United Flight UA6273 Deals & Information (2025/2026)

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United Flight 6273 Route Deals From $60

The cheapest prices found with in the last 7 days for return flights were $117 and $60 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 29 - Sat, Nov 1
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$117 Roundtrip, found 4 hours ago
$117
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Oct 29 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Sat, Nov 1, priced at $117 found 4 hours ago
Tue, Oct 28 - Fri, Oct 31
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$136 Roundtrip, found 1 hour ago
$136
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Oct 28 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Fri, Oct 31, priced at $136 found 1 hour ago
Wed, Oct 29 - Sat, Nov 1
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$140 Roundtrip, found 4 hours ago
$140
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Oct 29 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Sat, Nov 1, priced at $140 found 4 hours ago
Tue, Oct 28 - Fri, Oct 31
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$145 Roundtrip, found 1 hour ago
$145
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Oct 28 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Fri, Oct 31, priced at $145 found 1 hour ago
Thu, Oct 30 - Sun, Nov 2
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$152 Roundtrip, found 4 hours ago
$152
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Oct 30 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Sun, Nov 2, priced at $152 found 4 hours ago
Wed, Oct 29 - Sat, Nov 1
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$176 Roundtrip, found 4 hours ago
$176
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Oct 29 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Sat, Nov 1, priced at $176 found 4 hours ago
Wed, Oct 29 - Sat, Nov 1
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$184 Roundtrip, found 4 hours ago
$184
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Oct 29 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Sat, Nov 1, priced at $184 found 4 hours ago
Tue, Oct 28 - Fri, Oct 31
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$187 Roundtrip, found 1 hour ago
$187
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Oct 28 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Fri, Oct 31, priced at $187 found 1 hour ago
Wed, Oct 22 - Mon, Oct 27
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$197 Roundtrip, found 6 hours ago
$197
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Oct 22 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Mon, Oct 27, priced at $197 found 6 hours ago
Tue, Oct 28 - Fri, Oct 31
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$204 Roundtrip, found 1 hour ago
$204
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Oct 28 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Fri, Oct 31, priced at $204 found 1 hour ago
Tue, Oct 28 - Fri, Oct 31
STL
Lambert-St. Louis Intl.
IAH
George Bush Intercontinental
$207 Roundtrip, found 1 hour ago
$207
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Oct 28 from Lambert-St. Louis Intl. to George Bush Intercontinental, returning Fri, Oct 31, priced at $207 found 1 hour ago