Flight tickets from Denver to Casper

Compare Denver to Casper flight deals

Find the cheapest month or even day of the year to fly to Casper

Book the best Casper fare with no extra fees

Find the cheapest month to fly from Denver to Casper

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver to Casper flights are currently cheapest in May.

Direct flights from Denver to Casper

Denver to Casper: Alternative routes

Compare routes from Denver to Casper below. You may find an airport to fly into that's cheaper, faster, or easier than Casper.

Denver to Casper: Flight information

The things to know before you go.
Cheapest flight found₹ 17,974
Cheapest month to flyMay
Average flight time1 hr, 14 mins
Most popular airlineUnited
Average flights per week119

Finding cheap flights from Denver to Casper: Frequently asked questions

The best price we found for a return flight from Denver to Casper is ₹ 16,641. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 14 minutes is the average flight time from Denver to Casper.
United, SkyWest Airlines and Copa fly direct from Denver to Casper.
As of February 2026, there are 117 flights per week flying from Denver to Casper.
The cheapest month to fly from Denver to Casper is usually March.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Denver to Casper Airport on Thursday, 12 March 2026.
Yes – the average flight time is 1 hour and 14 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Casper but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Casper is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Casper is United .

Travelling from Denver to Casper/Natrona County International Airport (CPR): What you need to know

  • Your next big escape starts at Denver's main airport, Denver International Airport (DEN). Explore your options for reserving a flight from Denver to Casper/Natrona County International Airport (CPR) leaving from this base.

  • The average length of a direct Denver to Casper/Natrona County International Airport flight is 1 hour 10 minutes.

  • Casper/Natrona County International Airport is located in Casper. The city's timezone is UTC-6 — the same as Denver.

  • The busiest route is from Denver International Airport (DEN) to Casper/Natrona County International Airport (CPR), with 45 direct services every week. If you're eager to be on your way, the earliest flight from DEN to CPR is the 8:30am United Airlines service. If you prefer travelling later, the final departure is at 9pm with United Airlines.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Get to the airport on time to catch your flight from Denver to CPR.

  • Delays at security and check-in are likely if you're travelling during high season, so give yourself a bit more breathing room. The recommendation for peak times? Arrive up to four hours early for international flights and two hours for domestic departures.

Airports in Denver

Denver International Airport (DEN)

  • You can find a direct flight from Denver to Casper/Natrona County International Airport (CPR) departing from Denver International Airport (DEN).

  • You can get away on a direct flight from Denver to Casper/Natrona County International Airport with United Airlines. This popular carrier operates departures from DEN.

  • The majority of passengers prefer to book seats with United Airlines from DEN to CPR.

  • United Airlines takes the top spot for on-time performance. An exceptional 84.68% of its services on this route arrive as scheduled.

  • DEN is about 40 kilometres from central Denver. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 35 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the trip time to be around 1 hour 30 minutes.

  • Get your flight from Denver to Casper/Natrona County International Airport off to an easy start. Only a quick drive from Denver International Airport, stay at Baymont by Wyndham Denver International Airport and you'll be well-rested for the trip ahead.

  • 80.23% of flights leaving Denver International Airport reach their destination as planned. Given its reliable on-time performance, you're unlikely to experience delays when taking off from DEN.

  • The address for DEN is 8500 Pena Boulevard.

About Casper/Natrona County International Airport (CPR)

  • You'll find CPR at 8500 Airport Parkway.

How to find the cheapest flights from Denver to Casper/Natrona County International Airport (CPR)

  • At the moment, ₹ 17,974 is the best price we've found for a one-way ticket from Denver to Casper/Natrona County International Airport. The cheapest price for a return flight is ₹ 16,641. Remember fares can change due to demand at the time of booking.

  • To pick up cheap flights from Denver to CPR, book in advance. Airlines usually offer lower fares when tickets first go on sale.

  • The 'Whole month' tool shows you the cheapest Denver to Casper/Natrona County International Airport tickets across each month. It's a great way to snap up a bargain if your travel dates aren't set in stone.

  • Locking in a cheap flight ticket from Denver to CPR is easy with Price Alerts. Simply create one of these automatic alerts and we'll notify you when a lower fare pops up.

  • Bag the best deal on a flight from Denver to Casper/Natrona County International Airport with the help of the filters. Pick your ideal departure and arrival times, airlines and number of stops. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest.'

The best time to fly from Denver to Casper/Natrona County International Airport (CPR)

  • It's time to work out when to book your flight from Denver to Casper/Natrona County International Airport (CPR). July is when most people travel to Casper. If you prefer a quieter vibe, think about going in November.

  • When booking your Denver to CPR flight ticket, consider the kind of weather you prefer. July is the warmest month in Casper, with temperatures ranging from 13ºC to 33ºC.

  • If you want to travel in cooler conditions, search for a cheap ticket from Denver to Casper/Natrona County International Airport in January when temperatures are between -14ºC and 0ºC.

More about Casper

Explore more of the United States

  • Fort Collins is just one of the many cities in the United States waiting to be discovered once you've seen Casper. Around 290 kilometres away to the south-east, check out popular attractions including Arapaho National Forest, Odell Brewing Company and Windtracker Balloon Adventures.

  • Around 306 kilometres south-east of Casper, Loveland is another favourite stop in the United States. Experience the best of this destination with a visit to Jurassic Quest Loveland, Devil's Backbone Nature Trail and Sunset Vista Natural Area.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.