
United Flight UA6138 Deals & Information (2025/2026)
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United Flight 6138 Route Deals From $49
The cheapest prices found with in the last 7 days for return flights were $97 and $49 for one-way flights to San Antonio Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.
IAH
George Bush Intercontinental
SAT
San Antonio Intl.
$97 Roundtrip, found 3 days ago
$97
Roundtrip
found 3 days ago
IAH
George Bush Intercontinental
SAT
San Antonio Intl.
$114 Roundtrip, found 3 days ago
$114
Roundtrip
found 3 days ago
IAH
George Bush Intercontinental
SAT
San Antonio Intl.
$116 Roundtrip, found 3 days ago
$116
Roundtrip
found 3 days ago
IAH
George Bush Intercontinental
SAT
San Antonio Intl.
$124 Roundtrip, found 3 days ago
$124
Roundtrip
found 3 days ago
IAH
George Bush Intercontinental
SAT
San Antonio Intl.
$126 Roundtrip, found 2 days ago
$126
Roundtrip
found 2 days ago
IAH
George Bush Intercontinental
SAT
San Antonio Intl.
$141 Roundtrip, found 3 days ago
$141
Roundtrip
found 3 days ago
IAH
George Bush Intercontinental
SAT
San Antonio Intl.
$142 Roundtrip, found 2 days ago
$142
Roundtrip
found 2 days ago
IAH
George Bush Intercontinental
SAT
San Antonio Intl.
$148 Roundtrip, found 3 days ago
$148
Roundtrip
found 3 days ago
IAH
George Bush Intercontinental
SAT
San Antonio Intl.
$152 Roundtrip, found 3 days ago
$152
Roundtrip
found 3 days ago
IAH
George Bush Intercontinental
SAT
San Antonio Intl.
$154 Roundtrip, found 4 days ago
$154
Roundtrip
found 4 days ago