Carrier route record
F9OKC→ATL
Frontier Airlines · Oklahoma City to Atlanta
- Flights
- 103
- Period
- July 2025 to June 2026
- Share of route
- 6%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on OKC to ATL earns an F, which is as low as this site's scale goes for a reason. Only 52.0% of flights arrive inside the 15-minute window, 26 points worse than the national rate of 77.6%. Late arrivals average an hour and a half. Treat any tight connection here as a coin flip. That rests on 103 flights, with a median arrival 13 minutes late.
The national on-time rate over the same period is 77.6%, so Frontier on OKC to ATL runs 26 points behind the country as a whole. Across a thousand flights that is about 256 extra late arrivals.
Key figures
On time
52.0%
Arrivals under 15 minutes late, of 100 completed flights
Avg delay
99 min
Across delayed arrivals only, not all flights
Cancelled
2.91%
National rate is 1.81%
Whole route
86.6%
Every carrier on OKC to ATL, 1,828 flights
These figures cover 103 flights between July 2025 and June 2026. Beyond the headline rate, 23.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
Frontier against every carrier on OKC to ATL
Frontier flew 103 of the 1,828 flights on OKC to ATL, about 6% of it. Its 52.0% on time is 35 points worse than the route as a whole, which runs 86.6%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Southwest at 100.0% to Frontier at 52.0%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlinesthin sample | 1 | 100.0% | — | 0.00% | A+ |
| Delta Air Lines | 1,724 | 88.6% | 94 min | 2.15% | A |
| Frontier Airlines (this page)thin sample | 103 | 52.0% | 99 min | 2.91% | F |
Departure window
When Frontier runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 103 flights.
- 5am–8am—
- 8am–11am—
- 11am–2pm19 flights—
- 2pm–5pm39 flights55.6%
- 5pm–8pm45 flights51.1%
- 8pm–5am—
Scale runs 45% to 60%. Rows with fewer than 30 flights show a dash.
The 2pm–5pm window is the strongest at 55.6% on time. The full set of windows spans 5 points.
Across the year
Frontier on OKC to ATL through the year
- Jul–Sep 202514 flights—
- Oct–Dec 202535 flights50.0%
- Jan–Mar 202628 flights—
- Apr–Jun 202626 flights—
Scale runs 40% to 55%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 52.0% on time across 103 flights.
Split by quarter, Frontier on OKC to ATL logged 14 flights in Jul–Sep 2025, 35 flights in Oct–Dec 2025, 28 flights in Jan–Mar 2026 and 26 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 52.0% annual figure is the one to use.
Across the week, Thursday is the strongest day at 65.8% on time and Sunday the weakest at 36.1%. 30 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Frontier runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 77% of the 4,773 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 77%Late-arriving aircraft
- 16%National Airspace System
- 7%Carrier
77% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 4,773 reported delay minutes here, that single category outweighs weather by 77 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 4,773 reported delay minutes.
Cancellations run at 2.91%, against 1.81% nationally. That is roughly one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 23.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 761 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 63.0% on time across 103 flights, 11 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 11 points of difference.
One caution: this is a thin sample. 103 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 Frontier on OKC to ATL
Put together: the delay figures matter less here than the 2.91% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 2pm–5pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 100 completed flights over 12 months sit behind that.
Related
Where to go next
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.