United Flight 789 Deals & Information (2025/2026)

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United Flight 789 Route Deals From $39

The cheapest prices found with in the last 7 days for return flights were $77 and $39 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 14 - Tue, Oct 28
AUS
Austin-Bergstrom Intl.
IAH
George Bush Intercontinental
$77 Roundtrip, found 5 days ago
$77
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Austin-Bergstrom Intl. to George Bush Intercontinental, returning Tue, Oct 28, priced at $77 found 5 days ago
Tue, Oct 14 - Tue, Oct 28
AUS
Austin-Bergstrom Intl.
IAH
George Bush Intercontinental
$94 Roundtrip, found 5 days ago
$94
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Austin-Bergstrom Intl. to George Bush Intercontinental, returning Tue, Oct 28, priced at $94 found 5 days ago
Tue, Oct 14 - Tue, Oct 28
AUS
Austin-Bergstrom Intl.
IAH
George Bush Intercontinental
$137 Roundtrip, found 5 days ago
$137
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Austin-Bergstrom Intl. to George Bush Intercontinental, returning Tue, Oct 28, priced at $137 found 5 days ago
Tue, Oct 14 - Tue, Oct 28
AUS
Austin-Bergstrom Intl.
IAH
George Bush Intercontinental
$148 Roundtrip, found 5 days ago
$148
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Austin-Bergstrom Intl. to George Bush Intercontinental, returning Tue, Oct 28, priced at $148 found 5 days ago
Tue, Oct 14 - Tue, Oct 28
AUS
Austin-Bergstrom Intl.
IAH
George Bush Intercontinental
$154 Roundtrip, found 5 days ago
$154
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Austin-Bergstrom Intl. to George Bush Intercontinental, returning Tue, Oct 28, priced at $154 found 5 days ago
Tue, Oct 14 - Tue, Oct 28
AUS
Austin-Bergstrom Intl.
IAH
George Bush Intercontinental
$162 Roundtrip, found 5 days ago
$162
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Austin-Bergstrom Intl. to George Bush Intercontinental, returning Tue, Oct 28, priced at $162 found 5 days ago
Tue, Oct 14 - Tue, Oct 28
AUS
Austin-Bergstrom Intl.
IAH
George Bush Intercontinental
$178 Roundtrip, found 5 days ago
$178
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Austin-Bergstrom Intl. to George Bush Intercontinental, returning Tue, Oct 28, priced at $178 found 5 days ago
Tue, Oct 14 - Tue, Oct 28
AUS
Austin-Bergstrom Intl.
IAH
George Bush Intercontinental
$198 Roundtrip, found 5 days ago
$198
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Austin-Bergstrom Intl. to George Bush Intercontinental, returning Tue, Oct 28, priced at $198 found 5 days ago
Tue, Oct 14 - Tue, Oct 28
AUS
Austin-Bergstrom Intl.
IAH
George Bush Intercontinental
$205 Roundtrip, found 5 days ago
$205
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Austin-Bergstrom Intl. to George Bush Intercontinental, returning Tue, Oct 28, priced at $205 found 5 days ago
Tue, Oct 14 - Tue, Oct 28
AUS
Austin-Bergstrom Intl.
IAH
George Bush Intercontinental
$207 Roundtrip, found 5 days ago
$207
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from Austin-Bergstrom Intl. to George Bush Intercontinental, returning Tue, Oct 28, priced at $207 found 5 days ago

Frequently asked questions

What route does flight number UA789 take?
UA789 flies directly from Houston Airport to McCarran Airport. During this journey, expect to be in the air for roughly 3 hours and 30 minutes. Consider booking ahead to secure your preferred seat.
What terminal does UA789 fly out of?
Direct flights to and from IAH and LAS are served by flight number UA789, and those traveling on this flight usually depart from Terminal C.
What kind of plane is on flight number UA789?
There's a good chance you'll find yourself jumping on board a Boeing 737-800 if you have a seat on flight UA789. This flight almost always departs from IAH and lands at Las Vegas, NV Airport (LAS-McCarran Intl.).
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 UA789 flight with Travelocity, please visit our Customer Service Portal.