Route profile
AUS→BWI
Flight reliability, delays and best times to fly from Austin to Baltimore, 1,342 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 67% of comparable major US routes (4,598 compared)
Calculated from 4,060 flights. How this is calculated · What counts as on time
AUS → BWI arrives on time 79.5% of the time; the return trip, BWI → AUS, arrives on time 75.4% of the time, a 4.1-point gap between the two directions of the same city pair.
AUS → BWI spends 18.6 minutes on the ground on a 1,342-mile trip: 13.0 minutes from pushback to wheels-up at AUS and 5.6 minutes from touchdown to gate at BWI.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
On-time performance swings unusually widely by time of day here, wider than 90% of 4,023 comparable routes.
95.0% on time for 5–9 AM departures, against 64.4% for 3–6 PM.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,023 in the comparison.
What sets this route apart
Where AUS to BWI differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
AUS to BWI struggles most at 4 PM: 57.2% of its flights scheduled then arrive on time, 13.1 points behind the 70.3% on routes of similar length at the same hour. Against all other routes the gap is 13.5 points.
AUS to BWI is at its best against routes of similar length for flights scheduled at 8 PM: 77.0% arrive on time, 11.6 points ahead of the 65.4% those routes manage at that hour. Against all other routes the gap is 9.6 points.
AUS to BWI holds up on Saturdays better than routes of similar length do: 84.9% on time to their 78.6%, a 6.3 points lead. Against all other routes the gap is 5.8 points.
August is kinder to AUS to BWI than to routes of similar length: 84.6% on time against 76.5%, 8.1 points better. Against all other routes the gap is 8.1 points.
In October, AUS to BWI runs 4.1 points below routes of similar length, 79.0% on time to 83.1%.
AUS to BWI against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 4 PM departures | 57.2% | routes of similar length | 70.3% | −13.1 pts | 444 here, 103,037 there |
| Hour: 8 PM departures | 77.0% | routes of similar length | 65.4% | +11.6 pts | 222 here, 61,420 there |
| Weekday: Saturday | 84.9% | routes of similar length | 78.6% | +6.3 pts | 477 here, 217,462 there |
| Month: August | 84.6% | routes of similar length | 76.5% | +8.1 pts | 356 here, 137,416 there |
| Month: October | 79.0% | routes of similar length | 83.1% | −4.1 pts | 348 here, 139,533 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 1,342 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.
When it goes wrong
July 2023 – July 2026
34 min late
against a median of 4 min early
Percentiles over 4,060 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at BWI after arriving from AUS.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 39% | Likely to miss |
| 45 min | 20% | High risk |
| 60 min | 11% | Some risk |
| 90 min | 5.4% | Some risk |
| 120 min | 3.0% | Low 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 1.08% of the time and diverts 0.37% of the time, which a late arrival never shows up in.
Chance of missing is the share of 4,001 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 34 minutes late (90th-percentile gate arrival delay), over 4,060 operations.
Any other layover length: connection checker.
Best time to fly
AUS → BWI flights departing 5–9 AM arrived on time 95.0% of the time, against 64.4% for 3–6 PM departures, a gap of 30.6 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 97.0% on time from 836 flights
- 6 AM: 91.6% on time from 281 flights
- 7 AM to 8 AM: too few flights to score
- 9 AM: 92.7% on time from 123 flights
- 10 AM: 84.4% on time from 231 flights
- 11 AM: 82.9% on time from 426 flights
- 12 PM: 77.6% on time from 256 flights
- 1 PM to 2 PM: too few flights to score
- 3 PM: 74.5% on time from 432 flights
- 4 PM: 57.2% on time from 452 flights
- 5 PM: 58.7% on time from 197 flights
- 6 PM: too few flights to score
- 7 PM: 65.0% on time from 300 flights
- 8 PM: 77.0% on time from 222 flights
- 9 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why AUS → BWI 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 AUS → BWI. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on AUS → BWI, at 52.6%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 95.0% of the time and 3–6 PM departures 64.4%.
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 |
|---|---|---|---|---|---|
| Southwest Airlines | 4,001 | 79.6% | 1.07% | -4 min | 5.2% |
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Thursday the least, a gap of 10.7 percentage points.
By month
- Jan: 86.6%
- Feb: 85.4%
- Mar: 77.2%
- Apr: 79.7%
- May: 72.9%
- Jun: 71.9%
- Jul: 73.2%
- Aug: 84.6%
- Sep: 87.0%
- Oct: 79.0%
- Nov: 84.3%
- Dec: 78.5%
June is historically the weakest month and September the strongest, a spread of 15.1 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 78.9% from 148 flights
- August 2023: 84.4% from 144 flights
- September 2023: too few flights to score (118)
- October 2023: 86.7% from 120 flights
- November 2023: too few flights to score (116)
- December 2023: 77.7% from 121 flights
- January 2024: too few flights to score (91)
- February 2024: too few flights to score (79)
- March 2024: too few flights to score (112)
- April 2024: too few flights to score (116)
- May 2024: 75.0% from 120 flights
- June 2024: too few flights to score (115)
- July 2024: too few flights to score (118)
- August 2024: too few flights to score (111)
- September 2024: too few flights to score (107)
- October 2024: too few flights to score (109)
- November 2024: too few flights to score (103)
- December 2024: too few flights to score (104)
- January 2025: too few flights to score (93)
- February 2025: too few flights to score (74)
- March 2025: too few flights to score (96)
- April 2025: too few flights to score (108)
- May 2025: too few flights to score (116)
- June 2025: too few flights to score (115)
- July 2025: too few flights to score (119)
- August 2025: too few flights to score (109)
- September 2025: too few flights to score (107)
- October 2025: 73.3% from 120 flights
- November 2025: too few flights to score (105)
- December 2025: too few flights to score (106)
- January 2026: too few flights to score (93)
- February 2026: too few flights to score (83)
- March 2026: too few flights to score (97)
- April 2026: too few flights to score (112)
- May 2026: too few flights to score (119)
- June 2026: too few flights to score (116)
- July 2026: 71.7% from 120 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 76.9% against 79.8% in the 12 months before — declining by 2.9 percentage points.
Data and methodology
Calculated by FlyerIntel from 4,060 AUS → BWI 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