Boston to Louisville (BOS-SDF): nonstop upgrade & award space

American Airlines and Delta Air Lines fly nonstop between Boston (BOS) and Louisville (SDF), roughly 14 times a week. With this many departures on a short sector, premium cabins are small and turn over daily, so upgrade or award space opens and closes within hours. 2LNR tracks confirmed upgrade and award space on American Airlines and Delta Air Lines, on every BOS to SDF 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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14
Nonstop flights a week
827 mi
Nonstop distance
Free
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Boston to Louisville flight schedule

Scheduled nonstop departures for BOS to SDF, 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 Louisville (SDF)
Date Flight Airline Departs BOS Arrives SDF Duration Aircraft
DL 5615Delta Air Lines09:2511:592h 34mE75
AA 4110American Airlines14:0316:402h 37mE75
DL 5615Delta Air Lines09:2511:592h 34mE75
AA 4362American Airlines13:1715:532h 36mE75
DL 5615Delta Air Lines09:2511:592h 34mE75
AA 4362American Airlines13:1715:532h 36mE75
DL 5615Delta Air Lines09:2511:592h 34mE75
AA 4362American Airlines13:1715:532h 36mE75
DL 5615Delta Air Lines12:3015:092h 39mE75
DL 5615Delta Air Lines09:3012:102h 40mE75
AA 4362American Airlines13:1715:532h 36mE75
DL 5615Delta Air Lines09:3012:072h 37mE75
AA 4362American Airlines13:1715:532h 36mE75

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

Confirmed upgrade & award space on BOS to SDF departures

2LNR tracks confirmed upgrade and award space on American Airlines and Delta Air Lines, segment by segment and date by date. Open the calendar for Boston to Louisville 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 SDF 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 SDF on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Boston to Louisville nonstop

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

See BOS to SDF on the interactive map →

Frequently asked questions about BOS to SDF

How far is Louisville from Boston?
BOS to SDF covers about 827 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 SDF?
American Airlines and Delta Air Lines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines and Delta Air Lines.
How many flights a week are there from BOS to SDF?
About 14 nonstop flights a week run between Boston and Louisville in the current schedule, operated by American Airlines and Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from BOS to SDF depart?
Scheduled BOS to SDF nonstops in the next 7 days with service leave between 09:25 and 14:03, 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 SDF?
Open the BOS to SDF route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines and Delta Air Lines, 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 SDF 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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