$92 Cheap flight deals from Chicago (CHI) to San Marcos (SAN)
This Weekend's Flight Deals from Chicago to San Marcos
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.
ORD
O'Hare Intl.
SAN
San Diego Intl.
$310 Roundtrip, just found
$310
Roundtrip
just found
ORD
O'Hare Intl.
CLD
McClellan-Palomar
$379 Roundtrip, found 6 hours ago
$379
Roundtrip
found 6 hours ago
MDW
Midway Intl.
SAN
San Diego Intl.
$385 Roundtrip, found 9 hours ago
$385
Roundtrip
found 9 hours ago
RFD
Greater Rockford
SAN
San Diego Intl.
$414 Roundtrip, found 8 hours ago
$414
Roundtrip
found 8 hours ago
Airfares from $92 One Way, $169 Round Trip from Chicago to San Marcos
Prices starting at $169 for return flights and $92 for one-way flights to San Marcos were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
ORD
Chicago
SAN
San Diego
$169 Roundtrip, found 1 day ago
$169
Roundtrip
found 1 day ago
MDW
Chicago
SAN
San Diego
$235 Roundtrip, found 3 days ago
$235
Roundtrip
found 3 days ago
MDW
Chicago
SAN
San Diego
$239 Roundtrip, found 2 days ago
$239
Roundtrip
found 2 days ago
RFD
Rockford
SAN
San Diego
$246 Roundtrip, found 2 days ago
$246
Roundtrip
found 2 days ago
ORD
Chicago
SAN
San Diego
$277 Roundtrip, found 2 hours ago
$277
Roundtrip
found 2 hours ago
San Marcos economy flight packages
Price found within the past 48 hours. Click for updated prices.
3.5-star property
The Sofia Hotel
8.6/10 Excellent! (2,462 reviews)
Sep 30 - Oct 4
4 night stay
Chicago (CHI) to San Diego (SAN)
Southwest Airlines • Coach
San Diego (SAN) to Chicago (CHI)
Frontier Airlines • Coach
Price was $1,499, price is now $531 per person
$531
per person
found 1 day ago
Location was good for exploration
Reviewed on Aug 14, 2026
More About Flying To San Marcos from Chicago
Flights from Chicago
- Chicago to Orlando
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- Chicago to New York
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- Chicago to Dallas
- Chicago to Los Angeles
- Chicago to New Orleans
- Chicago to Washington
- Chicago to London
- Chicago to Paris
- Chicago to Toronto
- Chicago to Rome
- Chicago to San Francisco
- Chicago to Cleveland
- Chicago to Detroit
- Chicago to Sacramento
- Chicago to Montreal
- Chicago to Kansas City
- Chicago to Atlantic City
- Chicago to Hartford
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