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Cheap flights from Casper to Washington, D.C. 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 Casper to Washington, D.C. departing on 12/13. 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 Casper to Washington, D.C. (CPR-WAS)

Cheap round-trip flights

United Airlines Logo
3:17 pm - 11:00 pmCPR-BWI
5h 43m1 stop
United Airlines Logo
4:15 pm - 10:15 pmBWI-CPR
8h 00m1 stop
$368United Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 16
United Airlines Logo
6:01 pm - 5:08 amCPR-IAD
9h 07m1 stop
United Airlines Logo
5:15 pm - 10:12 pmIAD-CPR
6h 57m1 stop
$368United Airlines
Find Deal
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
5:30 am - 2:51 pmCPR-DCA
7h 21m1 stop
United Airlines Logo
4:05 pm - 8:33 pmDCA-CPR
6h 28m1 stop
$368United Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 16
United Airlines Logo
3:17 pm - 11:00 pmCPR-BWI
5h 43m1 stop
United Airlines Logo
10:20 am - 10:15 pmBWI-CPR
13h 55m2 stops
$374United Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 16
United Airlines Logo
5:30 am - 2:51 pmCPR-DCA
7h 21m1 stop
United Airlines Logo
6:30 am - 4:51 pmDCA-CPR
12h 21m2 stops
$437United Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 16
United Airlines Logo
5:30 am - 9:19 pmCPR-BWI
13h 49m2 stops
United Airlines Logo
1:10 pm - 8:33 pmBWI-CPR
9h 23m2 stops
$444United Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 16
United Airlines Logo
1:30 pm - 11:00 pmCPR-BWI
7h 30m1 stop
United Airlines Logo
8:20 am - 4:51 pmBWI-CPR
10h 31m1 stop
$458United Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
United Airlines Logo
7:00 am - 9:10 pmCPR-IAD
12h 10m2 stops
United Airlines Logo
4:08 pm - 10:12 pmIAD-CPR
8h 04m1 stop
$458United Airlines
Find Deal
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
6:01 pm - 5:08 amCPR-IAD
9h 07m1 stop
United Airlines Logo
8:30 am - 10:12 pmIAD-CPR
15h 42m2 stops
$463United Airlines
Find Deal
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
1:30 pm - 8:29 amCPR-DCA
16h 59m2 stops
United Airlines Logo
4:05 pm - 10:15 pmDCA-CPR
8h 10m1 stop
$464United Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 16

United Airlines flights from Casper to Washington, D.C.

Our best United Airlines deals on Casper to Washington, D.C. flight tickets
United Airlines
Dec 13
CPR3:17 pmCasper Natrona County
5h 43m
1 stop
BWI11:00 pmBaltimore/Washington
Dec 16
BWI4:15 pmBaltimore/Washington
8h 00m
1 stop
CPR10:15 pmCasper Natrona County
$368
Find similar
United Airlines
Dec 13
CPR3:17 pmCasper Natrona County
5h 43m
1 stop
BWI11:00 pmBaltimore/Washington
Dec 16
BWI10:20 amBaltimore/Washington
13h 55m
2 stops
CPR10:15 pmCasper Natrona County
$374
Find similar
United Airlines
Dec 13
CPR5:30 amCasper Natrona County
7h 21m
1 stop
DCA2:51 pmWashington, D.C. Reagan-National
Dec 16
DCA6:30 amWashington, D.C. Reagan-National
12h 21m
2 stops
CPR4:51 pmCasper Natrona County
$437
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Casper to Washington, D.C. 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 September 9, 2025.
Use the filters below to find and compare flights from Casper to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Sat 12/13

3:17 pm-11:00 pm

1 stop5h 43m

Baltimore/Washington

Tue 12/16

4:15 pm-10:15 pm

1 stop8h 00m

$368

CasperWashington, D.C.

CPR - IAD

CPRIAD

Casper Natrona County

Sat 2/21

6:01 pm-5:08 am

1 stop9h 07m

Washington, D.C. Dulles Intl

Tue 2/24

5:15 pm-10:12 pm

1 stop6h 57m

$368

CasperWashington, D.C.

CPR - DCA

CPRDCA

Casper Natrona County

Sat 12/13

5:30 am-2:51 pm

1 stop7h 21m

Washington, D.C. Reagan-National

Tue 12/16

4:05 pm-8:33 pm

1 stop6h 28m

$368

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Sat 12/13

3:17 pm-11:00 pm

1 stop5h 43m

Baltimore/Washington

Tue 12/16

10:20 am-10:15 pm

2 stops13h 55m

$374

CasperWashington, D.C.

CPR - DCA

CPRDCA

Casper Natrona County

Sat 12/13

5:30 am-2:51 pm

1 stop7h 21m

Washington, D.C. Reagan-National

Tue 12/16

6:30 am-4:51 pm

2 stops12h 21m

$437

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Sat 12/13

5:30 am-9:19 pm

2 stops13h 49m

Baltimore/Washington

Tue 12/16

1:10 pm-8:33 pm

2 stops9h 23m

$444

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Wed 12/3

1:30 pm-11:00 pm

1 stop7h 30m

Baltimore/Washington

Sun 12/7

8:20 am-4:51 pm

1 stop10h 31m

$458

CasperWashington, D.C.

CPR - IAD

CPRIAD

Casper Natrona County

Sat 2/21

7:00 am-9:10 pm

2 stops12h 10m

Washington, D.C. Dulles Intl

Tue 2/24

4:08 pm-10:12 pm

1 stop8h 04m

$458

CasperWashington, D.C.

CPR - IAD

CPRIAD

Casper Natrona County

Sat 2/21

6:01 pm-5:08 am

1 stop9h 07m

Washington, D.C. Dulles Intl

Tue 2/24

8:30 am-10:12 pm

2 stops15h 42m

$463

CasperWashington, D.C.

CPR - DCA

CPRDCA

Casper Natrona County

Sat 12/13

1:30 pm-8:29 am

2 stops16h 59m

Washington, D.C. Reagan-National

Tue 12/16

4:05 pm-10:15 pm

1 stop8h 10m

$464

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

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

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 Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Casper is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $533. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Casper to Washington, D.C. for around $932.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

At noon is the cheapest time of day to fly from Casper to Washington, D.C. when you can find flight prices for as low as $460. Flying to Washington, D.C. at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $528. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Casper to Washington, D.C. flights?

You could potentially save up to 59% on your flight if you consider stops on a Casper to Washington, D.C. flight.

When to book flights from Casper to Washington, D.C.

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

Cheap Casper to Washington, D.C. (CPR to WAS) flight deals and tips

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

Direct flights

None
There are no direct flights from Casper to Washington, D.C.. There are no popular flight routes from Casper to Washington, D.C..
Search flight deals

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

    The straight-line distance from Casper Natrona County to Washington, D.C. is 1545.1 mi. Flights usually cover this in 5h 43m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Casper Natrona County Airport to Washington, D.C. refresh daily.

  • How many operators does momondo search for flights from Casper Natrona County Airport to Washington, D.C.?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Casper Natrona County Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Casper to Washington, D.C.

Compare and see reviews for airlines that fly from Casper to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $368Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
Glen Burnie
Springfield
Linthicum Heights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Casper to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Casper to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Casper to Washington, D.C..

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

Of course. momondo tracks the price of Casper to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport