$102 Cheap flight deals from St. Louis (STL) to Carlsbad (SAN)

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This Weekend's Flight Deals from St. Louis to Carlsbad

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, May 30 - Sun, Jun 1
STL
Lambert-St. Louis Intl.
SAN
San Diego Intl.
$255 Roundtrip, found 5 hours ago
$255
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Fri, May 30 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Jun 1, priced at $255 found 5 hours ago

Airfares from $102 One Way, $232 Round Trip from St. Louis to Carlsbad

Prices starting at $232 for return flights and $102 for one-way flights to Carlsbad were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 6 - Mon, Sep 8
STL
St. Louis
SAN
San Diego
$232 Roundtrip, found 2 days ago
$232
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Sep 6 from St. Louis to San Diego, returning Mon, Sep 8, priced at $232 found 2 days ago
Sun, Sep 14 - Sun, Sep 21
STL
St. Louis
SAN
San Diego
$234 Roundtrip, just found
$234
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Sep 14 from St. Louis to San Diego, returning Sun, Sep 21, priced at $234 just found
Tue, Jun 24 - Fri, Jun 27
STL
St. Louis
SAN
San Diego
$241 Roundtrip, found 5 days ago
$241
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Jun 24 from St. Louis to San Diego, returning Fri, Jun 27, priced at $241 found 5 days ago
Fri, Oct 31 - Sat, Nov 8
STL
St. Louis
CLD
Carlsbad
$257 Roundtrip, found 5 days ago
$257
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 31 from St. Louis to Carlsbad, returning Sat, Nov 8, priced at $257 found 5 days ago
Mon, Sep 29 - Tue, Sep 30
STL
St. Louis
SAN
San Diego
$262 Roundtrip, found 5 days ago
$262
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Sep 29 from St. Louis to San Diego, returning Tue, Sep 30, priced at $262 found 5 days ago

Carlsbad economy flight packages

Price found within the past 48 hours. Click for updated prices.
Little Italy Inn - Limited Service Apart Hotel
2.5-star property

Little Italy Inn - Limited Service Apart Hotel

8/10 Very Good! (3 reviews)

Jun 27 - Jun 30

3 night stay

St. Louis (STL) to San Diego (SAN)

Frontier Airlines • Non-stop • Coach

San Diego (SAN) to St. Louis (STL)

United • Non-stop • Coach
per person
found 7 hours ago
The Sofia Hotel
3.5-star property

The Sofia Hotel

8.2/10 Very Good! (1,442 reviews)

Jul 2 - Jul 7

5 night stay

St. Louis (STL) to San Diego (SAN)

Frontier Airlines • Non-stop roundtrip • Coach
Save 100% on your flight
per person
found 20 hours ago
The hotel was well staffed and the rooms where clean.

Reviewed on Apr 14, 2025

Catamaran Resort and Spa
4.0-star property

Catamaran Resort and Spa

8.2/10 Very Good! (1,024 reviews)

Jul 14 - Jul 19

5 night stay

St. Louis (STL) to San Diego (SAN)

Frontier Airlines • Non-stop roundtrip • Coach
Save 100% on your flight
per person
found 10 hours ago
Management needs to ensure that the pool closes as advertised. There were guests yelling and being very loud as late as 11pm. there needs to be ice machines in the building that we stayed in. Room 309. Prices were way too high! $15 for a bowl of oatmeal and $18 for a mixed drink?? there should be some kind of price break for guests. I understand that California is a financial mess but guests should be treated to some kind of reward for staying there.

Reviewed on Mar 24, 2025

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More About Flying To Carlsbad from St. Louis

Route Information for Flights from St. Louis to Carlsbad

Origin Airport IATA Code
STL
Destination Airport IATA Code
SAN
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

St. Louis to Carlsbad

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.