Route guide

Coxen Hole to Denver (RTB-DEN): Nonstop Upgrade & Award Space

United Airlines flies nonstop from Coxen Hole (RTB) to Denver (DEN) just once a week. With so few departures, each one carries the only premium seats on the route that day. 2LNR tracks confirmed upgrade and award space on all of them, so a rare opening doesn't slip past you.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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1
Nonstop flights a week
1,959 mi
Nonstop distance
Free
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Confirmed upgrade & award space on every RTB 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 Coxen Hole 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 RTB 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 RTB to DEN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Coxen Hole to Denver nonstop

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

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

Frequently asked questions about RTB to DEN

How far is Denver from Coxen Hole?
RTB to DEN covers about 1,959 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from RTB to DEN?
United Airlines is currently the only airline flying RTB to DEN nonstop. 2LNR tracks confirmed upgrade and award space on every United Airlines departure.
How often does RTB to DEN operate?
The nonstop currently runs once a week, on United Airlines. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on RTB to DEN?
Open the RTB to DEN calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Coxen Hole to Denver route, and 2LNR will notify you when space opens. It's free to start.

Never miss RTB 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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