Cheap Flights To San Marcos 2025

San Marcos Flights as Low as $154

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, May 24 - Sat, May 31
IAH
George Bush Intercontinental
SAN
San Diego Intl.
$154 Roundtrip, found 1 day ago
$154
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sat, May 24 from George Bush Intercontinental to San Diego Intl., returning Sat, May 31, priced at $154 found 1 day ago
Spirit Airlines
Tue, May 27 - Tue, Jun 3
IAH
George Bush Intercontinental
SAN
San Diego Intl.
$164 Roundtrip, found 1 day ago
$164
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Tue, May 27 from George Bush Intercontinental to San Diego Intl., returning Tue, Jun 3, priced at $164 found 1 day ago
Spirit Airlines
Tue, May 27 - Mon, Jun 2
IAH
George Bush Intercontinental
SAN
San Diego Intl.
$174 Roundtrip, found 1 day ago
$174
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Tue, May 27 from George Bush Intercontinental to San Diego Intl., returning Mon, Jun 2, priced at $174 found 1 day ago
Spirit Airlines
Sat, May 24 - Tue, Jun 3
IAH
George Bush Intercontinental
SAN
San Diego Intl.
$175 Roundtrip, found 1 day ago
$175
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sat, May 24 from George Bush Intercontinental to San Diego Intl., returning Tue, Jun 3, priced at $175 found 1 day ago
Spirit Airlines
Sat, May 24 - Sat, May 31
IAH
George Bush Intercontinental
SAN
San Diego Intl.
$177 Roundtrip, found 1 day ago
$177
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sat, May 24 from George Bush Intercontinental to San Diego Intl., returning Sat, May 31, priced at $177 found 1 day ago
Spirit Airlines
Mon, Jun 9 - Mon, Jun 9
IAH
George Bush Intercontinental
SAN
San Diego Intl.
$181 Roundtrip, found 1 day ago
$181
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Mon, Jun 9 from George Bush Intercontinental to San Diego Intl., returning Mon, Jun 9, priced at $181 found 1 day ago
Frontier Airlines
Sat, May 24 - Sat, May 31
IAH
George Bush Intercontinental
SAN
San Diego Intl.
$181 Roundtrip, found 1 day ago
$181
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, May 24 from George Bush Intercontinental to San Diego Intl., returning Sat, May 31, priced at $181 found 1 day ago
Spirit Airlines
Mon, May 26 - Mon, Jun 2
IAH
George Bush Intercontinental
SAN
San Diego Intl.
$184 Roundtrip, found 1 day ago
$184
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Mon, May 26 from George Bush Intercontinental to San Diego Intl., returning Mon, Jun 2, priced at $184 found 1 day ago
Frontier Airlines
Tue, Jun 3 - Sat, Jun 7
IAH
George Bush Intercontinental
SAN
San Diego Intl.
$208 Roundtrip, found 1 day ago
$208
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jun 3 from George Bush Intercontinental to San Diego Intl., returning Sat, Jun 7, priced at $208 found 1 day ago
Spirit Airlines
Mon, Jun 2 - Mon, Jun 9
PNS
Pensacola Intl.
SAN
San Diego Intl.
$228 Roundtrip, found 17 hours ago
$228
Roundtrip
found 17 hours ago
Select Spirit Airlines flight, departing Mon, Jun 2 from Pensacola Intl. to San Diego Intl., returning Mon, Jun 9, priced at $228 found 17 hours ago
United
Wed, Sep 17 - Sat, Sep 20
CAE
Columbia Metropolitan
SAN
San Diego Intl.
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 17 from Columbia Metropolitan to San Diego Intl., returning Sat, Sep 20, priced at $309 found 2 days ago
Delta
Wed, Sep 17 - Sat, Sep 20
CAE
Columbia Metropolitan
SAN
San Diego Intl.
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Sep 17 from Columbia Metropolitan to San Diego Intl., returning Sat, Sep 20, priced at $309 found 2 days ago
American Airlines
Wed, Sep 17 - Sat, Sep 20
CAE
Columbia Metropolitan
SAN
San Diego Intl.
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Sep 17 from Columbia Metropolitan to San Diego Intl., returning Sat, Sep 20, priced at $309 found 2 days ago
American Airlines
Sat, May 24 - Sat, May 31
IAH
George Bush Intercontinental
CLD
McClellan-Palomar
$339 Roundtrip, found 1 day ago
$339
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, May 24 from George Bush Intercontinental to McClellan-Palomar, returning Sat, May 31, priced at $339 found 1 day ago
United
Sat, May 24 - Sat, May 31
IAH
George Bush Intercontinental
SAN
San Diego Intl.
$344 Roundtrip, found 1 day ago
$344
Roundtrip
found 1 day ago
Select United flight, departing Sat, May 24 from George Bush Intercontinental to San Diego Intl., returning Sat, May 31, priced at $344 found 1 day ago
Alaska Airlines
Tue, Jul 8 - Tue, Jul 15
PNS
Pensacola Intl.
SAN
San Diego Intl.
$447 Roundtrip, found 2 hours ago
$447
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Tue, Jul 8 from Pensacola Intl. to San Diego Intl., returning Tue, Jul 15, priced at $447 found 2 hours ago

Flight Travel Guide

No matter how much you fight the travel bug, sometimes there's only one solution—to hop on the next plane to . AARP Travel Center Powered by Expedia® is here to help you cure that bug with great deals on flights and activities. AARP Travel combines members-only discounts with the best rates from Expedia, so members get the best price in travel, guaranteed. AARP members get exclusive rates on hotels and car rentals, and will not pay booking fees on flights.

Whether this trip is for business or pleasure, we will help you get there (without breaking the bank).

Airport Transportation

Once you have got your flight scheduled to , you might want to book a vehicle so you can get around on your own. You can book a rental car under our cars tab and jump in the car as soon as you step out of the airport. For more information, check out the San Marcos Car Rentals Guide.

Things to Do in

Not sure where to start? Not to worry—there's plenty to do in this city. has so much to do, and we can help you get started.

If you're looking for some fun activities to do in , make sure you check out our "Things to Do in San Marcos" page for excursions and activities for the whole clan.

Where to Stay in

has lodging to choose from, make sure you check out our hotel listings tab for some great recommendations from past visitors. No matter where you stay, just remember that you'll get the best price out there when you stay with AARP Travel.

Book Your Trip Now

Once you've decided when you want to visit, allow us here at AARP Travel to connect you with inexpensive tickets to . Don't wait a second longer—book your airfare today and land in tomorrow.