United Flight 5123 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 5123 Route Deals From $214

The cheapest prices found with in the last 7 days for return flights were $201 and $214 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 26 - Tue, Sep 2
COD
Yellowstone Regional
DEN
Denver Intl.
$201 Roundtrip, found 6 days ago
$201
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Yellowstone Regional to Denver Intl., returning Tue, Sep 2, priced at $201 found 6 days ago
Tue, Aug 26 - Tue, Sep 2
COD
Yellowstone Regional
DEN
Denver Intl.
$222 Roundtrip, found 6 days ago
$222
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Yellowstone Regional to Denver Intl., returning Tue, Sep 2, priced at $222 found 6 days ago
Tue, Aug 26 - Tue, Sep 2
COD
Yellowstone Regional
DEN
Denver Intl.
$224 Roundtrip, found 6 days ago
$224
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Yellowstone Regional to Denver Intl., returning Tue, Sep 2, priced at $224 found 6 days ago
Tue, Aug 26 - Tue, Sep 2
COD
Yellowstone Regional
DEN
Denver Intl.
$227 Roundtrip, found 6 days ago
$227
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Yellowstone Regional to Denver Intl., returning Tue, Sep 2, priced at $227 found 6 days ago
Tue, Aug 26 - Tue, Sep 2
COD
Yellowstone Regional
DEN
Denver Intl.
$295 Roundtrip, found 6 days ago
$295
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Yellowstone Regional to Denver Intl., returning Tue, Sep 2, priced at $295 found 6 days ago
Tue, Aug 26 - Tue, Sep 2
COD
Yellowstone Regional
DEN
Denver Intl.
$298 Roundtrip, found 6 days ago
$298
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Yellowstone Regional to Denver Intl., returning Tue, Sep 2, priced at $298 found 6 days ago
Tue, Aug 26 - Tue, Sep 2
COD
Yellowstone Regional
DEN
Denver Intl.
$310 Roundtrip, found 6 days ago
$310
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Yellowstone Regional to Denver Intl., returning Tue, Sep 2, priced at $310 found 6 days ago
Tue, Aug 26 - Tue, Sep 2
COD
Yellowstone Regional
DEN
Denver Intl.
$312 Roundtrip, found 6 days ago
$312
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Yellowstone Regional to Denver Intl., returning Tue, Sep 2, priced at $312 found 6 days ago
Sat, Nov 22 - Sat, Nov 29
COD
Yellowstone Regional
DEN
Denver Intl.
$367 Roundtrip, found 6 days ago
$367
Roundtrip
found 6 days ago
Select United flight, departing Sat, Nov 22 from Yellowstone Regional to Denver Intl., returning Sat, Nov 29, priced at $367 found 6 days ago
Sat, Nov 22 - Sat, Nov 29
COD
Yellowstone Regional
DEN
Denver Intl.
$377 Roundtrip, found 6 days ago
$377
Roundtrip
found 6 days ago
Select United flight, departing Sat, Nov 22 from Yellowstone Regional to Denver Intl., returning Sat, Nov 29, priced at $377 found 6 days ago

Frequently asked questions

What route does flight number UA5123 take?
You'll be landing into PAH from Chicago, IL Airport (ORD-O'Hare Intl.) if you're traveling on flight number UA5123. You'll be in the air for 1 hour and 17 minutes during this trip. What's more, the flight conveniently travels non-stop.
What terminal does UA5123 fly out of?
Travelers on flight number UA5123 from Chicago, IL Airport (ORD-O'Hare Intl.) to Barkley Regional Airport (PAH) typically jet off from Terminal 2.
What kind of plane is on flight number UA5123?
The Bombardier CRJ is the aircraft most commonly used for flight number UA5123. More often than not, this flight heads off from O'Hare Intl. Airport (ORD) and comes in to land at PAH.
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 UA5123 flight with Travelocity, please visit our Customer Service Portal.