DL1734Delta Air Lines · ATL → YYZ
live · 5m ago
Route confirmed Delta Air Lines

DL1734 AtlantaATL · 14:59 TorontoYYZ · 17:19

DL1734 by Delta Air Lines flies from Atlanta (ATL) to Toronto (YYZ) for the Mon, Sep 7 departure.

Right nowIn the air to Toronto
17:09

estimated arrival at YYZ · local time · ~54 min from now

LivePosition · updated 5m ago
ATL359 mi · ~54 min leftYYZ
29,000 ftAltitudecruising
505 mphSpeed439 kt
Direction

Live position · flown path, last 56 min

⚖ DL1734 typically leaves +11 and lands −20. The air wins minutes back.
Typical gate push+11 minmedian posted departure
Typical arrival−20 minmedian over 9 operations
Wins back in air~31 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+39+77+116 min
09-06
+23 gate · −5 arrival
09-05
+11 gate · −13 arrival
09-04
+9 gate · −23 arrival
09-03
+11 gate · −20 arrival
09-02
+114 gate · +116 arrival
09-01
+8 gate · −25 arrival
08-31
+6 gate · −24 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −20 min · 0 cancelled · 9 operations tracked

The route today

live boards
ATLAtlantaOn-time likelyATL delay board →
YYZTorontoOn-time likelyYYZ delay board →
ATL→YYZevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
39%Chance of 15+ min delay
4.6%Chance of cancellation
+12 minAvg hub delay right now

Conditions at ATL and YYZ are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Atlanta to Toronto flights today

same route · Delta Air Lines
DL2957departs 08:05
DL2883departs 10:00
DL2669departs 19:35
DL2422departs 21:35

If DL1734 is cancelled, these are the other Delta Air Lines nonstop flights from Atlanta to Toronto on the same day, with scheduled departure times in ATL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How DL1734 actually runs

Pro Flight Search has tracked every published board update for DL1734 across the ATL and YYZ boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min early. Based on 9 confirmed landings · 8/9 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how DL1734 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
09-06ATL 14:59 15:22 (+23)YYZ 17:19 17:14 (−5)
09-05ATL 14:59 15:10 (+11)YYZ 17:19 17:06 (−13)
09-04ATL 14:59 15:08 (+9)YYZ 17:19 16:56 (−23)
09-03ATL 14:59 15:10 (+11)YYZ 17:19 16:59 (−20)
09-02ATL 14:59 16:53 (+114)YYZ 17:19 19:15 (+116)
09-01ATL 14:59 15:07 (+8)YYZ 17:19 16:54 (−25)
08-31ATL 14:59 15:05 (+6)YYZ 17:19 16:55 (−24)
08-30ATL 14:59 15:03 (+4)YYZ 17:19 16:48 (−31)
08-29ATL 14:59 15:14 (+15)YYZ 17:19 17:08 (−11)

Aircraft

Recent tails: N859DN, N850DN, N900DU, N874DN.

Board clocks recorded as ATL and YYZ published them.

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — DL1734 Atlanta to Toronto on-time performance, measured from the ATL and YYZ airport boards.

Canonical URL
https://proflightsearch.com/flight/DL1734
How we measure this →