ON TIMEBOARD

DL 3686 on time

Delta Air Lines 3686: Minneapolis to Duluth at 2:45 p.m.; Duluth to Minneapolis at 12:01 p.m. (past 12 months). Figures below the title are for MSP → DLH, its busiest leg

On time
80%
239 flights · likely 74–84%
Cancelled
2.9%
of scheduled flights
Typical arrival
−11 min
median vs schedule
When late
+83 min
average delay
Similar flights
75%
DL, same route & hour

About 1 in 5 DL 3686 flights from Minneapolis arrived 15+ minutes late, diverted or cancelled over the past year (20%); 2.9% were cancelled. The typical flight landed 11 minutes early.

DL 3686: MSP → DLH

Scheduled to leave Minneapolis at 2:45 p.m. local time, operated by SkyWest as OO 3686. Over the past year it arrived on time 80% of the time (239 flights), better than other DL flights on the route at that hour (75%). Last seen in the data Aug 30, 2026.

Month by month

40%70%100%Aug 2025: 93% on time (30 flights)93AugSep 2025: 90% on time (30 flights)90SepOct 2025: 97% on time (30 flights)97OctNov 2025: 72% on time (29 flights)72NovDec 2025: 74% on time (19 flights)74DecJan 2026: too few flights (13 flights)JanFeb 2026: too few flights (11 flights)FebApr 2026: 83% on time (18 flights)83AprMay 2026: too few flights (5 flights)MayJun 2026: 83% on time (23 flights)83JunJul 2026: 77% on time (31 flights)77JulAug 2026: 70% on time (30 flights)70Aug

By day of week

DayFlightsOn time
Monday3678%
Tuesday3678%
Wednesday3586%
Thursday3482%
Friday3370%
Saturday3288%
Sunday3376%

Why it was late

Airline (crew, maintenance, ops) 62%Severe weather 23%Air traffic & airport (NAS) 11%Security 3%

All flights MSP → DLH · Connecting off DL 3686? Check the risk

DL 3686: DLH → MSP

Scheduled to leave Duluth at 12:01 p.m. local time, operated by SkyWest as OO 3686. Over the past year it arrived on time 79% of the time (215 flights), better than other DL flights on the route at that hour (71%). Last seen in the data Aug 30, 2026.

Usually Delta Air Lines's last flight of the day from Duluth to Minneapolis (51% of days). Delta Air Lines's last DLH–MSP flight was cancelled 1.4% of the time, against 2.8% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 5:00 a.m. the next morning.

Month by month

40%70%100%Jun 2025: 86% on time (21 flights)86JunJul 2025: 92% on time (26 flights)92JulAug 2025: 83% on time (30 flights)83AugSep 2025: 90% on time (30 flights)90SepOct 2025: 93% on time (30 flights)93OctNov 2025: 72% on time (29 flights)72NovDec 2025: 74% on time (19 flights)74DecApr 2026: 78% on time (18 flights)78AprMay 2026: too few flights (5 flights)MayJun 2026: 74% on time (23 flights)74JunJul 2026: 71% on time (31 flights)71JulAug 2026: 73% on time (30 flights)73Aug

By day of week

DayFlightsOn time
Monday3275%
Tuesday3275%
Wednesday3177%
Thursday3181%
Friday3080%
Saturday2986%
Sunday3080%

Why it was late

Airline (crew, maintenance, ops) 63%Severe weather 25%Air traffic & airport (NAS) 9%Security 3%

All flights DLH → MSP · Connecting off DL 3686? Check the risk

Questions

How often is DL 3686 from MSP to DLH late?

Delta Air Lines 3686 from Minneapolis, MN to Duluth, MN arrived 15 or more minutes late, was diverted or was cancelled on 20% of 239 scheduled flights between September 2025 and August 2026. 2.9% were cancelled.

How often is DL 3686 from DLH to MSP late?

Delta Air Lines 3686 from Duluth, MN to Minneapolis, MN arrived 15 or more minutes late, was diverted or was cancelled on 21% of 215 scheduled flights between September 2025 and August 2026. 3.3% 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.