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2,328 km · Domestic

Charleston (CHS) – Denver (DEN)

In July 2026, 122 flights operated between Charleston and Denver (both directions), and 63.9% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January110111▲ 0.9%
February112110▼ 1.8%
March124122▼ 1.6%
April120118▼ 1.7%
May12497▼ 21.8%
June119114▼ 4.2%
July124122▼ 1.6%
August100––
September94––
October104–in progress
November95––
December92––
Year to date (Jan–Jul)833794▼ 4.7%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January77.3%91.0%▲ 17.7%
February85.7%77.3%▼ 9.8%
March79.0%83.6%▲ 5.8%
April73.3%80.5%▲ 9.8%
May67.7%84.5%▲ 24.8%
June68.9%69.3%▲ 0.6%
July71.8%63.9%▼ 11.0%
August75.0%––
September89.4%––
October64.4%–in progress
November86.3%––
December78.3%––
Year-to-date average (Jan–Jul)74.8%78.6%▲ 5.0%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January103▼ 70.0%
February00–
March02–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)115▼ 54.5%

Airlines on this route

  1. United Airlines 61.1%
  2. Southwest Airlines 38.9%

Oct 1, 2024 – Jul 31, 2026

By direction

CHS → DEN

Scheduled flights
1,197
Flights operated
1,187
Cancelled
10 · 0.8%
On-time departures
74.7%

DEN → CHS

Scheduled flights
1,196
Flights operated
1,189
Cancelled
7 · 0.6%
On-time departures
81.0%

CHS → DEN and DEN → CHS counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 1,463 61.1% 83.9% 12
Southwest Airlines WN 930 38.9% 68.4% 5

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay09:00–10:002.8min · 621 recorded · 615 measured
Gap to highest-delay hour20.8min09:00 ↔ 15:00
Recorded flights2,393CHS–DEN

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 6 recorded · 6 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 24 recorded · 24 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 44 recorded · 44 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 89 recorded · 88 measured · Source: the US BTS 09:00 · 91.5% · 621 recorded · 615 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 164 recorded · 164 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 9 recorded · 9 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 66 recorded · 66 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 198 recorded · 198 measured · Source: the US BTS 15:00 · 56.3% · 206 recorded · 206 measured · Source: the US BTS 16:00 · 73.6% · 788 recorded · 780 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 118 recorded · 116 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 9 recorded · 9 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 12 recorded · 12 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 6 recorded · 6 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 24 recorded · 24 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 44 recorded · 44 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 89 recorded · 88 measured · Source: the US BTS 09:00 · 2.8 min · 621 recorded · 615 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 164 recorded · 164 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 9 recorded · 9 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 66 recorded · 66 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 198 recorded · 198 measured · Source: the US BTS 15:00 · 23.5 min · 206 recorded · 206 measured · Source: the US BTS 16:00 · 19.7 min · 788 recorded · 780 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 118 recorded · 116 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 9 recorded · 9 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 12 recorded · 12 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 6 · 6 recorded · 6 measured · Source: the US BTS 06:00 · 24 · 24 recorded · 24 measured · Source: the US BTS 07:00 · 44 · 44 recorded · 44 measured · Source: the US BTS 08:00 · 89 · 89 recorded · 88 measured · Source: the US BTS 09:00 · 621 · 621 recorded · 615 measured · Source: the US BTS 10:00 · 164 · 164 recorded · 164 measured · Source: the US BTS 11:00 · 9 · 9 recorded · 9 measured · Source: the US BTS 12:00 · 18 · 18 recorded · 18 measured · Source: the US BTS 13:00 · 66 · 66 recorded · 66 measured · Source: the US BTS 14:00 · 198 · 198 recorded · 198 measured · Source: the US BTS 15:00 · 206 · 206 recorded · 206 measured · Source: the US BTS 16:00 · 788 · 788 recorded · 780 measured · Source: the US BTS 17:00 · 118 · 118 recorded · 116 measured · Source: the US BTS 18:00 · 9 · 9 recorded · 9 measured · Source: the US BTS 19:00 · 21 · 21 recorded · 21 measured · Source: the US BTS 20:00 · 12 · 12 recorded · 12 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—66
06:00Fewer than 200 measured departures—2424
07:00Fewer than 200 measured departures—4444
08:00Fewer than 200 measured departures—8889
09:0091.5%2.8 min615621
10:00Fewer than 200 measured departures—164164
11:00Fewer than 200 measured departures—99
12:00Fewer than 200 measured departures—1818
13:00Fewer than 200 measured departures—6666
14:00Fewer than 200 measured departures—198198
15:0056.3%23.5 min206206
16:0073.6%19.7 min780788
17:00Fewer than 200 measured departures—116118
18:00Fewer than 200 measured departures—99
19:00Fewer than 200 measured departures—2121
20:00Fewer than 200 measured departures—1212
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 78.3% · 356 recorded · 355 measured · Source: the US BTS Tuesday · 80.6% · 312 recorded · 309 measured · Source: the US BTS Wednesday · 79.3% · 308 recorded · 304 measured · Source: the US BTS Thursday · 77.5% · 349 recorded · 346 measured · Source: the US BTS Friday · 77.4% · 364 recorded · 362 measured · Source: the US BTS Saturday · 80.7% · 334 recorded · 331 measured · Source: the US BTS Sunday · 72.4% · 370 recorded · 369 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 12.1 min · 356 recorded · 355 measured · Source: the US BTS Tuesday · 12.2 min · 312 recorded · 309 measured · Source: the US BTS Wednesday · 12.9 min · 308 recorded · 304 measured · Source: the US BTS Thursday · 10.8 min · 349 recorded · 346 measured · Source: the US BTS Friday · 17.6 min · 364 recorded · 362 measured · Source: the US BTS Saturday · 9.9 min · 334 recorded · 331 measured · Source: the US BTS Sunday · 14.4 min · 370 recorded · 369 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 356 · 356 recorded · 355 measured · Source: the US BTS Tuesday · 312 · 312 recorded · 309 measured · Source: the US BTS Wednesday · 308 · 308 recorded · 304 measured · Source: the US BTS Thursday · 349 · 349 recorded · 346 measured · Source: the US BTS Friday · 364 · 364 recorded · 362 measured · Source: the US BTS Saturday · 334 · 334 recorded · 331 measured · Source: the US BTS Sunday · 370 · 370 recorded · 369 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday78.3%12.1 min355356
Tuesday80.6%12.2 min309312
Wednesday79.3%12.9 min304308
Thursday77.5%10.8 min346349
Friday77.4%17.6 min362364
Saturday80.7%9.9 min331334
Sunday72.4%14.4 min369370

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · 84.2% · 234 recorded · 221 measured · Source: the US BTS Feb · 81.5% · 222 recorded · 222 measured · Source: the US BTS Mar · 81.3% · 248 recorded · 246 measured · Source: the US BTS Apr · 76.9% · 238 recorded · 238 measured · Source: the US BTS May · 75.1% · 221 recorded · 221 measured · Source: the US BTS Jun · 69.1% · 234 recorded · 233 measured · Source: the US BTS Jul · 67.9% · 246 recorded · 246 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 100 recorded · 100 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 94 recorded · 94 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 170 recorded · 170 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 198 recorded · 197 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 188 recorded · 188 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 5.3 min · 234 recorded · 221 measured · Source: the US BTS Feb · 12.0 min · 222 recorded · 222 measured · Source: the US BTS Mar · 8.0 min · 248 recorded · 246 measured · Source: the US BTS Apr · 15.1 min · 238 recorded · 238 measured · Source: the US BTS May · 19.6 min · 221 recorded · 221 measured · Source: the US BTS Jun · 16.5 min · 234 recorded · 233 measured · Source: the US BTS Jul · 23.5 min · 246 recorded · 246 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 100 recorded · 100 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 94 recorded · 94 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 170 recorded · 170 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 198 recorded · 197 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 188 recorded · 188 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 234 · 234 recorded · 221 measured · Source: the US BTS Feb · 222 · 222 recorded · 222 measured · Source: the US BTS Mar · 248 · 248 recorded · 246 measured · Source: the US BTS Apr · 238 · 238 recorded · 238 measured · Source: the US BTS May · 221 · 221 recorded · 221 measured · Source: the US BTS Jun · 234 · 234 recorded · 233 measured · Source: the US BTS Jul · 246 · 246 recorded · 246 measured · Source: the US BTS Aug · 100 · 100 recorded · 100 measured · Source: the US BTS Sep · 94 · 94 recorded · 94 measured · Source: the US BTS Oct · 170 · 170 recorded · 170 measured · Source: the US BTS Nov · 198 · 198 recorded · 197 measured · Source: the US BTS Dec · 188 · 188 recorded · 188 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan84.2%5.3 min221234
Feb81.5%12.0 min222222
Mar81.3%8.0 min246248
Apr76.9%15.1 min238238
May75.1%19.6 min221221
Jun69.1%16.5 min233234
Jul67.9%23.5 min246246
AugFewer than 200 measured departures—100100
SepFewer than 200 measured departures—9494
OctFewer than 200 measured departures—170170
NovFewer than 200 measured departures—197198
DecFewer than 200 measured departures—188188

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 77.3% 1,850
  • Delayed >15 min 22.0% 526
  • Cancelled 0.7% 17
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

17
17 of 17
Flight numbersBy direction DeparturesOn time
UA557 CHS → DEN 615 76.2%
UA1003 DEN → CHS 530 91.5%
UA2476 DEN → CHS 77 80.3%
WN3263 DEN → CHS 69 73.1%
WN2012 CHS → DEN 60 65.0%
WN1142 DEN → CHS 57 43.9%
WN2298 DEN → CHS 57 63.2%
UA1554 DEN → CHS 54 96.3%
UA1818 CHS → DEN 53 92.5%
WN4517 DEN → CHS 53 67.9%
WN2870 DEN → CHS 52 48.1%
WN1155 CHS → DEN 50 100.0%
WN2576 CHS → DEN 50 68.0%
UA2757 CHS → DEN 37 67.6%
UA396 DEN → CHS 37 76.5%
WN234 CHS → DEN 36 80.6%
WN2488 CHS → DEN 33 66.7%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 122 −1.6% 0 63.9%
June 2026 114 −4.2% 0 69.3%
May 2026 97 −21.8% 0 84.5%
April 2026 118 −1.7% 0 80.5%
March 2026 122 −1.6% 2 83.6%
February 2026 110 −1.8% 0 77.3%
January 2026 111 +0.9% 3 91.0%
December 2025 92 −4.2% 0 78.3%
November 2025 95 −6.9% 1 86.3%
October 2025 104 +57.6% 0 64.4%
September 2025 94 0 89.4%
August 2025 100 0 75.0%
July 2025 124 0 71.8%
June 2025 119 1 68.9%
May 2025 124 0 67.7%
April 2025 120 0 73.3%
March 2025 124 0 79.0%
February 2025 112 0 85.7%
January 2025 110 10 77.3%
December 2024 96 0 82.3%
November 2024 102 0 81.4%
October 2024 66 0 97.0%

How to read this chart

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