United Flight 6172 Deals & Information (2025/2026)

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United Flight 6172 Route Deals From $157

The cheapest prices found with in the last 7 days for return flights were $262 and $157 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Dec 5 - Mon, Dec 8
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$262 Roundtrip, found 2 days ago
$262
Roundtrip
found 2 days ago
Select United flight, departing Fri, Dec 5 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Mon, Dec 8, priced at $262 found 2 days ago
Sat, Jan 24 - Tue, Jan 27
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$329 Roundtrip, found 3 days ago
$329
Roundtrip
found 3 days ago
Select United flight, departing Sat, Jan 24 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Tue, Jan 27, priced at $329 found 3 days ago
Fri, Mar 13 - Tue, Mar 17
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$370 Roundtrip, found 10 hours ago
$370
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Mar 13 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Tue, Mar 17, priced at $370 found 10 hours ago
Fri, Mar 13 - Tue, Mar 17
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$374 Roundtrip, found 10 hours ago
$374
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Mar 13 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Tue, Mar 17, priced at $374 found 10 hours ago
Fri, Mar 13 - Tue, Mar 17
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$411 Roundtrip, found 10 hours ago
$411
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Mar 13 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Tue, Mar 17, priced at $411 found 10 hours ago
Fri, Mar 13 - Tue, Mar 17
IAH
George Bush Intercontinental
STL
Lambert-St. Louis Intl.
$414 Roundtrip, found 10 hours ago
$414
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Mar 13 from George Bush Intercontinental to Lambert-St. Louis Intl., returning Tue, Mar 17, priced at $414 found 10 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.