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 56% 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.

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

The number of flights available between Ontario and Oregon is 3 per day as of May 2026. The most frequent departure time is 10:00AM, with 70% of daily flights leaving at noon.

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

26 flights are operational weekly from Ontario to Oregon as of May 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.

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

Alaska Airlines, Delta, and United Airlines 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 May 2026, 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.

$89 Cheap Flights from Ontario to Oregon in 2026

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Find the cheapest flights from Ontario to Oregon

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:48 pm - 10:47 pm

ONT

BOI

1h 59mnonstop

4:14 pm - 5:17 pm

BOI

ONT

2h 03mnonstop

$177Alaska Airlines

Sat, Jun 6 - Mon, Jun 8

7:48 pm - 10:47 pm

ONT

BOI

1h 59mnonstop

4:14 pm - 5:17 pm

BOI

ONT

2h 03mnonstop

$197Alaska Airlines

Fri, Jun 5 - Mon, Jun 8

6:00 am - 12:09 pm

ONT

BOI

5h 09m

1 stop

1:04 pm - 11:49 pm

BOI

ONT

11h 45m

1 stop

$204Frontier

Thu, Aug 27 - Tue, Sep 1

3:40 pm - 6:04 pm

ONT

PDX

26h 24m

1 stop

6:59 pm - 7:53 pm

PDX

ONT

24h 54m

1 stop

$209Frontier

Wed, Jul 15 - Mon, Jul 20

5:45 am - 11:45 am

ONT

PDX

6h 00m

1 stop

9:00 am - 12:45 pm

PDX

ONT

3h 45m

1 stop

$212Southwest

Wed, Jun 3 - Sat, Jun 6

5:55 pm - 11:04 pm

ONT

BOI

4h 09m

1 stop

11:59 am - 4:41 pm

BOI

ONT

5h 42m

1 stop

$231Delta

Sat, Jun 6 - Sun, Jun 7

5:55 pm - 11:04 pm

ONT

BOI

4h 09m

1 stop

6:00 am - 8:50 am

BOI

ONT

3h 50m

1 stop

$232Delta

Sat, Jun 6 - Sun, Jun 7

1:50 pm - 6:56 pm

ONT

RDM

5h 06m

1 stop

5:55 am - 12:12 pm

RDM

ONT

6h 17m

1 stop

$305United Airlines

Mon, Jul 13 - Thu, Jul 16

6:25 pm - 10:15 pm

ONT

EUG

3h 50m

1 stop

1:40 pm - 10:10 pm

EUG

ONT

8h 30m

2 stops

$328Southwest

Wed, Jul 8 - Tue, Jul 14

6:00 am - 12:02 pm

ONT

MFR

6h 02m

1 stop

6:00 am - 12:12 pm

MFR

ONT

6h 12m

1 stop

$329United Airlines

Wed, Jun 10 - Wed, Jun 17

Southwest flights from Ontario to Oregon

Our best Southwest deals on Ontario to Oregon flight tickets

Southwest

Jun 3

ONT5:45 amOntario

6h 00m

1 stop

PDX11:45 amPortland

Jun 6

PDX9:00 amPortland

3h 45m

1 stop

ONT12:45 pmOntario

$212

Southwest

Jun 9

ONT3:30 pmOntario

3h 40m

1 stop

PDX7:10 pmPortland

Jun 20

PDX9:00 amPortland

3h 45m

1 stop

ONT12:45 pmOntario

$233

Southwest

Jun 10

ONT3:30 pmOntario

6h 55m

1 stop

PDX10:25 pmPortland

Jun 20

PDX9:00 amPortland

3h 45m

1 stop

ONT12:45 pmOntario

$238

Delta flights from Ontario to Oregon

Our best Delta deals on Ontario to Oregon flight tickets

Delta

Jul 21

ONT6:01 pmOntario

5h 53m

1 stop

PDX11:54 pmPortland

Jul 28

PDX12:23 pmPortland

4h 58m

1 stop

ONT5:21 pmOntario

$227

Delta

Jun 6

ONT5:55 pmOntario

4h 09m

1 stop

BOI11:04 pmBoise Air Term. Gowen Fld

Jun 7

BOI11:59 amBoise Air Term. Gowen Fld

5h 42m

1 stop

ONT4:41 pmOntario

$231

Delta

Jun 6

ONT5:55 pmOntario

4h 09m

1 stop

BOI11:04 pmBoise Air Term. Gowen Fld

Jun 9

BOI6:10 pmBoise Air Term. Gowen Fld

5h 31m

1 stop

ONT10:41 pmOntario

$232

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Sat 6/6

7:48 pm-10:47 pm

Nonstop1h 59m

Boise Air Term. Gowen Fld

Mon 6/8

4:14 pm-5:17 pm

Nonstop2h 03m

$177

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Fri 6/5

7:48 pm-10:47 pm

Nonstop1h 59m

Boise Air Term. Gowen Fld

Mon 6/8

4:14 pm-5:17 pm

Nonstop2h 03m

$197

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Thu 8/27

6:00 am-12:09 pm

1 stop5h 09m

Boise Air Term. Gowen Fld

Tue 9/1

1:04 pm-11:49 pm

1 stop11h 45m

$204

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 7/15

3:40 pm-6:04 pm

1 stop26h 24m

Portland

Mon 7/20

6:59 pm-7:53 pm

1 stop24h 54m

$209

OntarioPortland

ONT - PDX

ONTPDX

Ontario

Wed 6/3

5:45 am-11:45 am

1 stop6h 00m

Portland

Sat 6/6

9:00 am-12:45 pm

1 stop3h 45m

$212

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Sat 6/6

5:55 pm-11:04 pm

1 stop4h 09m

Boise Air Term. Gowen Fld

Sun 6/7

11:59 am-4:41 pm

1 stop5h 42m

$231

OntarioBoise

ONT - BOI

ONTBOI

Ontario

Sat 6/6

5:55 pm-11:04 pm

1 stop4h 09m

Boise Air Term. Gowen Fld

Sun 6/7

6:00 am-8:50 am

1 stop3h 50m

$232

OntarioRedmond

ONT - RDM

ONTRDM

Ontario

Mon 7/13

1:50 pm-6:56 pm

1 stop5h 06m

Bend/Redmond

Thu 7/16

5:55 am-12:12 pm

1 stop6h 17m

$305

OntarioEugene

ONT - EUG

ONTEUG

Ontario

Wed 7/8

6:25 pm-10:15 pm

1 stop3h 50m

Eugene

Tue 7/14

1:40 pm-10:10 pm

2 stops8h 30m

$328

OntarioMedford

ONT - MFR

ONTMFR

Ontario

Wed 6/10

6:00 am-12:02 pm

1 stop6h 02m

Medford

Wed 6/17

6:00 am-12:12 pm

1 stop6h 12m

$329

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 November is, on average, the cheapest month to fly to Oregon from Ontario, with most prices found around $39. The month of October is another great option to travel to Oregon, with average flight prices from Ontario averaging around $39.

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 $207. 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 $254.

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 $168. 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 $271. 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 from Ontario 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 $232 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 $149 on momondo.

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	$178
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 $178. The best round-trip flight deal from Ontario to Oregon found on momondo in the last 72 hours is $280.

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

Frequently asked questions about flying 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 May 2026, 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 Boeing 737-800 Passenger/BBJ2 (winglets) (28.56% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (13.91%), Boeing 737 MAX 9 (13.16%), and Embraer 175 (13.16%).

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 5.6 2,950 reviews	Search Frontier flights
Delta	PriceFrom $78	Free Cancellation	Rating 7.9 8,453 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $88	Free Cancellation	Rating 7.8 2,837 reviews	Search Hawaiian Airlines flights
Allegiant Air	PriceFrom $108	Free Cancellation	Rating 7.3 709 reviews	Search Allegiant Air flights
Alaska Airlines	PriceFrom $157	Free Cancellation	Rating 7.9 12,373 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $158	Free Cancellation	Rating 8.0 4,292 reviews	Search Southwest flights
United Airlines	PriceFrom $166	Free Cancellation	Rating 7.4 9,729 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.

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Popular cities in Oregon

Flights to New Yorkfrom $83

Flights to Los Angelesfrom $51

Flights to Orlandofrom $53

Flights to Miamifrom $56

Flights to Chicagofrom $60

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $49

Flights to Washington, D.C.from $55

Flights to Bostonfrom $74

Flights to Atlantafrom $54

Flights to Fort Lauderdalefrom $55

Flights to Dallasfrom $88

Cheap flights from Ontario to Oregon from $89

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 6/3. 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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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 from Ontario to Oregon?

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

Frequently asked questions about flying 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?

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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