Flight number record
F9 1403
Frontier Airlines · Atlanta to Houston
- Route
- ATL → IAH
- Departs
- 06:07
- Flights
- 331
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 1403, check with Frontier Airlines.
F9 1403 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 331 flights, with a median arrival 7 minutes early.
Key figures
On time
74.7%
Arrivals under 15 minutes late, of 328 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
0.91%
National rate is 1.89%
1 hour+ late
10.7%
National rate is 8.3%
These figures cover 331 flights between September 2025 and August 2026. Beyond the headline rate, 10.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When F9 1403 flies
F9 1403 flies ATL to IAH without a single fixed slot. Its most common scheduled departure was 06:07, used on 84 of 331 flights, with 15:39 (36 flights) next.
- Departs 06:0784 flights25.4%
- Departs 15:3936 flights10.9%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 06:07 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and F9 1403 runs 15 points worse at 74.7%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
F9 1403 next to ATL to IAH
Every carrier on ATL to IAH combined arrived on time 76.9% of the time across 4,965 flights, so F9 1403 is 2 points behind it. Frontier flew 827 flights on the same city pair under all its flight numbers, including this one, and those ran 69.5% on time. Across its whole network Frontier Airlines managed 72.7%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 1403thin sample | 331 | 74.7% | 77 min | 0.91% | C+ |
| All Frontier Airlines on ATL–IAH | 827 | 69.5% | 87 min | 1.57% | C |
| All carriers on ATL–IAH | 4,965 | 76.9% | 69 min | 1.79% | B |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 1403 quarter by quarter
Quarter by quarter F9 1403 held fairly steady: 72.6% in Oct–Dec 2025, 73.1% in Jan–Mar 2026, 79.3% in Apr–Jun 2026 and 72.1% in Jul–Sep 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202529 flights—
- Oct–Dec 202574 flights72.6%
- Jan–Mar 202679 flights73.1%
- Apr–Jun 202687 flights79.3%
- Jul–Sep 202662 flights72.1%
Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, F9 1403 did best on Saturday at 84.1% on time and worst on Monday at 64.0%. Each day rests on about 47 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 1403 runs when it is late
F9 1403 often beats the schedule: 119 of 328 completed flights, 36%, arrived 15 minutes or more early. The 83 late arrivals split 27 under half an hour, 21 between 30 and 60 minutes, and 35 an hour or more.
- 15+ min early119 flights36.3%
- Within 15 min126 flights38.4%
- 15–29 min late27 flights8.2%
- 30–59 min late21 flights6.4%
- 1–2 hours late21 flights6.4%
- 2+ hours late14 flights4.3%
Scale runs 0% to 100%.
Share of 328 completed flights by arrival against schedule.
A late pushback is often recovered here: of 103 departures that left 15 minutes late or more, 33 still arrived on time. 13 flights left on time and still arrived late.
The worst days
Worst days for F9 1403
The latest arrival of the period was on 27 October 2025, 7 hours 27 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in October 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 27 October 2025 | 7 hours 27 minutes | Late-arriving aircraft |
| 13 October 2025 | 5 hours 58 minutes | Carrier |
| 4 January 2026 | 5 hours 20 minutes | Late-arriving aircraft |
| 10 October 2025 | 4 hours 42 minutes | Late-arriving aircraft |
| 29 November 2025 | 4 hours 41 minutes | Carrier |
Delay causes
Why F9 1403 runs late
Late-arriving aircraft accounts for 43% of the 6,379 delay minutes carriers reported here, and the remaining four split what is left.
- 43%Late-arriving aircraft
- 38%Carrier
- 19%National Airspace System
- 0%Extreme weather
43% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,379 reported delay minutes here, that single category outweighs weather by 43 to one. The split is drawn from 6,379 delay minutes reported on F9 1403.
Cancellations sit at 0.91% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
10.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 689 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 331 flights under F9 1403 in the data flew ATL to IAH. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 331 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking F9 1403
For a booking, read F9 1403 as 74.7% on time with 0.91% cancelled over 331 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to IAH, every carrier and departure
- IAH to ATL, the return direction
- Delta Air Lines 1601 on the same route75.0%
- Delta Air Lines 1284 on the same route71.6%
- Delta Air Lines 1682 on the same route84.5%
- Frontier Airlines 4075 on the same route61.3%
- Delta Air Lines 1585 on the same route82.3%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- George Bush Intercontinental (IAH) delay statistics
- Frontier Airlines on-time record
- Every Frontier Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means Frontier Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.