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 46% on flights from Casper to Ontario. Wednesday is the cheapest departure day at $308 round-trip on average, while Friday is the most expensive at $568, a difference of $260. 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 $458 to $1,347. That means the highest observed fare was about 3x higher than the lowest one.

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 averaging $60 for economy cars. Top options include: • Fox • Europcar • Thrifty • Alamo • Dollar

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

Round-trip flights from Casper to Ontario typically range from $308 to $506. The lowest price found in the past 5 days was $458, on United Airlines.

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

United Airlines ($458) 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 $385. 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 19m over the past 3 months.

$444 CHEAP FLIGHTS from Casper to Ontario (CPR - ONT)

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Cheapest round-trip

$458

Typical prices: $308-$506

United Airlines

Tue 1/30Sat 2/3

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

Last minute

Recent round-trip flight deals from Casper to Ontario

Sat, Jan 30 - Wed, Feb 3

9:00 am - 12:40 pmCPR Casper Natrona County-ONT Ontario

4h 40m1 stop Denver Intl

5:00 am - 2:43 pmONT Ontario-CPR Casper Natrona County

8h 43m1 stop Denver Intl

$458United Airlines

Sat, Jan 30 - Wed, Feb 3

7:00 am - 8:01 pmCPR Casper Natrona County-ONT Ontario

14h 01m2 stops Denver Intl San Francisco

5:00 am - 12:49 pmONT Ontario-CPR Casper Natrona County

6h 49m1 stop Denver Intl

$464United Airlines

Sat, Jan 30 - Wed, Feb 3

9:00 am - 12:40 pmCPR Casper Natrona County-ONT Ontario

4h 40m1 stop Denver Intl

5:00 am - 2:43 pmONT Ontario-CPR Casper Natrona County

8h 43m1 stop Denver Intl

$468United Airlines

Sat, Jan 30 - Wed, Feb 3

1:24 pm - 8:01 pmCPR Casper Natrona County-ONT Ontario

7h 37m2 stops Denver Intl San Francisco

7:25 am - 8:34 pmONT Ontario-CPR Casper Natrona County

12h 09m2 stops San Francisco Denver Intl

$469United Airlines

Sat, Jan 30 - Wed, Feb 3

7:00 am - 8:01 pmCPR Casper Natrona County-ONT Ontario

14h 01m2 stops Denver Intl San Francisco

5:00 am - 12:49 pmONT Ontario-CPR Casper Natrona County

6h 49m1 stop Denver Intl

$474United Airlines

Sat, Jan 30 - Wed, Feb 3

1:24 pm - 8:01 pmCPR Casper Natrona County-ONT Ontario

7h 37m2 stops Denver Intl San Francisco

7:25 am - 8:34 pmONT Ontario-CPR Casper Natrona County

12h 09m2 stops San Francisco Denver Intl

$479United Airlines

Fri, Jan 8 - Sun, Jan 17

3:18 pm - 9:00 pmCPR Casper Natrona County-ONT Ontario

6h 42m1 stop Denver Intl

5:00 am - 2:43 pmONT Ontario-CPR Casper Natrona County

8h 43m1 stop Denver Intl

$499United Airlines

Fri, Jan 8 - Sun, Jan 17

1:24 pm - 8:25 pmCPR Casper Natrona County-ONT Ontario

8h 01m2 stops Denver Intl San Francisco

5:00 am - 2:43 pmONT Ontario-CPR Casper Natrona County

8h 43m1 stop Denver Intl

$504United Airlines

Fri, Jan 8 - Sun, Jan 17

1:24 pm - 8:25 pmCPR Casper Natrona County-ONT Ontario

8h 01m2 stops Denver Intl San Francisco

6:00 am - 7:01 pmONT Ontario-CPR Casper Natrona County

12h 01m2 stops San Francisco Denver Intl

$509United Airlines

Sun, Jan 3 - Sat, Jan 9

1:19 pm - 9:00 pmCPR Casper Natrona County-ONT Ontario

8h 41m1 stop Denver Intl

1:42 pm - 8:34 pmONT Ontario-CPR Casper Natrona County

5h 52m1 stop Denver Intl

$528United 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 january.

Find deals

Cheapest flight	$458

Round-trip 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 $458 to $1,347. That means the highest observed fare was about 3x higher than the lowest one.
What car rental options are available at Ontario Airport (ONT)?
Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates averaging $60 for economy cars. Top options include:

• Fox
• Europcar
• Thrifty
• Alamo
• Dollar
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 46% on flights from Casper to Ontario. Wednesday is the cheapest departure day at $308 round-trip on average, while Friday is the most expensive at $568, a difference of $260.

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 $308, about $260 less than Friday fares (46% 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
• Ontario Airport Inn
• Holiday Inn Ontario Airport By IHG

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CPR - ONT

$444 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

Recent last minute 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