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

American Airlines flies the STL to BOS nonstop about 11 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 STL to BOS 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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11
Nonstop flights a week
1,044 mi
Nonstop distance
Free
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St. Louis to Boston flight schedule

Scheduled nonstop departures for STL to BOS, 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 St. Louis (STL) to Boston (BOS)
Date Flight Airline Departs STL Arrives BOS Duration Aircraft
AA 3546American Airlines08:5412:402h 46mE75
AA 4727American Airlines18:0021:472h 47mE75
AA 3546American Airlines08:5412:402h 46mE75
AA 4727American Airlines18:0021:472h 47mE75
AA 3546American Airlines08:5412:402h 46mE75
AA 4727American Airlines18:0021:472h 47mE75
AA 4727American Airlines14:3518:222h 47mE75
AA 3546American Airlines08:5412:402h 46mE75
AA 4727American Airlines18:0021:472h 47mE75
AA 3546American Airlines08:5412:402h 46mE75
AA 4727American Airlines18:0021:472h 47mE75
AA 3546American Airlines08:5412:402h 46mE75
AA 4727American Airlines18:0021:472h 47mE75

Showing all 13 scheduled STL to BOS 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 STL to BOS date on the interactive map

Confirmed upgrade & award space on STL to BOS departures

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

Airlines flying St. Louis to Boston nonstop

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

See STL to BOS on the interactive map →

Frequently asked questions about STL to BOS

How far is Boston from St. Louis?
STL to BOS 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 STL to BOS?
American Airlines is currently the only airline flying STL to BOS nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.
How many flights a week are there from STL to BOS?
About 11 nonstop flights a week run between St. Louis and Boston 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 STL to BOS depart?
Scheduled STL to BOS nonstops in the next 7 days with service leave between 08:54 and 18:00, local time at St. Louis. 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 STL to BOS?
Open the STL to BOS 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 STL to BOS 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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