How does KAYAK find such low prices on flights from Oregon to Ontario?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oregon to Ontario. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oregon to Ontario?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Oregon is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Oregon to Ontario?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Oregon with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oregon to Ontario?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$79 CHEAP FLIGHTS from Oregon to Ontario

ONT

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

...and more

Travelers love KAYAK

41.299.237 searches in the past 7 days on KAYAK

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Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$137

Overall average: $297

Alaska Airlines

Sat 2/21Wed 2/25

BOI - ONT • Non-stop

Cheapest one-way

$79

Typical prices: $113-$288

Frontier

Mon 3/2

PDX - ONT • 1 stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Ontario!

Flight Deals

Cheap Flights from Oregon to Ontario

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Oregon to Ontario

Sat, Feb 21 - Wed, Feb 25

5:50 pm - 6:57 pm

BOI

ONT

2h 07mnonstop

7:59 pm - 10:58 pm

ONT

BOI

1h 59mnonstop

$137Alaska Airlines

Wed, Mar 25 - Tue, Mar 31

4:40 pm - 5:45 pm

BOI

ONT

2h 05mnonstop

6:25 pm - 9:26 pm

ONT

BOI

2h 01mnonstop

$147Alaska Airlines

Sat, Mar 7 - Mon, Mar 9

3:52 pm - 11:32 pm

PDX

ONT

7h 40m

1 stop

6:08 pm - 8:33 pm

ONT

PDX

2h 25mnonstop

$154Hawaiian Airlines

Fri, Feb 27 - Tue, Mar 3

9:30 pm - 11:52 pm

PDX

ONT

2h 22mnonstop

7:00 am - 9:28 am

ONT

PDX

2h 28mnonstop

$157Alaska Airlines

Sat, Apr 25 - Fri, May 1

12:27 pm - 11:55 pm

PDX

ONT

11h 28m

1 stop

12:59 am - 11:42 am

ONT

PDX

10h 43m

1 stop

$160Frontier

Mon, Mar 2 - Thu, Mar 12

3:50 pm - 7:54 pm

PDX

ONT

4h 04m

1 stop

6:15 am - 12:33 pm

ONT

PDX

6h 18m

1 stop

$162United Airlines

Sat, Feb 28 - Wed, Mar 4

5:25 pm - 9:44 pm

PDX

ONT

4h 19m

1 stop

1:10 pm - 6:16 pm

ONT

PDX

5h 06m

1 stop

$167Delta

Thu, May 7 - Sat, May 9

12:52 pm - 8:04 pm

PDX

ONT

7h 12m

1 stop

7:18 pm - 8:59 am

ONT

PDX

13h 41m

1 stop

$169Frontier

Sat, Mar 14 - Wed, Apr 1

5:30 pm - 10:33 pm

MFR

ONT

5h 03m

1 stop

5:53 pm - 10:50 pm

ONT

MFR

4h 57m

1 stop

$197Delta

Tue, Mar 31 - Sat, Apr 4

2:00 pm - 6:02 pm

EUG

ONT

4h 02m

1 stop

6:49 pm - 10:59 pm

ONT

EUG

4h 10m

1 stop

$267United Airlines

Useful Info

Low season	September
High season	March
Cheapest flight	$79

Best time to beat the crowds with an average 7% drop in price.

Flight from Portland to Ontario

How does KAYAK find such low prices on flights from Oregon to Ontario?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oregon to Ontario.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oregon to Ontario?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Oregon is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Oregon to Ontario?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Oregon with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oregon to Ontario?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ontario

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Ontario

Ontario (ONT)

ONT

$79 Find Cheap Flights from Oregon to Ontario

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

Everything you should know

Cheap Flights from Oregon to Ontario

Recent round-trip flight deals from Oregon to Ontario

Recent one-way flight deals from Oregon to Ontario

Recent last minute flight deals from Oregon to Ontario

Recent direct flight deals from Oregon to Ontario

Good to know

FAQs for booking flights from Oregon to Ontario

How does KAYAK find such low prices on flights from Oregon to Ontario?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oregon to Ontario.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oregon to Ontario?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Oregon is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Oregon to Ontario?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Oregon with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oregon to Ontario?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Cabin class types available on flights to Oregon

Complete your trip to Ontario with a hotel stay or car rental

Find direct flights for Ontario

Flights to other popular destinations

Flights from domestic origins to Ontario

Choose which airport to fly into in Ontario

Find deals for your return flight