United Flight 5128 Deals & Information (2025/2026)

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United Flight 5128 Route Deals From

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

Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$201 Roundtrip, found 1 hour ago
$201
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $201 found 1 hour ago
Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$222 Roundtrip, found 1 hour ago
$222
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $222 found 1 hour ago
Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$252 Roundtrip, found 1 hour ago
$252
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $252 found 1 hour ago
Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$272 Roundtrip, found 1 hour ago
$272
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $272 found 1 hour ago
Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$276 Roundtrip, found 22 hours ago
$276
Roundtrip
found 22 hours ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $276 found 22 hours ago
Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$318 Roundtrip, found 22 hours ago
$318
Roundtrip
found 22 hours ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $318 found 22 hours ago
Mon, Aug 18 - Fri, Aug 22
DEN
Denver Intl.
COD
Yellowstone Regional
$375 Roundtrip, found 4 days ago
$375
Roundtrip
found 4 days ago
Select United flight, departing Mon, Aug 18 from Denver Intl. to Yellowstone Regional, returning Fri, Aug 22, priced at $375 found 4 days ago
Wed, Jul 23 - Thu, Jul 24
DEN
Denver Intl.
COD
Yellowstone Regional
$382 Roundtrip, found 2 days ago
$382
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 23 from Denver Intl. to Yellowstone Regional, returning Thu, Jul 24, priced at $382 found 2 days ago
Fri, Jul 18 - Mon, Jul 21
DEN
Denver Intl.
COD
Yellowstone Regional
$392 Roundtrip, found 4 days ago
$392
Roundtrip
found 4 days ago
Select United flight, departing Fri, Jul 18 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 21, priced at $392 found 4 days ago
Fri, Jul 18 - Mon, Jul 21
DEN
Denver Intl.
COD
Yellowstone Regional
$396 Roundtrip, found 4 days ago
$396
Roundtrip
found 4 days ago
Select United flight, departing Fri, Jul 18 from Denver Intl. to Yellowstone Regional, returning Mon, Jul 21, priced at $396 found 4 days ago
Mon, Jun 30 - Tue, Jul 1
DEN
Denver Intl.
COD
Yellowstone Regional
$399 Roundtrip, found 4 days ago
$399
Roundtrip
found 4 days ago
Select United flight, departing Mon, Jun 30 from Denver Intl. to Yellowstone Regional, returning Tue, Jul 1, priced at $399 found 4 days ago
Thu, Jul 3 - Sat, Jul 12
DEN
Denver Intl.
COD
Yellowstone Regional
$405 Roundtrip, found 5 days ago
$405
Roundtrip
found 5 days ago
Select United flight, departing Thu, Jul 3 from Denver Intl. to Yellowstone Regional, returning Sat, Jul 12, priced at $405 found 5 days ago
Wed, Jul 23 - Thu, Jul 24
DEN
Denver Intl.
COD
Yellowstone Regional
$423 Roundtrip, found 2 days ago
$423
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 23 from Denver Intl. to Yellowstone Regional, returning Thu, Jul 24, priced at $423 found 2 days ago
Fri, Jul 4 - Tue, Jul 8
DEN
Denver Intl.
COD
Yellowstone Regional
$431 Roundtrip, found 5 hours ago
$431
Roundtrip
found 5 hours ago
Select United flight, departing Fri, Jul 4 from Denver Intl. to Yellowstone Regional, returning Tue, Jul 8, priced at $431 found 5 hours ago
Fri, Aug 8 - Mon, Aug 11
DEN
Denver Intl.
COD
Yellowstone Regional
$444 Roundtrip, found 5 hours ago
$444
Roundtrip
found 5 hours ago
Select United flight, departing Fri, Aug 8 from Denver Intl. to Yellowstone Regional, returning Mon, Aug 11, priced at $444 found 5 hours ago
Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$446 Roundtrip, found 1 hour ago
$446
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $446 found 1 hour ago
Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$447 Roundtrip, found 2 days ago
$447
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $447 found 2 days ago
Mon, Aug 18 - Fri, Aug 22
DEN
Denver Intl.
COD
Yellowstone Regional
$460 Roundtrip, found 4 days ago
$460
Roundtrip
found 4 days ago
Select United flight, departing Mon, Aug 18 from Denver Intl. to Yellowstone Regional, returning Fri, Aug 22, priced at $460 found 4 days ago
Thu, Jul 17 - Sun, Jul 20
DEN
Denver Intl.
COD
Yellowstone Regional
$477 Roundtrip, found 6 days ago
$477
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 17 from Denver Intl. to Yellowstone Regional, returning Sun, Jul 20, priced at $477 found 6 days ago
Mon, Aug 18 - Fri, Aug 22
DEN
Denver Intl.
COD
Yellowstone Regional
$485 Roundtrip, found 4 days ago
$485
Roundtrip
found 4 days ago
Select United flight, departing Mon, Aug 18 from Denver Intl. to Yellowstone Regional, returning Fri, Aug 22, priced at $485 found 4 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.