Route profile
ORD→DCA
Flight reliability, delays and best times to fly from Chicago to Washington, 612 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 10% of comparable major US routes (4,598 compared)
Calculated from 20,159 flights. How this is calculated
ORD → DCA arrives on time 73.0% of the time; the return trip, DCA → ORD, arrives on time 79.0% of the time, a 6.0-point gap between the two directions of the same city pair.
ORD → DCA spends 29.5 minutes on the ground on a 612-mile trip: 23.9 minutes from pushback to wheels-up at ORD and 5.7 minutes from touchdown to gate at DCA.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Why ORD → DCA flights are cancelled
July 2023 – July 2026
ORD → DCA cancelled 460 of 20,159 scheduled flights — about 1 in every 44. The reason filed most often was extreme weather, 71.1% of the cancellations coded on this route — about 1 in every 62 scheduled flights.
Share of cancellations
Of 460 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.
327 cancellations, 71.1% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
84 cancellations, 18.3% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
49 cancellations, 10.7% 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.
460 coded cancellations were recorded on ORD → DCA; the section appears from 50.
When it goes wrong
July 2023 – July 2026
63 min late
against a median of 3 min early
ORD → DCA has an average that understates its risk: a typical arrival is 3 min early, but the worst tenth are 66 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 20,159 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at DCA after arriving from ORD.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 43% | Likely to miss |
| 45 min | 26% | High risk |
| 60 min | 18% | High risk |
| 90 min | 10% | Some risk |
| 120 min | 6.7% | 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 2.28% of the time and diverts 0.55% of the time, which a late arrival never shows up in.
Chance of missing is the share of 19,588 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 63 minutes late (90th-percentile gate arrival delay), over 20,159 operations.
Any other layover length: connection checker.
Best time to fly
ORD → DCA flights departing 5–9 AM arrived on time 86.0% of the time, against 62.3% for 6–9 PM departures, a gap of 23.7 percentage points.
By day and hour
On-time arrival rate for each weekday and scheduled departure hour, in local time at the departure airport (ORD).
Hour of departure matters more than day of the week: hourly averages sit a typical 9.2 points from the route-wide rate, weekday averages 2.9 points.
| Hour | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
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On-time rate, % · stronger color, fewer on time
- 40–49
- 50–59
- 60–69
- 70–79
- 80–89
- 90–99
- Fewer than 120 flights, not scored
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · On time is arrival within 15 minutes of schedule. Cells round to whole percentages; the table shows one decimal.
No slot is named best or worst: too few reach 500 flights. Departures before 6 AM and after 9 PM (573 flights) are not drawn: no slot in those hours has enough flights to score.
View as tableHide table
| Hour | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
|---|---|---|---|---|---|---|---|
| 6 AM–7 AM | 81.0% on time312 flights | 86.4% on time312 flights | 87.6% on time309 flights | 85.2% on time311 flights | 82.9% on time306 flights | 92.6% on time153 flights | 92.0% on time284 flights |
| 7 AM–8 AM | 87.7% on time173 flights | 92.0% on time175 flights | 90.6% on time172 flights | 91.9% on time174 flights | 88.1% on time171 flights | 88.4% on time157 flights | 86.7% on time190 flights |
| 8 AM–9 AM | 80.4% on time265 flights | 85.8% on time266 flights | 86.7% on time264 flights | 86.5% on time264 flights | 78.0% on time261 flights | 86.0% on time200 flights | 81.9% on time253 flights |
| 9 AM–10 AM | 76.3% on time197 flights | 81.6% on time198 flights | 82.5% on time197 flights | 81.3% on time195 flights | 74.7% on time196 flights | 74 flights, too few to score | 76.3% on time198 flights |
| 10 AM–11 AM | 110 flights, too few to score | 110 flights, too few to score | 109 flights, too few to score | 109 flights, too few to score | 109 flights, too few to score | 32 flights, too few to score | 104 flights, too few to score |
| 11 AM–12 PM | 65.9% on time261 flights | 74.5% on time266 flights | 71.2% on time265 flights | 68.2% on time263 flights | 67.1% on time263 flights | 73.8% on time261 flights | 71.4% on time260 flights |
| 12 PM–1 PM | 70.4% on time201 flights | 77.9% on time198 flights | 71.8% on time197 flights | 70.8% on time195 flights | 67.5% on time197 flights | 102 flights, too few to score | 68.2% on time200 flights |
| 1 PM–2 PM | 69.6% on time175 flights | 72.9% on time173 flights | 61.1% on time172 flights | 66.5% on time173 flights | 63.4% on time175 flights | 75.5% on time158 flights | 60.7% on time173 flights |
| 2 PM–3 PM | 62.9% on time156 flights | 68.4% on time156 flights | 67.1% on time156 flights | 69.1% on time155 flights | 63.0% on time153 flights | 76.5% on time152 flights | 66.4% on time155 flights |
| 3 PM–4 PM | 73.2% on time202 flights | 75.9% on time204 flights | 69.7% on time205 flights | 69.3% on time198 flights | 68.7% on time205 flights | 70 flights, too few to score | 71.0% on time200 flights |
| 4 PM–5 PM | 64.3% on time220 flights | 63.7% on time218 flights | 64.5% on time216 flights | 60.6% on time215 flights | 59.4% on time221 flights | 101 flights, too few to score | 66.7% on time220 flights |
| 5 PM–6 PM | 76 flights, too few to score | 75 flights, too few to score | 74 flights, too few to score | 76 flights, too few to score | 76 flights, too few to score | 76 flights, too few to score | 80 flights, too few to score |
| 6 PM–7 PM | 64.2% on time186 flights | 57.9% on time183 flights | 51.4% on time183 flights | 54.7% on time179 flights | 55.9% on time182 flights | 75.1% on time178 flights | 61.8% on time182 flights |
| 7 PM–8 PM | 67.8% on time255 flights | 69.4% on time257 flights | 62.3% on time256 flights | 59.1% on time252 flights | 55.0% on time257 flights | 78.2% on time238 flights | 55.0% on time255 flights |
| 8 PM–9 PM | 59.4% on time146 flights | 66.9% on time144 flights | 68.1% on time143 flights | 58.8% on time145 flights | 62.5% on time145 flights | 74.8% on time126 flights | 49.3% on time145 flights |
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 86.3% on time from 1,987 flights
- 7 AM: 89.3% on time from 1,212 flights
- 8 AM: 83.6% on time from 1,773 flights
- 9 AM: 78.5% on time from 1,255 flights
- 10 AM: 84.0% on time from 683 flights
- 11 AM: 70.3% on time from 1,839 flights
- 12 PM: 71.6% on time from 1,290 flights
- 1 PM: 67.0% on time from 1,199 flights
- 2 PM: 67.6% on time from 1,083 flights
- 3 PM: 72.3% on time from 1,284 flights
- 4 PM: 64.0% on time from 1,411 flights
- 5 PM: 67.4% on time from 533 flights
- 6 PM: 60.1% on time from 1,273 flights
- 7 PM: 63.7% on time from 1,770 flights
- 8 PM: 62.6% on time from 994 flights
- 9 PM: 69.1% on time from 525 flights
- 10 PM to 11 PM: too few flights to score
Why ORD → DCA 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 ORD → DCA. Only delays of 15 minutes or more are attributed.
Late-arriving aircraft is the largest cause on ORD → DCA, at 41.7%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 86.0% of the time and 6–9 PM departures 62.3%.
How this route holds up in bad weather
July 2023 – July 2026
Bad weather raises cancellations by a similar amount at both ends of ORD to DCA: 5.5 times the normal rate at ORD and 4.2 times at DCA. Cancelled in bad weather against normal hours: ORD 6.5% against 1.2%, DCA 9.3% against 2.2%. Flights that did leave ORD in bad weather arrived on time 55.7% of the time, against 77.1% in normal hours.
Bad weather and normal hours at the airports
Scheduled departures, July 2023 – July 2026| Departures from | ORD | DCA |
|---|---|---|
| Cancelled in bad weather | 6.5% | 9.3% |
| Cancelled in normal hours | 1.2% | 2.2% |
| Arrived on time, bad weather | 55.7% | 63.5% |
| Arrived on time, normal hours | 77.1% | 78.3% |
| Departures in bad weather | 104,455 | 41,449 |
Of the carriers on this route, United Airlines (3.5% cancelled against 7.4% for the other carriers at ORD) cancelled the fewest departures from ORD in bad weather and SkyWest Airlines (10.7% cancelled against 5.8% for the other carriers at ORD) the most.
This route’s airlines in bad weather at ORD
All departures from ORD| Airline | Bad-weather departures | Cancelled | Other carriers |
|---|---|---|---|
| United Airlines | 31,269 | 3.5%below the others | 7.4% |
| American Airlines | 17,789 | 5.4%below the others | 6.7% |
| Republic Airways | 9,471 | 8.1%above the others | 6.5% |
| SkyWest Airlines | 21,044 | 10.7%above the others | 5.8% |
These are airport figures, not route figures: every scheduled departure from ORD and DCA, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from ORD on every route.
Weather source and limits. In full: ORD (airlines), DCA, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.
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 |
|---|---|---|---|---|---|
| United Airlines | 10,323 | 74.6% | 1.63% | -4 min | 9.4% |
| American Airlines | 7,669 | 70.5% | 2.78% | -1 min | 12.4% |
| Republic Airways | 1,550 | 72.4% | 4.06% | -5 min | 10.7% |
| SkyWest Airlines | 446 | 74.9% | 2.69% | -5 min | 9.7% |
United Airlines flew 51.6% of the 19,988 flights listed. Republic Airways cancelled 4.06% of its flights here against 1.63% for United Airlines.
SkyWest Airlines arrived on time 4.4 percentage points more often than American Airlines on this route.
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
Weekly and seasonal patterns
By day of week
Saturday is historically the most reliable day and Friday the least, a gap of 10.0 percentage points.
By month
- Jan: 74.3%
- Feb: 71.6%
- Mar: 70.0%
- Apr: 75.0%
- May: 67.5%
- Jun: 69.6%
- Jul: 66.0%
- Aug: 69.5%
- Sep: 75.5%
- Oct: 81.7%
- Nov: 80.6%
- Dec: 77.3%
July is historically the weakest month and October the strongest, a spread of 15.7 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 71.2% from 527 flights
- August 2023: 75.4% from 538 flights
- September 2023: 77.5% from 520 flights
- October 2023: 85.8% from 515 flights
- November 2023: 87.4% from 485 flights
- December 2023: 84.6% from 493 flights
- January 2024: 70.9% from 511 flights
- February 2024: 83.8% from 490 flights
- March 2024: 79.4% from 498 flights
- April 2024: 73.6% from 460 flights
- May 2024: 58.4% from 500 flights
- June 2024: 72.2% from 499 flights
- July 2024: 66.0% from 529 flights
- August 2024: 61.2% from 548 flights
- September 2024: 82.1% from 524 flights
- October 2024: 85.0% from 549 flights
- November 2024: 86.3% from 527 flights
- December 2024: 80.3% from 519 flights
- January 2025: 83.2% from 557 flights
- February 2025: 60.7% from 510 flights
- March 2025: 67.2% from 559 flights
- April 2025: 80.1% from 546 flights
- May 2025: 70.7% from 555 flights
- June 2025: 65.0% from 569 flights
- July 2025: 58.7% from 589 flights
- August 2025: 71.9% from 585 flights
- September 2025: 67.6% from 576 flights
- October 2025: 75.0% from 595 flights
- November 2025: 68.9% from 562 flights
- December 2025: 67.7% from 555 flights
- January 2026: 68.7% from 592 flights
- February 2026: 70.5% from 529 flights
- March 2026: 64.4% from 591 flights
- April 2026: 71.3% from 567 flights
- May 2026: 72.0% from 608 flights
- June 2026: 71.6% from 638 flights
- July 2026: 68.3% from 644 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 69.8% against 73.2% in the 12 months before — declining by 3.4 percentage points.
Data and methodology
Calculated by FlyerIntel from 20,159 ORD → DCA 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