Route profile
PHX→BWI
Flight reliability, delays and best times to fly from Phoenix to Baltimore, 1,999 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 79% of comparable major US routes (4,598 compared)
Calculated from 3,827 flights. How this is calculated · What counts as on time
PHX → BWI arrives on time 79.5% of the time; the return trip, BWI → PHX, arrives on time 75.0% of the time, a 4.4-point gap between the two directions of the same city pair.
PHX → BWI spends 17.9 minutes on the ground on a 1,999-mile trip: 12.3 minutes from pushback to wheels-up at PHX 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 PHX to BWI differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
PHX to BWI struggles most at 4 PM: 56.7% of its flights scheduled then arrive on time, 16.6 points behind the 73.3% on routes of similar length at the same hour. Against all other routes the gap is 14 points.
PHX to BWI is at its best against routes of similar length for flights scheduled at 9 PM: 86.0% arrive on time, 11.8 points ahead of the 74.2% those routes manage at that hour. Against all other routes the gap is 16.5 points.
PHX to BWI holds up on Saturdays better than routes of similar length do: 82.9% on time to their 79.2%, a 3.7 points lead. Against all other routes the gap is 3.8 points.
February is kinder to PHX to BWI than to routes of similar length: 87.7% on time against 81.9%, 5.8 points better. Against all other routes the gap is 6.3 points.
Southwest Airlines does better on PHX to BWI than on its routes of similar length: 80.1% on time here, 74.7% there, 5.4 points apart. Against all other routes the gap is 2.7 points.
PHX to BWI against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 4 PM departures | 56.7% | routes of similar length | 73.3% | −16.6 pts | 127 here, 59,490 there |
| Hour: 9 PM departures | 86.0% | routes of similar length | 74.2% | +11.8 pts | 228 here, 37,913 there |
| Weekday: Saturday | 82.9% | routes of similar length | 79.2% | +3.7 pts | 514 here, 152,748 there |
| Month: February | 87.7% | routes of similar length | 81.9% | +5.8 pts | 277 here, 73,217 there |
| Airline: Southwest Airlines | 80.1% | routes of similar length | 74.7% | +5.4 pts | 3,626 here, 140,732 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 1,999 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
30 min late
against a median of 3 min early
Percentiles over 3,827 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at BWI after arriving from PHX.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 42% | Likely to miss |
| 45 min | 19% | High risk |
| 60 min | 9.6% | Some risk |
| 90 min | 3.9% | Low risk |
| 120 min | 2.0% | 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 0.78% of the time and diverts 0.39% of the time, which a late arrival never shows up in.
Chance of missing is the share of 3,782 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 3,827 operations.
Any other layover length: connection checker.
Best time to fly
PHX → BWI flights departing 5–9 AM arrived on time 91.2% of the time, against 65.0% for 3–6 PM departures, a gap of 26.2 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 93.6% on time from 723 flights
- 6 AM: 92.5% on time from 255 flights
- 7 AM: 81.5% on time from 186 flights
- 8 AM: too few flights to score
- 9 AM: 76.6% on time from 193 flights
- 10 AM: 79.7% on time from 142 flights
- 11 AM: 79.2% on time from 150 flights
- 12 PM: 77.9% on time from 191 flights
- 1 PM: 67.8% on time from 320 flights
- 2 PM: 60.5% on time from 130 flights
- 3 PM: 75.9% on time from 146 flights
- 4 PM: 56.7% on time from 130 flights
- 5 PM: 61.3% on time from 138 flights
- 6 PM: 72.4% on time from 404 flights
- 7 PM to 8 PM: too few flights to score
- 9 PM: 86.0% on time from 230 flights
- 10 PM: 85.5% on time from 167 flights
- 11 PM: 80.0% on time from 177 flights
Why PHX → 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 PHX → BWI. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on PHX → BWI, at 42.7%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 91.2% of the time and 3–6 PM departures 65.0%.
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 | 3,668 | 80.1% | 0.74% | -3 min | 3.5% |
Weekly and seasonal patterns
By day of week
Saturday is historically the most reliable day and Friday the least, a gap of 5.9 percentage points.
By month
- Jan: 82.7%
- Feb: 87.7%
- Mar: 79.6%
- Apr: 80.9%
- May: 79.3%
- Jun: 72.4%
- Jul: 68.0%
- Aug: 75.0%
- Sep: 83.6%
- Oct: 80.6%
- Nov: 86.5%
- Dec: 79.2%
July is historically the weakest month and February the strongest, a spread of 19.7 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: too few flights to score (102)
- August 2023: too few flights to score (99)
- September 2023: 81.4% from 120 flights
- October 2023: 77.2% from 128 flights
- November 2023: too few flights to score (103)
- December 2023: too few flights to score (107)
- January 2024: too few flights to score (92)
- February 2024: too few flights to score (83)
- March 2024: too few flights to score (92)
- April 2024: too few flights to score (90)
- May 2024: too few flights to score (93)
- June 2024: too few flights to score (89)
- July 2024: too few flights to score (92)
- August 2024: too few flights to score (105)
- September 2024: too few flights to score (103)
- October 2024: too few flights to score (115)
- November 2024: too few flights to score (104)
- December 2024: too few flights to score (105)
- January 2025: too few flights to score (96)
- February 2025: too few flights to score (102)
- March 2025: 85.2% from 125 flights
- April 2025: too few flights to score (111)
- May 2025: too few flights to score (109)
- June 2025: too few flights to score (111)
- July 2025: too few flights to score (115)
- August 2025: too few flights to score (105)
- September 2025: too few flights to score (103)
- October 2025: too few flights to score (119)
- November 2025: too few flights to score (104)
- December 2025: too few flights to score (107)
- January 2026: too few flights to score (96)
- February 2026: too few flights to score (97)
- March 2026: too few flights to score (113)
- April 2026: too few flights to score (118)
- May 2026: 77.2% from 123 flights
- June 2026: too few flights to score (89)
- July 2026: too few flights to score (62)
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 79.6% against 83.5% in the 12 months before — declining by 3.9 percentage points.
Data and methodology
Calculated by FlyerIntel from 3,827 PHX → 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