Carrier route record

F9OMA→DEN

Frontier Airlines · Omaha to Denver

Flights: 213
Period: July 2025 to June 2026
Share of route: 6%
Carriers: 4

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Frontier Airlines.

Frontier on OMA to DEN sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land close to two hours behind schedule. That rests on 213 flights. The strongest carrier on the route with a full sample, SkyWest Airlines, flew 386 at 89.5% on time.

SkyWest Airlines is the most reliable of the three carriers covered here at 89.5% on time across 386 flights.

On time

69.0%

Arrivals under 15 minutes late, of 213 completed flights

Avg delay

120 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

Whole route

76.1%

Every carrier on OMA to DEN, 3,289 flights

These figures cover 213 flights between July 2025 and June 2026. Beyond the headline rate, 17.8% 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 OMA to DEN

Frontier flew 213 of the 3,289 flights on OMA to DEN, about 6% of it. Its 69.0% on time is 7 points worse than the route as a whole, which runs 76.1%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from SkyWest at 89.5% to Frontier at 69.0%.

The choice of carrier is not cosmetic here. SkyWest Airlines arrives on time 89.5% of the time; Southwest Airlines manages 71.3%. Sample sizes sit next to every figure, because a two-point gap across 1,404 flights means less than a ten-point one.

On-time performance by carrier on OMA to DEN
Airline	Flights	On time	Avg delay	Cancelled	Grade
SkyWest Airlines	386	89.5%	90 min	0.78%	A+
United Airlines	1,286	78.4%	73 min	0.54%	B+
Southwest Airlines	1,404	71.3%	59 min	0.64%	C+
Frontier Airlines (this page)thin sample	213	69.0%	120 min	0.00%	C+

The spread between SkyWest and Southwest is 18 points, wide enough that it should decide the booking. On a hundred trips that is 18 more arrivals inside the on-time window.

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 213 flights.

There are not enough flights in each departure window to split Frontier's OMA to DEN record by time of day without the percentages moving on noise. The headline rate of 69.0% is the reliable figure here.

Across the year

Frontier on OMA to DEN through the year

Jul–Sep 202554 flights61.1%
Oct–Dec 202551 flights76.5%
Jan–Mar 202639 flights64.1%
Apr–Jun 202669 flights72.5%

Scale runs 55% to 80%. 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 69.0% on time across 213 flights.

Frontier on OMA to DEN did not run the same all year. Its best quarter was Oct–Dec 2025 at 76.5% on time and its weakest Jul–Sep 2025 at 61.1%, a swing of 15 points on roughly 53 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.

Across the week, Friday is the strongest day at 73.0% on time and Thursday the weakest at 62.5%. 11 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 58% of the 7,931 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.

Late-arriving aircraft
58%
National Airspace System
24%
Carrier
15%
Extreme weather
3%

58% 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 7,931 reported delay minutes here, that single category outweighs weather by 17 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 7,931 reported delay minutes.

Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.

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. 17.8% 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.

At 472 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 8pm–5am window matters as much as it does.

The return leg runs 70.3% on time across 213 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 213 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 OMA to DEN

Put together: treat all of this as provisional. 213 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 69.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 213 completed flights over 12 months sit behind that.

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.

Key figures