Flight number record
F9 1755
Frontier Airlines · Houston to Los Angeles
- Route
- IAH → LAX
- Departs
- 16:02
- Flights
- 334
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 1755, check with Frontier Airlines.
F9 1755 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 334 flights, with a median arrival 7 minutes early.
The national on-time rate over the same period is 77.3%, so F9 1755 runs 5 points behind the country as a whole. Across a thousand flights that is about 54 extra late arrivals.
Key figures
On time
71.9%
Arrivals under 15 minutes late, of 331 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
0.90%
National rate is 1.89%
1 hour+ late
7.9%
National rate is 8.3%
These figures cover 334 flights between September 2025 and August 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When F9 1755 flies
F9 1755 flies IAH to LAX without a single fixed slot. Its most common scheduled departure was 16:02, used on 50 of 334 flights.
- Departs 16:0250 flights15.0%
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 16:02 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and F9 1755 runs level with that at 71.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
F9 1755 next to IAH to LAX
Every carrier on IAH to LAX combined arrived on time 84.1% of the time across 5,147 flights, so F9 1755 is 12 points behind it. Across its whole network Frontier Airlines managed 72.7%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 1755thin sample | 334 | 71.9% | 60 min | 0.90% | C+ |
| All Frontier Airlines on IAH–LAXthin sample | 336 | 71.8% | 60 min | 0.89% | C+ |
| All carriers on IAH–LAX | 5,147 | 84.1% | 62 min | 0.45% | B+ |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 1755 quarter by quarter
F9 1755 did not run the same all year. Its best quarter was Apr–Jun 2026 at 76.9% on time and its weakest Oct–Dec 2025 at 61.4%, a swing of 16 points on roughly 84 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202521 flights—
- Oct–Dec 202583 flights61.4%
- Jan–Mar 202677 flights73.7%
- Apr–Jun 202691 flights76.9%
- Jul–Sep 202662 flights73.3%
Scale runs 55% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, F9 1755 did best on Thursday at 86.5% on time and worst on Saturday at 62.7%. Each day rests on about 48 flights, so a gap of 24 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 1755 runs when it is late
F9 1755 often beats the schedule: 118 of 331 completed flights, 36%, arrived 15 minutes or more early. The 93 late arrivals split 41 under half an hour, 26 between 30 and 60 minutes, and 26 an hour or more.
- 15+ min early118 flights35.6%
- Within 15 min120 flights36.3%
- 15–29 min late41 flights12.4%
- 30–59 min late26 flights7.9%
- 1–2 hours late15 flights4.5%
- 2+ hours late11 flights3.3%
Scale runs 0% to 100%.
Share of 331 completed flights by arrival against schedule.
22 of 96 late departures made up the time and arrived on time, 23% of them. In the other direction, 19 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at LAX.
The worst days
Worst days for F9 1755
The latest arrival of the period was on 24 January 2026, 7 hours 12 minutes behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 24 January 2026 | 7 hours 12 minutes | Extreme weather |
| 11 May 2026 | 5 hours | Carrier |
| 21 April 2026 | 4 hours 47 minutes | Late-arriving aircraft |
| 13 July 2026 | 3 hours 43 minutes | Carrier |
| 12 August 2026 | 3 hours 25 minutes | Carrier |
Delay causes
Why F9 1755 runs late
Late-arriving aircraft accounts for 48% of the 5,553 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Late-arriving aircraft
- 31%Carrier
- 14%National Airspace System
- 7%Extreme weather
48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,553 reported delay minutes here, that single category outweighs weather by 7 to one. The split is drawn from 5,553 delay minutes reported on F9 1755.
Cancellations sit at 0.90% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
7.9% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 1,379 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 334 flights under F9 1755 in the data flew IAH to LAX. 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. 334 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 1755
For a booking, F9 1755 is one of the weaker ways to fly IAH to LAX: 12 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.
Related
Where to go next
- IAH to LAX, every carrier and departure
- LAX to IAH, the return direction
- Delta Air Lines 1216 on the same route93.1%
- United Airlines 2460 on the same route89.0%
- United Airlines 1743 on the same route83.3%
- United Airlines 2600 on the same route91.3%
- United Airlines 469 on the same route89.0%
- United Airlines 2095 on the same route76.7%
- George Bush Intercontinental (IAH) delay statistics
- Los Angeles International (LAX) 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.