Route profile
CHS→DFW
Flight reliability, delays and best times to fly from Charleston to Dallas–Fort Worth, 987 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 23% of comparable major US routes (4,598 compared)
Calculated from 3,797 flights. How this is calculated · What counts as on time
CHS → DFW arrives on time 78.2% of the time; the return trip, DFW → CHS, arrives on time 70.3% of the time, a 7.9-point gap between the two directions of the same city pair.
CHS → DFW spends 31.1 minutes on the ground on a 987-mile trip: 15.8 minutes from pushback to wheels-up at CHS and 15.3 minutes from touchdown to gate at DFW.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What sets this route apart
Where CHS to DFW differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
CHS to DFW is at its best against routes of similar length for flights scheduled at 2 PM: 82.3% arrive on time, 9 points ahead of the 73.3% those routes manage at that hour. Against all other routes the gap is 7.7 points.
CHS to DFW struggles most at 6 AM: 81.5% of its flights scheduled then arrive on time, 9 points behind the 90.5% on routes of similar length at the same hour. Against all other routes the gap is 9.3 points.
CHS to DFW holds up on Thursdays better than routes of similar length do: 79.7% on time to their 75.9%, a 3.8 points lead.
December is kinder to CHS to DFW than to routes of similar length: 86.8% on time against 77.7%, 9.1 points better. Against all other routes the gap is 8 points.
American Airlines does better on CHS to DFW than on its routes of similar length: 76.7% on time here, 73.9% there, 2.8 points apart.
CHS to DFW against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 2 PM departures | 82.3% | routes of similar length | 73.3% | +9.0 pts | 175 here, 186,240 there |
| Hour: 6 AM departures | 81.5% | routes of similar length | 90.5% | −9.0 pts | 195 here, 226,846 there |
| Weekday: Thursday | 79.7% | routes of similar length | 75.9% | +3.8 pts | 557 here, 453,260 there |
| Month: December | 86.8% | routes of similar length | 77.7% | +9.1 pts | 280 here, 257,285 there |
| Airline: American Airlines | 76.7% | routes of similar length | 73.9% | +2.8 pts | 2,959 here, 576,572 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 987 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
CHS to DFW in context
This route against CHS and DFW as a whole, against similar routes from CHS, and against its own first year, July 2023 – July 2026.
Leaving CHS, CHS to DFW is on time 78.2% of the time, 2.5 points worse than the airport’s other departures at CHS (80.7%, from 71,873 flights).
CHS to DFW cancels 2.29% of its scheduled flights, 1.24 points above the 1.05% on 6 other routes from CHS of similar length (within 15% of 987 miles).
CHS to DFW arrived on time 80.6% of the time in its latest twelve months (August 2025 to July 2026), 4.3 points above the 76.3% of its first twelve (July 2023 to June 2024).
Of the 3,380 flights scheduled in hours with at least 120 flights, 7 AM is the busiest hour with 903 (26.7%), 87.3% of them on time, and 5 AM the quietest with 123 (3.6%), 87.7% of them on time.
Airport comparisons take this route’s flights out of the airport total. Length means within 15% of this route’s distance, with at least 3 other routes from the same origin. On-time gaps are stated at 2 points and 2 standard errors, cancellation gaps at 0.5 points and 2 standard errors, and every group needs 750 flights. These are differences in the flights counted, not causes.
Why CHS → DFW flights are cancelled
July 2023 – July 2026
CHS → DFW cancelled 87 of 3,797 scheduled flights — about 1 in every 44. The reason filed most often was extreme weather, 88.5% of the cancellations coded on this route — about 1 in every 49 scheduled flights.
Share of cancellations
Of 87 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
77 cancellations, 88.5% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
7 cancellations, 8.0% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
3 cancellations, 3.4% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
87 coded cancellations were recorded on CHS → DFW; the section appears from 50.
When it goes wrong
July 2023 – July 2026
52 min late
against a median of 8 min early
CHS → DFW has an average that understates its risk: a typical arrival is 8 min early, but the worst tenth are 60 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 3,797 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at DFW after arriving from CHS.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 35% | Likely to miss |
| 45 min | 21% | High risk |
| 60 min | 15% | High risk |
| 90 min | 8.6% | Some risk |
| 120 min | 5.5% | Some risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 2.29% of the time and diverts 0.58% of the time, which a late arrival never shows up in.
Chance of missing is the share of 3,688 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 52 minutes late (90th-percentile gate arrival delay), over 3,797 operations.
Any other layover length: connection checker.
Best time to fly
CHS → DFW flights departing 5–9 AM arrived on time 86.3% of the time, against 65.5% for 6–9 PM departures, a gap of 20.8 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 87.7% on time from 123 flights
- 6 AM: 81.5% on time from 204 flights
- 7 AM: 87.3% on time from 903 flights
- 8 AM to 11 AM: too few flights to score
- 12 PM: 85.8% on time from 327 flights
- 1 PM: too few flights to score
- 2 PM: 82.3% on time from 179 flights
- 3 PM: 74.9% on time from 772 flights
- 4 PM: 69.9% on time from 173 flights
- 5 PM to 6 PM: too few flights to score
- 7 PM: 64.5% on time from 699 flights
- 8 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why CHS → DFW runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for CHS → DFW. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on CHS → DFW, at 49.8%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 86.3% of the time and 6–9 PM departures 65.5%.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| American Airlines | 3,052 | 76.7% | 2.49% | -7 min | 9.5% |
| Envoy Air | 452 | 86.9% | 1.55% | -11 min | 4.5% |
| PSA Airlines | 246 | 80.5% | 1.22% | -13 min | 7.5% |
American Airlines flew 81.4% of the 3,750 flights listed. American Airlines cancelled 2.49% of its flights here against 1.22% for PSA Airlines.
Envoy Air arrived on time 10.2 percentage points more often than American Airlines on this route.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Monday the least, a gap of 7.7 percentage points.
By month
- Jan: 79.6%
- Feb: 80.5%
- Mar: 73.5%
- Apr: 75.9%
- May: 70.0%
- Jun: 72.0%
- Jul: 76.7%
- Aug: 79.6%
- Sep: 78.2%
- Oct: 85.1%
- Nov: 87.0%
- Dec: 86.8%
May is historically the weakest month and November the strongest, a spread of 17.0 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 79.7% from 128 flights
- August 2023: too few flights to score (109)
- September 2023: too few flights to score (104)
- October 2023: too few flights to score (90)
- November 2023: too few flights to score (84)
- December 2023: too few flights to score (79)
- January 2024: too few flights to score (80)
- February 2024: too few flights to score (81)
- March 2024: too few flights to score (93)
- April 2024: too few flights to score (113)
- May 2024: 68.8% from 123 flights
- June 2024: too few flights to score (117)
- July 2024: 75.9% from 147 flights
- August 2024: too few flights to score (97)
- September 2024: too few flights to score (96)
- October 2024: too few flights to score (112)
- November 2024: too few flights to score (86)
- December 2024: too few flights to score (98)
- January 2025: too few flights to score (82)
- February 2025: too few flights to score (68)
- March 2025: too few flights to score (88)
- April 2025: too few flights to score (86)
- May 2025: too few flights to score (119)
- June 2025: 72.3% from 142 flights
- July 2025: 75.7% from 148 flights
- August 2025: too few flights to score (85)
- September 2025: too few flights to score (68)
- October 2025: too few flights to score (91)
- November 2025: too few flights to score (108)
- December 2025: too few flights to score (110)
- January 2026: too few flights to score (99)
- February 2026: too few flights to score (75)
- March 2026: too few flights to score (106)
- April 2026: too few flights to score (114)
- May 2026: 74.6% from 122 flights
- June 2026: 73.5% from 124 flights
- July 2026: 75.8% from 125 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 80.5% against 78.0% in the 12 months before — improving by 2.5 percentage points.
Data and methodology
Calculated by FlyerIntel from 3,797 CHS → DFW flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed