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1,387 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 88% depart on time. After 4 pm it’s 2 in 3.

Best time to leave 7–8 am 90% arrive on time from IAH
Best single flight UA 1720 IAH 12:16 → BWI 16:30 · 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).

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IAH
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% 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
Baltimore flights leaving IAH 4–5 pm: 1Close ×
F9 3068 IAH 16:21 BWI 20:36 3h 15m 149 52% 5.4% 73 min

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.

United (incl. SkyWest, Mesa) 906 81% 0.9% 62 min
Spirit 332 79% 1.8% 60 min
Frontier 149 – 5.4% 73 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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.

UA 1720 IAH 12:16 BWI 16:30 81%
All 5 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.

United IAH BWI 3h 07m 81% 0.9% 906 Flying now
Frontier IAH BWI 3h 15m 52% 5.4% 149 Flying now
Spirit IAH BWI 2h 58m 79% 1.8% 332 Not flying now
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