DL1251 ATL → TUS

Delta Air Lines · Atlanta, GA to Tucson, AZ · 328 flights observed, 2025-07-01 to 2026-06-30 · 1,541 mi

This flight's scheduled flight time has grown by 11 min since 2025-07 — some of the on-time performance may reflect a more generous published schedule, not a faster or more reliable flight.

DL1251 covers more than one route in the data window — the stats below are for ATL → TUS, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
78%
Median delay
-3 min
90th percentile
+37 min
Cancellation rate
2%

How often is DL1251 on time?

Across 328 flights on ATL → TUS from 2025-07-01 to 2026-06-30, DL1251 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +37 min or later. 2% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time25278%
16-30 min3310%
31-60 min206%
61-120 min103%
2+ hrs82%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073063%+21 min
2025-083073%+8 min
2025-093087%-1 min
2025-103171%+13 min
2025-112983%+8 min
2025-121958%+22 min
2026-011567%+19 min
2026-022070%+3 min
2026-032882%-5 min
2026-043093%-7 min
2026-053181%+6 min
2026-063093%0 min

Performance by day of week

DayFlightsOn-time
Mon5076%
Tue4576%
Wed4482%
Thu4973%
Fri4877%
Sat3992%
Sun4873%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…