How long is the flight from Washington, D.C. to Carlsbad?

For as low as $361, Frontier can have you in Carlsbad from Washington, D.C. in 5h 20m. There are 2322 mi between Washington, D.C. and Carlsbad. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines to fly from Washington, D.C. to Carlsbad one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $72. Users have also found prices from $119 and $123 on JetBlue and Southwest, respectively.

In terms of precipitation, rainfall in Carlsbad ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit Carlsbad when rainfall is around 0.0 in.

If weather is an important factor for your trip to Carlsbad, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

What are the most popular routes from Washington, D.C. to Carlsbad?

When deciding which route to take from Washington, D.C. to Carlsbad consider Washington, D.C. Reagan-National - Los Angeles, Baltimore/Washington - Los Angeles or Washington, D.C. Dulles Intl - Los Angeles as they are the most popular.

What are the cheapest flights from Washington, D.C. to Carlsbad?

The cheapest flight price from Washington, D.C. to Carlsbad is $138. On average you can expect to pay $1,324. The most popular route, (Washington, D.C. Reagan-National - Los Angeles), can usually be booked for $180.

What are the most reliable airlines from Washington, D.C. to Carlsbad?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. to Carlsbad on time: Cathay Pacific (94%), Ethiopian Air (89%), Egyptair (85%).

What are the most popular airlines that fly from Washington, D.C. to Carlsbad?

When booking a flight from Washington, D.C. to Carlsbad, you may want to consider flying on United Airlines, American Airlines or Alaska Airlines as they are the most popular for this route.

Can I find deals for flights from Washington, D.C. to Carlsbad that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Carlsbad flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Carlsbad?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Carlsbad.

Can I find deals for business class flights from Washington, D.C. to Carlsbad?

Yes. Cheapflights offers flight deals from Washington, D.C. to Carlsbad by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$136+ Cheap Flights from Washington, D.C. to Carlsbad, CA

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Washington, D.C. to Carlsbad with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. to Carlsbad are usually found in September or October, booked 71 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Washington, D.C. to Carlsbad

Cheapest

Best

Last-minute

One-way

Cheapest flights from Washington, D.C. to Carlsbad
Explore the most affordable flight options available from Washington, D.C. to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 9, 2026.

Thu 9/106:00 pm -

1 stop9h 10m

Sat 9/199:45 pm -

1 stop9h 16m

Deal found 8/7

$262

Sat 9/58:59 am -

1 stop16h 40m

Sat 9/129:40 pm -

1 stop9h 47m

Deal found 8/7

$262

Wed 9/29:30 am -

Nonstop5h 29m

Wed 9/92:01 pm -

1 stop19h 10m

Deal found 8/5

$263

Thu 10/228:00 pm -

1 stop25h 48m

Mon 10/263:15 pm -

1 stop12h 05m

Deal found 8/7

$263

Mon 8/319:30 am -

Nonstop5h 29m

Sat 9/59:09 pm -

1 stop12h 42m

Deal found 8/9

$264

Thu 8/276:20 am -

1 stop13h 34m

Wed 9/26:55 am -

2 stops20h 05m

Deal found 8/5

$264

Sat 8/299:30 am -

Nonstop5h 29m

Fri 9/49:09 pm -

1 stop16h 50m

Deal found 8/8

$265

Tue 9/156:13 pm -

2 stops20h 34m

Sun 9/2712:59 am -

1 stop7h 34m

Deal found 8/7

$265

Sat 9/59:30 am -

Nonstop5h 29m

Tue 9/89:40 am -

1 stop23h 31m

Deal found 8/5

$266

Wed 8/1911:05 am -

1 stop10h 07m

Thu 9/1012:38 pm -

1 stop8h 32m

Deal found 8/5

$266

Wed 9/97:00 am -

1 stop10h 14m

Fri 9/1110:04 pm -

2 stops15h 55m

Deal found 8/9

$267

Sat 8/298:39 pm -

2 stops48h 33m

Fri 9/411:34 pm -

1 stop14h 40m

Deal found 8/8

$267

Best flights from Washington, D.C. to Carlsbad
Discover carefully curated flight deals from Washington, D.C. to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 9, 2026.

Sat 9/1910:40 am -

2 stops10h 10m

Mon 9/285:10 am -

1 stop10h 00m

Deal found 8/8

$282

Wed 12/95:30 pm -

Nonstop5h 24m

Sun 12/138:40 am -

Nonstop4h 33m

Deal found 8/4

$290

Wed 1/66:59 pm -

1 stop15h 33m

Sat 1/911:48 am -

Nonstop5h 12m

Deal found 8/4

$307

Mon 10/56:59 pm -

1 stop7h 53m

Sat 10/177:35 am -

Nonstop4h 54m

Deal found 8/9

$387

Tue 11/36:10 am -

2 stops9h 35m

Tue 11/1010:10 am -

2 stops8h 45m

Deal found 8/9

$287

Wed 10/710:13 pm -

Nonstop5h 32m

Sun 10/1111:30 pm -

Nonstop4h 51m

Deal found 8/4

$290

Fri 10/98:05 pm -

1 stop7h 05m

Sat 10/1012:40 am -

1 stop8h 40m

Deal found 8/7

$317

Thu 10/812:58 pm -

Nonstop5h 21m

Tue 10/1311:30 pm -

Nonstop4h 51m

Deal found 8/4

$332

Thu 10/227:02 am -

1 stop10h 32m

Tue 10/2711:34 am -

1 stop9h 25m

Deal found 8/5

$381

Fri 11/69:00 am -

2 stops11h 55m

Tue 11/109:25 am -

2 stops9h 30m

Deal found 8/8

$347

Sun 10/47:00 am -

Nonstop5h 33m

Thu 10/159:30 pm -

Nonstop5h 01m

Deal found 8/9

$367

Wed 9/29:05 am -

Nonstop5h 20m

Wed 9/910:55 am -

Nonstop5h 00m

Deal found 8/4

$361

Mon 11/26:39 am -

Nonstop5h 52m

Tue 11/1011:17 pm -

Nonstop4h 55m

Deal found 8/8

$367

Thu 11/1911:40 am -

1 stop7h 50m

Mon 11/2311:55 pm -

2 stops9h 40m

Deal found 8/8

$362

Mon 9/141:00 pm -

Nonstop5h 23m

Sat 9/199:39 pm -

Nonstop5h 01m

Deal found 8/8

$367

Tue 10/66:15 am -

1 stop7h 05m

Wed 10/142:10 pm -

Nonstop4h 50m

Deal found 8/5

$367

Fri 9/188:20 pm -

Nonstop5h 32m

Sat 9/269:10 pm -

Nonstop5h 01m

Deal found 8/9

$367

Sat 10/3112:43 pm -

Nonstop5h 49m

Mon 11/29:42 pm -

Nonstop4h 44m

Deal found 8/7

$367

Sat 10/246:25 am -

1 stop8h 40m

Sat 11/79:55 pm -

Nonstop4h 45m

Deal found 8/4

$371

Wed 9/309:28 am -

Nonstop5h 32m

Tue 10/611:30 pm -

Nonstop4h 51m

Deal found 8/7

$367

Sun 10/116:10 am -

1 stop7h 25m

Mon 10/1212:40 am -

2 stops10h 25m

Deal found 8/5

$382

Thu 10/2910:10 pm -

Nonstop5h 49m

Tue 11/310:42 pm -

Nonstop4h 47m

Deal found 8/7

$367

Fri 8/286:35 am -

Nonstop5h 25m

Sun 9/66:55 am -

Nonstop5h 00m

Deal found 8/7

$387

Sun 9/207:00 am -

Nonstop5h 34m

Tue 10/209:30 pm -

Nonstop5h 01m

Deal found 8/5

$367

Tue 9/81:00 pm -

2 stops9h 15m

Tue 9/157:30 am -

2 stops10h 25m

Deal found 8/9

$387

Fri 8/214:55 pm -

2 stops8h 25m

Mon 8/315:10 am -

1 stop10h 00m

Deal found 8/5

$402

Sat 8/229:25 am -

2 stops11h 20m

Sat 8/2910:30 am -

1 stop6h 35m

Deal found 8/7

$402

Wed 9/167:00 am -

Nonstop5h 35m

Mon 9/218:30 am -

Nonstop5h 05m

Deal found 8/6

$471

Thu 9/38:15 pm -

Nonstop5h 30m

Thu 9/105:05 am -

Nonstop5h 00m

Deal found 8/6

$409

Thu 10/18:00 am -

Nonstop5h 36m

Sat 10/1012:45 pm -

1 stop7h 14m

Deal found 8/6

$481

Last-minute flights from Washington, D.C. to Carlsbad
Discover last-minute flight deals from Washington, D.C. to Carlsbad. Data last updated August 9, 2026 and is based on user searches.

Wed 8/1911:05 am -

1 stop10h 07m

Thu 9/1012:38 pm -

1 stop8h 32m

Deal found 8/5

$266

Wed 8/261:59 pm -

1 stop13h 12m

Fri 8/286:30 am -

1 stop12h 29m

Deal found 8/6

$268

Thu 8/276:20 am -

1 stop13h 34m

Wed 9/26:55 am -

2 stops20h 05m

Deal found 8/5

$264

Sat 8/299:30 am -

Nonstop5h 29m

Fri 9/49:09 pm -

1 stop16h 50m

Deal found 8/8

$265

Sat 8/298:39 pm -

2 stops48h 33m

Fri 9/411:34 pm -

1 stop14h 40m

Deal found 8/8

$267

Mon 8/319:30 am -

Nonstop5h 29m

Sat 9/59:09 pm -

1 stop12h 42m

Deal found 8/9

$264

Wed 9/29:30 am -

Nonstop5h 29m

Wed 9/92:01 pm -

1 stop19h 10m

Deal found 8/5

$263

Sat 9/58:59 am -

1 stop16h 40m

Sat 9/129:40 pm -

1 stop9h 47m

Deal found 8/7

$262

Sat 9/59:30 am -

Nonstop5h 29m

Tue 9/89:40 am -

1 stop23h 31m

Deal found 8/5

$266

Wed 9/97:00 am -

1 stop10h 14m

Fri 9/1110:04 pm -

2 stops15h 55m

Deal found 8/9

$267

Thu 9/106:00 pm -

1 stop9h 10m

Sat 9/199:45 pm -

1 stop9h 16m

Deal found 8/7

$262

Tue 9/156:13 pm -

2 stops20h 34m

Sun 9/2712:59 am -

1 stop7h 34m

Deal found 8/7

$265

One-way flights from Washington, D.C. to Carlsbad
Search for one-way flight options from Washington, D.C. to Carlsbad. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.

Mon 10/199:52 pm -

1 stop23h 56m

Deal found 8/9

$136

Sun 9/65:08 pm -

1 stop9h 56m

Deal found 8/8

$137

Fri 9/1112:45 pm -

2 stops32h 25m

Deal found 8/9

$142

Tue 10/137:00 am -

2 stops14h 48m

Deal found 8/9

$147

Tue 9/2910:22 am -

2 stops16h 48m

Deal found 8/8

$149

Tue 9/88:45 am -

2 stops32h 29m

Deal found 8/7

$151

Thu 9/33:49 pm -

1 stop11h 10m

Deal found 8/7

$152

Fri 10/21:06 pm -

2 stops36h 58m

Deal found 8/6

$152

Thu 9/106:00 am -

2 stops14h 45m

Deal found 8/7

$152

Sun 11/154:10 pm -

1 stop10h 47m

Deal found 8/6

$153

Tue 10/209:16 pm -

2 stops19h 43m

Deal found 8/8

$153

Mon 9/78:59 am -

1 stop27h 30m

Deal found 8/8

$154

Find flight deals from Washington, D.C. to Carlsbad

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$262 (CheapOair)
One-way from	$136 (Kiwi.com)
Popular in	June
Cheapest in	September
Average price	$394

Provider with most accurate pricing for Washington, D.C. (WAS)-Los Angeles flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Los Angeles flights.

Search Deals

From Washington, D.C. (WAS) to Carlsbad

Search Deals

One-way flight from Washington, D.C. (WAS) to Carlsbad

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($53 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Carlsbad that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Los Angeles

DCA Washington, D.C. Reagan-National - LAX Los Angeles

DCALAX

Washington, D.C. Reagan-National

Sat 9/19

10:40 am-5:50 pm

2 stops10h 10m

Los Angeles

Mon 9/28

5:10 am-6:10 pm

1 stop10h 00m

$282

Washington, D.C.Los Angeles

DCA Washington, D.C. Reagan-National - LAX Los Angeles

DCALAX

Washington, D.C. Reagan-National

Tue 11/3

6:10 am-12:45 pm

2 stops9h 35m

Los Angeles

Tue 11/10

10:10 am-9:55 pm

2 stops8h 45m

$287

Quickest round-trip

Washington, D.C.Los Angeles

IAD Washington, D.C. Dulles Intl - LAX Los Angeles

IADLAX

Washington, D.C. Dulles Intl

Wed 12/9

5:30 pm-7:54 pm

Nonstop5h 24m

Los Angeles

Sun 12/13

8:40 am-4:13 pm

Nonstop4h 33m

$290

Washington, D.C.Los Angeles

IAD Washington, D.C. Dulles Intl - LAX Los Angeles

IADLAX

Washington, D.C. Dulles Intl

Wed 10/7

10:13 pm-12:45 am

Nonstop5h 32m

Los Angeles

Sun 10/11

11:30 pm-7:21 am

Nonstop4h 51m

$290

Washington, D.C.Los Angeles

DCA Washington, D.C. Reagan-National - LAX Los Angeles

DCALAX

Washington, D.C. Reagan-National

Wed 1/6

6:59 pm-7:32 am

1 stop15h 33m

Los Angeles

Sat 1/9

11:48 am-8:00 pm

Nonstop5h 12m

$307

Washington, D.C.Los Angeles

DCA Washington, D.C. Reagan-National - LAX Los Angeles

DCALAX

Washington, D.C. Reagan-National

Fri 10/9

8:05 pm-12:10 am

1 stop7h 05m

Los Angeles

Sat 10/10

12:40 am-12:20 pm

1 stop8h 40m

$317

Washington, D.C.Los Angeles

IAD Washington, D.C. Dulles Intl - LAX Los Angeles

IADLAX

Washington, D.C. Dulles Intl

Thu 10/8

12:58 pm-3:19 pm

Nonstop5h 21m

Los Angeles

Tue 10/13

11:30 pm-7:21 am

Nonstop4h 51m

$332

Washington, D.C.Los Angeles

DCA Washington, D.C. Reagan-National - LAX Los Angeles

DCALAX

Washington, D.C. Reagan-National

Fri 11/6

9:00 am-5:55 pm

2 stops11h 55m

Los Angeles

Tue 11/10

9:25 am-9:55 pm

2 stops9h 30m

$347

BaltimoreLos Angeles

BWI Baltimore/Washington - LAX Los Angeles

BWILAX

Baltimore/Washington

Wed 9/2

9:05 am-11:25 am

Nonstop5h 20m

Los Angeles

Wed 9/9

10:55 am-6:55 pm

Nonstop5h 00m

$361

Washington, D.C.Los Angeles

DCA Washington, D.C. Reagan-National - LAX Los Angeles

DCALAX

Washington, D.C. Reagan-National

Thu 11/19

11:40 am-4:30 pm

1 stop7h 50m

Los Angeles

Mon 11/23

11:55 pm-12:35 pm

2 stops9h 40m

$362

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/7

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Washington, D.C. to Carlsbad

Have a flexible travel schedule? Discover the best time to fly to Carlsbad from Washington, D.C. with our price prediction graph.

DCA-LAX

IAD-LAX

BWI-LAX

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Carlsbad

WAS-C4D

DCA-LAX

IAD-LAX

BWI-LAX

What is the cheapest time of day to fly from WAS to C4D?

It’s typically best to fly out from Washington, D.C. to Carlsbad in the evening. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.

Weekly flight availability from Washington, D.C. to Carlsbad

The most flights from WAS to C4D are scheduled on a Saturday (43 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (13 on average).

How much does it cost to fly round-trip from Washington, D.C. to Carlsbad?

Airfare is below average for this route at the moment.

Washington, D.C. to Carlsbad flights typically cost between $280 and $525 in September.
The cheapest round-trip price found within the last 5 days was $262 on Multiple Airlines (Sep 10-Sep 19).

What is the cheapest day to fly from Washington, D.C. to Carlsbad?

Travelers seeking maximum savings on their Washington, D.C. to Carlsbad flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Carlsbad

Read reviews from past customers who have flown Southwest,Alaska Airlines, andUnited Airlines from Washington, D.C. to Carlsbad. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,216 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Southwest

8.0

Very good

4,216 reviews

Southwest

8.0

Very good

4,216 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Alaska Airlines

7.9

Good

12,788 reviews

Southwest

8.0

Very good

4,216 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

United Airlines

7.4

Good

10,089 reviews

Southwest

8.0

Very good

4,216 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

American Airlines

7.1

Good

11,892 reviews

Southwest

8.0

Very good

4,216 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Frontier

5.6

Fair

2,717 reviews

Southwest

8.0

Very good

4,216 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Related info for your journey

How long is the flight from Washington, D.C. to Carlsbad?
For as low as $361, Frontier can have you in Carlsbad from Washington, D.C. in 5h 20m. There are 2322 mi between Washington, D.C. and Carlsbad. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines to fly from Washington, D.C. to Carlsbad one-way?
For one-way options, check prices for Frontier. According to our data, you can fly for as low as $72. Users have also found prices from $119 and $123 on JetBlue and Southwest, respectively.
What are the most popular routes from Washington, D.C. to Carlsbad?
When deciding which route to take from Washington, D.C. to Carlsbad consider Washington, D.C. Reagan-National - Los Angeles, Baltimore/Washington - Los Angeles or Washington, D.C. Dulles Intl - Los Angeles as they are the most popular.
What are the most reliable airlines from Washington, D.C. to Carlsbad?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. to Carlsbad on time: Cathay Pacific (94%), Ethiopian Air (89%), Egyptair (85%).
What are the cheapest flights from Washington, D.C. to Carlsbad?
The cheapest flight price from Washington, D.C. to Carlsbad is $138. On average you can expect to pay $1,324. The most popular route, (Washington, D.C. Reagan-National - Los Angeles), can usually be booked for $180.
Can I find deals for flights from Washington, D.C. to Carlsbad that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Carlsbad flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Carlsbad?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Carlsbad.
Can I find deals for business class flights from Washington, D.C. to Carlsbad?
Yes. Cheapflights offers flight deals from Washington, D.C. to Carlsbad by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Flights by cabin class

Other flight options

Other flights from Washington, D.C.

Popular flights

Alternative routes for Washington, D.C. to Carlsbad

Dulles Intl to Las Vegas flights

Reagan-National to Los Angeles flights

Reagan-National to Las Vegas flights

Dulles Intl to Los Angeles flights

Dulles Intl to San Francisco flights

Reagan-National to San Francisco flights

Dulles Intl to San Diego flights

Reagan-National to San Diego flights

Dulles Intl to Ontario flights

Reagan-National to Ontario flights

Dulles Intl to Sacramento flights

Dulles Intl to San Jose flights

Dulles Intl to Oakland flights

Reagan-National to San Jose flights

Dulles Intl to Palm Springs flights

Reagan-National to Sacramento flights

Dulles Intl to Reno flights

Reagan-National to Oakland flights

Reagan-National to Santa Ana flights

Reagan-National to Reno flights

Reagan-National to Palm Springs flights

Dulles Intl to Fresno flights

Dulles Intl to Burbank flights

Dulles Intl to Long Beach flights

Dulles Intl to Santa Barbara flights

Reagan-National to Fresno flights

Reagan-National to Santa Barbara flights

Reagan-National to Burbank flights

Dulles Intl to Medford flights

Reagan-National to Monterey flights

Reagan-National to San Luis Obispo flights

Dulles Intl to Arcata flights

Dulles Intl to Santa Rosa flights

Reagan-National to Medford flights

Reagan-National to Bakersfield flights

Dulles Intl to Yuma flights

Reagan-National to Yuma flights

Dulles Intl to Mammoth Lakes flights

Dulles Intl to Merced flights

Reagan-National to Mammoth Lakes flights

Top 8 airlines flying from Washington, D.C. to Carlsbad

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$129	Average$288	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$131	Average$460	FlexibilityNo cancel fee	On-timeN/A
Hawaiian Airlines	Cheapest$138	Average$381	FlexibilityNo cancel fee	On-time85%
Southwest	Cheapest$180	Average$437	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$186	Average$480	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$186	Average$442	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$190	Average$460	FlexibilityNo cancel fee	On-time69%
JetBlue	Cheapest$192	Average$397	FlexibilityNo cancel fee	On-time62%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$136+ Cheap flights from Washington, D.C. (WAS) to Carlsbad, CA, CA

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Carlsbad with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington, D.C. to Carlsbad

Cheapest flights from Washington, D.C. to CarlsbadExplore the most affordable flight options available from Washington, D.C. to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 9, 2026.

Explore the most affordable flight options available from Washington, D.C. to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 9, 2026.

Best flights from Washington, D.C. to CarlsbadDiscover carefully curated flight deals from Washington, D.C. to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 9, 2026.

Discover carefully curated flight deals from Washington, D.C. to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 9, 2026.

Last-minute flights from Washington, D.C. to CarlsbadDiscover last-minute flight deals from Washington, D.C. to Carlsbad. Data last updated August 9, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Carlsbad. Data last updated August 9, 2026 and is based on user searches.

One-way flights from Washington, D.C. to CarlsbadSearch for one-way flight options from Washington, D.C. to Carlsbad. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.

Search for one-way flight options from Washington, D.C. to Carlsbad. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.

Find flight deals from Washington, D.C. to Carlsbad

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Carlsbad that are best for you.

Best time to book a flight from Washington, D.C. to Carlsbad

Have a flexible travel schedule? Discover the best time to fly to Carlsbad from Washington, D.C. with our price prediction graph.

Cheapflights Insights

What is the cheapest time of day to fly from WAS to C4D?

Find hourly flight availability from Washington, D.C. to Carlsbad. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 9, 2026.

It’s typically best to fly out from Washington, D.C. to Carlsbad in the evening. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.

Weekly flight availability from Washington, D.C. to Carlsbad

The most flights from WAS to C4D are scheduled on a Saturday (43 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (13 on average).

How much does it cost to fly round-trip from Washington, D.C. to Carlsbad?

Airfare is below average for this route at the moment.

Washington, D.C. to Carlsbad flights typically cost between $280 and $525 in September.The cheapest round-trip price found within the last 5 days was $262 on Multiple Airlines (Sep 10-Sep 19).

What is the cheapest day to fly from Washington, D.C. to Carlsbad?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Carlsbad. Price data was last updated on August 8, 2026.

Travelers seeking maximum savings on their Washington, D.C. to Carlsbad flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Carlsbad

Read reviews from past customers who have flown Southwest,Alaska Airlines, andUnited Airlines from Washington, D.C. to Carlsbad. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Washington, D.C. to Carlsbad?

What are the cheapest airlines to fly from Washington, D.C. to Carlsbad one-way?

What are the most popular routes from Washington, D.C. to Carlsbad?

What are the most reliable airlines from Washington, D.C. to Carlsbad?

What are the cheapest flights from Washington, D.C. to Carlsbad?

Can I find deals for flights from Washington, D.C. to Carlsbad that include hotel bookings?

How can I find direct flights from Washington, D.C. to Carlsbad?

Can I find deals for business class flights from Washington, D.C. to Carlsbad?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Carlsbad

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Carlsbad by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Washington, D.C. to Carlsbad by cabin class

Find flights from Washington, D.C. to Carlsbad, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Washington, D.C. and Carlsbad flights

Browse other Washington, D.C. and Carlsbad flight options. Last updated on August 9, 2026.

Other flights from Washington, D.C.

Browse through other flights departing from Washington, D.C.. Flights are based on user searches made on Cheapflights and were last updated on August 9, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top 8 airlines flying from Washington, D.C. to Carlsbad

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Washington, D.C. to Carlsbad
Explore the most affordable flight options available from Washington, D.C. to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 9, 2026.

Best flights from Washington, D.C. to Carlsbad
Discover carefully curated flight deals from Washington, D.C. to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 9, 2026.

Last-minute flights from Washington, D.C. to Carlsbad
Discover last-minute flight deals from Washington, D.C. to Carlsbad. Data last updated August 9, 2026 and is based on user searches.

One-way flights from Washington, D.C. to Carlsbad
Search for one-way flight options from Washington, D.C. to Carlsbad. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.

Washington, D.C. to Carlsbad flights typically cost between $280 and $525 in September.
The cheapest round-trip price found within the last 5 days was $262 on Multiple Airlines (Sep 10-Sep 19).