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Cheap flights from Washington, D.C. Dulles Intl Airport to Casper from $368

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Casper departing on 1/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Casper

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:35 pm - 8:40 pm
IAD
-
CPR
10h 05m1 stop
United Airlines Logo
1:16 pm - 9:07 pm
CPR
-
IAD
5h 51m1 stop
$368United Airlines
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
2:24 pm - 10:14 pm
IAD
-
CPR
9h 50m1 stop
United Airlines Logo
7:00 am - 3:12 pm
CPR
-
IAD
6h 12m1 stop
$388United Airlines
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
10:02 am - 7:06 pm
IAD
-
CPR
11h 04m1 stop
United Airlines Logo
11:28 am - 11:41 am
CPR
-
IAD
22h 13m2 stops
$427United Airlines
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
10:02 am - 4:54 pm
IAD
-
CPR
8h 52m1 stop
United Airlines Logo
11:28 am - 11:41 am
CPR
-
IAD
22h 13m2 stops
$447United Airlines
Sat, Jan 24 - Tue, Jan 27
United Airlines Logo
6:20 am - 2:40 pm
IAD
-
CPR
10h 20m1 stop
United Airlines Logo
7:00 am - 9:25 pm
CPR
-
IAD
12h 25m2 stops
$562United Airlines
Tue, Dec 23 - Thu, Dec 25
United Airlines Logo
6:20 am - 2:40 pm
IAD
-
CPR
10h 20m1 stop
United Airlines Logo
6:10 pm - 5:19 am
CPR
-
IAD
9h 09m1 stop
$748United Airlines
Sat, Dec 27 - Tue, Dec 30
United Airlines Logo
6:20 am - 2:40 pm
IAD
-
CPR
10h 20m1 stop
United Airlines Logo
6:10 pm - 11:55 am
CPR
-
IAD
15h 45m2 stops
$873United Airlines
Sat, Dec 27 - Tue, Dec 30
United Airlines Logo
6:20 am - 10:51 am
IAD
-
CPR
6h 31m1 stop
United Airlines Logo
9:05 am - 6:50 pm
CPR
-
IAD
7h 45m1 stop
$1,038United Airlines
Tue, Dec 23 - Thu, Dec 25

United Airlines flights from Washington, D.C. Dulles Intl Airport to Casper

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Casper flight tickets
United Airlines
Jan 24
IAD12:35 pmWashington, D.C. Dulles Intl
10h 05m
1 stop
CPR8:40 pmCasper Natrona County
Jan 27
CPR1:16 pmCasper Natrona County
5h 51m
1 stop
IAD9:07 pmWashington, D.C. Dulles Intl
$368
Find similar
United Airlines
Jan 24
IAD2:24 pmWashington, D.C. Dulles Intl
9h 50m
1 stop
CPR10:14 pmCasper Natrona County
Jan 27
CPR7:00 amCasper Natrona County
6h 12m
1 stop
IAD3:12 pmWashington, D.C. Dulles Intl
$388
Find similar
United Airlines
Jan 24
IAD10:02 amWashington, D.C. Dulles Intl
11h 04m
1 stop
CPR7:06 pmCasper Natrona County
Jan 27
CPR11:28 amCasper Natrona County
22h 13m
2 stops
IAD11:41 amWashington, D.C. Dulles Intl
$427
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated December 11, 2025.
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

Fly to

Route

Depart

Return

Price

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Sat 1/24

12:35 pm-8:40 pm

1 stop10h 05m

Casper Natrona County

Tue 1/27

1:16 pm-9:07 pm

1 stop5h 51m

$368

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Sat 1/24

2:24 pm-10:14 pm

1 stop9h 50m

Casper Natrona County

Tue 1/27

7:00 am-3:12 pm

1 stop6h 12m

$388

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Sat 1/24

10:02 am-7:06 pm

1 stop11h 04m

Casper Natrona County

Tue 1/27

11:28 am-11:41 am

2 stops22h 13m

$427

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Sat 1/24

10:02 am-4:54 pm

1 stop8h 52m

Casper Natrona County

Tue 1/27

11:28 am-11:41 am

2 stops22h 13m

$447

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Tue 12/23

6:20 am-2:40 pm

1 stop10h 20m

Casper Natrona County

Thu 12/25

7:00 am-9:25 pm

2 stops12h 25m

$562

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Sat 12/27

6:20 am-2:40 pm

1 stop10h 20m

Casper Natrona County

Tue 12/30

6:10 pm-5:19 am

1 stop9h 09m

$748

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Sat 12/27

6:20 am-2:40 pm

1 stop10h 20m

Casper Natrona County

Tue 12/30

6:10 pm-11:55 am

2 stops15h 45m

$873

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Tue 12/23

6:20 am-10:51 am

1 stop6h 31m

Casper Natrona County

Thu 12/25

9:05 am-6:50 pm

1 stop7h 45m

$1,038

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Casper from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Casper

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Casper?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Casper is on a Saturday when prices can be found for as low as $454. The most expensive day to fly to Casper is Sunday, with ticket prices averaging around $815.

What is the cheapest time of day to depart on your flight to Casper?

The cheapest time of day to fly to Casper is in the morning when flights can be purchased for as low as $589. Flights to Casper are more costly in the afternoon, with an average ticket price of $593. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Washington, D.C. Dulles Intl Airport to Casper

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Casper according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Casper (IAD to CPR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Casper

Fastest flight time

6h 31m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Casper takes 6h 31m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Casper. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Casper.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Casper Natrona County by plane?

    There are 1523.2 mi between Washington, D.C. Dulles Intl and Casper Natrona County. 6h 31m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Casper Natrona County Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Casper Natrona County Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Casper Natrona County Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Casper Natrona County Airport.

  • What documentation or ID do you need to fly to Casper Natrona County Airport?

    The necessary travel and health documents for your Casper Natrona County Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Casper?

Book flights to Casper if you plan to visit one of these locations
Rawlins
Evansville
Douglas

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Casper?

It is quick and easy to find Washington, D.C. to Casper flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Casper that suits you.

Can I find flights from Washington, D.C. to Casper with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Casper from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Casper?

Once all potential Washington, D.C. to Casper flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Casper right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Casper now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Casper and let you know when they change.

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