$4,821 Cheap Flights from Carlsbad (CNM) to Washington (DCA)

View $4,821 flight on Sat, Oct 4, 2025Opens in a new window

Popular airlines from Carlsbad, NM (CNM-Cavern City Air Terminal) to Ronald Reagan Washington National Airport (DCA)

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Cheap Flights from Carlsbad to Washington (CNM-DCA)

Prices were available within the past 7 days and start at $4,821 for one-way flights and $1,167 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Advanced Air
Mon, Aug 18 - Mon, Aug 25
CNM
Carlsbad
DCA
Washington
$1,167 Roundtrip, found 4 days ago
$1,167
Roundtrip
found 4 days ago
Select Advanced Air flight, departing Mon, Aug 18 from Carlsbad to Washington, returning Mon, Aug 25, priced at $1,167 found 4 days ago
Advanced Air
Sat, Aug 16 - Tue, Aug 19
CNM
Carlsbad
DCA
Washington
$1,196 Roundtrip, found 2 days ago
$1,196
Roundtrip
found 2 days ago
Select Advanced Air flight, departing Sat, Aug 16 from Carlsbad to Washington, returning Tue, Aug 19, priced at $1,196 found 2 days ago
Advanced Air
Fri, Aug 15 - Tue, Aug 19
CNM
Carlsbad
DCA
Washington
$1,209 Roundtrip, found 2 days ago
$1,209
Roundtrip
found 2 days ago
Select Advanced Air flight, departing Fri, Aug 15 from Carlsbad to Washington, returning Tue, Aug 19, priced at $1,209 found 2 days ago
Advanced Air
Fri, Aug 15 - Tue, Sep 2
CNM
Carlsbad
DCA
Washington
$1,302 Roundtrip, found 2 days ago
$1,302
Roundtrip
found 2 days ago
Select Advanced Air flight, departing Fri, Aug 15 from Carlsbad to Washington, returning Tue, Sep 2, priced at $1,302 found 2 days ago
Advanced Air
Mon, Aug 18 - Wed, Aug 27
CNM
Carlsbad
DCA
Washington
$1,331 Roundtrip, found 4 days ago
$1,331
Roundtrip
found 4 days ago
Select Advanced Air flight, departing Mon, Aug 18 from Carlsbad to Washington, returning Wed, Aug 27, priced at $1,331 found 4 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Cheapest option available. Average driving time to city center is 40 minutes. Flights from $1,227
BWI
Baltimore Washington Intl. Thurgood Marshall
Cheapest
Average driving time to city center40 min
Flights from $1,227
Select flight to Washington Dulles Intl. IAD. Average driving time to city center is 36 minutes. Flights from $1,237
IAD
Washington Dulles Intl.
Average driving time to city center36 min
Flights from $1,237
Flights from Carlsbad (CNM) to Washington (DCA)
Origin airport
Cavern City Air Terminal
Destination airport
Ronald Reagan Washington National
Roundtrip price
$1,167
Distance
1586 mi

Carlsbad to Washington Flights

The cheapest times to fly from Carlsbad to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Carlsbad to Washington are during the month of August. You can find some of the cheapest flights from Carlsbad to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Carlsbad to Washington

Sunday is one of the best days to book for cheap flights from Carlsbad to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Carlsbad to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Carlsbad to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $4,821 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Carlsbad to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Carlsbad to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Cavern City Air Terminal Airport (CNM) to Ronald Reagan Washington National Airport (DCA) cost?
Lock in a cheap one-way flight from $4,821 or cheap return flight from $1,167 from Cavern City Air Terminal Airport (CNM) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Cavern City Air Terminal Airport (CNM) to Ronald Reagan Washington National Airport (DCA)?
The cheapest month to fly from CNM to DCA is August, when there's less demand. Off-peak season is typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Cavern City Air Terminal Airport (CNM) to Ronald Reagan Washington National Airport (DCA)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll take you from CNM to DCA. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Cavern City Air Terminal Airport (CNM) to Ronald Reagan Washington National Airport (DCA)?
There are no daily nonstop flights departing from Cavern City Air Terminal Airport (CNM) to Ronald Reagan Washington National Airport (DCA). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from CNM to DCA?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cavern City Air Terminal Airport (CNM) to Ronald Reagan Washington National Airport (DCA)?
To avoid possible delays on the Cavern City Air Terminal Airport (CNM) to Ronald Reagan Washington National Airport (DCA) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cavern City Air Terminal Airport (CNM) to Ronald Reagan Washington National Airport (DCA) last-minute?
Booking your ticket from CNM to DCA shortly before your journey is usually more expensive. However, if there's some wiggle room with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a CNM to DCA flight and hotel package?
Compared with arranging hotels and flights separately, booking a CNM to DCA flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place will take the stress out of travel planning. Just secure your flights and choose from our wide range of hotels, then customize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Cavern City Air Terminal Airport (CNM) to Ronald Reagan Washington National Airport (DCA)?
It's usually possible to cancel or reschedule your CNM to DCA flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.