$68 Find Cheap Flights from Seattle to Carlsbad

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Carlsbad departing on 4/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights from Seattle to Carlsbad

Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$96
Typical prices: $289-$144
Frontier
Mon 4/20Thu 5/7
SEA - LAX • Non-stop
Cheapest non-stop
$96
Typical prices: $323-$156
Frontier
Mon 4/20Thu 4/23
SEA - LAX • Non-stop
Arrival airport
You can't fly directly to Carlsbad. It is served by Los Angeles (LAX), located 81.6 miles from Carlsbad.
FAQs
FAQs
FAQs
FAQs
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Carlsbad!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Seattle to Carlsbad (SEA-LAX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Carlsbad that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Carlsbad

Mon, Apr 20 - Thu, May 7
Frontier Logo
10:57 am - 1:45 pm
SEA
-
LAX
2h 48mnonstop
Frontier Logo
3:15 pm - 6:35 pm
LAX
-
SEA
3h 20mnonstop
$96Frontier
Sun, Apr 19 - Tue, Apr 28
Frontier Logo
11:12 am - 2:04 pm
SEA
-
LAX
2h 52mnonstop
Frontier Logo
2:45 pm - 5:42 pm
LAX
-
SEA
2h 57mnonstop
$97Frontier
Thu, May 7 - Sat, May 16
Frontier Logo
11:06 am - 2:03 pm
SEA
-
LAX
2h 57mnonstop
Frontier Logo
2:24 pm - 5:37 pm
LAX
-
SEA
3h 13mnonstop
$98Frontier
Wed, Apr 15 - Wed, Apr 15
Frontier Logo
10:57 am - 1:45 pm
SEA
-
LAX
2h 48mnonstop
Frontier Logo
4:17 pm - 9:27 am
LAX
-
SEA
17h 10m
1 stop
$99Frontier
Sat, Apr 18 - Thu, May 7
Frontier Logo
10:57 am - 1:45 pm
SEA
-
LAX
2h 48mnonstop
Frontier Logo
3:15 pm - 6:35 pm
LAX
-
SEA
3h 20mnonstop
$100Frontier
Sun, Apr 19 - Tue, Apr 28
Frontier Logo
9:54 pm - 8:18 am
SEA
-
LAX
10h 24m
1 stop
Frontier Logo
2:45 pm - 5:42 pm
LAX
-
SEA
2h 57mnonstop
$101Frontier
Mon, Apr 13 - Wed, Apr 15
Multiple Airlines Logo
9:34 pm - 9:06 am
SEA
-
LAX
11h 32m
1 stop
Multiple Airlines Logo
3:45 pm - 6:42 pm
LAX
-
SEA
2h 57mnonstop
$102Multiple Airlines
Sun, Apr 19 - Wed, May 13
Frontier Logo
9:54 pm - 8:18 am
SEA
-
LAX
10h 24m
1 stop
Frontier Logo
3:15 pm - 6:35 pm
LAX
-
SEA
3h 20mnonstop
$103Frontier
Fri, Apr 24 - Tue, Apr 28
Frontier Logo
10:11 pm - 4:15 pm
SEA
-
LAX
18h 04m
1 stop
Frontier Logo
2:45 pm - 5:42 pm
LAX
-
SEA
2h 57mnonstop
$104Frontier
Mon, Apr 20 - Wed, Apr 22
Frontier Logo
10:57 am - 1:45 pm
SEA
-
LAX
2h 48mnonstop
Frontier Logo
2:45 pm - 5:42 pm
LAX
-
SEA
2h 57mnonstop
$106Frontier
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$68
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Seattle to Los Angeles

When to book flights from Seattle to Carlsbad

Are your dates flexible? Find out the best times to travel from Seattle to Carlsbad based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Seattle to Carlsbad: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Seattle to Carlsbad 
MarisaFlew with American Airlines
SEA
-
LAX
Jun 2025
Take Alaska Airlines - Clear was great to have at both airports, especially seattle where there was a large security line
ReidFlew with United Airlines
SEA
-
LAX
Oct 2024
SeaTac does not have a very good or equitable system for security lines. First class passengers don’t have a TSA precheck option, while there are only 2 TSA precheck lines on opposite sides of the terminal. Highly recommend getting TSA plus Clear, as the airport heavily favors this combination, with each section of the terminal having one of these options. I almost missed my flight because the only TSA precheck line was about 45 minutes long.
BruceFlew with Alaska Airlines
SEA
-
LAX
Nov 2024
Tight interline connection at LAX - barely made the flight. Directions from AS arrival gate to separate AA commuter terminal for AS codeshare flight connecting to TUS would have been nice.
LauraFlew with Alaska Airlines
SEA
-
LAX
Jul 2024
LAX is a bit of a mess. Very long walk between terminals.
LaurenFlew with Delta
SEA
-
LAX
Feb 2024
If you have kids, bring your own screens. We were counting on the inflight entertainment and it was a definite letdown. Also, TSA Pre-check is only available at station 2, but wait times are posted at each station so you can see if it’s worth the walk.

FAQs for booking flights from Seattle to Carlsbad

  • Which airports will I be using when flying from Seattle to Carlsbad?

    When flying out of Seattle you’ll be using Seattle/Tacoma Intl. Carlsbad does not have its own airport so you’ll be flying into nearby Los Angeles airport, which is 81.6 mi away.

  • How long does a flight from Seattle to Carlsbad take?

    Direct flights cover the 954 miles separating Seattle and Carlsbad in about 2h 39m.

  • How many flights are there between Seattle and Carlsbad?

    143 direct flights run between Seattle and Carlsbad on a daily basis. On average, there are about 1,004 departures each week.

  • What’s the cheapest day of the week to fly between Seattle and Carlsbad?

    Consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.

  • How does KAYAK find such low prices on flights from Seattle to Carlsbad?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Carlsbad.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Carlsbad?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Carlsbad from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Carlsbad?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Carlsbad with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Carlsbad?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Carlsbad from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Seattle to Carlsbad?

    In the last 72 hours, the cheapest one-way ticket between Seattle and Carlsbad found on KAYAK was with Frontier for $41. Frontier offered a round-trip connection from $60 and Spirit Airlines from $78.

Top tips for finding cheap flights from Seattle to Carlsbad

  • There is no airport in Carlsbad. Instead, you’ll be flying into Los Angeles Airport when flying between Seattle and Carlsbad.
  • The cheapest flight from Seattle to Carlsbad was found 65 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is May.

Reviews of the top 5 airlines serving Seattle to Carlsbad

 
Need help choosing which airline to fly with from Seattle to Carlsbad? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12134 reviews
7.0Entertainment
7.8Comfort
8.1Boarding
7.0Food
8.5Crew
Airline reviews

It was a bumpy flight but the crew was very attentive and made it a safe and enjoyable experience.

10.0 ExcellentAnonymous, Mar 2026
SEA - LAX
Read more Alaska Airlines reviews

It was a bumpy flight but the crew was very attentive and made it a safe and enjoyable experience.

i canceled my flight from SEA to SFO, SNA to SEA and received full refund from Alaska Airlines. i am pleased with the customer service.

Departing flight for our weekend trip was cancelled due to weather which meant our return flight was useless. The whole thing was difficult to get support through but Alaska did recover and was able to reimburse us for the flights yesterday. For some reason, Kayak was not kept in the loop, adding to the confusion.

i canceled my return flight package with Alaska Airlines. Customer Service was excellent and assisted me to cancelled both of our reservations and returned the payment in full. that is excellent service and understanding and empathy of the customers' needs. i like Alaska Airlines and recommend AS to everyone.

The flight attendant was friendly and attentive. Although our interaction was brief—- it made a difference. The crew was upfront about turbulence. I like the Maui pretzels.

I paid for the WiFi and it didn’t work during the whole flight

Great experience, staff and crew were very professional, friendly and helpful!

The ticket I purchased through Kayak did not show up in my Alaska Airlines app, and neither of the codes given to me worked for online check in. I've never had to show up to the airport at 6am wondering if I've been scammed. Cheap flight fare or whatever does not play well with airlines and I will be wary of using Kayak in the future.

The plane was delayed which was annoying. No seat back screens is a bummer. Staff if great

I wish you would have just canceled the Saturday flight from sea to rdd on Dec 13. the diversion cost me more time and money than if I had just rebooked to Sacramento. It was a huge headache and cost.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

The cabin temperature was nice and cool. The wifi was not working.

As previously noted, this flight was great: departure was timely, the crew was friendly and attentive, and wifi connectivity was seamless. In particular, I appreciated that the flight attendant just told me to stow the laptop right before takeoff/landing, and trusted me to do so (which I did!).

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

Left a few minutes early. Got in 15 minutes early. Very attentive service on board. Very organized boarding.

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

First flight out and was 85 minutes delayed. Notification came out way too late

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

Horrible service no Wi-Fi connection on both leg of the flight and they are refusing to fix bad service

I will never fly ANA again. They lost one of my large pieces of checked luggage, the heaviest one with the most valuable items in it, and they said they will not send me an email unless they can't find it, even though the paper they gave me to track the status of my lost luggage requires a code from an email they are supposed to send me so I can do baggage tracing. They claim to be an international airline, but they also insist on calling a Japanese telephone number to confirm where to send the lost baggage if they find it. It is impossible to find an actual contact email address for customer support on their website, and their AI chatbot is unhelpful, directing you to a webpage that says it is for contact information but does not have any actual email addresses or phone numbers listed on it. My seat in economy did not recline at all, even though I was not sitting in an exit row nor the very back row. I had to sit in the fully upright position for over ten hours of international travel. Awful experience overall.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Delayed for mechanical and no updates on what was happening and how long the delay might be.

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Amazing I love American. I’ll never fly anyone else if I can help it.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Everything you need to know for your flight from Seattle to Carlsbad

Complete your trip to Carlsbad with a hotel stay or car rental