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Cheap flights from Casper to Washington, D.C. from $338

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 4/9. 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

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:21 pm - 11:24 pm
CPR
-
BWI
8h 03m
1 stop
United Airlines Logo
4:18 pm - 10:07 pm
BWI
-
CPR
7h 49m
1 stop
$338United Airlines
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
1:21 pm - 11:24 pm
CPR
-
BWI
8h 03m
1 stop
United Airlines Logo
3:42 pm - 10:07 pm
BWI
-
CPR
8h 25m
2 stops
$344United Airlines
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
3:14 pm - 11:34 pm
CPR
-
IAD
6h 20m
1 stop
United Airlines Logo
9:55 am - 2:39 pm
IAD
-
CPR
6h 44m
1 stop
$384United Airlines
Fri, Apr 24 - Thu, May 7
United Airlines Logo
11:26 am - 9:16 pm
CPR
-
IAD
7h 50m
1 stop
United Airlines Logo
2:21 pm - 6:59 pm
IAD
-
CPR
6h 38m
1 stop
$388United Airlines
Sat, Mar 28 - Wed, Apr 1
United Airlines Logo
3:14 pm - 11:24 pm
CPR
-
BWI
6h 10m
1 stop
United Airlines Logo
8:22 am - 2:39 pm
BWI
-
CPR
8h 17m
1 stop
$394United Airlines
Fri, Apr 24 - Thu, May 7
United Airlines Logo
3:14 pm - 11:24 pm
CPR
-
BWI
6h 10m
1 stop
United Airlines Logo
6:15 am - 2:39 pm
BWI
-
CPR
10h 24m
2 stops
$404United Airlines
Fri, Apr 24 - Thu, May 7
United Airlines Logo
3:14 pm - 11:24 pm
CPR
-
BWI
6h 10m
1 stop
United Airlines Logo
6:15 am - 2:39 pm
BWI
-
CPR
10h 24m
2 stops
$414United Airlines
Fri, Apr 24 - Thu, May 7
United Airlines Logo
3:15 pm - 11:12 pm
CPR
-
BWI
5h 57m
1 stop
United Airlines Logo
11:08 am - 6:59 pm
BWI
-
CPR
9h 51m
2 stops
$418United Airlines
Sat, Mar 28 - Wed, Apr 1
United Airlines Logo
11:22 am - 11:24 pm
CPR
-
BWI
10h 02m
1 stop
United Airlines Logo
4:18 pm - 8:26 pm
BWI
-
CPR
6h 08m
1 stop
$428United Airlines
Tue, Apr 14 - Sat, Apr 18
United Airlines Logo
9:05 am - 9:25 pm
CPR
-
IAD
10h 20m
1 stop
United Airlines Logo
2:21 pm - 8:26 pm
IAD
-
CPR
8h 05m
1 stop
$428United Airlines
Tue, Apr 14 - Sat, Apr 18

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

Our best United Airlines deals on Casper to Washington, D.C. flight tickets
United Airlines
Apr 9
CPR1:21 pmCasper Natrona County
8h 03m
1 stop
BWI11:24 pmBaltimore/Washington
Apr 13
BWI4:18 pmBaltimore/Washington
7h 49m
1 stop
CPR10:07 pmCasper Natrona County
$338
United Airlines
Apr 9
CPR1:21 pmCasper Natrona County
8h 03m
1 stop
BWI11:24 pmBaltimore/Washington
Apr 13
BWI3:42 pmBaltimore/Washington
8h 25m
2 stops
CPR10:07 pmCasper Natrona County
$344
United Airlines
Apr 24
CPR3:14 pmCasper Natrona County
6h 20m
1 stop
IAD11:34 pmWashington, D.C. Dulles Intl
May 7
IAD9:55 amWashington, D.C. Dulles Intl
6h 44m
1 stop
CPR2:39 pmCasper Natrona County
$384

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 March 15, 2026.
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

Cheapest round-trip

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Thu 4/9

1:21 pm-11:24 pm

1 stop8h 03m

Baltimore/Washington

Mon 4/13

4:18 pm-10:07 pm

1 stop7h 49m

$338

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Thu 4/9

1:21 pm-11:24 pm

1 stop8h 03m

Baltimore/Washington

Mon 4/13

3:42 pm-10:07 pm

2 stops8h 25m

$344
Quickest round-trip

CasperWashington, D.C.

CPR - IAD

CPRIAD

Casper Natrona County

Fri 4/24

3:14 pm-11:34 pm

1 stop6h 20m

Washington, D.C. Dulles Intl

Thu 5/7

9:55 am-2:39 pm

1 stop6h 44m

$384

CasperWashington, D.C.

CPR - IAD

CPRIAD

Casper Natrona County

Sat 3/28

11:26 am-9:16 pm

1 stop7h 50m

Washington, D.C. Dulles Intl

Wed 4/1

2:21 pm-6:59 pm

1 stop6h 38m

$388

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Fri 4/24

3:14 pm-11:24 pm

1 stop6h 10m

Baltimore/Washington

Thu 5/7

8:22 am-2:39 pm

1 stop8h 17m

$394

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Fri 4/24

3:14 pm-11:24 pm

1 stop6h 10m

Baltimore/Washington

Thu 5/7

6:15 am-2:39 pm

2 stops10h 24m

$404

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Fri 4/24

3:14 pm-11:24 pm

1 stop6h 10m

Baltimore/Washington

Thu 5/7

6:15 am-2:39 pm

2 stops10h 24m

$414

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Sat 3/28

3:15 pm-11:12 pm

1 stop5h 57m

Baltimore/Washington

Wed 4/1

11:08 am-6:59 pm

2 stops9h 51m

$418

CasperBaltimore

CPR - BWI

CPRBWI

Casper Natrona County

Tue 4/14

11:22 am-11:24 pm

1 stop10h 02m

Baltimore/Washington

Sat 4/18

4:18 pm-8:26 pm

1 stop6h 08m

$428

CasperWashington, D.C.

CPR - IAD

CPRIAD

Casper Natrona County

Tue 4/14

9:05 am-9:25 pm

1 stop10h 20m

Washington, D.C. Dulles Intl

Sat 4/18

2:21 pm-8:26 pm

1 stop8h 05m

$428

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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

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.

Fastest flight time

5h 57m

Direct flights

None
The fastest flight from Casper to Washington, D.C. takes 5h 57m
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 57m, 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 $278Free CancellationRating
7.4
9,427 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
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Colonial Beach
Laurel
Towson
Gaithersburg
Silver Spring
Fredericksburg
Rockville
Tysons
Manassas
Springfield
Bethesda
Fairfax
Linthicum Heights
College Park

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