ONT

$97 Find Cheap Flights from Oregon to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Oregon to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Oregon to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Oregon to Ontario

Wed, Aug 19 - Wed, Aug 26
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:50 pm - 7:45 pm
ONT
-
BOI
1h 55mnonstop
$177Alaska Airlines
Tue, Aug 25 - Tue, Sep 1
Delta Logo
6:00 am - 8:52 am
BOI
-
ONT
3h 52m
1 stop
Delta Logo
5:05 pm - 9:59 pm
ONT
-
BOI
3h 54m
1 stop
$187Delta
Sat, Sep 12 - Sat, Sep 19
Frontier Logo
3:22 pm - 11:55 pm
PDX
-
ONT
8h 33m
1 stop
Frontier Logo
6:00 am - 4:35 pm
ONT
-
PDX
10h 35m
1 stop
$240Frontier
Thu, Jul 16 - Mon, Jul 20
Frontier Logo
6:49 pm - 3:54 pm
PDX
-
ONT
21h 05m
1 stop
Frontier Logo
6:00 am - 4:51 pm
ONT
-
PDX
10h 51m
1 stop
$241Frontier
Tue, Aug 25 - Sat, Aug 29
Southwest Logo
5:50 am - 12:40 pm
PDX
-
ONT
6h 50m
1 stop
Southwest Logo
11:00 am - 6:25 pm
ONT
-
PDX
7h 25m
2 stops
$252Southwest
Fri, Jul 24 - Sun, Jul 26
Multiple Airlines Logo
9:11 pm - 3:14 pm
MFR
-
ONT
18h 03m
1 stop
Multiple Airlines Logo
3:40 pm - 8:43 pm
ONT
-
MFR
5h 03m
1 stop
$296Multiple Airlines
Thu, Aug 6 - Thu, Aug 13
Multiple Airlines Logo
9:38 pm - 8:03 am
MFR
-
ONT
10h 25m
1 stop
Multiple Airlines Logo
4:09 pm - 8:48 pm
ONT
-
MFR
4h 39m
1 stop
$319Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
Southwest Logo
5:40 am - 12:40 pm
EUG
-
ONT
7h 00m
2 stops
Southwest Logo
4:45 pm - 9:10 pm
ONT
-
EUG
4h 25m
1 stop
$338Southwest
Thu, Jul 16 - Sun, Jul 19
United Airlines Logo
3:51 pm - 10:37 pm
RDM
-
ONT
6h 46m
1 stop
United Airlines Logo
6:00 am - 12:12 pm
ONT
-
RDM
6h 12m
1 stop
$338United Airlines
Wed, Jul 8 - Sun, Jul 12
United Airlines Logo
2:04 pm - 5:54 pm
OTH
-
ONT
3h 50m
1 stop
United Airlines Logo
5:00 am - 1:23 pm
ONT
-
OTH
8h 23m
1 stop
$339United Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$97
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Portland to Ontario

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

Ontario (ONT)