Baltimore (BWI) to Portland (PDX): On-Time Performance
Data through May 2026
Baltimore (BWI) to Portland (PDX) is a thinner route than most in this dataset — 138 departures over the past year, roughly 3 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 75% arrived on time.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 2.0%
- Flights/day
- 0.38
- last 12 months
- Duration
- 5h 40m
- scheduled
- Distance
- 2,358 mi
Best airline from BWI to PDX
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 76% | 13 min | 1.7% | 119 |
| Spirit Airlines | 72% | 25 min | 2.7% | 113 |
Monthly on-time trend
Best time to fly from BWI to PDX
Aim for departures around 11 a.m. (79% on-time); avoid 1 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 68% | 24 min |
| Tuesdaybest | 88% | 4 min |
| Wednesday | 79% | 10 min |
| Thursday | 71% | 20 min |
| Friday | 65% | 30 min |
| Saturday | 78% | 13 min |
| Sunday | 79% | 23 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft26%
- Airline operations35%
- National airspace system32%
- Weather6%
Frequently asked questions
- How often are flights from BWI to PDX delayed?
- 25% of BWI–PDX flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 18 minutes.
- Which airline is most reliable from BWI to PDX?
- Southwest Airlines has the best on-time record on this route at 76%, based on 119 flights. 2 airlines flew BWI–PDX frequently enough to compare in this period.
- What is the best time of day to fly from BWI to PDX?
- Departures around 11 a.m. have the best record (79% on-time), while departures around 1 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BWI to PDX?
- The scheduled BWI–PDX flight time averages 5h 40m over 2,358 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are BWI to PDX flights cancelled?
- 2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What day of the week is most reliable for BWI to PDX?
- Tuesday flights have the best record at 88% on-time. Day-of-week differences on this route are meaningful — Friday trails at 65%.
Explore related pages
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Related guides
Based on 251 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.