United Flight WN5559 Deals & Information (2025/2026)

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United Flight 5559 Route Deals From $101

The cheapest prices found with in the last 7 days for return flights were $268 and $101 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 1 - Sun, Aug 3
HDN
Yampa Valley
DEN
Denver Intl.
$268 Roundtrip, found 16 hours ago
$268
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Aug 1 from Yampa Valley to Denver Intl., returning Sun, Aug 3, priced at $268 found 16 hours ago
Fri, Aug 1 - Sun, Aug 3
HDN
Yampa Valley
DEN
Denver Intl.
$299 Roundtrip, found 16 hours ago
$299
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Aug 1 from Yampa Valley to Denver Intl., returning Sun, Aug 3, priced at $299 found 16 hours ago
Fri, Aug 1 - Sun, Aug 3
HDN
Yampa Valley
DEN
Denver Intl.
$329 Roundtrip, found 16 hours ago
$329
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Aug 1 from Yampa Valley to Denver Intl., returning Sun, Aug 3, priced at $329 found 16 hours ago
Fri, Aug 1 - Sun, Aug 3
HDN
Yampa Valley
DEN
Denver Intl.
$342 Roundtrip, found 16 hours ago
$342
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Aug 1 from Yampa Valley to Denver Intl., returning Sun, Aug 3, priced at $342 found 16 hours ago
Fri, Aug 1 - Sun, Aug 3
HDN
Yampa Valley
DEN
Denver Intl.
$350 Roundtrip, found 16 hours ago
$350
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Aug 1 from Yampa Valley to Denver Intl., returning Sun, Aug 3, priced at $350 found 16 hours ago
Fri, Aug 1 - Sun, Aug 3
HDN
Yampa Valley
DEN
Denver Intl.
$415 Roundtrip, found 16 hours ago
$415
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Aug 1 from Yampa Valley to Denver Intl., returning Sun, Aug 3, priced at $415 found 16 hours ago
Fri, Aug 1 - Sun, Aug 3
HDN
Yampa Valley
DEN
Denver Intl.
$432 Roundtrip, found 16 hours ago
$432
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Aug 1 from Yampa Valley to Denver Intl., returning Sun, Aug 3, priced at $432 found 16 hours ago
Thu, Jul 17 - Tue, Aug 19
HDN
Yampa Valley
DEN
Denver Intl.
$446 Roundtrip, found 20 hours ago
$446
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Jul 17 from Yampa Valley to Denver Intl., returning Tue, Aug 19, priced at $446 found 20 hours ago
Thu, Jul 17 - Tue, Aug 19
HDN
Yampa Valley
DEN
Denver Intl.
$468 Roundtrip, found 20 hours ago
$468
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Jul 17 from Yampa Valley to Denver Intl., returning Tue, Aug 19, priced at $468 found 20 hours ago
Wed, Jun 25 - Sun, Jun 29
HDN
Yampa Valley
DEN
Denver Intl.
$535 Roundtrip, found 5 days ago
$535
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jun 25 from Yampa Valley to Denver Intl., returning Sun, Jun 29, priced at $535 found 5 days ago

Frequently asked questions

What route does flight number UA5559 take?
UA5559 is used on multiple routes, but the most common is between Denver Intl. Airport (DEN) and Sun Valley, ID Airport (SUN-Friedman Memorial). If you're lucky enough to score a direct flight, you'll disembark the plane in approximately 1 hour and 55 minutes. Multi-stop flights can also travel under the same number, as can flights on other routes.
What kind of plane is on flight number UA5559?
It's more than likely you'll be climbing aboard an Embraer 175 if you've reserved a ticket on flight UA5559 from DIA airport to SUN. It's the most commonly used aircraft model on this route.
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 UA5559 flight with Travelocity, please visit our Customer Service Portal.