$589 Cheap Flights from Washington (IAD) to Carlsbad (CNM)

View $589 flight on Fri, Oct 10, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Carlsbad, NM (CNM-Cavern City Air Terminal)

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Cheap Flights from Washington to Carlsbad (IAD-CNM)

Prices were available within the past 7 days and start at $589 for one-way flights and $1,171 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, Oct 10 - Tue, Oct 14
IAD
Washington
CNM
Carlsbad
$1,171 Roundtrip, found 6 days ago
$1,171
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Oct 10 from Washington to Carlsbad, returning Tue, Oct 14, priced at $1,171 found 6 days ago
Alaska Airlines
Sun, Nov 16 - Wed, Nov 19
IAD
Washington
CNM
Carlsbad
$1,175 Roundtrip, found 16 hours ago
$1,175
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sun, Nov 16 from Washington to Carlsbad, returning Wed, Nov 19, priced at $1,175 found 16 hours ago
Alaska Airlines
Mon, Oct 13 - Fri, Oct 17
IAD
Washington
CNM
Carlsbad
$1,261 Roundtrip, found 3 days ago
$1,261
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Oct 13 from Washington to Carlsbad, returning Fri, Oct 17, priced at $1,261 found 3 days ago
Alaska Airlines
Mon, Oct 13 - Fri, Oct 17
IAD
Washington
CNM
Carlsbad
$1,307 Roundtrip, found 3 days ago
$1,307
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Oct 13 from Washington to Carlsbad, returning Fri, Oct 17, priced at $1,307 found 3 days ago
Alaska Airlines
Mon, Oct 13 - Fri, Oct 17
IAD
Washington
CNM
Carlsbad
$1,313 Roundtrip, found 3 days ago
$1,313
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Oct 13 from Washington to Carlsbad, returning Fri, Oct 17, priced at $1,313 found 3 days ago

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Cavern City Air Terminal Airport (CNM) cost?
Lock in a cheap one-way flight from $589 or cheap return flight from $1,171 from Washington Dulles Intl. Airport (IAD) to Cavern City Air Terminal Airport (CNM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Cavern City Air Terminal Airport (CNM)?
The cheapest month to fly from IAD to CNM is October, when demand is low. Off-peak months are usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Cavern City Air Terminal Airport (CNM)?
To find the cheapest airline that'll fly you from IAD to CNM, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Cavern City Air Terminal Airport (CNM)?
There are no daily nonstop flights available from Washington Dulles Intl. Airport (IAD) to Cavern City Air Terminal Airport (CNM). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from IAD to CNM?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a range of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Cavern City Air Terminal Airport (CNM)?
To avoid possible delays on the Washington Dulles Intl. Airport (IAD) to Cavern City Air Terminal Airport (CNM) route, fly before 3 PM. Later flights have a 22% higher chance of being canceled.**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 Washington Dulles Intl. Airport (IAD) to Cavern City Air Terminal Airport (CNM) last-minute?
Booking your flight from IAD to CNM right before your getaway is generally more expensive. But if there's some wiggle room with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book an IAD to CNM flight and hotel package?
Opting for an IAD to CNM flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our extensive range of stays and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Cavern City Air Terminal Airport (CNM)?
In most instances, you're able to reschedule or cancel your IAD to CNM flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like more information, head to our Customer Service portal.

Travel information

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Cavern City Air Terminal
Roundtrip price
$1,170
Distance
1565 mi

Book with confidence

Book with confidence

Washington to Carlsbad Flights

The cheapest times to fly from Washington to Carlsbad

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 Washington to Carlsbad are during the month of October. You can find some of the cheapest flights from Washington to Carlsbad with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Carlsbad

Sunday is one of the best days to book for cheap flights from Washington to Carlsbad: 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 Washington to Carlsbad

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 Washington to Carlsbad in 2025. You can also book with separate airlines for your outbound and return journeys, from $589 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 Washington to Carlsbad 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 Washington to Carlsbad 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.

 

Washington to Carlsbad Flights

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*Available to One Key members.