Apparatus

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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 MVFR

Boston Logan International Airport

Boston, US

Local time
03:56 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
20 ft
Coordinates
42.3620, -71.0079

cloud Weather

Wind
270° / 9 kt
Visibility
10 SM
Ceiling
BKN 1,300 ft, BKN 1,900 ft, OVC 11,000 ft
Temp / Dew
14°C / 12°C
Altimeter
29.59 inHg

Obs: 2026-05-30T07:49:00.000Z

Raw METAR / TAF 
SPECI KBOS 300749Z 27009KT 10SM BKN013 BKN019 OVC110 14/12 A2959 RMK AO2 RAE21 P0001

TAF KBOS 300537Z 3006/3112 12012G20KT P6SM -SHRA OVC040 FM300700 08013KT P6SM BKN030 FM301000 36020G32KT P6SM VCSH SCT010 OVC015 FM301200 03025G44KT 3SM RA BR SCT008 OVC010 FM302200 01017G28KT P6SM VCSH BKN020 FM310000 01013G20KT P6SM BKN060 FM310300 33010KT P6SM SCT250

flight Live Traffic

flight_takeoff 47 Departures
flight_land 44 Arrivals

Arrival

SEA KSEA MVFR

Seattle–Tacoma International Airport

Seattle, US

Local time
00:56 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
30° / 6 kt
Visibility
4 SM
Ceiling
FEW 1,500 ft, BKN 3,300 ft, OVC 4,500 ft
Temp / Dew
9°C / 7°C
Altimeter
30.17 inHg
Wx
-RA BR

Obs: 2026-05-30T06:53:00.000Z

Raw METAR / TAF 
METAR KSEA 300653Z 03006KT 4SM -RA BR FEW015 BKN033 OVC045 09/07 A3017 RMK AO2 RAB05 SLP223 P0003 T00940072 $

TAF KSEA 300520Z 3006/3112 01009KT P6SM OVC035 TEMPO 3006/3009 -SHRA FM301200 14005KT P6SM BKN030 FM301900 28006KT P6SM BKN070 FM302200 31008KT P6SM SCT070 BKN250

flight Live Traffic

flight_takeoff 226 Departures
flight_land 202 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 A661BF BOS → SEA May 29, 21:45 UTCMay 30, 03:25 UTC5h 40m - -
2026-05-28 A69463 BOS → SEA May 28, 21:40 UTCMay 29, 03:15 UTC5h 35m - -
2026-05-27 A6709B BOS → SEA May 27, 21:50 UTCMay 27, 22:40 UTC50m - -
2026-05-27 A6709B BOS → SEA May 27, 21:49 UTCMay 28, 03:19 UTC5h 30m +19m +17m
2026-05-26 A65454 BOS → SEA May 26, 23:29 UTCMay 27, 04:39 UTC5h 10m - -
2026-05-26 A66CE0 BOS → SEA May 26, 02:49 UTCMay 26, 03:05 UTC15m - -
2026-05-25 A66CE0 BOS → SEA May 25, 21:49 UTCMay 25, 22:40 UTC50m - -
2026-05-25 A690A8 BOS → SEA May 25, 03:00 UTCMay 25, 03:15 UTC15m - -
2026-05-23 A66576 BOS → SEA May 23, 22:30 UTCMay 24, 03:55 UTC5h 25m - -
2026-05-22 A65454 BOS → SEA May 22, 21:40 UTCMay 23, 03:05 UTC5h 24m - -
2026-05-22 A657F4 BOS → SEA May 22, 02:40 UTCMay 22, 03:00 UTC20m - -
2026-05-21 A657F4 BOS → SEA May 21, 21:45 UTCMay 21, 22:35 UTC50m - -
2026-05-20 A6AABA BOS → SEA May 20, 21:55 UTCMay 21, 03:30 UTC5h 35m - -
2026-05-20 A66576 BOS → SEA May 20, 02:35 UTCMay 20, 02:50 UTC15m - -
2026-05-19 A66576 BOS → SEA May 19, 21:40 UTCMay 19, 22:30 UTC50m - -
2026-05-18 A6FFC3 BOS → SEA May 18, 22:10 UTCMay 18, 22:50 UTC40m - -
2026-05-18 A6FFC3 BOS → SEA May 18, 22:06 UTCMay 19, 03:40 UTC5h 34m +36m +1m
2026-05-18 A6D234 BOS → SEA May 18, 03:01 UTCMay 18, 03:15 UTC15m - -
2026-05-17 A6D234 BOS → SEA May 17, 21:45 UTCMay 17, 22:35 UTC50m - -
2026-05-16 A6FFC3 BOS → SEA May 16, 21:50 UTCMay 17, 03:25 UTC5h 35m - -
2026-05-16 A6BBEF BOS → SEA May 16, 03:40 UTCMay 16, 04:00 UTC20m - -
2026-05-15 A6BBEF BOS → SEA May 15, 22:20 UTCMay 15, 23:10 UTC50m - -
2026-05-15 A6C70F BOS → SEA May 15, 03:20 UTCMay 15, 03:35 UTC15m - -
2026-05-14 A6C70F BOS → SEA May 14, 21:45 UTCMay 14, 22:40 UTC55m - -
2026-05-14 A6C70F BOS → SEA May 14, 21:45 UTCMay 15, 03:39 UTC5h 54m +15m -7m
2026-05-14 A6CACB BOS → SEA May 14, 03:40 UTCMay 14, 03:55 UTC15m - -
2026-05-13 A6CACB BOS → SEA May 13, 22:15 UTCMay 13, 23:10 UTC55m - -
2026-05-13 A6CE7D BOS → SEA May 13, 03:15 UTCMay 13, 03:30 UTC15m - -
2026-05-12 A6CE7D BOS → SEA May 12, 22:03 UTCMay 13, 03:37 UTC5h 34m +33m +13m
2026-05-12 A6CE7D BOS → SEA May 12, 22:05 UTCMay 12, 23:01 UTC55m - -

Performance history

Flights tracked
83 showing last 30
Avg arrival delay
+6m
On-time arrival
75% 75% on time
Aircraft used
15

Monthly activity 2 months

Month Flights tracked
May 2026 51
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 24m 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 83 flights under this callsign.
Is flight DAL340 usually on time?
Across recent flights, DAL340 arrives with an average 6-minute delay. 75% 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.