How long is the LA6440 flight?

The timetable allows 5 h 25 min. Seattle to Boston is 4,005 km (2,489 mi).

What other flight numbers does LA6440 have?

Also listed as LAN6440 (LATAM Airlines' ICAO code) and LA 6440.

LA6440 Flight Status LATAM Airlines: Seattle to Boston (LAN6440)

LATAM Airlines LA 6440

Landed On Time

SEA Seattle

Scheduled: 23:10
Actual: 23:32

Gate: A3

Departure: Sun, Nov 8, 2026 · local time PST

Seattle Tacoma International Airport (SEA)

All SEA Departures >

BOS Boston

Scheduled: 07:25
Actual: 06:59
Delay

Terminal: E | Gate: E13

Arrival: Mon, Nov 9, 2026 · local time EST

Boston Logan International Airport (BOS)

All BOS Arrivals >

Landed 1h 02m ago 100%

SEA 23:32 BOS 06:59 ⁺¹

4,005 km (2,489 mi) flown

Estimated position based on departure and arrival times, not live tracking. Times are local at each airport.

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Distance: 4005 km / 2489 miles · Scheduled Duration: 05:15 · Actual Duration: 04:27

LA 6440 Flight Status & Schedule LATAM Airlines Seattle to Boston

Date	From	To	Departure	Arrival	Status	Details
Nov 08	SEA	BOS	23:32	06:59	Landed	Track >
Nov 07	SEA	BOS	23:16	06:47	Landed	Track >
Nov 05	SEA	BOS	01:15	09:24	Delayed	Track >
Nov 01	SEA	BOS	23:23	07:03	Landed	Track >

LATAM Airlines' Seattle–Boston flight covers 4,005 km (2,489 mi) and runs three times a week: Thursday, Saturday and Sunday. The timetable allows 5 h 25 min; there is not enough recent history yet to say how long it usually takes. Yesterday it left 22 minutes late and still landed at 06:59 the next morning, 26 minutes early.

< All Seattle SEA Departures All Boston BOS Arrivals >

About LA 6440

Route: Seattle Tacoma International Airport SEA to Boston Logan International Airport BOS
Distance: 4,005 km (2,489 mi)
Scheduled flight time: 5 h 25 min
Flies: Thu, Sat, Sun

LA 6440 FAQ

How long is the LA6440 flight?: The timetable allows 5 h 25 min. Seattle to Boston is 4,005 km (2,489 mi).
Which days does LA6440 fly?: Three times a week: Thursday, Saturday and Sunday, based on the schedule of the last 7 days.
What other flight numbers does LA6440 have?: Also listed as LAN6440 (LATAM Airlines' ICAO code) and LA 6440.

LA6440 and Seattle SEA to Boston BOS Flights

Flight LA6440 is a code-share LATAM Airlines flight of the Delta Air Lines operated DL473.

Other flights departing from Seattle SEA: AS22, DL473, DL810

Other flights arriving at Boston BOS: DL473, B6207, 9K970

All flights connecting Seattle SEA to Boston BOS.