$489 Cheap Flights from Washington (DCA) to Casper (CPR)

View $489 flight on Thu, May 21, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Casper, WY (CPR-Natrona County Intl.)

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Cheap Flights from Washington to Casper (DCA-CPR)

Prices were available within the past 7 days and start at $489 for one-way flights and $573 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Apr 17 - Mon, Apr 20
DCA
Washington
CPR
Casper
$573 Roundtrip, found 5 days ago
$573
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 17 from Washington to Casper, returning Mon, Apr 20, priced at $573 found 5 days ago
United
Fri, Apr 17 - Mon, Apr 20
DCA
Washington
CPR
Casper
$577 Roundtrip, found 5 days ago
$577
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 17 from Washington to Casper, returning Mon, Apr 20, priced at $577 found 5 days ago
United
Fri, Apr 17 - Mon, Apr 20
DCA
Washington
CPR
Casper
$588 Roundtrip, found 5 days ago
$588
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 17 from Washington to Casper, returning Mon, Apr 20, priced at $588 found 5 days ago
United
Fri, Apr 17 - Mon, Apr 20
DCA
Washington
CPR
Casper
$633 Roundtrip, found 5 days ago
$633
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 17 from Washington to Casper, returning Mon, Apr 20, priced at $633 found 5 days ago
United
Wed, May 6 - Sun, May 10
DCA
Washington
CPR
Casper
$649 Roundtrip, found 1 day ago
$649
Roundtrip
found 1 day ago
Select United flight, departing Wed, May 6 from Washington to Casper, returning Sun, May 10, priced at $649 found 1 day ago
United
Thu, Apr 16 - Sun, Apr 19
DCA
Washington
CPR
Casper
$658 Roundtrip, found 5 days ago
$658
Roundtrip
found 5 days ago
Select United flight, departing Thu, Apr 16 from Washington to Casper, returning Sun, Apr 19, priced at $658 found 5 days ago
United
Fri, Apr 17 - Mon, Apr 20
DCA
Washington
CPR
Casper
$664 Roundtrip, found 5 days ago
$664
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 17 from Washington to Casper, returning Mon, Apr 20, priced at $664 found 5 days ago
United
Fri, Apr 17 - Mon, Apr 20
DCA
Washington
CPR
Casper
$673 Roundtrip, found 5 days ago
$673
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 17 from Washington to Casper, returning Mon, Apr 20, priced at $673 found 5 days ago
United
Fri, Apr 17 - Mon, Apr 20
DCA
Washington
CPR
Casper
$682 Roundtrip, found 5 days ago
$682
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 17 from Washington to Casper, returning Mon, Apr 20, priced at $682 found 5 days ago
United
Fri, Apr 17 - Mon, Apr 20
DCA
Washington
CPR
Casper
$688 Roundtrip, found 5 days ago
$688
Roundtrip
found 5 days ago
Select United flight, departing Fri, Apr 17 from Washington to Casper, returning Mon, Apr 20, priced at $688 found 5 days ago

Frequently asked questions

How much does a flight from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.) cost?
You can find cheap one-way flights from $489 and cheap return flights from $573 Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.) with Expedia. One-way flights typically cost between $419 and $674. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
The cheapest month to fly from DCA to CPR is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
Enter DCA to CPR and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
United, Delta and Alaska Airlines are just some of the carriers that fly from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
To find a cheap flight from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
The earliest flight from Ronald Reagan Washington National Airport (DCA) to Natrona County International Airport (CPR) typically departs at around 6:00 AM. This seasonal service is available in July, allowing you to start your day early in Casper. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
You'll usually find the most flights from Ronald Reagan Washington National (DCA) to Natrona County Intl. (CPR) on a Wednesday, with around 10 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United and Delta.
What are the most popular departure times for flights from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
The most popular departure times for flights from Washington, DC (DCA) to Casper (CPR) are in the early morning, from 6am to 9am. About 37% of passengers prefer this time window. Many major carriers, including United Airlines and Delta Air Lines, offer flights during this window. This timing is favored because it allows you to make the most of your day upon arrival.
How long does it take to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
Flying from DCA to CPR with a connection usually takes about 6 hours, traveling roughly 1,554 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
Select the "Business class" and "First class" filters when looking for DCA to CPR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.) flight with Expedia?
It's easy to earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Casper from Ronald Reagan Washington National (DCA)?
From Ronald Reagan Washington National (DCA), you can fly into Natrona County Intl. (CPR) to reach Casper. Some flights may connect through major hubs like Minneapolis - St. Paul Intl. (MSP), O'Hare Intl. (ORD), George Bush Intercontinental (IAH) before reaching Casper. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.) at the last minute?
Typically, booking a last minute flight from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.) flight and hotel package?
Securing a Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.)?
If you booked your Washington, DC (DCA-Ronald Reagan Washington National) to Casper, WY (CPR-Natrona County Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Natrona County Intl.
Airlines serving
United
Roundtrip price
$572
Distance
1554 mi

Book with confidence

Washington to Casper Flights

The cheapest times to fly from Washington to Casper

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Casper are during the month of April. You can find some of the cheapest flights from Washington to Casper with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Casper

Sunday is one of the best days to book for cheap flights from Washington to Casper: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Casper

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Casper in 2026. You can also book with separate airlines for your outbound and return journeys, from $489 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Casper flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Casper airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Casper Flights

How to find the latest flight deals from Washington (DCA) to Casper (CPR)?

Last updated:

This page highlights the latest flight deals from Washington to Casper (DCA to CPR), including one-way and roundtrip options from multiple airlines. The deals featured here are updated regularly, so you’ll always find the most up-to-date prices and best available flights for your trip from Washington to Casper.

*Flight schedules are subject to change.

*Available to One Key members.

 

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