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Cheap flights from Washington, D.C. Dulles Intl Airport to Casper from $438

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 10/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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
12:40 pm - 8:22 pm
IAD
-
CPR
9h 42m
1 stop
United Airlines Logo
1:25 pm - 9:20 pm
CPR
-
IAD
5h 55m
1 stop
$438United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
10:00 am - 6:37 pm
IAD
-
CPR
10h 37m
1 stop
United Airlines Logo
7:00 am - 9:20 pm
CPR
-
IAD
12h 20m
2 stops
$507United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
3:56 pm - 8:26 pm
IAD
-
CPR
6h 30m
1 stop
United Airlines Logo
8:45 am - 5:58 pm
CPR
-
IAD
7h 13m
1 stop
$535United Airlines
Sat, Jul 11 - Sat, Jul 18
United Airlines Logo
2:35 pm - 7:10 pm
IAD
-
CPR
6h 35m
1 stop
United Airlines Logo
3:15 pm - 12:45 am
CPR
-
IAD
7h 30m
1 stop
$566United Airlines
Fri, Jul 10 - Fri, Jul 17
United Airlines Logo
5:41 pm - 9:59 pm
IAD
-
CPR
6h 18m
1 stop
United Airlines Logo
5:15 am - 1:26 pm
CPR
-
IAD
6h 11m
1 stop
$669United Airlines
Fri, Jul 10 - Tue, Jul 14
United Airlines Logo
5:41 pm - 9:59 pm
IAD
-
CPR
6h 18m
1 stop
United Airlines Logo
1:23 pm - 11:32 pm
CPR
-
IAD
8h 09m
1 stop
$692United Airlines
Thu, Jul 9 - Mon, Jul 13
United Airlines Logo
6:30 am - 10:46 am
IAD
-
CPR
6h 16m
1 stop
United Airlines Logo
3:15 pm - 12:45 am
CPR
-
IAD
7h 30m
1 stop
$740United Airlines
Wed, Jul 29 - Sun, Aug 2
United Airlines Logo
6:30 am - 10:46 am
IAD
-
CPR
6h 16m
1 stop
United Airlines Logo
7:05 am - 3:53 pm
CPR
-
IAD
6h 48m
1 stop
$778United Airlines
Wed, Jul 8 - Wed, Jul 15
United Airlines Logo
6:30 am - 10:46 am
IAD
-
CPR
6h 16m
1 stop
United Airlines Logo
11:21 am - 9:19 pm
CPR
-
IAD
7h 58m
2 stops
$947United Airlines
Fri, Jul 10 - Tue, Jul 14
United Airlines Logo
5:41 pm - 9:59 pm
IAD
-
CPR
6h 18m
1 stop
United Airlines Logo
3:15 pm - 12:45 am
CPR
-
IAD
7h 30m
1 stop
$951United Airlines
Tue, Jul 7 - Sun, Jul 12

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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
Oct 27
IAD12:40 pmWashington, D.C. Dulles Intl
9h 42m
1 stop
CPR8:22 pmCasper Natrona County
Oct 31
CPR1:25 pmCasper Natrona County
5h 55m
1 stop
IAD9:20 pmWashington, D.C. Dulles Intl
$438
United Airlines
Oct 27
IAD10:00 amWashington, D.C. Dulles Intl
10h 37m
1 stop
CPR6:37 pmCasper Natrona County
Oct 31
CPR7:00 amCasper Natrona County
12h 20m
2 stops
IAD9:20 pmWashington, D.C. Dulles Intl
$507
United Airlines
Jul 1
IAD6:30 amWashington, D.C. Dulles Intl
10h 10m
1 stop
CPR2:40 pmCasper Natrona County
Jul 23
CPR6:13 pmCasper Natrona County
9h 14m
1 stop
IAD5:27 amWashington, D.C. Dulles Intl
$518

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 June 25, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Tue 10/27

12:40 pm-8:22 pm

1 stop9h 42m

Casper Natrona County

Sat 10/31

1:25 pm-9:20 pm

1 stop5h 55m

$438

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Tue 10/27

10:00 am-6:37 pm

1 stop10h 37m

Casper Natrona County

Sat 10/31

7:00 am-9:20 pm

2 stops12h 20m

$507

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Sat 7/11

3:56 pm-8:26 pm

1 stop6h 30m

Casper Natrona County

Sat 7/18

8:45 am-5:58 pm

1 stop7h 13m

$535

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Fri 7/10

2:35 pm-7:10 pm

1 stop6h 35m

Casper Natrona County

Fri 7/17

3:15 pm-12:45 am

1 stop7h 30m

$566
Quickest round-trip

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Fri 7/10

5:41 pm-9:59 pm

1 stop6h 18m

Casper Natrona County

Tue 7/14

5:15 am-1:26 pm

1 stop6h 11m

$669

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Thu 7/9

5:41 pm-9:59 pm

1 stop6h 18m

Casper Natrona County

Mon 7/13

1:23 pm-11:32 pm

1 stop8h 09m

$692

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Wed 7/29

6:30 am-10:46 am

1 stop6h 16m

Casper Natrona County

Sun 8/2

3:15 pm-12:45 am

1 stop7h 30m

$740

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Wed 7/8

6:30 am-10:46 am

1 stop6h 16m

Casper Natrona County

Wed 7/15

7:05 am-3:53 pm

1 stop6h 48m

$778

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Fri 7/10

6:30 am-10:46 am

1 stop6h 16m

Casper Natrona County

Tue 7/14

11:21 am-9:19 pm

2 stops7h 58m

$947

Washington, D.C.Casper

IAD - CPR

IADCPR

Washington, D.C. Dulles Intl

Tue 7/7

5:41 pm-9:59 pm

1 stop6h 18m

Casper Natrona County

Sun 7/12

3:15 pm-12:45 am

1 stop7h 30m

$951

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 18m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Casper takes 6h 18m
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

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Casper

  • 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 18m 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.

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Casper

  • How do I get Price Alerts for flights from Washington, D.C. Dulles Intl Airport to Casper?

    Confirm your travel details to search for the latest offers for flights from Washington, D.C. Dulles Intl Airport to Casper. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Washington, D.C. Dulles Intl Airport to Casper with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near Casper?

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

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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