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Route · SNA → DEN · 2020–2025 BTS data

Santa Ana to Denver

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SNA to DEN (Santa Ana to Denver) ranks #311 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

83.5%
On-time
+4.5 pts
vs US avg
64 min
Delay when late
20,983
Flights
#311 of 4927
Corpus placement

Cancelled

0.5%

Best Month

Oct 2024 91%

Worst Month

Jul 2025 67%

Distance

846 mi

Carriers

9

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 315 71 1 0 WN,F9,UA
Nov 2025 298 38 0 0 UA,F9,WN
Oct 2025 333 41 1 0 UA,WN,F9
Sep 2025 313 45 0 0 UA,WN,F9
Aug 2025 312 75 5 4 WN,F9,UA
Jul 2025 347 114 1 2 UA,WN,F9
Jun 2025 338 103 1 3 UA,WN,F9
May 2025 329 81 1 1 UA,WN,F9
Apr 2025 307 63 2 0 F9,UA,WN
Mar 2025 286 34 1 0 UA,WN,F9
Feb 2025 251 38 2 0 UA,WN,F9
Jan 2025 276 47 0 0 UA,WN,F9
Dec 2024 288 33 0 0 F9,UA,WN
Nov 2024 271 28 2 0 UA,WN,F9
Oct 2024 308 27 0 0 UA,WN,F9
Sep 2024 288 30 0 0 WN,UA,F9
Aug 2024 310 50 0 3 F9,WN,UA
Jul 2024 322 67 4 2 F9,UA,WN
Jun 2024 313 63 0 3 F9,UA,WN
May 2024 326 57 6 1 F9,UA,WN
Apr 2024 316 32 0 0 F9,UA,WN
Mar 2024 323 31 5 0 F9,UA,WN
Feb 2024 263 36 1 4 F9,UA,WN
Jan 2024 291 34 7 0 F9,WN,UA

SNA–DEN seasonal on-time pattern

Best: November (88.0%) · weakest: July (76.3%)

75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 82.3%

Strongest calendar month

November

88.0% on-time · ~282 flights/mo

Busiest calendar month

July

~327 flights/mo avg

Weakest calendar month

July

76.3% on-time · ~327 flights/mo

Cancellation Rate

0.5%

40 of 7,324 flights

Diversion Rate

0.3%

23 of 7,324 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

SNA - Santa Ana

Full on-time, delay-cause, and seasonal performance for Santa Ana, CA.

SNA on-time profile

DEN - Denver

Full on-time, delay-cause, and seasonal performance for Denver, CO.

DEN on-time profile

Compare the two airports

See SNA and DEN side by side on delays, cancellations, and reliability.

Compare SNA vs DEN

Origin-hub reliability standing

Mid-pack among SNA departures

From SNA, this corridor sits with 12 other 75–85% on-time routes out of 24 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 4 below 75%). Destination: Denver · fleet on-time rank #1773 of 4927.

What the Data Says About SNA to DEN

Bureau of Transportation Statistics records show Santa Ana to Denver (SNA to DEN) running a 83.5% on-time rate over 20,983 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 64.4 minutes. The 846-mile corridor is served by 9 carriers, and over the last 24 months 0.5% of 7,324 flights were cancelled, 0.3% diverted.

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 91% on-time, while Jul 2025 came in at just 67% - a 24-point swing worth factoring into travel timing.

On the multi-year calendar, SNA–DEN peaks in November at 88.0% on-time while July carries the heaviest traffic (~327 flights per month) ; the softest month is July at 76.3%, a 11.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SNA to DEN rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SNA to DEN ranks #311 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from SNA to DEN? ▼
Flights from Santa Ana to Denver have a 83.5% on-time rate based on 20,983 flights. The average delay is 64.4 minutes. The best recent month was Oct 2024 with 91% on-time.
What is the cancellation rate for SNA to DEN? ▼
Over the last 24 months, 0.5% of flights on this route were cancelled (40 of 7,324 flights) and 0.3% were diverted.
How far is the flight from SNA to DEN? ▼
The flight distance from Santa Ana (SNA) to Denver (DEN) is approximately 846 miles. This route is served by 9 carriers.
When is the best time to fly from SNA to DEN? ▼
The best recent month for on-time performance was Oct 2024 (91% on-time). The worst was Jul 2025 (67% on-time). Consider booking during months with historically better performance.

Airports on this route

SNA Airport

Santa Ana
DEN Airport

Denver
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using SNA–DEN data

SNA–DEN runs 4.5 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare SNA and DEN airport profiles: delay causes and top routes differ even on the same corridor. SNA airport
  • If your dates flex, November (88.0% on-time) beats July (76.3%) on this corridor. Seasonal chart
  • 4 other routes post a similar 83.5% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.