Route guide

Hailey to Denver (SUN-DEN): Nonstop Upgrade & Award Space

United Airlines flies the SUN to DEN nonstop about 12 times a week. That's enough service to give you a real choice of departures, though premium seats don't sit unclaimed for long. 2LNR watches every SUN to DEN departure for confirmed upgrade and award space and can alert you when a date you're tracking opens up.

Data current as of July 22, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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12
Nonstop flights a week
556 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every SUN to DEN departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Hailey to Denver to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each SUN to DEN departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See SUN to DEN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Hailey to Denver nonstop

Carriers operating SUN to DEN nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • United Airlines
See SUN to DEN on the interactive map →

Frequently asked questions about SUN to DEN

How far is Denver from Hailey?
SUN to DEN covers about 556 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from SUN to DEN?
United Airlines is currently the only airline flying SUN to DEN nonstop. 2LNR tracks confirmed upgrade and award space on every United Airlines departure.
How many flights a week are there from SUN to DEN?
About 12 nonstop flights a week run between Hailey and Denver in the current schedule, operated by United Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on SUN to DEN?
Open the SUN to DEN calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Hailey to Denver route, and 2LNR will notify you when space opens. It's free to start.

Never miss SUN to DEN upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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