Which airports can I use when flying from Casper to Ontario?

Flights from Casper to Ontario usually depart from Casper Natrona County (CPR) and arrive at Ontario (ONT).

What cabin classes can I book on flights from Casper to Ontario?

Only Economy Class is available on flights from Casper to Ontario.

Which airports do connecting flights from Casper to Ontario pass through?

Most connecting flights from Casper to Ontario pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from Casper to Ontario?

Yes. Flexible dates can save you up to 76% on flights from Casper to Ontario. Wednesday is the cheapest departure day at $141 round-trip on average, while Friday is the most expensive at $568, a difference of $427. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Ontario?

Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Do I need a passport to fly from Casper to Ontario?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Casper to Ontario changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $328 to $701. That means the highest observed fare was about 2x higher than the lowest one.

How are flight prices from Casper to Ontario looking right now?

One-way fares from Casper to Ontario are currently higher than usual. Average one-way flight prices are about $700, which is 55% above the typical average for this route.

What is the time difference between Casper and Ontario?

Ontario is 1 hour behind Casper (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ontario Airport (ONT)?

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include: • Fox • Thrifty • Europcar • Dollar • Alamo

How much is a round-trip flight from Casper to Ontario?

Round-trip flights from Casper to Ontario typically range from $352 to $506. The lowest price found in the past 5 days was $328, on United Airlines.

Which airline is the cheapest to fly from Casper to Ontario?

United Airlines ($328) offered the cheapest round-trip ticket from Casper to Ontario in the last 5 days.

What is the cheapest layover airport when flying from Casper to Ontario?

Flights via Denver Intl (DEN) offer the most affordable fares, with an average round-trip price of $429. Based on KAYAK data over the past 3 months.

When flying from Casper to Ontario which airport offers the shortest layover?

Denver Intl (DEN) had the shortest average connection time for Casper to Ontario layovers at 4h 06m over the past 3 months.

$278 CHEAP FLIGHTS from Casper to Ontario (CPR - ONT)

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Cheapest round-trip

$328

Typical prices: $352-$506

United Airlines

Wed 10/17Sun 10/21

CPR - ONT • 1 stop

Cheapest one-way

$278

Typical prices: $450-$450

United Airlines

Mon 10/22

CPR - ONT • 1 stop

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Flight Deals

Cheap Flights from Casper to Ontario (CPR-ONT)

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

Round-trip

One-way

Recent round-trip flight deals from Casper to Ontario

Sat, Oct 17 - Wed, Oct 21

3:11 pm - 8:58 pmCPR Casper Natrona County-ONT Ontario

6h 47m1 stop Denver Intl

5:00 am - 10:48 amONT Ontario-CPR Casper Natrona County

4h 48m1 stop Denver Intl

$328United Airlines

Sat, Oct 17 - Wed, Oct 21

1:20 pm - 10:51 pmCPR Casper Natrona County-ONT Ontario

10h 31m2 stops Denver Intl San Francisco

1:24 pm - 8:17 pmONT Ontario-CPR Casper Natrona County

5h 53m1 stop Denver Intl

$334United Airlines

Sat, Oct 10 - Wed, Oct 14

3:11 pm - 8:58 pmCPR Casper Natrona County-ONT Ontario

6h 47m1 stop Denver Intl

1:24 pm - 8:17 pmONT Ontario-CPR Casper Natrona County

5h 53m1 stop Denver Intl

$406United Airlines

Sat, Oct 17 - Wed, Oct 21

10:06 am - 5:46 pmCPR Casper Natrona County-ONT Ontario

8h 40m2 stops Denver Intl San Francisco

1:52 pm - 10:04 pmONT Ontario-CPR Casper Natrona County

7h 12m2 stops San Francisco Denver Intl

$415United Airlines

Sat, Oct 10 - Wed, Oct 14

10:06 am - 5:46 pmCPR Casper Natrona County-ONT Ontario

8h 40m2 stops Denver Intl San Francisco

5:00 am - 10:48 amONT Ontario-CPR Casper Natrona County

4h 48m1 stop Denver Intl

$424United Airlines

Wed, Oct 14 - Wed, Oct 21

3:11 pm - 8:58 pmCPR Casper Natrona County-ONT Ontario

6h 47m1 stop Denver Intl

1:24 pm - 10:04 pmONT Ontario-CPR Casper Natrona County

7h 40m1 stop Denver Intl

$428United Airlines

Wed, Oct 14 - Sun, Oct 18

5:15 am - 8:31 pmCPR Casper Natrona County-ONT Ontario

16h 16m2 stops Denver Intl San Francisco

5:00 am - 10:48 amONT Ontario-CPR Casper Natrona County

4h 48m1 stop Denver Intl

$434United Airlines

Sat, Nov 14 - Tue, Nov 17

7:00 am - 6:01 pmCPR Casper Natrona County-ONT Ontario

12h 01m2 stops Denver Intl San Francisco

9:25 am - 8:32 pmONT Ontario-CPR Casper Natrona County

10h 07m2 stops San Francisco Denver Intl

$439United Airlines

Wed, Oct 7 - Wed, Oct 14

1:20 pm - 8:58 pmCPR Casper Natrona County-ONT Ontario

8h 38m1 stop Denver Intl

5:00 am - 10:48 amONT Ontario-CPR Casper Natrona County

4h 48m1 stop Denver Intl

$443United Airlines

Wed, Oct 14 - Thu, Dec 31

1:20 pm - 8:58 pmCPR Casper Natrona County-ONT Ontario

8h 38m1 stop Denver Intl

6:00 am - 9:59 pmONT Ontario-CPR Casper Natrona County

14h 59m2 stops San Francisco Denver Intl

$449United Airlines

Booking Insights

Price, demand and travel trends for Casper to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Casper to Ontario? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Casper to Ontario departing in october.

Find deals

Cheapest flight	$278

One-way flight from Casper to Ontario

When to book flights from Casper to Ontario

Are your dates flexible? Find out the best times to travel from Casper to Ontario 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.

What cabin classes can I book on flights from Casper to Ontario?
Only Economy Class is available on flights from Casper to Ontario.
Do I need a passport to fly from Casper to Ontario?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
Have flight prices from Casper to Ontario changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $328 to $701. That means the highest observed fare was about 2x higher than the lowest one.
How are flight prices from Casper to Ontario looking right now?
One-way fares from Casper to Ontario are currently higher than usual. Average one-way flight prices are about $700, which is 55% above the typical average for this route.
What car rental options are available at Ontario Airport (ONT)?
Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

• Fox
• Thrifty
• Europcar
• Dollar
• Alamo
Which airports can I use when flying from Casper to Ontario?
Flights from Casper to Ontario usually depart from Casper Natrona County (CPR) and arrive at Ontario (ONT).
Which airports do connecting flights from Casper to Ontario pass through?
Most connecting flights from Casper to Ontario pass through Denver Intl (DEN), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Casper to Ontario?
Yes. Flexible dates can save you up to 76% on flights from Casper to Ontario. Wednesday is the cheapest departure day at $141 round-trip on average, while Friday is the most expensive at $568, a difference of $427.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Casper and Ontario?
Ontario is 1 hour behind Casper (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ontario?
Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

If your dates are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $141, about $427 less than Friday fares (75% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

• Azure Hotel & Suites, Trademark Collection by Wyndham
• La Quinta Inn & Suites by Wyndham Ontario Airport
• Ontario Airport Inn

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CPR - ONT

$278 Find Cheap Flights from Casper to Ontario - Compare and Save

Everything you should know

Cheap Flights from Casper to Ontario (CPR-ONT)

Recent round-trip flight deals from Casper to Ontario

Recent one-way flight deals from Casper to Ontario

Price, demand and travel trends for Casper to Ontario flights

How much is a round-trip flight from Casper to Ontario?

Which airline is the cheapest to fly from Casper to Ontario?

What is the cheapest layover airport when flying from Casper to Ontario?

When flying from Casper to Ontario which airport offers the shortest layover?

Key details for Casper to Ontario flights

Cheapest flight

When to book flights from Casper to Ontario

Your Casper to Ontario flight questions, answered

Your guide to booking Casper to Ontario flights

More options for your flight from Casper to Ontario

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

Information on your arrival and departure airports

Cabin class types available on flights from Casper to Ontario

Find direct flights to and from Casper and Ontario

Flights from domestic origins to Ontario

Flights to other popular destinations

Find deals for your return flight