United Flight 5128 Deals & Information (2025/2026)

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United Flight 5128 Route Deals From $208

The cheapest prices found with in the last 7 days for return flights were $202 and $208 for one-way flights to Yellowstone Regional for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 6 - Tue, Sep 9
DEN
Denver Intl.
COD
Yellowstone Regional
$202 Roundtrip, found 1 day ago
$202
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 6 from Denver Intl. to Yellowstone Regional, returning Tue, Sep 9, priced at $202 found 1 day ago
Sat, Sep 6 - Tue, Sep 9
DEN
Denver Intl.
COD
Yellowstone Regional
$222 Roundtrip, found 1 day ago
$222
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 6 from Denver Intl. to Yellowstone Regional, returning Tue, Sep 9, priced at $222 found 1 day ago
Fri, Oct 17 - Sun, Oct 19
DEN
Denver Intl.
COD
Yellowstone Regional
$268 Roundtrip, found 5 days ago
$268
Roundtrip
found 5 days ago
Select United flight, departing Fri, Oct 17 from Denver Intl. to Yellowstone Regional, returning Sun, Oct 19, priced at $268 found 5 days ago
Fri, Oct 17 - Sun, Oct 19
DEN
Denver Intl.
COD
Yellowstone Regional
$273 Roundtrip, found 5 days ago
$273
Roundtrip
found 5 days ago
Select United flight, departing Fri, Oct 17 from Denver Intl. to Yellowstone Regional, returning Sun, Oct 19, priced at $273 found 5 days ago
Fri, Oct 17 - Sun, Oct 19
DEN
Denver Intl.
COD
Yellowstone Regional
$340 Roundtrip, found 5 days ago
$340
Roundtrip
found 5 days ago
Select United flight, departing Fri, Oct 17 from Denver Intl. to Yellowstone Regional, returning Sun, Oct 19, priced at $340 found 5 days ago
Sat, Sep 6 - Tue, Sep 9
DEN
Denver Intl.
COD
Yellowstone Regional
$366 Roundtrip, found 1 day ago
$366
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 6 from Denver Intl. to Yellowstone Regional, returning Tue, Sep 9, priced at $366 found 1 day ago
Wed, Sep 10 - Sat, Sep 13
DEN
Denver Intl.
COD
Yellowstone Regional
$415 Roundtrip, found 1 day ago
$415
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 10 from Denver Intl. to Yellowstone Regional, returning Sat, Sep 13, priced at $415 found 1 day ago
Tue, Sep 9 - Sat, Sep 13
DEN
Denver Intl.
COD
Yellowstone Regional
$424 Roundtrip, found 1 day ago
$424
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 9 from Denver Intl. to Yellowstone Regional, returning Sat, Sep 13, priced at $424 found 1 day ago
Wed, Sep 10 - Sat, Sep 13
DEN
Denver Intl.
COD
Yellowstone Regional
$466 Roundtrip, found 1 day ago
$466
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 10 from Denver Intl. to Yellowstone Regional, returning Sat, Sep 13, priced at $466 found 1 day ago
Fri, Oct 17 - Sun, Oct 19
DEN
Denver Intl.
COD
Yellowstone Regional
$559 Roundtrip, found 5 days ago
$559
Roundtrip
found 5 days ago
Select United flight, departing Fri, Oct 17 from Denver Intl. to Yellowstone Regional, returning Sun, Oct 19, priced at $559 found 5 days ago
Wed, Sep 10 - Sat, Sep 13
DEN
Denver Intl.
COD
Yellowstone Regional
$577 Roundtrip, found 1 day ago
$577
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 10 from Denver Intl. to Yellowstone Regional, returning Sat, Sep 13, priced at $577 found 1 day ago
Tue, Sep 9 - Sat, Sep 13
DEN
Denver Intl.
COD
Yellowstone Regional
$591 Roundtrip, found 1 day ago
$591
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 9 from Denver Intl. to Yellowstone Regional, returning Sat, Sep 13, priced at $591 found 1 day ago
Wed, Sep 10 - Sat, Sep 13
DEN
Denver Intl.
COD
Yellowstone Regional
$629 Roundtrip, found 1 day ago
$629
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 10 from Denver Intl. to Yellowstone Regional, returning Sat, Sep 13, priced at $629 found 1 day ago
Fri, Oct 17 - Sun, Oct 19
DEN
Denver Intl.
COD
Yellowstone Regional
$631 Roundtrip, found 5 days ago
$631
Roundtrip
found 5 days ago
Select United flight, departing Fri, Oct 17 from Denver Intl. to Yellowstone Regional, returning Sun, Oct 19, priced at $631 found 5 days ago
Sat, Sep 6 - Tue, Sep 9
DEN
Denver Intl.
COD
Yellowstone Regional
$682 Roundtrip, found 1 day ago
$682
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 6 from Denver Intl. to Yellowstone Regional, returning Tue, Sep 9, priced at $682 found 1 day ago
Sat, Sep 6 - Tue, Sep 9
DEN
Denver Intl.
COD
Yellowstone Regional
$739 Roundtrip, found 1 day ago
$739
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 6 from Denver Intl. to Yellowstone Regional, returning Tue, Sep 9, priced at $739 found 1 day ago
Wed, Sep 10 - Sat, Sep 13
DEN
Denver Intl.
COD
Yellowstone Regional
$800 Roundtrip, found 1 day ago
$800
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 10 from Denver Intl. to Yellowstone Regional, returning Sat, Sep 13, priced at $800 found 1 day ago
Tue, Sep 9 - Sat, Sep 13
DEN
Denver Intl.
COD
Yellowstone Regional
$815 Roundtrip, found 1 day ago
$815
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 9 from Denver Intl. to Yellowstone Regional, returning Sat, Sep 13, priced at $815 found 1 day ago

Frequently asked questions

What route does flight number UA5128 take?
Flight number UA5128 takes about 1 hour and 15 minutes to fly directly from Southwest Wyoming Regional Airport to DIA airport. We all know there's magic in the destination, but the journey is always half the fun!
What kind of plane is on flight number UA5128?
The Bombardier CRJ is the kind of plane predominantly used for flight UA5128. More often than not, this flight takes off from Sweetwater County Airport (RKS) and comes in to land at Denver, CO Airport (DEN-Denver 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 UA5128 flight with Travelocity, please visit our Customer Service Portal.