Chicago to South Portland Gardens (ORD-PWM): nonstop upgrade & award space

United Airlines and American Airlines fly nonstop between Chicago (ORD) and South Portland Gardens (PWM), roughly 32 times a week. The timetable below shows the nonstop scheduled at 2h 26m to 2h 46m for the 898 miles. 2LNR checks confirmed upgrade and award space on American Airlines flights on this route, so you can see which departures have space before you book.

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

Updated .

See ORD to PWM on the interactive map Get started free
32
Flights a week, 4-week average
2h 26m to 2h 46m
Scheduled flight time
898 mi
Nonstop distance
Free
To get started

Chicago to South Portland Gardens flight schedule

Scheduled nonstop departures for ORD to PWM starting October 28, 2026, last checked against our schedule feed on October 25, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Chicago (ORD) to South Portland Gardens (PWM)
Date Flight Airline Departs ORD Arrives PWM Duration Aircraft
AA 4741American Airlines08:4512:312h 46mEmbraer E175
UA 422United Airlines10:5014:162h 26mBoeing 737-800
AA 4478American Airlines13:2917:042h 35mEmbraer E175
UA 1401United Airlines18:1821:512h 33mBoeing 737-700
AA 4504American Airlines20:0023:402h 40mEmbraer E175
AA 4741American Airlines08:2512:112h 46mEmbraer E175
UA 422United Airlines10:5014:162h 26mBoeing 737-800
AA 4478American Airlines13:2917:042h 35mEmbraer E175
UA 1401United Airlines18:1821:512h 33mBoeing 737-700
AA 4504American Airlines20:0023:402h 40mEmbraer E175
AA 4741American Airlines08:2512:112h 46mEmbraer E175
UA 422United Airlines10:5014:162h 26mBoeing 737-800
AA 4478American Airlines13:2917:042h 35mEmbraer E175
UA 1401United Airlines18:1021:462h 36mBoeing 737 MAX 9
AA 4504American Airlines20:0023:402h 40mEmbraer E175
AA 4741American Airlines08:2512:112h 46mEmbraer E175
UA 422United Airlines10:5014:162h 26mBoeing 737-800
AA 4478American Airlines13:4417:152h 31mEmbraer E175
UA 1401United Airlines18:1021:462h 36mBoeing 737 MAX 9
AA 4504American Airlines18:3022:052h 35mEmbraer E175
AA 4741American Airlines08:2511:532h 28mEmbraer E175
UA 422United Airlines10:5014:162h 26mBoeing 737-800
UA 1401United Airlines18:1021:462h 36mBoeing 737 MAX 9
AA 4741American Airlines08:2511:532h 28mEmbraer E175
UA 422United Airlines10:5014:162h 26mBoeing 737-800
UA 1401United Airlines18:1021:462h 36mBoeing 737 MAX 9
AA 4741American Airlines08:0011:282h 28mEmbraer E175
UA 422United Airlines10:5014:162h 26mBoeing 737-800
UA 1401United Airlines18:1821:512h 33mBoeing 737-700
UA 2761United Airlines18:1821:512h 33mBoeing 737-700

Showing all 30 scheduled ORD to PWM departures across 7 days with service, starting October 28, 2026. Later dates are 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 hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every ORD to PWM date on the interactive map

Aircraft on the Chicago to South Portland Gardens nonstop

In the schedule table on this page, American Airlines flies the Embraer E175, and United Airlines flies the Boeing 737-800, the Boeing 737-700, and the Boeing 737 MAX 9. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on ORD to PWM departures

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

American Airlines award space was open on 6 of the 14 Chicago to South Portland Gardens departure dates from October 26 to November 8 that 2LNR checked in the 7 days to October 26, 2026.

See real availability

Confirmed upgrade or award seats by date on the ORD to PWM departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

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

Plan on the map

See ORD to PWM on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Chicago to South Portland Gardens nonstop

Carriers operating ORD to PWM nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See ORD to PWM on the interactive map →

Frequently asked questions about ORD to PWM

How long is the flight from Chicago (ORD) to South Portland Gardens (PWM)?
Scheduled flight times from Chicago (ORD) to South Portland Gardens (PWM) run from 2h 26m to 2h 46m across the departures in the schedule table on this page. The nonstop covers about 898 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from ORD to PWM?
United Airlines and American Airlines fly ORD to PWM nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.
How many flights a week are there from ORD to PWM?
About 32 nonstop flights a week run between Chicago (ORD) and South Portland Gardens (PWM) 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 ORD to PWM depart?
Scheduled ORD to PWM nonstops in the next 7 days with service leave between 08:00 and 20:00, local time at Chicago. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate ORD to PWM nonstop?
In the schedule table on this page, ORD to PWM nonstops fly as AA 4478, AA 4504, and AA 4741 on American Airlines, and UA 422, UA 1401, and UA 2761 on United Airlines. The table lists each departure by date with its times and aircraft.
How do I check upgrade or award availability on ORD to PWM?
Open the ORD to PWM 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 ORD to PWM upgrade or award space

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

Get started free