Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

DAL340

Operated by Delta Air Lines

Live map

Live map filtered to DAL340. Shown when the flight is currently airborne.

Route airports View route page →

Departure

BOS KBOS VFR

Boston Logan International Airport

Boston, US

Local time
15:59 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
310° / 7 kt
Visibility
10 SM
Ceiling
FEW 3,000 ft
Temp / Dew
21°C / 13°C
Altimeter
29.70 inHg

Obs: 2026-10-12T18:54:00.000Z

Raw METAR / TAF 
METAR KBOS 121854Z 31007KT 10SM FEW030 21/13 A2970 RMK AO2 SLP056 T02110133

TAF KBOS 121938Z 1220/1324 31007KT P6SM FEW030 FM130300 35004KT P6SM BKN035 FM130500 05009KT 6SM BR OVC020 FM130600 06011KT 5SM BR OVC008 PROB30 1308/1311 2SM -SHRA BR OVC006 FM131100 07010G18KT 5SM BR OVC008 FM131700 14009KT 6SM BR OVC008 PROB30 1317/1323 4SM -SHRA OVC006

warning FAA Advisories

  • Ground Delay: low ceilings (avg 1 hour and 15 minutes)

flight Live Traffic

flight_takeoff 177 Departures
flight_land 226 Arrivals

Arrival

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
12:59 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
70° / 5 kt
Visibility
10 SM
Ceiling
FEW 3,000 ft
Temp / Dew
13°C / 4°C
Altimeter
30.06 inHg

Obs: 2026-10-12T18:53:00.000Z

Raw METAR / TAF 
METAR KSEA 121853Z 07005KT 10SM FEW030 13/04 A3006 RMK AO2 SLP185 T01330039

TAF KSEA 121727Z 1218/1324 VRB04KT P6SM SKC FM122100 28005KT P6SM SKC FM130300 VRB04KT P6SM SCT250 FM130600 14003KT P6SM SCT250 FM131200 16004KT P6SM OVC100 FM131800 20005KT P6SM OVC100

flight Live Traffic

flight_takeoff 222 Departures
flight_land 177 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A6F9B3 BOS → SEA Jul 26, 03:35 UTCJul 26, 04:00 UTC25m - -
2026-07-25 A6F9B3 BOS → SEA Jul 25, 22:20 UTCJul 25, 23:10 UTC50m - -
2026-07-24 A67BC8 BOS → SEA Jul 24, 22:15 UTCJul 25, 03:40 UTC5h 25m - -
2026-07-24 A6F5FC BOS → SEA Jul 24, 03:10 UTCJul 24, 03:25 UTC15m - -
2026-07-23 A6F5FC BOS → SEA Jul 23, 21:54 UTCJul 24, 03:29 UTC5h 35m +24m -5m
2026-07-23 A6F5FC BOS → SEA Jul 23, 21:55 UTCJul 23, 22:50 UTC55m - -
2026-07-22 A66576 BOS → SEA Jul 22, 23:15 UTCJul 23, 04:50 UTC5h 35m - -
2026-07-22 A6E720 - Jul 22, 03:05 UTCJul 22, 03:30 UTC25m - -
2026-07-21 A6E720 - Jul 21, 21:50 UTCJul 21, 22:40 UTC50m - -
2026-07-20 A64CE6 - Jul 20, 22:15 UTCJul 21, 03:50 UTC5h 34m - -
2026-07-20 A6D83C - Jul 20, 03:10 UTCJul 20, 03:30 UTC20m - -
2026-07-19 A6D83C - Jul 19, 22:00 UTCJul 19, 22:55 UTC55m - -
2026-07-18 A6B0BD SEA → KOA Jul 18, 21:55 UTCJul 19, 03:20 UTC5h 25m - -
2026-07-17 A6E720 SEA → KOA Jul 17, 22:00 UTCJul 18, 03:20 UTC5h 21m - -
2026-07-17 A6B470 - Jul 17, 04:10 UTCJul 17, 04:25 UTC15m - -
2026-07-16 A6B470 SEA → KOA Jul 16, 22:57 UTCJul 17, 04:30 UTC5h 33m +87m +5m
2026-07-16 A6B470 - Jul 16, 22:59 UTCJul 16, 23:55 UTC55m - -
2026-07-16 A65454 - Jul 16, 03:35 UTCJul 16, 03:50 UTC15m - -
2026-07-15 A65454 - Jul 15, 22:15 UTCJul 15, 23:10 UTC55m - -
2026-07-14 A6A6F6 - Jul 14, 21:45 UTCJul 14, 22:40 UTC55m - -
2026-07-14 A6A6F6 SEA → KOA Jul 14, 21:45 UTCJul 15, 03:18 UTC5h 33m +15m +15m
2026-07-13 A641BF - Jul 13, 21:55 UTCJul 14, 03:20 UTC5h 25m - -
2026-07-12 A6F23D - Jul 12, 03:05 UTCJul 12, 03:20 UTC15m - -
2026-07-11 A6F23D - Jul 11, 21:50 UTCJul 11, 23:00 UTC1h 10m - -
2026-07-10 A65454 SEA → KOA Jul 10, 22:01 UTCJul 11, 03:41 UTC5h 40m +31m +3m
2026-07-10 A65454 SEA → KOA Jul 10, 22:00 UTCJul 11, 03:35 UTC5h 35m - -
2026-07-10 A6EE8E - Jul 10, 06:50 UTCJul 10, 07:00 UTC10m - -
2026-07-09 A6EE8E SEA → KOA Jul 9, 21:51 UTCJul 10, 03:27 UTC5h 36m +21m -1m
2026-07-09 A6EE8E SEA → KOA Jul 9, 21:55 UTCJul 10, 03:25 UTC5h 30m - -
2026-07-08 A66CE0 SEA → KOA Jul 8, 22:10 UTCJul 9, 03:36 UTC5h 26m +40m +16m

Performance history

Flights tracked
179 showing last 30
Avg arrival delay
+6m
On-time arrival
83% 83% on time
Aircraft used
15

Monthly activity 4 months

Month Flights tracked
July 2026 44
June 2026 49
May 2026 54
April 2026 32

DAL340 frequently asked

Where does flight DAL340 fly?
DAL340 (Delta Air Lines) flies from BOS to SEA. View the full route page.
How long is flight DAL340?
Based on observed flights, DAL340 takes on average 2h 54m from takeoff to landing.
How often does DAL340 fly?
DAL340 has been observed flying several times a week in our tracking data. We've recorded 179 flights under this callsign.
Is flight DAL340 usually on time?
Across recent flights, DAL340 arrives with an average 6-minute delay. 83% of flights arrive within 15 minutes of schedule.
What aircraft operates flight DAL340?
DAL340 has been operated by 15 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track DAL340 live?
Yes. When DAL340 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.