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Delta Air Lines / ATL → PDX

DL 539 on time

Delta Air Lines 539: Atlanta to Portland at 8:30 a.m.; Portland to Atlanta at 11:40 a.m. (past 12 months). Figures below the title are for ATL → PDX, its busiest leg

On time
82%
365 flights · likely 77–85%
Cancelled
1.6%
of scheduled flights
Typical arrival
−4 min
median vs schedule
When late
+37 min
average delay
Similar flights
83%
DL, same route & hour

About 1 in 5 DL 539 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (18%); 1.6% were cancelled. The typical flight landed 4 minutes early.

DL 539: ATL → PDX

Scheduled to leave Atlanta at 8:30 a.m. local time. Over the past year it arrived on time 82% of the time (365 flights), in line with other DL flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 90% on time (30 flights)90SepOct 2025: 81% on time (31 flights)81OctNov 2025: 83% on time (30 flights)83NovDec 2025: 55% on time (31 flights)55DecJan 2026: 74% on time (31 flights)74JanFeb 2026: 68% on time (28 flights)68FebMar 2026: 74% on time (31 flights)74MarApr 2026: 87% on time (30 flights)87AprMay 2026: 90% on time (31 flights)90MayJun 2026: 97% on time (30 flights)97JunJul 2026: 84% on time (31 flights)84JulAug 2026: 97% on time (31 flights)97Aug

By day of week

DayFlightsOn time
Monday5374%
Tuesday5285%
Wednesday5277%
Thursday5290%
Friday5287%
Saturday5283%
Sunday5277%

Why it was late

Airline (crew, maintenance, ops) 51%Air traffic & airport (NAS) 43%Severe weather 5%Late inbound plane 1%

All flights ATL → PDX · Connecting off DL 539? Check the risk

DL 539: PDX → ATL

Scheduled to leave Portland at 11:40 a.m. local time. Over the past year it arrived on time 85% of the time (303 flights), in line with other DL flights on the route at that hour (86%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 93% on time (30 flights)93SepOct 2025: 84% on time (31 flights)84OctNov 2025: 100% on time (30 flights)100NovDec 2025: 71% on time (31 flights)71DecJan 2026: too few flights (4 flights)JanFeb 2026: 88% on time (17 flights)88FebMar 2026: 90% on time (31 flights)90MarApr 2026: too few flights (12 flights)AprMay 2026: 80% on time (25 flights)80MayJun 2026: 83% on time (30 flights)83JunJul 2026: 71% on time (31 flights)71JulAug 2026: 94% on time (31 flights)94Aug

By day of week

DayFlightsOn time
Monday4381%
Tuesday4288%
Wednesday4293%
Thursday4491%
Friday4489%
Saturday4477%
Sunday4477%

Why it was late

Airline (crew, maintenance, ops) 42%Late inbound plane 39%Air traffic & airport (NAS) 19%

All flights PDX → ATL · Connecting off DL 539? Check the risk

Questions

How often is DL 539 from ATL to PDX late?

Delta Air Lines 539 from Atlanta, GA to Portland, OR arrived 15 or more minutes late, was diverted or was cancelled on 18% of 365 scheduled flights between September 2025 and August 2026. 1.6% were cancelled.

How often is DL 539 from PDX to ATL late?

Delta Air Lines 539 from Portland, OR to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 15% of 303 scheduled flights between September 2025 and August 2026. 1.0% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.