Green Bay to Chicago (GRB-ORD): nonstop upgrade & award space

United Airlines and American Airlines fly nonstop between Green Bay (GRB) and Chicago (ORD), roughly 118 times a week. With United Airlines running most of the schedule, the shape of a week is predictable, which makes an open premium seat on a given date easy to spot and quick to lose. 2LNR tracks confirmed upgrade and award space on American Airlines, on every GRB to ORD departure, so you know which flights have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

See GRB to ORD on the interactive map Get started free
118
Nonstop flights a week
173 mi
Nonstop distance
Free
To get started

Green Bay to Chicago flight schedule

Scheduled nonstop departures for GRB to ORD, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Green Bay (GRB) to Chicago (ORD)
Date Flight Airline Departs GRB Arrives ORD Duration Aircraft
AA 4121American Airlines05:5507:201h 25mE75
UA 4707United Airlines06:2507:491h 24mE7W
UA 4185United Airlines08:0509:331h 28mCR5
UA 5275United Airlines09:1410:391h 25mCR5
UA 4808United Airlines10:3212:001h 28mCR2
UA 4772United Airlines11:4513:131h 28mCRJ
AA 3918American Airlines12:2613:491h 23mE75
UA 4689United Airlines13:1714:431h 26mCR2
UA 4782United Airlines14:3115:541h 23mCR5
AA 4156American Airlines15:2016:441h 24mE75
UA 4609United Airlines15:4217:051h 23mCR5
UA 5234United Airlines17:0518:301h 25mCR5
UA 5280United Airlines17:0518:301h 25mCR5
UA 4573United Airlines17:2918:541h 25mCR5
AA 3448American Airlines19:0220:401h 38mE75
AA 4121American Airlines05:4307:151h 32mE75
UA 5902United Airlines06:0607:301h 24mCR5
UA 4707United Airlines06:3407:581h 24mE7W
UA 4185United Airlines08:0009:281h 28mCR5
UA 5327United Airlines08:0009:281h 28mCR5
UA 5275United Airlines09:1410:391h 25mCR5
UA 5317United Airlines09:3411:001h 26mCR2
AA 3918American Airlines10:0511:261h 21mE70
UA 4808United Airlines10:3111:591h 28mCR2
UA 4772United Airlines11:4513:131h 28mCRJ
UA 4689United Airlines13:1714:431h 26mCR2
UA 4782United Airlines14:3115:541h 23mCR5
UA 4609United Airlines15:4217:051h 23mCR5
UA 5234United Airlines15:4217:051h 23mCR5
AA 4156American Airlines16:0417:321h 28mE75
UA 4574United Airlines17:0518:301h 25mCR5
UA 4603United Airlines17:0518:301h 25mCR5
UA 5280United Airlines17:0518:301h 25mCR5
UA 4573United Airlines17:2918:541h 25mCR5
AA 3448American Airlines20:2722:001h 33mE75
AA 4121American Airlines05:4307:151h 32mE75
UA 4707United Airlines06:2507:491h 24mE7W
UA 4185United Airlines08:0509:331h 28mCR5
UA 5327United Airlines08:0509:331h 28mCR5
UA 5317United Airlines09:0310:291h 26mCRJ

Showing the first 40 of 114 scheduled GRB to ORD departures across the next 7 days with service. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every GRB to ORD date on the interactive map

Confirmed upgrade & award space on GRB to ORD departures

2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Green Bay to Chicago to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each GRB to ORD 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 GRB to ORD on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Green Bay to Chicago nonstop

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

See GRB to ORD on the interactive map →

Frequently asked questions about GRB to ORD

How far is Chicago from Green Bay?
GRB to ORD covers about 173 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from GRB to ORD?
United Airlines and American Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.
How many flights a week are there from GRB to ORD?
About 118 nonstop flights a week run between Green Bay and Chicago in the current schedule, operated by United Airlines and American Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from GRB to ORD depart?
Scheduled GRB to ORD nonstops in the next 7 days with service leave between 05:43 and 20:27, local time at Green Bay. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
How do I check upgrade or award availability on GRB to ORD?
Open the GRB to ORD route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss GRB to ORD upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

Get started free