 amPortland

Oct 25

PDX10:40 amPortland

2h 21m

ONT1:01 pmOntario

$134

Find similar

Alaska Airlines

Oct 17

ONT7:10 amOntario

2h 20m

PDX9:30 amPortland

Oct 22

PDX9:30 pmPortland

2h 21m

ONT11:51 pmOntario

$137

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 10/31

12:05 pm-2:31 pm

Nonstop2h 26m

Portland

Mon 11/3

12:51 pm-3:10 pm

Nonstop2h 19m

$108

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Fri 10/31

12:05 pm-2:31 pm

Nonstop2h 26m

Portland

Sun 11/2

12:51 pm-3:10 pm

Nonstop2h 19m

$113

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Tue 10/14

7:10 am-9:30 am

Nonstop2h 20m

Portland

Wed 10/22

9:30 pm-11:51 pm

Nonstop2h 21m

$130

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Tue 10/21

7:10 am-9:30 am

Nonstop2h 20m

Portland

Sat 10/25

10:40 am-1:01 pm

Nonstop2h 21m

$134

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 12/31

11:10 am-3:20 pm

1 stop4h 10m

Portland

Sat 1/3

5:30 am-9:45 am

1 stop4h 15m

$151

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Tue 10/28

6:40 am-12:15 pm

1 stop4h 35m

Boise Air Term. Gowen Fld

Tue 11/4

6:10 am-12:10 pm

1 stop7h 00m

$153

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Tue 10/14

5:50 pm-12:08 am

1 stop5h 18m

Boise Air Term. Gowen Fld

Tue 10/21

4:46 pm-10:41 pm

1 stop6h 55m

$154

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Sat 10/25

7:35 am-12:49 pm

1 stop5h 14m

Portland

Sat 10/25

5:25 pm-10:41 pm

1 stop5h 16m

$157

OntarioRedmond

ONT - RDM

ONTRDM

Ontario

Sat 10/11

1:53 pm-6:25 pm

1 stop4h 32m

Bend/Redmond

Wed 10/15

1:55 pm-5:40 pm

1 stop3h 45m

$326

OntarioNorth Bend

ONT - OTH

ONTOTH

Ontario

Thu 10/16

6:36 pm-12:07 pm

1 stop17h 31m

North Bend

Mon 10/20

2:01 pm-10:52 pm

1 stop8h 51m

$465

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 October is, on average, the cheapest month to fly to Oregon from Ontario, with most prices found around $164. The month of January is another great option to travel to Oregon, with average flight prices from Ontario averaging around $176.

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 Monday. momondo users have found tickets for Monday departures for as low as $190. 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 $257.

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 $159. 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 $243. 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 $206 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 $161 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	$88
Fastest flight time	2h 17m
Direct flights	Every day
Airports in Oregon	2 airports

The best one-way flight to Oregon from Ontario in the past 72 hours is $88. The best round-trip flight deal from Ontario to Oregon found on momondo in the last 72 hours is $137.

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

Direct flights go from Ontario to Oregon every day.

There are 2 airports near Oregon: 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 September 2025, there are 7 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 (22.71% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (13.30%), Boeing 737 MAX 9 (11.58%), and Boeing 737 MAX 8 (10.56%).

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 $72	Free Cancellation	Rating 5.8 3,163 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $98	Free Cancellation	Rating 7.8 2,750 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $137	Free Cancellation	Rating 7.9 7,973 reviews	Search Delta flights
United Airlines	PriceFrom $153	Free Cancellation	Rating 7.4 8,928 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $156	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $156	Free Cancellation	Rating 8.0 4,246 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.

An easier way to manage your Oregon trip

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Find better results for your trip to Oregon

Popular cities in Oregon

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Flights to Seattlefrom $86

Cheap flights from Ontario to Oregon from $62

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 12/11. 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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Find the cheapest flights from Ontario to Oregon

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Ontario to Oregon

Our best Frontier deals on Ontario to Oregon flight tickets

Alaska Airlines flights from Ontario to Oregon

Our best Alaska Airlines 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 October is, on average, the cheapest month to fly to Oregon from Ontario, with most prices found around $164. The month of January is another great option to travel to Oregon, with average flight prices from Ontario averaging around $176.

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, Southwest, 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 5 per day as of September 2025. The most frequent departure time is 10:00AM, with 61% of daily flights leaving at noon.

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

35 flights are operational weekly from Ontario to Oregon as of September 2025. The most popular departure day for this route is Mon, 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