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Carlsbad

$77+ Cheap flights from Seattle (SEA) to Carlsbad, 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAX
Nov 1 — Nov 81
Sat 11/1
Sat 11/8
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Carlsbad are usually found in January or March, booked 30 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Seattle to Carlsbad

Keep the following information in mind while searching for Seattle to Carlsbad flight deals. Data was last updated October 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$129
(Kiwi.com)

One-way from

$77
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$197
Provider with most accurate pricing for Seattle/Tacoma Intl-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Los Angeles flights.
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From Seattle/Tacoma Intl to Carlsbad
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One-way flight from Seattle/Tacoma Intl to Carlsbad
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Seattle to Carlsbad

Cheapest flights from Seattle to Carlsbad
Explore the most affordable flight options available from Seattle to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/1. 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.
Fri 10/171:02 pmSEA - LAX
Nonstop2h 49mFrontier
Sat 11/154:41 pmLAX - SEA
Nonstop2h 56mFrontier
Deal found 10/1$129
This Kiwi.com deal was found by Cheapflights users on 9/30. 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.
Wed 10/221:02 pmSEA - LAX
Nonstop2h 49mFrontier
Mon 11/104:41 pmLAX - SEA
Nonstop2h 56mFrontier
Deal found 9/30$130
This Frontier deal was found by Cheapflights users on 10/1. 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.
Sat 11/110:08 amSEA - LAX
Nonstop2h 49mFrontier
Wed 11/57:48 pmLAX - SEA
1 stop12h 30mFrontier
Deal found 10/1$131
This CheapOair deal was found by Cheapflights users on 9/30. 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.
Fri 10/3110:08 amSEA - LAX
Nonstop2h 49mFrontier
Mon 11/36:44 amLAX - SEA
1 stop29h 23mFrontier
Deal found 9/30$132
This Kiwi.com deal was found by Cheapflights users on 10/1. 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.
Sat 10/181:02 pmSEA - LAX
Nonstop2h 49mFrontier
Wed 10/224:52 pmLAX - SEA
Nonstop2h 56mFrontier
Deal found 10/1$134
This Cheapflightsfares deal was found by Cheapflights users on 10/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/171:02 pmSEA - LAX
Nonstop2h 49mFrontier
Sat 10/184:52 pmLAX - SEA
Nonstop2h 56mFrontier
Deal found 10/1$135
This CheapOair deal was found by Cheapflights users on 10/1. 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.
Thu 12/1111:41 amSEA - LAX
Nonstop2h 48mFrontier
Mon 12/153:14 pmLAX - SEA
Nonstop3h 06mFrontier
Deal found 10/1$136
This Kiwi.com deal was found by Cheapflights users on 9/30. 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.
Thu 10/3010:08 amSEA - LAX
Nonstop2h 49mFrontier
Thu 10/308:40 pmLAX - SEA
1 stop21h 52mFrontier
Deal found 9/30$137
This Cheapflightsfares deal was found by Cheapflights users on 9/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:02 pmSEA - LAX
Nonstop2h 49mFrontier
Mon 10/274:52 pmLAX - SEA
Nonstop2h 56mFrontier
Deal found 9/30$138
This Kiwi.com deal was found by Cheapflights users on 10/1. 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.
Mon 10/134:11 pmSEA - LAX
1 stop24h 33mFrontier
Thu 11/134:41 pmLAX - SEA
Nonstop2h 56mFrontier
Deal found 10/1$139
This Priceline deal was found by Cheapflights users on 9/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/39:08 amSEA - LAX
Nonstop2h 49mFrontier
Fri 11/74:41 pmLAX - SEA
Nonstop2h 56mFrontier
Deal found 9/30$140

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 October 2, 2025.
Use the filters below to find and compare flights from Seattle to Carlsbad that are best for you.

Fly from

Seattle

Fly to

Carlsbad

Route

Depart

Return

Price

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 2/28

9:45 am-12:29 pm

Nonstop2h 44m

Los Angeles

Sat 2/28

2:59 pm-7:10 pm

1 stop4h 11m

$151

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 2/7

6:25 am-10:40 am

1 stop4h 15m

Los Angeles

Fri 2/20

1:45 pm-6:50 pm

1 stop5h 05m

$156

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 2/24

5:15 am-1:20 pm

2 stops8h 05m

Los Angeles

Wed 2/25

12:05 pm-6:35 pm

1 stop6h 30m

$164

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Mon 3/2

8:05 am-2:30 pm

1 stop6h 25m

Los Angeles

Mon 3/2

5:00 pm-7:55 pm

Nonstop2h 55m

$171

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 12/2

10:25 am-1:15 pm

Nonstop2h 50m

Los Angeles

Wed 12/10

7:40 am-10:45 am

Nonstop3h 05m

$177

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 11/15

12:40 pm-3:25 pm

Nonstop2h 45m

Los Angeles

Tue 11/18

5:59 pm-8:56 pm

Nonstop2h 57m

$177

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 10/25

7:40 pm-10:29 pm

Nonstop2h 49m

Los Angeles

Mon 10/27

9:20 pm-12:18 am

Nonstop2h 58m

$187

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 12/2

6:15 am-10:30 am

1 stop4h 15m

Los Angeles

Sat 12/6

5:30 am-11:20 am

1 stop5h 50m

$187

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Fri 10/31

10:20 am-1:15 pm

Nonstop2h 55m

Los Angeles

Tue 11/11

8:00 am-11:06 am

Nonstop3h 06m

$187

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 11/5

7:10 am-10:01 am

Nonstop2h 51m

Los Angeles

Sun 11/9

7:20 am-10:25 am

Nonstop3h 05m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/1

Showing 1-10 of 22 results
1
2
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Best time to book a flight from Seattle to Carlsbad

Have a flexible travel schedule? Discover the best time to fly to Carlsbad from Seattle 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 Seattle to Carlsbad

How far ahead should I book a flight from Seattle to Carlsbad?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Carlsbad. Price data was last updated on September 26, 2025.

Booking 30 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Carlsbad. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Carlsbad?

Currently, January is the cheapest month in which you can book a flight from Seattle to Carlsbad (average of $246). Flying from Seattle to Carlsbad in March is currently the most expensive (average of $324). 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 SEA to C4D?

Find hourly flight availability from Seattle 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 October 2, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Carlsbad as you normally would.

What is the cheapest day to fly from Seattle to Carlsbad?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Carlsbad. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Carlsbad flight should consider departing on Friday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Carlsbad

Explore weekly flight availability from Seattle 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 October 2, 2025.

The most flights from SEA to C4D are scheduled on a Thursday (123 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

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 October 2, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines from Seattle to Carlsbad by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,994 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
10,994 reviews
Alaska Airlines
8.0
Very good
10,994 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
8.0
Very good
7,962 reviews
Alaska Airlines
8.0
Very good
10,994 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
8,933 reviews
Alaska Airlines
8.0
Very good
10,994 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Spirit Airlines
6.3
Okay
8,070 reviews
Alaska Airlines
8.0
Very good
10,994 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Frontier
5.8
Fair
3,155 reviews
Alaska Airlines
8.0
Very good
10,994 reviews

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

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

  • What airport do you fly from for flights from Seattle to Carlsbad?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Carlsbad. 8 airlines have flights from Seattle/Tacoma Intl to Carlsbad on a regular basis. Booking flights from Seattle/Tacoma Intl to Carlsbad should not be difficult; the airport handles an average of 59 outbound flights to Carlsbad per day.

  • How popular is this Seattle to Carlsbad flight route?

    Flights from Seattle/Tacoma Intl to Carlsbad have been viewed 307 times in the past calendar month.

  • How long is the flight from Seattle to Carlsbad?

    There are many flights that can get you from Seattle to Carlsbad in 2h 44m. Fly via Alaska Airlines, Southwest, or Delta to get the fastest option. Seattle and Carlsbad are separated by a distance of 954 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Seattle to Carlsbad?

    Before booking your flight to Carlsbad from Seattle, check out the most reliable airlines to get you to your destination on time: China Eastern (98%), ITA Airways (97%), EL AL( 96%).

  • What are the cheapest flights from Seattle to Carlsbad?

    Looking for the cheapest flight from Seattle to Carlsbad? While on average our users pay $561, our data indicates the cheapest price to be $72. The most popular route (Seattle/Tacoma Intl - Los Angeles), is priced around $102.

  • Can I find deals for flights from Seattle to Carlsbad that include hotel bookings?

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

  • How can I find direct flights from Seattle to Carlsbad?

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

  • Can I find deals for business class flights from Seattle to Carlsbad?

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Carlsbad?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Carlsbad (average of $246). Flying from Seattle to Carlsbad in March is currently the most expensive (average of $324). 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

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Alternative routes for Seattle to Carlsbad

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Top 8 airlines flying from Seattle to Carlsbad

Discover the top 8 airlines that operate flights from Seattle 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 October 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$46Average$164FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$72Average$159FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$98Average$258FlexibilityNo cancel feeOn-time85%
DeltaCheapest$118Average$260FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$130Average$277FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$147Average$280FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$156Average$295FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$167Average$383FlexibilityNo cancel feeOn-time71%

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