$108+ Cheap flights from Seattle (SEA) 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAX
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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Find cheap flights from Seattle 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 Seattle/Tacoma Intl to Carlsbad are usually found in March or May, booked 68 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from Seattle to Carlsbad
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to CarlsbadExplore 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 July 28, 2026.
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 July 28, 2026.
This Expedia deal was found by Cheapflights users on 7/28. 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.
Fri 10/911:06 am
SEA
- LAX
Nonstop2h 55m
Frontier
Mon 10/123:16 pm
LAX
- SEA
Nonstop3h 10m
Frontier
Deal found 7/28![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/310:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Sun 9/66:55 am
LAX
- SEA
1 stop8h 33m
Frontier
Deal found 7/28![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sun 9/610:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Mon 9/710:22 pm
LAX
- SEA
1 stop12h 17m
Frontier
Deal found 7/27![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Tue 8/1810:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Mon 8/243:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/24![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Tue 9/110:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Tue 9/83:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/27![Frontier logo]()
$152
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:06 am
SEA
- LAX
Nonstop2h 55m
Frontier
Sat 10/243:16 pm
LAX
- SEA
Nonstop3h 10m
Frontier
Deal found 7/26![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Wed 8/262:37 pm
SEA
- LAX
1 stop9h 34m
Frontier
Tue 9/13:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/26![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:06 pm
SEA
- LAX
1 stop29h 05m
Frontier
Tue 9/13:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/25![Frontier logo]()
$155
This Frontier deal was found by Cheapflights users on 7/25. 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.
Wed 8/1910:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Tue 8/253:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/25![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 9/109:16 pm
SEA
- LAX
1 stop18h 36m
Frontier
Mon 9/1410:27 pm
LAX
- SEA
1 stop11h 33m
Frontier
Deal found 7/23![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Mon 8/319:29 pm
SEA
- LAX
1 stop12h 00m
Frontier
Wed 9/93:09 pm
LAX
- SEA
Nonstop3h 01m
Frontier
Deal found 7/26![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sat 8/222:37 pm
SEA
- LAX
1 stop9h 34m
Frontier
Tue 8/253:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/27![Frontier logo]()
$159
Best flights from Seattle to CarlsbadDiscover carefully curated flight deals from Seattle to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
Discover carefully curated flight deals from Seattle to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
This Delta deal was found by Cheapflights users on 7/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:45 pm
SEA
- LAX
Nonstop2h 47m
Delta
Sun 8/167:15 am
LAX
- SEA
Nonstop2h 42m
Delta
Deal found 7/23![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 7/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:50 am
SEA
- LAX
2 stops7h 30m
Southwest
Tue 11/35:50 am
LAX
- SEA
1 stop7h 10m
Southwest
Deal found 7/26![Southwest logo]()
$212
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:16 pm
SEA
- LAX
1 stop4h 48m
United Airlines
Sat 8/221:25 pm
LAX
- SEA
1 stop5h 04m
United Airlines
Deal found 7/25![United Airlines logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:30 pm
SEA
- LAX
1 stop5h 32m
Alaska Airlines
Tue 9/155:00 pm
LAX
- SEA
1 stop4h 40m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 7/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/223:15 pm
SEA
- LAX
Nonstop2h 41m
Delta
Fri 8/289:00 pm
LAX
- SEA
Nonstop2h 44m
Delta
Deal found 7/24![Delta logo]()
$207
This Southwest deal was found by Cheapflights users on 7/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/222:20 pm
SEA
- LAX
1 stop4h 15m
Southwest
Sat 8/294:20 pm
LAX
- SEA
1 stop4h 10m
Southwest
Deal found 7/25![Southwest logo]()
$222
This Southwest deal was found by Cheapflights users on 7/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:30 am
SEA
- LAX
1 stop5h 15m
Southwest
Tue 9/153:15 pm
LAX
- SEA
1 stop3h 55m
Southwest
Deal found 7/23![Southwest logo]()
$227
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:40 pm
SEA
- LAX
1 stop6h 15m
Southwest
Mon 10/125:00 pm
LAX
- SEA
1 stop6h 40m
Southwest
Deal found 7/27![Southwest logo]()
$232
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:05 am
SEA
- LAX
1 stop4h 20m
Southwest
Wed 9/231:25 pm
LAX
- SEA
2 stops6h 55m
Southwest
Deal found 7/27![Southwest logo]()
$233
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:55 am
SEA
- LAX
1 stop5h 45m
Southwest
Tue 9/81:25 pm
LAX
- SEA
1 stop7h 50m
Southwest
Deal found 7/27![Southwest logo]()
$247
This Southwest deal was found by Cheapflights users on 7/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:15 pm
SEA
- LAX
1 stop6h 20m
Southwest
Mon 10/194:30 pm
LAX
- SEA
1 stop4h 30m
Southwest
Deal found 7/25![Southwest logo]()
$252
Last-minute flights from Seattle to CarlsbadDiscover last-minute flight deals from Seattle to Carlsbad. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Carlsbad. Data last updated July 28, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Tue 8/1810:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Mon 8/243:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/24![Frontier logo]()
$151
This Frontier deal was found by Cheapflights users on 7/25. 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.
Wed 8/1910:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Tue 8/253:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/25![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 8/202:37 pm
SEA
- LAX
1 stop9h 34m
Frontier
Sat 8/223:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/27![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/202:37 pm
SEA
- LAX
1 stop9h 34m
Frontier
Mon 8/249:09 pm
LAX
- SEA
1 stop12h 10m
Frontier
Deal found 7/25![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/2110:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Mon 8/2410:22 pm
LAX
- SEA
1 stop12h 17m
Frontier
Deal found 7/23![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sat 8/222:37 pm
SEA
- LAX
1 stop9h 34m
Frontier
Tue 8/253:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/27![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Wed 8/262:37 pm
SEA
- LAX
1 stop9h 34m
Frontier
Tue 9/13:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/26![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Wed 8/267:06 pm
SEA
- LAX
1 stop13h 24m
Frontier
Fri 8/283:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/27![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:06 pm
SEA
- LAX
1 stop29h 05m
Frontier
Tue 9/13:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Deal found 7/25![Frontier logo]()
$155
This Travelocity deal was found by Cheapflights users on 7/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Wed 9/93:09 pm
LAX
- SEA
Nonstop3h 01m
Frontier
Deal found 7/25![Frontier logo]()
$153
One-way flights from Seattle to CarlsbadSearch for one-way flight options from Seattle to Carlsbad. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
Search for one-way flight options from Seattle to Carlsbad. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This iWofly deal was found by Cheapflights users on 7/27. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/27![Frontier logo]()
$108
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:15 am
SEA
- LAX
1 stop6h 35m
Southwest
Deal found 7/28![Southwest logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sat 9/264:27 pm
SEA
- LAX
1 stop7h 43m
Frontier
Deal found 7/27![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/122:22 pm
SEA
- LAX
1 stop18h 08m
Frontier
Deal found 7/23![Frontier logo]()
$112
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:25 pm
SEA
- LAX
2 stops6h 25m
Southwest
Deal found 7/28![Southwest logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/1910:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/23![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Fri 8/219:29 pm
SEA
- LAX
2 stops17h 51m
Frontier
Deal found 7/26![Frontier logo]()
$116
This Alaska Airlines deal was found by Cheapflights users on 7/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:05 pm
SEA
- LAX
1 stop7h 02m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$117
This Trip.com deal was found by Cheapflights users on 7/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/23![Frontier logo]()
$118
This Super.com deal was found by Cheapflights users on 7/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/26![Frontier logo]()
$119
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:11 am
SEA
- LAX
Nonstop2h 59m
American Airlines
Deal found 7/26![American Airlines logo]()
$120
Find flight deals from Seattle to Carlsbad
Keep the following information in mind while searching for Seattle to Carlsbad flight deals. Data was last updated July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $149 (Kiwi.com) |
One-way from | $108 (iWofly) |
Popular in | June |
Cheapest in | March |
Average price | $292 |
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 July 28, 2026.
Use the filters below to find and compare flights from Seattle to Carlsbad that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleLos Angeles
SEA - LAX
SEALAX
Seattle/Tacoma Intl
Thu 8/13
9:45 pm-12:32 am
Nonstop2h 47m
Los Angeles
Sun 8/16
7:15 am-9:57 am
Nonstop2h 42m
$197
Quickest round-trip
SeattleLos Angeles
SEA - LAX
SEALAX
Seattle/Tacoma Intl
Sat 8/22
3:15 pm-5:56 pm
Nonstop2h 41m
Los Angeles
Fri 8/28
9:00 pm-11:44 pm
Nonstop2h 44m
$207
SeattleLos Angeles
SEA - LAX
SEALAX
Seattle/Tacoma Intl
Sat 10/31
6:50 am-2:20 pm
2 stops7h 30m
Los Angeles
Tue 11/3
5:50 am-1:00 pm
1 stop7h 10m
$212
SeattleLos Angeles
SEA - LAX
SEALAX
Seattle/Tacoma Intl
Fri 8/21
1:16 pm-6:04 pm
1 stop4h 48m
Los Angeles
Sat 8/22
1:25 pm-6:29 pm
1 stop5h 04m
$217
SeattleLos Angeles
SEA - LAX
SEALAX
Seattle/Tacoma Intl
Sat 8/22
2:20 pm-6:35 pm
1 stop4h 15m
Los Angeles
Sat 8/29
4:20 pm-8:30 pm
1 stop4h 10m
$222
SeattleLos Angeles
SEA - LAX
SEALAX
Seattle/Tacoma Intl
Fri 9/11
5:30 am-10:45 am
1 stop5h 15m
Los Angeles
Tue 9/15
3:15 pm-7:10 pm
1 stop3h 55m
$227
SeattleLos Angeles
SEA - LAX
SEALAX
Seattle/Tacoma Intl
Tue 9/29
12:40 pm-6:55 pm
1 stop6h 15m
Los Angeles
Mon 10/12
5:00 pm-11:40 pm
1 stop6h 40m
$232
SeattleLos Angeles
SEA - LAX
SEALAX
Seattle/Tacoma Intl
Sun 9/20
7:05 am-11:25 am
1 stop4h 20m
Los Angeles
Wed 9/23
1:25 pm-8:20 pm
2 stops6h 55m
$233
SeattleLos Angeles
SEA - LAX
SEALAX
Seattle/Tacoma Intl
Tue 9/8
12:30 pm-6:02 pm
1 stop5h 32m
Los Angeles
Tue 9/15
5:00 pm-9:40 pm
1 stop4h 40m
$237
SeattleLos Angeles
SEA - LAX
SEALAX
Seattle/Tacoma Intl
Tue 9/8
5:55 am-11:40 am
1 stop5h 45m
Los Angeles
Tue 9/8
1:25 pm-9:15 pm
1 stop7h 50m
$247
Showing 1-10 of 21 resultsSorted by cheapest first
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.
SEA-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 Seattle to Carlsbad
SEA-C4D
SEA-LAX
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 July 28, 2026.
One of the essential ways to save on airfare from Seattle to Carlsbad is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 6% on airfare.
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 July 28, 2026.
The most flights from SEA to C4D are scheduled on a Monday (115 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (51 on average).
How much does it cost to fly round-trip from Seattle to Carlsbad?
Airfare is below average for this route at the moment.
Seattle to Carlsbad flights typically cost between $194 and $331 in September.The cheapest round-trip price found within the last 5 days was $149 on Frontier (Sep 10-Sep 14).
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 July 25, 2026.
Travelers seeking maximum savings on their Seattle to Carlsbad flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 July 28, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited 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.
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Crew
8.5
Entertainment
7.0
Food
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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.
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Alternative routes for Seattle to Carlsbad
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Complete your trip
Complete your trip to Carlsbad by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Carlsbad by cabin class
Find flights from Seattle to Carlsbad, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Carlsbad flights
Browse other Seattle and Carlsbad flight options. Last updated on July 28, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to Carlsbad flights
Consider these flights traveling from Seattle to Carlsbad.
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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$44 | Average$207 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$285 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$110 | Average$283 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$123 | Average$276 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$123 | Average$297 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$136 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$148 | Average$300 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$198 | Average$353 | FlexibilityNo cancel fee | On-time71% |