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769 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 85% depart on time. After 4 pm it’s barely half.

Best time to leave 8–9 am 94% arrive on time from BWI
Best single flight DL 1176 BWI 07:10 → SLC 09:49 · 81% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

7
8
9
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BWI
84
90
71
88
68
52
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Delta 360 81% 1.7% 65 min
Southwest 409 76% 1.5% 56 min

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
DL 1176 BWI 07:10 SLC 09:49 81%
All 3 flights on this route →

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
Delta BWI SLC 4h 39m 81% 1.7% 360 Flying now
Southwest BWI SLC 4h 50m 76% 1.5% 409 Flying now

Alternatives with one stop

All connections →
DeltaDetails → BWI 09:39 → DTW 11:07DL 2341 1h 18m Detroit DTW 12:25 → SLC 14:19DL 935 6h 40m 92% 78%
UnitedDetails → BWI 08:30 → DEN 10:25UA 2412 1h 15m Denver DEN 11:40 → SLC 13:13UA 1963 6h 43m 94% 75%
DeltaDetails → BWI 11:35 → MSP 13:16DL 2357 1h 09m Minneapolis MSP 14:25 → SLC 16:16DL 2658 6h 45m 88% 68%
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON