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ONT - CPR

Find cheap flights from Ontario to Casper from $308

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Casper departing on 8/20. 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
0 bags
Sat 5/25
Sat 6/1

Search 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
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

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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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:15 am - 2:35 pmONT-CPR
8h 20m1 stop
5:30 am - 12:32 pmCPR-ONT
8h 02m1 stop
$308United Airlines
Find Deal
Tue, Aug 20 - Sat, Aug 24
10:49 am - 12:39 pmONT-CPR
24h 50m2 stops
1:35 pm - 9:02 pmCPR-ONT
8h 27m1 stop
$397United Airlines
Find Deal
Tue, Aug 20 - Sat, Aug 24
5:20 am - 2:40 pmONT-CPR
8h 20m1 stop
5:40 am - 12:33 pmCPR-ONT
7h 53m1 stop
$413United Airlines
Find Deal
Sat, Jun 29 - Sat, Jul 6
5:15 am - 2:36 pmONT-CPR
8h 21m1 stop
1:35 pm - 8:48 pmCPR-ONT
8h 13m1 stop
$458United Airlines
Find Deal
Fri, May 24 - Fri, May 31
6:25 pm - 10:07 pmONT-CPR
26h 42m1 stop
5:40 am - 12:33 pmCPR-ONT
7h 53m1 stop
$507United Airlines
Find Deal
Fri, Jul 26 - Sun, Jul 28
6:25 pm - 10:07 pmONT-CPR
26h 42m1 stop
6:00 pm - 12:17 pmCPR-ONT
19h 17m2 stops
$521United Airlines
Find Deal
Fri, Jul 26 - Sun, Jul 28
12:05 pm - 10:49 amONT-CPR
21h 44m2 stops
5:40 am - 12:33 pmCPR-ONT
7h 53m1 stop
$531United Airlines
Find Deal
Sat, Jun 29 - Sat, Jul 6
6:20 am - 2:40 pmONT-CPR
31h 20m2 stops
6:00 pm - 12:17 pmCPR-ONT
19h 17m2 stops
$541United Airlines
Find Deal
Fri, Jul 26 - Sun, Jul 28
5:15 am - 4:59 pmONT-CPR
10h 44m1 stop
5:15 am - 12:40 pmCPR-ONT
8h 25m1 stop
$597United Airlines
Find Deal
Fri, May 17 - Mon, May 20
11:55 am - 11:57 pmONT-CPR
11h 02m2 stops
5:35 am - 1:18 pmCPR-ONT
8h 43m2 stops
$1,164Delta
Find Deal
Sat, Jun 29 - Sat, Jul 6

Flights from Ontario to Casper - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Casper to help you find the cheapest flights, the best time to fly and much more.

How far in advance should I book a flight from Ontario to Casper?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Casper, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Casper, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 8 days before departure.

Good to know

Cheapest flight

$308
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 $444 for a one-way ticket and $308 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, and SkyTeam are the airline alliances operating flights between Ontario and Casper, with SkyTeam being the most commonly used for this route.

  • 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.

See more FAQs

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 11234 reviews
7.7boarding
7.2comfort
7.1entertainment
6.7food
8.1crew
Airline reviews

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

2.0 MediocreAnonymous, Apr 2024SNA - IAH
Read more about United Airlines reviews

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

the head jack on my seat didn't work and the power outlet didn't work for my seat

Left 2 hours later for delayed I had to take care a kid with special need since people don’t want to move to accommodate the rest of the family. . It wasn’t bad but that made me upset that people can be that selfish.

For a 22 minute flight all you expect is for it to be safe and comfortable

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Wouldn’t let me check in said couldn’t find a ticket had to wait very long Time

Book cheap flights from Ontario to Casper

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Casper found on KAYAK in the last 72 hours.
4/30Tue
1 stopUnited Airlines
6h 24mONT-CPR
$444
5/24Fri
1 stopUnited Airlines
15h 24mONT-CPR
$453
4/30Tue
2 stopsUnited Airlines
8h 34mONT-CPR
$843
5/24Fri
2 stopsUnited Airlines
10h 02mONT-CPR
$1,038

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Ontario - Casper Flights

Departure:

Ontario (ONT)United States

Destination:

Casper (CPR)United States

Return flight deals:

Casper - Ontario

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