ON TIMEBOARD

COS → DAL on time

City of Colorado Springs (Colorado Springs, CO) to Dallas Love Field (Dallas, TX). Every scheduled flight, September 2025 to August 2026.

On time
80%
arrived < 15 min late
Cancelled
0.9%
786 flights
Typical arrival
−7 min
median vs schedule
When late
+59 min
average delay
Flights / day
2
1 airline

80% of flights from Colorado Springs to Dallas arrived on time over the past 12 months. That is about the typical U.S. route. The 5 a.m. departures ran on time 96% of the time; the 4 p.m. ones 60%. 7% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for COS → DAL: when a flight was late, it was under 45 minutes late 55% of the time. About 1 in 18 flights landed an hour or more late, and 1 in 131 three hours or more; 0.9% were cancelled outright.

Share of all 786 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Southwest Airlines78680%0.9%−7 min5.6%+59 minSouthwest Airlines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at COS). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%5 a.m. departures: 96% on time (191 flights)965a6 a.m. departures: too few flights (67 flights)6a7 a.m. departures: too few flights (65 flights)7a8 a.m. departures: too few flights (5 flights)8a9 a.m. departures: too few flights (19 flights)9a10 a.m. departures: too few flights (49 flights)10a11 a.m. departures: too few flights (34 flights)11anoon departures: too few flights (31 flights)12p1 p.m. departures: too few flights (36 flights)1p2 p.m. departures: too few flights (27 flights)2p3 p.m. departures: too few flights (16 flights)3p4 p.m. departures: 60% on time (159 flights)604p5 p.m. departures: too few flights (36 flights)5p6 p.m. departures: too few flights (51 flights)6p
COS → DAL, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On COS → DAL, each airline's last flight of the day was cancelled 1.5% of the time, against 0.5% for its earlier flights (3.0× as often). It arrived 3+ hours late 1.2% of the time (earlier flights: 0.5%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
Southwest Airlines4:35 p.m.1.5%1.2%0.5%first flight 5:58 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in DAL tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: February (89%). Worst: July (70%).

40%70%100%Jan: 80% on time (211 flights)80JanFeb: 89% on time (203 flights)89FebMar: 85% on time (201 flights)85MarApr: 83% on time (193 flights)83AprMay: 78% on time (200 flights)78MayJun: 71% on time (218 flights)71JunJul: 70% on time (230 flights)70JulAug: 82% on time (213 flights)82AugSep: 85% on time (227 flights)85SepOct: 88% on time (232 flights)88OctNov: 84% on time (234 flights)84NovDec: 80% on time (238 flights)80Dec

By day of week

DayFlightsOn timeCancelled
Monday12683%0.0%
Tuesday10880%0.0%
Wednesday10586%0.9%
Thursday12083%0.8%
Friday12478%1.6%
Saturday83——
Sunday12068%2.5%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Late inbound plane 53%Airline (crew, maintenance, ops) 28%Air traffic & airport (NAS) 17%Severe weather 2%

Cancellations: weather 7

Month by month

Not enough months with data to draw a trend.

Worst days in the past year

DateFlightsOn timeCancelled
Jan 25, 202630%2
Dec 29, 2025333%0
Nov 9, 2025333%0
Sep 1, 2025333%0
Jan 19, 2026333%0

Nearby airport alternatives

Other ways to make the same trip, using airports within 60 miles of Colorado Springs or Dallas. None has been clearly more reliable than COS → DAL.

RouteFlightsOn timeCancelled
COS → DAL (this route)78680%0.9%
COS → DFW City of Colorado Springs to Dallas/Fort Worth1,93376%2.2%

Questions

How often are flights from COS to DAL on time?

80% of 786 scheduled flights from Colorado Springs, CO to Dallas, TX arrived within 15 minutes of schedule between September 2025 and August 2026. 0.9% were cancelled.

What is the best time of day to fly COS to DAL?

Flights scheduled to leave at 5 a.m. were the most reliable (96% on time). The 4 p.m. departures were the least (60%).

What month has the most delays from COS to DAL?

July (70% on time). The best month is February (89%), over 2023–2026.

Is the last flight of the day from COS to DAL more likely to be cancelled?

Yes. Each airline's last COS–DAL flight of the day was cancelled 1.5% of the time over the past year, against 0.5% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.