United Flight UA5128 Deals & Information (2025/2026)

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United Flight 5128 Route Deals From $240

The cheapest prices found with in the last 7 days for return flights were $228 and $240 for one-way flights to Yellowstone Regional for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 8 - Mon, Jul 14
DEN
Denver Intl.
COD
Yellowstone Regional
$228 Roundtrip, found 6 days ago
$228
Roundtrip
found 6 days ago
Select United flight, departing Tue, Jul 8 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 14, priced at $228 found 6 days ago
Fri, Jul 18 - Mon, Jul 21
DEN
Denver Intl.
COD
Yellowstone Regional
$248 Roundtrip, found 11 hours ago
$248
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Jul 18 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 21, priced at $248 found 11 hours ago
Tue, Jul 8 - Mon, Jul 14
DEN
Denver Intl.
COD
Yellowstone Regional
$249 Roundtrip, found 6 days ago
$249
Roundtrip
found 6 days ago
Select United flight, departing Tue, Jul 8 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 14, priced at $249 found 6 days ago
Thu, Jun 19 - Sun, Jun 22
DEN
Denver Intl.
COD
Yellowstone Regional
$251 Roundtrip, found 5 days ago
$251
Roundtrip
found 5 days ago
Select United flight, departing Thu, Jun 19 from Denver Intl. to Yellowstone Regional, returning Sun, Jun 22, priced at $251 found 5 days ago
Fri, Jul 18 - Mon, Jul 21
DEN
Denver Intl.
COD
Yellowstone Regional
$273 Roundtrip, found 11 hours ago
$273
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Jul 18 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 21, priced at $273 found 11 hours ago
Tue, Jul 8 - Mon, Jul 14
DEN
Denver Intl.
COD
Yellowstone Regional
$279 Roundtrip, found 6 days ago
$279
Roundtrip
found 6 days ago
Select United flight, departing Tue, Jul 8 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 14, priced at $279 found 6 days ago
Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$317 Roundtrip, found 1 day ago
$317
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $317 found 1 day ago
Wed, Sep 3 - Tue, Sep 9
DEN
Denver Intl.
COD
Yellowstone Regional
$324 Roundtrip, found 3 days ago
$324
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 3 from Denver Intl. to Yellowstone Regional, returning Tue, Sep 9, priced at $324 found 3 days ago
Tue, Jul 8 - Mon, Jul 14
DEN
Denver Intl.
COD
Yellowstone Regional
$345 Roundtrip, found 6 days ago
$345
Roundtrip
found 6 days ago
Select United flight, departing Tue, Jul 8 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 14, priced at $345 found 6 days ago
Fri, Jul 18 - Mon, Jul 21
DEN
Denver Intl.
COD
Yellowstone Regional
$346 Roundtrip, found 11 hours ago
$346
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Jul 18 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 21, priced at $346 found 11 hours ago
Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$361 Roundtrip, found 1 day ago
$361
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $361 found 1 day ago
Tue, Jul 8 - Mon, Jul 14
DEN
Denver Intl.
COD
Yellowstone Regional
$370 Roundtrip, found 6 days ago
$370
Roundtrip
found 6 days ago
Select United flight, departing Tue, Jul 8 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 14, priced at $370 found 6 days ago
Mon, Sep 15 - Fri, Sep 19
DEN
Denver Intl.
COD
Yellowstone Regional
$375 Roundtrip, found 2 days ago
$375
Roundtrip
found 2 days ago
Select United flight, departing Mon, Sep 15 from Denver Intl. to Yellowstone Regional, returning Fri, Sep 19, priced at $375 found 2 days ago
Fri, Jul 11 - Mon, Jul 14
DEN
Denver Intl.
COD
Yellowstone Regional
$380 Roundtrip, found 11 hours ago
$380
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Jul 11 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 14, priced at $380 found 11 hours ago
Tue, Jul 8 - Mon, Jul 14
DEN
Denver Intl.
COD
Yellowstone Regional
$388 Roundtrip, found 6 days ago
$388
Roundtrip
found 6 days ago
Select United flight, departing Tue, Jul 8 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 14, priced at $388 found 6 days 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.