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

Louisville to Boston flight schedule

Scheduled nonstop departures for SDF to BOS 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 Louisville (SDF) to Boston (BOS)
Date	Flight	Airline	Departs SDF	Arrives BOS	Duration	Aircraft
Fri, Oct 23	DL 5615	Delta Air Lines	13:20	15:57	2h 37m	Embraer E175
Fri, Oct 23	AA 4685	American Airlines	17:00	19:30	2h 30m	Embraer E175
Fri, Oct 23	AA 3961	American Airlines	18:08	20:32	2h 24m	Embraer E175
Sat, Oct 24	AA 3585	American Airlines	14:30	16:55	2h 25m	Embraer E175
Sat, Oct 24	DL 5615	Delta Air Lines	14:35	17:11	2h 36m	Embraer E175
Sun, Oct 25	DL 5615	Delta Air Lines	15:39	18:16	2h 37m	Embraer E175
Sun, Oct 25	AA 3961	American Airlines	18:08	20:32	2h 24m	Embraer E175
Mon, Oct 26	DL 5615	Delta Air Lines	13:20	15:57	2h 37m	Embraer E175
Mon, Oct 26	AA 3961	American Airlines	18:08	20:32	2h 24m	Embraer E175
Tue, Oct 27	DL 5615	Delta Air Lines	13:20	15:57	2h 37m	Embraer E175
Tue, Oct 27	AA 4685	American Airlines	17:00	19:30	2h 30m	Embraer E175
Tue, Oct 27	AA 3961	American Airlines	18:08	20:32	2h 24m	Embraer E175
Wed, Oct 28	DL 5615	Delta Air Lines	13:20	15:57	2h 37m	Embraer E175
Wed, Oct 28	AA 3961	American Airlines	18:08	20:32	2h 24m	Embraer E175
Thu, Oct 29	DL 5615	Delta Air Lines	13:20	15:57	2h 37m	Embraer E175
Thu, Oct 29	AA 4685	American Airlines	17:00	19:30	2h 30m	Embraer E175
Thu, Oct 29	AA 3961	American Airlines	18:08	20:32	2h 24m	Embraer E175

Showing all 17 scheduled SDF to BOS 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 SDF to BOS date on the interactive map

Aircraft on the Louisville to Boston nonstop

In the schedule table on this page, American Airlines flies the Embraer E175, and Delta Air Lines 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 SDF to BOS 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 Louisville to Boston 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 Louisville to Boston departures from October 19 to November 1. American Airlines had space open on 8 of 14 dates checked and Delta Air Lines on 10 of 13.

See real availability

Confirmed upgrade or award seats by date on the SDF to BOS 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 SDF to BOS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Louisville to Boston nonstop

Carriers operating SDF to BOS nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See SDF to BOS on the interactive map →

Frequently asked questions about SDF to BOS

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

Scheduled flight times from Louisville (SDF) to Boston (BOS) run from 2h 24m to 2h 37m 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 SDF to BOS?

American Airlines and Delta Air Lines fly SDF to BOS nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines and Delta Air Lines.

How many flights a week are there from SDF to BOS?

About 24 nonstop flights a week run between Louisville (SDF) and Boston (BOS) 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 SDF to BOS depart?

Scheduled SDF to BOS nonstops in the next 7 days with service leave between 13:20 and 18:08, local time at Louisville. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate SDF to BOS nonstop?

In the schedule table on this page, SDF to BOS nonstops fly as AA 3585, AA 3961, and AA 4685 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 SDF to BOS?

Open the SDF to BOS 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.