HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Carlsbad

$133+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAX
kwi 26 — maj 31
ndz. 4/26
ndz. 5/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 July, booked 87 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

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

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 Marzec 27, 2026.

This Booking.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pon. 4/2011:22 am
BWI
-
LAX
1 stop27h 02m
Frontier
ndz. 4/261:52 pm
LAX
-
BWI
1 stop7h 52m
Frontier
Deal found 3/26$222
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
czw. 5/76:22 pm
BWI
-
LAX
2 stops17h 41m
Frontier
ndz. 5/1012:31 am
LAX
-
BWI
1 stop7h 06m
Frontier
Deal found 3/26$223
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pt. 4/249:46 pm
BWI
-
LAX
2 stops29h 07m
Multiple Airlines
sob. 5/21:52 pm
LAX
-
BWI
1 stop7h 52m
Multiple Airlines
Deal found 3/27$224
This Expedia deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pon. 4/66:38 pm
BWI
-
LAX
1 stop8h 51m
Frontier
sob. 4/1812:39 pm
LAX
-
BWI
1 stop19h 33m
Frontier
Deal found 3/27$225
This Expedia deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pt. 4/36:39 pm
BWI
-
LAX
1 stop8h 50m
Frontier
śr. 4/810:51 pm
LAX
-
BWI
1 stop11h 45m
Frontier
Deal found 3/22$226
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pon. 6/225:19 pm
BWI
-
LAX
1 stop17h 47m
Frontier
sob. 7/49:41 am
LAX
-
BWI
1 stop7h 56m
Frontier
Deal found 3/26$227
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
śr. 5/66:22 pm
BWI
-
LAX
2 stops17h 41m
Frontier
śr. 5/209:45 am
LAX
-
BWI
1 stop7h 38m
Frontier
Deal found 3/27$228
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pt. 4/249:04 pm
BWI
-
LAX
1 stop17h 20m
Frontier
wt. 4/285:11 pm
LAX
-
BWI
2 stops15h 11m
Frontier
Deal found 3/26$229
This Frontier deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ndz. 6/146:35 am
BWI
-
LAX
1 stop13h 30m
Frontier
sob. 6/209:41 am
LAX
-
BWI
1 stop7h 56m
Frontier
Deal found 3/25$230
This CheapOair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
czw. 6/253:09 pm
BWI
-
LAX
1 stop30h 18m
Frontier
sob. 7/49:41 am
LAX
-
BWI
1 stop7h 56m
Frontier
Deal found 3/25$231
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
śr. 5/138:52 am
BWI
-
LAX
1 stop8h 23m
Frontier
czw. 5/1412:31 am
LAX
-
BWI
1 stop7h 06m
Frontier
Deal found 3/24$232
This Booking.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pon. 4/66:38 pm
BWI
-
LAX
1 stop8h 51m
Frontier
wt. 4/711:50 am
LAX
-
BWI
1 stop30h 15m
Frontier
Deal found 3/25$233

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

Keep the following information in mind while searching for Washington, D.C. to Carlsbad flight deals. Data was last updated Marzec 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$222
(Booking.com)

One-way from

$133
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$477
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. 8% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Carlsbad 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, Cheapflights users made 2,558,603 searches. Data last updated Marzec 27, 2026.
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 - LAX

DCALAX

Washington, D.C. Reagan-National

czw. 4/16

3:00 pm-10:05 pm

1 stop10h 05m

Los Angeles

śr. 4/22

5:15 am-6:40 pm

2 stops10h 25m

$269

Washington, D.C.Los Angeles

DCA - LAX

DCALAX

Washington, D.C. Reagan-National

pt. 5/1

5:00 pm-11:30 pm

2 stops9h 30m

Los Angeles

pon. 5/4

11:55 pm-11:05 am

1 stop8h 10m

$276
Quickest round-trip

Washington, D.C.Los Angeles

IAD - LAX

IADLAX

Washington, D.C. Dulles Intl

wt. 6/9

7:00 am-9:26 am

Nonstop5h 26m

Los Angeles

czw. 7/9

6:00 am-2:08 pm

Nonstop5h 08m

$285

BaltimoreLos Angeles

BWI - LAX

BWILAX

Baltimore/Washington

wt. 4/21

6:20 pm-11:20 pm

1 stop8h 00m

Los Angeles

wt. 4/28

11:45 am-7:40 pm

Nonstop4h 55m

$285

Washington, D.C.Los Angeles

DCA - LAX

DCALAX

Washington, D.C. Reagan-National

pt. 4/17

3:35 pm-11:45 pm

2 stops11h 10m

Los Angeles

pt. 4/24

11:30 pm-9:45 am

1 stop7h 15m

$296

Washington, D.C.Los Angeles

IAD - LAX

IADLAX

Washington, D.C. Dulles Intl

pt. 8/28

8:30 pm-11:01 pm

Nonstop5h 31m

Los Angeles

śr. 9/23

8:15 am-4:20 pm

Nonstop5h 05m

$297

BaltimoreLos Angeles

BWI - LAX

BWILAX

Baltimore/Washington

pon. 4/20

5:50 pm-11:44 pm

1 stop8h 54m

Los Angeles

śr. 4/22

10:15 am-6:22 pm

Nonstop5h 07m

$310

Washington, D.C.Los Angeles

DCA - LAX

DCALAX

Washington, D.C. Reagan-National

sob. 5/16

8:00 am-7:30 pm

2 stops14h 30m

Los Angeles

wt. 5/19

5:15 am-6:40 pm

2 stops10h 25m

$320

Washington, D.C.Los Angeles

DCA - LAX

DCALAX

Washington, D.C. Reagan-National

pon. 8/3

6:10 pm-12:05 am

1 stop8h 55m

Los Angeles

pt. 8/7

10:10 am-10:45 pm

2 stops9h 35m

$322

Washington, D.C.Los Angeles

IAD - LAX

IADLAX

Washington, D.C. Dulles Intl

śr. 4/15

6:20 am-1:20 pm

2 stops10h 00m

Los Angeles

pt. 4/17

11:10 am-12:20 am

2 stops10h 10m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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.
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

How far ahead should I book a flight from Washington, D.C. to Carlsbad?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Carlsbad. Price data was last updated on March 13, 2026.

The price you pay for your flight from Washington, D.C. to Carlsbad may vary depending on when you book. For the best chance of a lower fare, look to book 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. to Carlsbad?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Carlsbad (average of $77). Flying from Washington, D.C. to Carlsbad in March is currently the most expensive (average of $188). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 Marzec 27, 2026.

It’s typically best to fly out from Washington, D.C. to Carlsbad in the evening. Doing so could potentially save you 29% on the flight price compared to flying at noon, which is usually more expensive.

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 March 23, 2026.

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

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

Explore weekly flight availability from Washington, D.C. to Carlsbad. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated Marzec 27, 2026.

The most flights from WAS to C4D are scheduled on a Thursday (50 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (12 on average).

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

Reviews of airlines servicing Carlsbad

Get insights into the airlines that provide service to Carlsbad. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Carlsbad. Reviews last updated Marzec 27, 2026.
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
4,331 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,331 reviews
Southwest
8.0
Very good
4,331 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Alaska Airlines
7.9
Good
12,120 reviews
Southwest
8.0
Very good
4,331 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,494 reviews
Southwest
8.0
Very good
4,331 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,504 reviews
Southwest
8.0
Very good
4,331 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Spirit Airlines
6.3
Okay
8,550 reviews
Southwest
8.0
Very good
4,331 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Carlsbad. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as $285, Southwest can have you in Carlsbad from Washington, D.C. in 5h 26m. There are 2282 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 Spirit Airlines. According to our data, you can fly for as low as $72. Users have also found prices from $79 and $99 on Frontier 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. Dulles Intl - Los Angeles, Washington, D.C. Reagan-National - Los Angeles or Baltimore/Washington - 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: ITA Airways (100%), Virgin Australia (83%), United Airlines (82%).

  • 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 $1,024. The most popular route, (Washington, D.C. Dulles Intl - Los Angeles), can usually be booked for $210.

  • 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.

  • What is the cheapest month to book a flight from Washington, D.C. to Carlsbad?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Carlsbad (average of $77). Flying from Washington, D.C. to Carlsbad in March is currently the most expensive (average of $188). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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.

Top 9 airlines flying from Washington, D.C. to Carlsbad

Discover the top 9 airlines that operate flights from Washington, D.C. to Carlsbad. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Marzec 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$67Average$222FlexibilityNo cancel feeOn-time65%
FrontierCheapest$99Average$272FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$113Average$340FlexibilityNo cancel feeOn-time85%
JetBlueCheapest$127Average$395FlexibilityNo cancel feeOn-time62%
DeltaCheapest$143Average$417FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$154Average$366FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$170Average$422FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$170Average$433FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$186Average$440FlexibilityNo cancel feeOn-time71%

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.