Showing Frontier only (incl. its regional partners)All airlines ×

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

Take the nonstop: Frontier CLT → IAH (3h 34m) reaches Houston on time 7 times in 10; the most reliable connection, Frontier via BWI (6h 34m), 48%.

Best time to leave 5–6 pm 64% arrive on time from CLT

Best single flight F9 3121 CLT 17:58 → IAH 20:32 · 77% 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).

CLT

% 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.

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.


F9 3121	CLT 17:58	IAH 20:32	77%

All 2 Frontier flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.


F9 2395	CLT 17:57	IAH 19:52	2h 55m	64	62%	4.7%	111 min
F9 3121	CLT 17:58	IAH 20:32	3h 34m	174	77%	4.6%	69 min

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.


Frontier	CLT	IAH	3h 34m	73%	4.6%	239	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