Delta Air Lines DL639 Flight Status
Based on Trip.com’s real-time data, the DL639 flight operated by Delta Air Lines on Mar 16, 2026 is scheduled to fly from Los Angeles (LAX) to Boston (BOS). The flight is expected to depart at 07:55 (local time in Los Angeles, UTC-7) and land at 15:47 (local time in Boston, UTC-4) .
Sun, Mar 15
Mon, Mar 16
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En route
Your flight has departed Los Angeles and is expected to arrive in Boston at 16:01.
5h 19m
Check-in Counter
--
Boarding Gate
20
Arrival Gate
A19
Baggage
3
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Scheduled
Your flight will depart on time.
5h 19m
Check-in Counter
--
Boarding Gate
20
Arrival Gate
A19
Baggage
3
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Information provided by VariFlightVariFlight. For the latest updates, please refer to airport announcements or consult your airline. If this is not your flight, you can browse more options for flights from Los Angeles to Boston to find your schedule.
Track the Previous Flight Status: Scheduled
DL321
|
Boston (BOS) 
Los Angeles (LAX)
Los Angeles (LAX)Scheduled: 21:40
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DL639 Aircraft Details
Boeing 757-200
Punctuality (Departure)
87%
Punctuality (Arrival)
90%
Late on average
0 minutes
Age
26y, 5m
Seats
168
Distance
--
Economy
Business
First
Premium Economy
Onboard Amenities
None
Seatback entertainment system
Wi-Fi is available
USB port and power outlet
Seating Plan
--
Legroom
44 cm
Seat width better than on 54% of flights
100°
Reclining Angle
3-3
Seat layout example
Onboard Amenities
Meal included
Seatback entertainment system
Wi-Fi is available
USB port and power outlet
Seating Plan
--
Legroom
--
Seat width
--
Reclining Angle
2-2
Seat layout example
Onboard Amenities
Meal included
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seating Plan
193 cm
More legroom than on 53% of flights
48 cm
Seat width
180°
Reclining Angle Fully reclinable
2-2
Seat layout example
Onboard Amenities
None
Seatback entertainment system
Wi-Fi is available
USB port and power outlet
Seating Plan
89 cm
More legroom than on 33% of flights
44 cm
Seat width better than on 25% of flights
120°
Reclining Angle
3-3
Seat layout example
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Flight History for DL639
Trip.com historical records show that the last DL639 flight departed on Sun, Mar 15 from LAX at approximately 08:09. This flight is expected to arrrive in BOS at 16:01.
| Date | Airport | Aircraft Type | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Tue, Mar 10 | Los Angeles (LAX) | Boston (BOS) | 752 | 08:12 | 16:07 | Arrived |
| Wed, Mar 11 | Los Angeles (LAX) | Boston (BOS) | 752 | 08:19 | 16:00 | Arrived |
| Thu, Mar 12 | Los Angeles (LAX) | Boston (BOS) | 752 | 12:59 | 20:49 | Arrived |
| Fri, Mar 13 | Los Angeles (LAX) | Boston (BOS) | 752 | 08:04 | 15:55 | Arrived |
| Sat, Mar 14 | Los Angeles (LAX) | Boston (BOS) | 752 | 08:10 | 15:57 | Arrived |
| Sun, Mar 15 | Los Angeles (LAX) | Boston (BOS) | 752 | 08:09 | 16:01 | En route |
| Mon, Mar 16 | Los Angeles (LAX) | Boston (BOS) | 752 | 07:55 | 15:47 | Scheduled |
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DL639 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of DL639 is 87% (Late on average 32 minutes), and the on-time arrival rate is 90% (Early on average 0 minutes).
On-Time Departures
Punctuality
87%
Late on average 32 minutes
Early
0%
On time
87%
30 mins late
3%
60 mins late
3%
90 mins late
7%
Cancelled
1%
On-Time Arrivals
Punctuality
90%
Early on average 0 minutes
Early
77%
On time
13%
30 mins late
3%
60 mins late
0%
90 mins late
7%
Cancelled
1%
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Destination Info: Boston Weather & Time
Mostly cloudy
|
2°C - 5°C
Expected weather conditions upon arrival
3 hour time difference
Time on arrival: Los Angeles 12:47| Boston 15:47
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