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

American Airlines and Delta Air Lines fly the SDF to BOS nonstop about 13 times a week. That is enough service for a real choice of departures, though on a sector this short the premium cabin is a handful of seats and does not sit unclaimed for long. 2LNR tracks confirmed upgrade and award space on American Airlines and Delta Air Lines, on every SDF to BOS departure, so you know which flights have space before you book.

Schedule last confirmed September 6, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book.

See SDF to BOS on the interactive map Get started free

Nonstop flights a week

827 mi

Nonstop distance

Free

To get started

Louisville to Boston flight schedule

Scheduled nonstop departures for SDF 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.

Scheduled nonstop departures from Louisville (SDF) to Boston (BOS)
Date	Flight	Airline	Departs SDF	Arrives BOS	Duration	Aircraft
Tue, Sep 8	DL 5615	Delta Air Lines	12:39	15:20	2h 41m	E75
Tue, Sep 8	AA 4110	American Airlines	17:10	19:41	2h 31m	E75
Wed, Sep 9	DL 5615	Delta Air Lines	12:39	15:20	2h 41m	E75
Wed, Sep 9	AA 4685	American Airlines	17:36	20:08	2h 32m	E75
Thu, Sep 10	DL 5615	Delta Air Lines	12:39	15:20	2h 41m	E75
Fri, Sep 11	DL 5615	Delta Air Lines	12:39	15:20	2h 41m	E75
Fri, Sep 11	AA 4685	American Airlines	16:51	19:23	2h 32m	E75
Sat, Sep 12	AA 4685	American Airlines	13:35	16:07	2h 32m	E75
Sat, Sep 12	DL 5615	Delta Air Lines	15:55	18:36	2h 41m	E75
Sun, Sep 13	DL 5615	Delta Air Lines	13:00	15:35	2h 35m	E75
Sun, Sep 13	AA 4685	American Airlines	16:51	19:23	2h 32m	E75
Mon, Sep 14	DL 5615	Delta Air Lines	12:50	15:31	2h 41m	E75
Mon, Sep 14	AA 4685	American Airlines	16:51	19:23	2h 32m	E75

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

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.

See real availability

Confirmed upgrade and award seats on each SDF 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 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. 2LNR tracks confirmed upgrade and award space on each of them.

See SDF to BOS on the interactive map →

Frequently asked questions about SDF to BOS

How far is Boston from Louisville?

SDF to BOS 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 SDF to BOS?

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 SDF to BOS?

About 13 nonstop flights a week run between Louisville and Boston 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 12:39 and 17:36, local time at Louisville. 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 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.

Never miss SDF 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.

Get started free