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$298+ Cheap flights from Dulles Intl (IAD) to Casper (CPR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CPR
Feb 6 — Feb 131
Fri 2/6
Fri 2/13
1 adult, Economy
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Cheap flight deals from Dulles Intl to Casper

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Casper (CPR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 7, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$298
(United Airlines)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Casper Natrona County flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Casper Natrona County flights.
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From Washington, D.C. Dulles Intl to Casper Natrona County
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Find flight deals from Dulles Intl to Casper

Cheapest flights from Dulles Intl to Casper
Explore the most affordable flight options available from Dulles Intl to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 7, 2026.

This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/174:00 pmIAD - CPR
1 stop7h 59mUnited Airlines
Wed 3/255:25 amCPR - IAD
1 stop5h 40mUnited Airlines
Deal found 1/7$298
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/62:24 pmIAD - CPR
1 stop6h 42mUnited Airlines
Fri 2/131:20 pmCPR - IAD
1 stop7h 59mUnited Airlines
Deal found 1/7$345
This United Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2110:02 amIAD - CPR
1 stop6h 40mUnited Airlines
Sun 1/251:16 pmCPR - IAD
1 stop8h 06mUnited Airlines
Deal found 1/6$348
This United Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/78:15 amIAD - CPR
1 stop6h 20mUnited Airlines
Tue 2/101:16 pmCPR - IAD
1 stop8h 06mUnited Airlines
Deal found 1/6$388
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:30 pmIAD - CPR
1 stop6h 26mUnited Airlines
Sun 5/176:01 pmCPR - IAD
1 stop9h 07mUnited Airlines
Deal found 1/7$458
This United Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:00 pmIAD - CPR
1 stop7h 59mUnited Airlines
Sun 3/2211:26 amCPR - IAD
2 stops21h 50mUnited Airlines
Deal found 1/7$513
This United Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/102:24 pmIAD - CPR
1 stop8h 16mUnited Airlines
Thu 1/1511:28 amCPR - IAD
1 stop5h 53mUnited Airlines
Deal found 1/6$563

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Casper that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 7, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Casper that are best for you.

Fly from

Dulles Intl

Fly to

Casper

Route

Depart

Return

Price

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Tue 3/17

2:12 pm-7:15 pm

1 stop7h 03m

Casper Natrona County

Wed 3/25

9:00 am-6:47 pm

1 stop7h 47m

$298

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Fri 2/6

2:24 pm-7:06 pm

1 stop6h 42m

Casper Natrona County

Fri 2/13

1:20 pm-11:19 pm

1 stop7h 59m

$345

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Wed 1/21

10:02 am-2:42 pm

1 stop6h 40m

Casper Natrona County

Sun 1/25

1:16 pm-11:22 pm

1 stop8h 06m

$348

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Sat 2/7

2:24 pm-8:40 pm

1 stop8h 16m

Casper Natrona County

Tue 2/10

11:28 am-9:07 pm

1 stop7h 39m

$388

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Tue 3/10

2:12 pm-9:59 pm

1 stop9h 47m

Casper Natrona County

Mon 3/23

5:55 pm-5:17 am

1 stop9h 22m

$388

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Wed 3/11

8:30 am-7:15 pm

2 stops12h 45m

Casper Natrona County

Tue 3/24

3:15 pm-11:20 pm

1 stop6h 05m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Compare providers for flights from Dulles Intl to Casper

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Casper in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Casper flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Casper flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Casper flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Casper flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Casper flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Casper

Have a flexible travel schedule? Discover the best time to fly to Casper from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Casper. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Casper from Washington, D.C. Dulles Intl?

    If you book a flight to Casper from Washington, D.C. Dulles Intl, you will be flying to Natrona County, which is the city’s only airport. Casper Natrona County (CPR) is located 8.1 mi from the center of Casper. There are 0 flights from Washington, D.C. Dulles Intl to Natrona County per day from 0 different airlines.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Casper?

    Airlines like United Airlines fly from Washington, D.C. Dulles Intl Airport to Casper in about 7h 03m. The time it takes to get you to your destination can typically vary by up to . The distance from Washington, D.C. Dulles Intl Airport to Casper is about 1530 mi.

  • Can I find deals for flights from Dulles Intl to Casper that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Casper flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Casper?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Casper.

  • Can I find deals for business class flights from Dulles Intl to Casper?

    Yes. Cheapflights offers flight deals from Dulles Intl to Casper by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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