United Flight 6172 Deals & Information (2025/2026)

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United Flight 6172 Route Deals From $65

The cheapest prices found with in the last 7 days for return flights were $163 and $65 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 8 - Sun, Jan 11
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$163 Roundtrip, found 4 hours ago
$163
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Jan 8 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sun, Jan 11, priced at $163 found 4 hours ago
Thu, Jan 15 - Sun, Jan 18
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$165 Roundtrip, found 4 hours ago
$165
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Jan 15 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sun, Jan 18, priced at $165 found 4 hours ago
Thu, Jan 15 - Sun, Jan 18
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$167 Roundtrip, found 4 hours ago
$167
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Jan 15 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sun, Jan 18, priced at $167 found 4 hours ago
Thu, Jan 8 - Sun, Jan 11
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$203 Roundtrip, found 4 hours ago
$203
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Jan 8 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sun, Jan 11, priced at $203 found 4 hours ago
Thu, Jan 15 - Sun, Jan 18
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$204 Roundtrip, found 4 hours ago
$204
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Jan 15 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sun, Jan 18, priced at $204 found 4 hours ago
Thu, Jan 15 - Sun, Jan 18
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$204 Roundtrip, found 4 hours ago
$204
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Jan 15 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sun, Jan 18, priced at $204 found 4 hours ago
Thu, Jan 8 - Sun, Jan 11
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$214 Roundtrip, found 4 hours ago
$214
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Jan 8 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sun, Jan 11, priced at $214 found 4 hours ago
Thu, Jan 15 - Sun, Jan 18
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$219 Roundtrip, found 4 hours ago
$219
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Jan 15 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sun, Jan 18, priced at $219 found 4 hours ago
Thu, Jan 8 - Sun, Jan 11
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$233 Roundtrip, found 4 hours ago
$233
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Jan 8 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sun, Jan 11, priced at $233 found 4 hours ago
Thu, Jan 8 - Sun, Jan 11
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$234 Roundtrip, found 4 hours ago
$234
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Jan 8 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Sun, Jan 11, priced at $234 found 4 hours ago

Frequently asked questions

What route does flight number UA6172 take?
UA6172 operates from Houston Airport to Destin–Fort Walton Beach Airport and flies direct. This service typically takes 1 hour and 43 minutes.
What terminal does UA6172 fly out of?
Direct flights between Houston Airport and VPS are served by flight number UA6172, and those traveling on this route typically jet off from Terminal B.
What kind of plane is on flight number UA6172?
Expect to climb aboard an Embraer 175 if you're traveling on flight UA6172. Nearly all flights from IAH to Fort Walton Beach, FL Airport (VPS-Northwest Florida Regional) use this type of aircraft.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA6172 flight with Travelocity, please visit our Customer Service Portal.