Delta Air Lines DL7840 Flight Status
According to Trip.com real-time data, the DL7840 flight operated by Delta Air Lines on Mar 4, 2026 is scheduled to fly from Boston (BOS) to Seoul (ICN). The flight is expected to depart at 11:00 AM (local time in Boston, UTC-5) and land at 4:35 PM (local time in Seoul, UTC+9) .
Tue, Mar 3
Wed, Mar 4
Thu, Mar 5
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En route
Your flight has departed Boston and is expected to arrive in Seoul at 4:56 PM.
15h 35m
Check-in Counter
20-26
Boarding Gate
E11
Arrival Gate
239
Baggage
5
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Scheduled
Your flight will depart on time.
15h 35m
Check-in Counter
20-26
Boarding Gate
--
Arrival Gate
--
Baggage
--
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Scheduled
Your flight will depart on time.
15h 35m
Check-in Counter
20-26
Boarding Gate
--
Arrival Gate
--
Baggage
--
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Information provided by VariFlightVariFlight. For real-time updates, please check airport displays or contact your airline. If this is not your flight, you can browse more options for flights from Boston to Seoul to find your schedule.
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DL7840
DL7840 Aircraft Details
According to Trip.com real-time data, the DL7840 flight flying from Boston to Seoul on 3/4/2026 is operated by the aircraft model Boeing 777-300ER. This aircraft has been in service for 10y, 8m. The aircraft is equipped with 277 seats.
Boeing 777-300ER
Punctuality (Departure)
13%
Punctuality (Arrival)
57%
Late on average
35 minutes
Age
10y, 8m
Seats
277
Flight Distance
--
Economy
Business
First
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi is unavailable
USB port and power outlet
Seat Information
--
Legroom
46 cm
Seat width
118°
Reclining Angle
3-3-3
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi is unavailable
USB port and power outlet
Seat Information
191 cm
More legroom than on 50% of flights
53 cm
Seat width better than on 50% of flights
180°
Reclining Angle Fully reclinable
2-2-2
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi is unavailable
USB port and power outlet
Seat Information
211 cm
Legroom
61 cm
Seat width
180°
Reclining Angle Fully reclinable
1-2-1
Seat layout example
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Flight History for DL7840
Trip.com historical records show that the last DL7840 flight departed on Tue, Mar 3 from BOS at approximately 11:43 AM. This flight is expected to arrrive in ICN at 4:56 PM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Fri, Feb 27 | Boston (BOS) | Seoul (ICN) | B77W | 11:38 AM | 4:21 PM | Arrived |
| Sat, Feb 28 | Boston (BOS) | Seoul (ICN) | B77W | 11:22 AM | 3:57 PM | Arrived |
| Sun, Mar 1 | Boston (BOS) | Seoul (ICN) | B77W | 12:17 PM | 5:13 PM | Arrived |
| Mon, Mar 2 | Boston (BOS) | Seoul (ICN) | B77W | 12:07 PM | 4:32 PM | Arrived |
| Tue, Mar 3 | Boston (BOS) | Seoul (ICN) | B77W | 11:43 AM | 4:56 PM | En route |
| Wed, Mar 4 | Boston (BOS) | Seoul (ICN) | B77W | 11:00 AM | 4:35 PM | Scheduled |
| Thu, Mar 5 | Boston (BOS) | Seoul (ICN) | B77W | 11:00 AM | 4:35 PM | Scheduled |
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DL7840 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of DL7840 is 13% (Late on average 58 minutes), and the on-time arrival rate is 57% (Late on average 35 minutes).
On-Time Departures
Punctuality
13%
Late on average 58 minutes
Early
0%
On time
13%
30 mins late
43%
60 mins late
37%
90 mins late
7%
Canceled
1%
On-Time Arrivals
Punctuality
57%
Late on average 35 minutes
Early
13%
On time
43%
30 mins late
20%
60 mins late
17%
90 mins late
7%
Canceled
1%
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Arrival Info: Seoul Weather & Current Time
Clear
|
-2°C - 11°C
Weather forecast for your arrival day
14 hour time difference
Time on arrival: Boston 02:35| Seoul 16:35
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