Airport route guide

Upgrade & Award Space from Ashwaubenon (GRB)

Austin Straubel International Airport (GRB) is a small station in Ashwaubenon, US with nonstop service to 6 destinations, served by Delta Air Lines, American Airlines, and United Airlines. Because the schedule is limited, an upgrade or award opening on a Chicago flight rarely lasts. 2LNR checks every GRB 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.

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Nonstop destinations

30+

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Confirmed upgrade & award space on every GRB 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 Ashwaubenon 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 GRB route, checked against live inventory so you know what is open before you book.

Set an alert

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

Plan on the map

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

All nonstop destinations from Ashwaubenon (GRB)

6 nonstop destinations with active service from Austin Straubel International Airport. Each route links to its confirmed upgrade and award availability.

Explore GRB routes on the interactive map →

Frequently asked questions about Ashwaubenon (GRB)

How many nonstop destinations does Austin Straubel International Airport (GRB) serve?

Austin Straubel International Airport has active nonstop service to 6 destinations. The busiest markets from GRB are Chicago, Detroit, and Minneapolis. The full list, with live upgrade and award availability for each route, is on this page.

Which airlines fly upgrade-trackable routes from GRB?

Delta Air Lines, American Airlines, and United Airlines operate the most tracked routes from Ashwaubenon, in that order. 2LNR covers upgrade and award space on more than 30 airlines, so other carriers serving GRB appear on their routes as well.

How do I check upgrade or award availability from GRB?

Pick any destination on this page, such as Chicago, to open a calendar of GRB 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 GRB?

Yes. Every active nonstop route from Austin Straubel International Airport is tracked, 6 destinations in total, and what's shown is confirmed availability rather than a forecast. It's free to start.

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