Route profile
JAX→BWI
Flight reliability, delays and best times to fly from Jacksonville to Baltimore, 663 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 74% of comparable major US routes (4,598 compared)
Calculated from 4,290 flights. How this is calculated · What counts as on time
JAX → BWI arrives on time 82.2% of the time; the return trip, BWI → JAX, arrives on time 74.5% of the time, a 7.7-point gap between the two directions of the same city pair.
JAX → BWI spends 17.7 minutes on the ground on a 663-mile trip: 12.1 minutes from pushback to wheels-up at JAX and 5.6 minutes from touchdown to gate at BWI.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What sets this route apart
Where JAX to BWI differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
JAX to BWI is at its best against routes of similar length for flights scheduled at 8 AM: 96.1% arrive on time, 10 points ahead of the 86.1% those routes manage at that hour. Against all other routes the gap is 10.2 points.
JAX to BWI struggles most at 7 PM: 61.0% of its flights scheduled then arrive on time, 6.9 points behind the 67.9% on routes of similar length at the same hour. Against all other routes the gap is 6.8 points.
JAX to BWI holds up on Thursdays better than routes of similar length do: 86.8% on time to their 76.7%, a 10.1 points lead. Against all other routes the gap is 10 points.
September is kinder to JAX to BWI than to routes of similar length: 90.6% on time against 82.5%, 8.1 points better. Against all other routes the gap is 8.2 points.
Southwest Airlines does better on JAX to BWI than on its routes of similar length: 82.2% on time here, 77.7% there, 4.5 points apart. Against all other routes the gap is 4.8 points.
JAX to BWI against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 8 AM departures | 96.1% | routes of similar length | 86.1% | +10.0 pts | 179 here, 157,331 there |
| Hour: 7 PM departures | 61.0% | routes of similar length | 67.9% | −6.9 pts | 405 here, 126,370 there |
| Weekday: Thursday | 86.8% | routes of similar length | 76.7% | +10.1 pts | 615 here, 333,439 there |
| Month: September | 90.6% | routes of similar length | 82.5% | +8.1 pts | 297 here, 181,213 there |
| Airline: Southwest Airlines | 82.2% | routes of similar length | 77.7% | +4.5 pts | 4,214 here, 529,346 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 663 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.
Why JAX → BWI flights are cancelled
July 2023 – July 2026
JAX → BWI cancelled 63 of 4,290 scheduled flights — about 1 in every 68. The reason filed most often was extreme weather, 81.0% of the cancellations coded on this route — about 1 in every 84 scheduled flights.
Share of cancellations
Of 63 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.
51 cancellations, 81.0% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
6 cancellations, 9.5% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
6 cancellations, 9.5% 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. With only one or two carriers on the route, the split mostly reflects how they file. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
63 coded cancellations were recorded on JAX → BWI; the section appears from 50.
When it goes wrong
July 2023 – July 2026
30 min late
against a median of 6 min early
Percentiles over 4,290 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at BWI after arriving from JAX.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 35% | Likely to miss |
| 45 min | 17% | High risk |
| 60 min | 9.8% | Some risk |
| 90 min | 4.4% | Low risk |
| 120 min | 2.9% | 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 1.47% of the time and diverts 0.30% of the time, which a late arrival never shows up in.
Chance of missing is the share of 4,214 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 30 minutes late (90th-percentile gate arrival delay), over 4,290 operations.
Any other layover length: connection checker.
Best time to fly
JAX → BWI flights departing 5–9 AM arrived on time 95.0% of the time, against 67.4% for 6–9 PM departures, a gap of 27.6 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 93.5% on time from 216 flights
- 7 AM: 94.9% on time from 697 flights
- 8 AM: 96.1% on time from 183 flights
- 9 AM: too few flights to score
- 10 AM: 85.6% on time from 222 flights
- 11 AM: 87.0% on time from 710 flights
- 12 PM: 87.9% on time from 175 flights
- 1 PM: too few flights to score
- 2 PM: 76.4% on time from 179 flights
- 3 PM: 76.4% on time from 259 flights
- 4 PM: 68.9% on time from 286 flights
- 5 PM: 79.1% on time from 349 flights
- 6 PM: 73.5% on time from 425 flights
- 7 PM: 61.0% on time from 423 flights
- 8 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why JAX → 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 JAX → BWI. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on JAX → BWI, at 52.2%: 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 6–9 PM departures 67.4%.
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 | 4,290 | 82.2% | 1.47% | -6 min | 4.4% |
Weekly and seasonal patterns
By day of week
Thursday is historically the most reliable day and Sunday the least, a gap of 10.2 percentage points.
By month
- Jan: 86.0%
- Feb: 86.6%
- Mar: 84.6%
- Apr: 81.2%
- May: 79.0%
- Jun: 74.7%
- Jul: 70.3%
- Aug: 76.1%
- Sep: 90.6%
- Oct: 88.7%
- Nov: 91.0%
- Dec: 82.4%
July is historically the weakest month and November the strongest, a spread of 20.7 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 68.3% from 124 flights
- August 2023: too few flights to score (109)
- September 2023: too few flights to score (90)
- October 2023: too few flights to score (116)
- November 2023: 91.7% from 121 flights
- December 2023: 89.1% from 129 flights
- January 2024: 81.9% from 121 flights
- February 2024: too few flights to score (112)
- March 2024: 86.1% from 123 flights
- April 2024: too few flights to score (119)
- May 2024: 82.9% from 124 flights
- June 2024: 76.7% from 120 flights
- July 2024: 72.1% from 123 flights
- August 2024: too few flights to score (112)
- September 2024: too few flights to score (106)
- October 2024: too few flights to score (108)
- November 2024: too few flights to score (117)
- December 2024: 77.9% from 131 flights
- January 2025: too few flights to score (101)
- February 2025: too few flights to score (92)
- March 2025: 88.9% from 120 flights
- April 2025: 84.2% from 120 flights
- May 2025: 83.6% from 124 flights
- June 2025: 75.9% from 120 flights
- July 2025: 66.7% from 123 flights
- August 2025: too few flights to score (111)
- September 2025: too few flights to score (107)
- October 2025: 88.3% from 120 flights
- November 2025: 89.2% from 130 flights
- December 2025: 80.5% from 134 flights
- January 2026: too few flights to score (101)
- February 2026: too few flights to score (92)
- March 2026: 78.6% from 120 flights
- April 2026: 76.4% from 123 flights
- May 2026: 70.9% from 128 flights
- June 2026: too few flights to score (109)
- July 2026: too few flights to score (110)
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 80.7% against 82.3% in the 12 months before — declining by 1.6 percentage points.
Data and methodology
Calculated by FlyerIntel from 4,290 JAX → 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