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.

$93 CHEAP FLIGHTS from Oregon to Ontario

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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

Sun, Nov 1 - Wed, Nov 4

12:31 pm - 11:16 amPDX Portland-ONT Ontario

22h 45m1 stop Las Vegas Harry Reid Intl

5:07 pm - 11:36 amONT Ontario-PDX Portland

18h 29m1 stop Las Vegas Harry Reid Intl

$243Frontier

Thu, Nov 5 - Thu, Nov 12

12:31 pm - 11:16 amPDX Portland-ONT Ontario

22h 45m1 stop Las Vegas Harry Reid Intl

2:23 pm - 11:36 amONT Ontario-PDX Portland

21h 13m1 stop Las Vegas Harry Reid Intl

$243Frontier

Mon, Nov 9 - Mon, Nov 16

2:50 pm - 7:28 pmPDX Portland-ONT Ontario

4h 38m1 stop San Francisco

12:01 pm - 4:34 pmONT Ontario-PDX Portland

4h 33m1 stop San Francisco

$255Multiple Airlines

Tue, Nov 3 - Tue, Nov 10

12:02 pm - 11:51 pmPDX Portland-ONT Ontario

11h 49m1 stop Denver Intl

4:09 pm - 11:00 pmONT Ontario-PDX Portland

6h 51m1 stop Seattle/Tacoma Intl

$256Multiple Airlines

Wed, Dec 2 - Tue, Dec 8

9:33 pm - 11:54 pmPDX Portland-ONT Ontario

2h 21mnonstop

6:01 pm - 8:31 pmONT Ontario-PDX Portland

2h 30mnonstop

$257Alaska Airlines

Sat, Jan 23 - Sat, Jan 30

7:42 am - 10:00 amPDX Portland-ONT Ontario

2h 18mnonstop

10:56 am - 1:20 pmONT Ontario-PDX Portland

2h 24mnonstop

$257Alaska Airlines

Wed, Oct 21 - Wed, Oct 28

5:30 pm - 9:20 pmPDX Portland-ONT Ontario

3h 50m1 stop Oakland

6:40 am - 10:10 amONT Ontario-PDX Portland

3h 30m1 stop Oakland

$268Southwest

Wed, Oct 28 - Wed, Oct 28

5:45 am - 9:40 amPDX Portland-ONT Ontario

3h 55m1 stop Oakland

5:00 pm - 11:40 pmONT Ontario-PDX Portland

6h 40m1 stop Phoenix Sky Harbor Intl

$277Southwest

Tue, Oct 27 - Sat, Oct 31

5:33 am - 12:36 pmPDX Portland-ONT Ontario

7h 03m1 stop Salt Lake City

6:00 am - 12:03 pmONT Ontario-PDX Portland

6h 03m1 stop Salt Lake City

$277Delta

Tue, Dec 1 - Wed, Dec 9

5:30 am - 11:17 amPDX Portland-ONT Ontario

5h 47m1 stop Seattle/Tacoma Intl

5:04 pm - 11:59 pmONT Ontario-PDX Portland

6h 55m1 stop Salt Lake City

$277Delta

Recent last minute flight deals from Oregon to Ontario

Mon, Sep 28 - Thu, Oct 29

12:39 pm - 4:59 pmPDX Portland-ONT Ontario

4h 20m1 stop Las Vegas Harry Reid Intl

2:23 pm - 11:36 amONT Ontario-PDX Portland

21h 13m1 stop Las Vegas Harry Reid Intl

$341Frontier

Sat, Sep 26 - Wed, Oct 21

12:24 pm - 7:04 amPDX Portland-ONT Ontario

18h 40m1 stop Las Vegas Harry Reid Intl

5:25 pm - 11:26 amONT Ontario-PDX Portland

18h 01m1 stop Las Vegas Harry Reid Intl

$345Frontier

Sat, Sep 26 - Mon, Oct 5

1:37 pm - 7:03 pmRDM Bend/Redmond-ONT Ontario

5h 26m1 stop Seattle/Tacoma Intl

6:02 am - 12:38 pmONT Ontario-RDM Bend/Redmond

6h 36m1 stop Seattle/Tacoma Intl

$420Alaska Airlines

Wed, Sep 30 - Mon, Oct 5

5:25 am - 9:48 amRDM Bend/Redmond-ONT Ontario

4h 23m1 stop Portland

6:02 am - 12:38 pmONT Ontario-RDM Bend/Redmond

6h 36m1 stop Seattle/Tacoma Intl

$420Alaska Airlines

Mon, Sep 28 - Thu, Oct 29

12:39 pm - 4:59 pmPDX Portland-ONT Ontario

4h 20m1 stop Las Vegas Harry Reid Intl

7:25 am - 9:45 amONT Ontario-PDX Portland

2h 20mnonstop

$434Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

5:10 am - 12:14 pmRDM Bend/Redmond-ONT Ontario

7h 04m1 stop Salt Lake City

1:35 pm - 11:06 pmONT Ontario-RDM Bend/Redmond

9h 31m2 stops Salt Lake City Seattle/Tacoma Intl

$465Delta

Sat, Sep 26 - Mon, Oct 5

6:15 am - 4:35 pmRDM Bend/Redmond-ONT Ontario

10h 20m2 stops Seattle/Tacoma Intl Salt Lake City

6:00 am - 1:04 pmONT Ontario-RDM Bend/Redmond

7h 04m1 stop Seattle/Tacoma Intl

$465Delta

Thu, Oct 1 - Mon, Oct 5

12:24 pm - 4:49 pmPDX Portland-ONT Ontario

4h 25m1 stop Las Vegas Harry Reid Intl

7:25 am - 9:45 amONT Ontario-PDX Portland

2h 20mnonstop

$488Multiple Airlines

Wed, Sep 30 - Fri, Oct 9

6:00 am - 10:23 amRDM Bend/Redmond-ONT Ontario

4h 23m1 stop San Francisco

4:03 pm - 10:30 pmONT Ontario-RDM Bend/Redmond

6h 27m1 stop San Francisco

$514United Airlines

Wed, Sep 30 - Sat, Oct 3

3:59 pm - 8:31 pmEUG Eugene-ONT Ontario

4h 32m1 stop San Francisco

1:52 pm - 6:12 pmONT Ontario-EUG Eugene

4h 20m1 stop San Francisco

$587United Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$93

Best time to beat the crowds with an average 9% drop in price.

Most popular time to fly and prices are also 18% lower on average.

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.