Boston to St. Louis (BOS-STL): nonstop upgrade & award space

American Airlines flies the BOS to STL nonstop about 13 times a week. American Airlines sets the rhythm here, a few flights a day with a small premium cabin on each, so a date with open space is worth acting on the day you see it. 2LNR tracks confirmed upgrade and award space on American Airlines, on every BOS to STL 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.

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13
Nonstop flights a week
1,044 mi
Nonstop distance
Free
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Boston to St. Louis flight schedule

Scheduled nonstop departures for BOS to STL, 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 Boston (BOS) to St. Louis (STL)
Date Flight Airline Departs BOS Arrives STL Duration Aircraft
AA 3546American Airlines07:0909:133h 4mE75
AA 4678American Airlines17:2219:303h 8mE75
AA 3546American Airlines06:2008:203hE75
AA 4727American Airlines15:2117:243h 3mE75
AA 3546American Airlines06:2008:203hE75
AA 4727American Airlines15:2117:243h 3mE75
AA 3546American Airlines06:2008:203hE75
AA 4727American Airlines15:2117:243h 3mE75
AA 4727American Airlines11:0013:033h 3mE75
AA 3546American Airlines06:2008:203hE75
AA 4727American Airlines15:2117:243h 3mE75
AA 3546American Airlines06:2008:203hE75
AA 4727American Airlines15:2117:243h 3mE75

Showing all 13 scheduled BOS to STL departures across the next 7 days with service. 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 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 BOS to STL date on the interactive map

Confirmed upgrade & award space on BOS to STL departures

2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Boston to St. Louis 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 BOS to STL 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 BOS to STL on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Boston to St. Louis nonstop

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

See BOS to STL on the interactive map →

Frequently asked questions about BOS to STL

How far is St. Louis from Boston?
BOS to STL covers about 1,044 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 BOS to STL?
American Airlines is currently the only airline flying BOS to STL nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.
How many flights a week are there from BOS to STL?
About 13 nonstop flights a week run between Boston and St. Louis in the current schedule, operated by American Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from BOS to STL depart?
Scheduled BOS to STL nonstops in the next 7 days with service leave between 06:20 and 17:22, local time at Boston. 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 BOS to STL?
Open the BOS to STL 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 BOS to STL 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.

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