ONT - CPR

$249 Find Cheap Flights from Ontario to Casper

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Casper departing on 6/9. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Casper, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Casper, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Ontario to Casper (ONT-CPR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Casper 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.

Recent round-trip flight deals from Ontario to Casper

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Casper.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
5:10 am - 12:43 pmONT-CPR
6h 33m1 stop
United Airlines Logo
11:15 am - 5:27 pmCPR-ONT
7h 12m1 stop
$291United Airlines
Find Deal
Sat, Jun 14 - Sat, Jun 21
United Airlines Logo
5:10 am - 12:43 pmONT-CPR
6h 33m1 stop
United Airlines Logo
5:30 am - 12:14 pmCPR-ONT
7h 44m2 stops
$351United Airlines
Find Deal
Sat, Jun 14 - Sat, Jun 21
United Airlines Logo
5:05 am - 12:39 pmONT-CPR
6h 34m1 stop
United Airlines Logo
11:29 am - 10:52 pmCPR-ONT
12h 23m2 stops
$374United Airlines
Find Deal
Fri, Jul 11 - Mon, Jul 14
United Airlines Logo
1:33 pm - 10:13 pmONT-CPR
7h 40m1 stop
United Airlines Logo
3:11 pm - 9:04 pmCPR-ONT
6h 53m1 stop
$403United Airlines
Find Deal
Fri, Jun 6 - Sun, Jun 8
United Airlines Logo
6:32 pm - 4:52 pmONT-CPR
21h 20m1 stop
United Airlines Logo
1:29 pm - 9:04 pmCPR-ONT
8h 35m1 stop
$437United Airlines
Find Deal
Thu, Jun 19 - Mon, Jun 23
United Airlines Logo
5:05 am - 2:40 pmONT-CPR
8h 35m1 stop
United Airlines Logo
9:03 am - 5:25 pmCPR-ONT
9h 22m1 stop
$473United Airlines
Find Deal
Fri, Jul 11 - Mon, Jul 14
United Airlines Logo
6:34 pm - 2:35 pmONT-CPR
19h 01m2 stops
United Airlines Logo
11:33 am - 5:25 pmCPR-ONT
6h 52m1 stop
$517United Airlines
Find Deal
Fri, Jun 6 - Sun, Jun 8
United Airlines Logo
6:41 pm - 4:52 pmONT-CPR
21h 11m2 stops
United Airlines Logo
1:29 pm - 9:04 pmCPR-ONT
8h 35m1 stop
$524United Airlines
Find Deal
Thu, Jun 19 - Mon, Jun 23
United Airlines Logo
1:20 pm - 10:11 pmONT-CPR
7h 51m1 stop
United Airlines Logo
5:25 am - 12:38 pmCPR-ONT
8h 13m1 stop
$578United Airlines
Find Deal
Wed, May 14 - Fri, May 16
United Airlines Logo
6:00 am - 4:56 pmONT-CPR
9h 56m2 stops
United Airlines Logo
5:25 am - 12:38 pmCPR-ONT
8h 13m1 stop
$584United Airlines
Find Deal
Wed, May 14 - Fri, May 16
Useful Info

Good to know

Low seasonApril
High seasonDecember
Cheapest flight$249
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Ontario to Casper

When to book flights from Ontario to Casper

Are your dates flexible? Find out the best times to travel from Ontario to Casper based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Casper

  • What is the cheapest flight from Ontario to Casper?

    In the last 3 days, the lowest price for a flight from Ontario to Casper was $249 for a one-way ticket and $291 for a round-trip.

  • Do I need a passport to fly between Ontario and Casper?

    No, a passport isn't needed to fly from Ontario to Casper. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Ontario to Casper?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Casper?

    Star Alliance is the only airline alliance operating flights between Ontario and Casper.

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

    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 Ontario to Casper.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Casper from Ontario 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 Ontario to Casper?

    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 Casper with an airline and back to Ontario with another airline. Booking your flights between Ontario and CPR can sometimes prove cheaper using this method.

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

    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 Casper from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Ontario to Casper

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Casper. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Casper? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8696 reviews
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
Airline reviews

The gate was too far away for the connecting flight

8.0 ExcellentAnonymous, Mar 2025LAX - SFO
Read more United Airlines reviews

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Plane left & arrived early- 5 Crew great. Wi fi - paid for 2, only 1 worked - so so. Waste of $. Coolie was good

There was no USB plug in my section of the plane. So I could not charge my phone. Also, there was no screen to watch movie or anything like that. Wish I had known that in advance, I would’ve brought my iPad.

Made all groups except 2 check despite ample bin space. Inflight WiFi and entertainment didn’t work most of the time.

Everything you need to know for your flight from Ontario to Casper

Information on your arrival and departure airports

Casper (CPR)
Ontario (ONT)

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