Airport route guide

Upgrade & Award Space from Sergeant Bluff (SUX)

Sioux Gateway Airport (SUX) is a small station in Sergeant Bluff, US with nonstop service to 2 destinations, served by United Airlines. Because the schedule is limited, an upgrade or award opening on a Denver flight rarely lasts. 2LNR checks every SUX nonstop for confirmed availability, so a rare opening doesn't go unnoticed.

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

Explore Sergeant Bluff routes on the interactive map Get started free
2
Nonstop destinations
30+
Airlines in award search
Free
To get started

Confirmed upgrade & award space on every SUX route

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Pick any Sergeant Bluff destination below to open a calendar of departures with real availability, or watch a route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each SUX route, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch a Sergeant Bluff route and 2LNR notifies you when space appears.

Plan on the map

Explore every SUX nonstop on the interactive route map, with connections and route statistics.

All nonstop destinations from Sergeant Bluff (SUX)

2 nonstop destinations with active service from Sioux Gateway Airport. Each route links to its confirmed upgrade and award availability.

Explore SUX routes on the interactive map →

Frequently asked questions about Sergeant Bluff (SUX)

How many nonstop destinations does Sioux Gateway Airport (SUX) serve?
Sioux Gateway Airport has active nonstop service to 2 destinations. The busiest markets from SUX are Denver and Chicago. The full list, with live upgrade and award availability for each route, is on this page.
Which airlines fly upgrade-trackable routes from SUX?
United Airlines operate the most tracked routes from Sergeant Bluff. 2LNR covers upgrade and award space on more than 30 airlines, so other carriers serving SUX appear on their routes as well.
How do I check upgrade or award availability from SUX?
Pick any destination on this page, such as Denver, to open a calendar of SUX departures with confirmed upgrade and award space, date by date. You can also set an alert so 2LNR notifies you when space opens on a route you care about.
Does 2LNR track flights from SUX?
Yes. Every active nonstop route from Sioux Gateway Airport is tracked, 2 destinations in total, and what's shown is confirmed availability rather than a forecast. It's free to start.

Never miss SUX upgrade or award space

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

Get started free