Route guide

South Portland Gardens to Baltimore (PWM-BWI): Nonstop Upgrade & Award Space

Southwest Airlines flies the PWM to BWI nonstop about 8 times a week. That's enough service to give you a real choice of departures, though premium seats don't sit unclaimed for long. 2LNR watches every PWM to BWI departure for confirmed upgrade and award space and can alert you when a date you're tracking opens up.

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

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8
Nonstop flights a week
451 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every PWM to BWI 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 South Portland Gardens to Baltimore 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 PWM to BWI 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 PWM to BWI on the interactive route map, with schedules, connections, and route statistics.

Airlines flying South Portland Gardens to Baltimore nonstop

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

  • Southwest Airlines
See PWM to BWI on the interactive map →

Frequently asked questions about PWM to BWI

How far is Baltimore from South Portland Gardens?
PWM to BWI covers about 451 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from PWM to BWI?
Southwest Airlines is currently the only airline flying PWM to BWI nonstop. 2LNR tracks confirmed upgrade and award space on every Southwest Airlines departure.
How many flights a week are there from PWM to BWI?
About 8 nonstop flights a week run between South Portland Gardens and Baltimore in the current schedule, operated by Southwest Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on PWM to BWI?
Open the PWM to BWI calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the South Portland Gardens to Baltimore route, and 2LNR will notify you when space opens. It's free to start.

Never miss PWM to BWI upgrade or award space

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

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