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

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

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

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

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

Most connecting flights from Ontario to Casper 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 Ontario to Casper?

Yes. Flexible dates can save you up to 68% on flights from Ontario to Casper. Friday is the cheapest departure day at $308 round-trip on average, while Sunday is the most expensive at $941, a difference of $633. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

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 Ontario to Casper 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 $426 to $1,688. That means the highest observed fare was about 4x higher than the lowest one.

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

One-way fares from Ontario to Casper are currently higher than usual. Average one-way flight prices are about $360, which is 48% above the typical average for this route.

What is the time difference between Ontario and Casper?

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

What car rental options are available at Casper Natrona County Airport (CPR)?

Casper Natrona County Airport (CPR) hosts 5 major car rental companies, with daily rates averaging $80 for economy cars. Top options include: • Budget • Avis • Hertz • Enterprise Rent-A-Car • Alamo

How much should I expect to pay for a Ontario to Casper flight?

Round-trip flights from Ontario to Casper range from $328 to $486, with an average of $373 over the past 12 months. Anything below $328 counts as a good deal.

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

Round-trip flights from Ontario to Casper typically range from $328 to $486. The lowest price found in the past 5 days was $426, on United Airlines.

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

United Airlines ($426) offered the cheapest round-trip ticket from Ontario to Casper in the last 5 days.

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

Flights via Denver Intl (DEN) offer the most affordable fares, with an average round-trip price of $446. Based on KAYAK data over the past 3 months.

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

Denver Intl (DEN) had the shortest average connection time for Ontario to Casper layovers at 3h 50m over the past 3 months.

$343 CHEAP FLIGHTS from Ontario to Casper (ONT - CPR)

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Cheapest round-trip

$426

Typical prices: $328-$486

United Airlines

Thu 11/22Sat 11/24

ONT - CPR • 1 stop

Cheapest one-way

$343

Typical prices: $243-$458

United Airlines

Sun 12/23

ONT - CPR • 1 stop

When to travel

August

Cheapest • 17% price drop

March

Most popular

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Flight Deals

Cheap Flights from Ontario to Casper (ONT-CPR)

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

Round-trip

One-way

Recent round-trip flight deals from Ontario to Casper

Sun, Nov 22 - Tue, Nov 24

5:00 am - 10:49 amONT Ontario-CPR Casper Natrona County

4h 49m1 stop Denver Intl

3:13 pm - 8:51 pmCPR Casper Natrona County-ONT Ontario

6h 38m1 stop Denver Intl

$426United Airlines

Wed, Dec 2 - Sat, Dec 5

1:40 pm - 8:42 pmONT Ontario-CPR Casper Natrona County

6h 02m1 stop Denver Intl

1:21 pm - 9:11 pmCPR Casper Natrona County-ONT Ontario

8h 50m1 stop Denver Intl

$458United Airlines

Wed, Dec 2 - Sat, Dec 5

1:40 pm - 8:42 pmONT Ontario-CPR Casper Natrona County

6h 02m1 stop Denver Intl

5:00 am - 12:34 pmCPR Casper Natrona County-ONT Ontario

8h 34m1 stop Denver Intl

$458United Airlines

Wed, Dec 2 - Sat, Dec 5

1:40 pm - 8:42 pmONT Ontario-CPR Casper Natrona County

6h 02m1 stop Denver Intl

7:00 am - 5:36 pmCPR Casper Natrona County-ONT Ontario

11h 36m2 stops Denver Intl San Francisco

$464United Airlines

Wed, Dec 2 - Sat, Dec 5

1:40 pm - 8:42 pmONT Ontario-CPR Casper Natrona County

6h 02m1 stop Denver Intl

5:00 am - 1:39 pmCPR Casper Natrona County-ONT Ontario

9h 39m2 stops Denver Intl San Francisco

$464United Airlines

Wed, Dec 2 - Sat, Dec 5

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

11h 59m2 stops San Francisco Denver Intl

7:00 am - 1:39 pmCPR Casper Natrona County-ONT Ontario

7h 39m2 stops Denver Intl San Francisco

$469United Airlines

Sun, Nov 22 - Tue, Nov 24

5:00 am - 10:49 amONT Ontario-CPR Casper Natrona County

4h 49m1 stop Denver Intl

5:15 am - 12:29 pmCPR Casper Natrona County-ONT Ontario

8h 14m2 stops Denver Intl San Francisco

$503United Airlines

Wed, Dec 2 - Sat, Dec 5

11:20 am - 8:42 pmONT Ontario-CPR Casper Natrona County

8h 22m2 stops San Francisco Denver Intl

5:00 am - 5:36 pmCPR Casper Natrona County-ONT Ontario

13h 36m2 stops Denver Intl San Francisco

$504United Airlines

Booking Insights

Price, demand and travel trends for Ontario to Casper 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 Ontario to Casper? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Casper departing in november.

Find deals

Cheapest flight	$343

One-way 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.

What cabin classes can I book on flights from Ontario to Casper?
Only Economy Class is available on flights from Ontario to Casper.
Do I need a passport to fly from Ontario to Casper?
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.
How much should I expect to pay for a Ontario to Casper flight?
Round-trip flights from Ontario to Casper range from $328 to $486, with an average of $373 over the past 12 months. Anything below $328 counts as a good deal.
Have flight prices from Ontario to Casper 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 $426 to $1,688. That means the highest observed fare was about 4x higher than the lowest one.
How are flight prices from Ontario to Casper looking right now?
One-way fares from Ontario to Casper are currently higher than usual. Average one-way flight prices are about $360, which is 48% above the typical average for this route.
What car rental options are available at Casper Natrona County Airport (CPR)?
Casper Natrona County Airport (CPR) hosts 5 major car rental companies, with daily rates averaging $80 for economy cars. Top options include:

• Budget
• Avis
• Hertz
• Enterprise Rent-A-Car
• Alamo
Which airports can I use when flying from Ontario to Casper?
Flights from Ontario to Casper usually depart from Ontario (ONT) and arrive at Casper Natrona County (CPR).
Which airports do connecting flights from Ontario to Casper pass through?
Most connecting flights from Ontario to Casper 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 Ontario to Casper?
Yes. Flexible dates can save you up to 68% on flights from Ontario to Casper. Friday is the cheapest departure day at $308 round-trip on average, while Sunday is the most expensive at $941, a difference of $633.

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

If your dates are flexible, aim for a Friday departure and avoid flying on Sunday. On this route, Friday flights average $308, about $633 less than Sunday fares (67% savings) based on the last 12 months.
If you can choose when to travel, plan your Ontario to Casper trip for August. Fares historically average $309 round-trip in that month - typically $229 less than the most expensive month, which is March (based on the last 12 months).

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ONT - CPR

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Everything you should know

Cheap Flights from Ontario to Casper (ONT-CPR)

Recent round-trip flight deals from Ontario to Casper

Recent one-way flight deals from Ontario to Casper

Price, demand and travel trends for Ontario to Casper flights

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

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

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

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

Key details for Ontario to Casper flights

Cheapest flight

When to book flights from Ontario to Casper

Your Ontario to Casper flight questions, answered

Your guide to booking Ontario to Casper flights

More options for your flight from Ontario to Casper

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

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Casper

Find direct flights to and from Ontario and Casper

Flights from domestic origins to Casper

Flights to other popular destinations

Find deals for your return flight