Boston (BOS) to Louisville (SDF) flights: who flies it

Boston to Louisville flight schedule

Scheduled nonstop departures for BOS to SDF starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Boston (BOS) to Louisville (SDF)
Date	Flight	Airline	Departs BOS	Arrives SDF	Duration	Aircraft
Fri, Oct 23	DL 5615	Delta Air Lines	09:45	12:27	2h 42m	Embraer E175
Fri, Oct 23	AA 3961	American Airlines	14:57	17:38	2h 41m	Embraer E175
Sat, Oct 24	DL 5615	Delta Air Lines	11:15	13:54	2h 39m	Embraer E175
Sat, Oct 24	AA 3585	American Airlines	11:18	14:00	2h 42m	Embraer E175
Sun, Oct 25	DL 5615	Delta Air Lines	12:13	14:53	2h 40m	Embraer E175
Sun, Oct 25	AA 3961	American Airlines	14:57	17:38	2h 41m	Embraer E175
Mon, Oct 26	DL 5615	Delta Air Lines	09:45	12:27	2h 42m	Embraer E175
Mon, Oct 26	AA 3961	American Airlines	14:57	17:38	2h 41m	Embraer E175
Tue, Oct 27	DL 5615	Delta Air Lines	09:45	12:27	2h 42m	Embraer E175
Tue, Oct 27	AA 3961	American Airlines	14:57	17:38	2h 41m	Embraer E175
Wed, Oct 28	DL 5615	Delta Air Lines	09:45	12:27	2h 42m	Embraer E175
Wed, Oct 28	AA 3961	American Airlines	14:57	17:38	2h 41m	Embraer E175
Thu, Oct 29	DL 5615	Delta Air Lines	09:45	12:27	2h 42m	Embraer E175
Thu, Oct 29	AA 3961	American Airlines	14:57	17:38	2h 41m	Embraer E175

Showing all 14 scheduled BOS to SDF departures across 7 days with service, starting October 23, 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 BOS to SDF date on the interactive map

Aircraft on the Boston to Louisville nonstop

In the schedule table on this page, Delta Air Lines flies the Embraer E175, and American Airlines flies the Embraer E175. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

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.

In the 7 days to October 19, 2026, 2LNR checked award space on Boston to Louisville departures from October 19 to November 1. American Airlines had space open on 9 of 14 dates checked and Delta Air Lines on 10 of 13.

See real availability

Confirmed upgrade or award seats by date on the BOS to SDF 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 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. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See BOS to SDF on the interactive map →

Frequently asked questions about BOS to SDF

How long is the flight from Boston (BOS) to Louisville (SDF)?

Scheduled flight times from Boston (BOS) to Louisville (SDF) run from 2h 39m to 2h 42m across the departures in the schedule table on this page. The nonstop covers about 827 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from BOS to SDF?

American Airlines and Delta Air Lines fly BOS to SDF 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 17 nonstop flights a week run between Boston (BOS) and Louisville (SDF) 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 09:45 and 14:57, local time at Boston. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate BOS to SDF nonstop?

In the schedule table on this page, BOS to SDF nonstops fly as AA 3585 and AA 3961 on American Airlines, and DL 5615 on Delta Air Lines. The table lists each departure by date with its times 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.