BWI to RDU flight delays
Baltimore, MD (BWI) Raleigh/Durham, NC (RDU) · 256 miles
1,801 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
80.89%
Arrived on time
Within 15 minutes of schedule
2.39%
Cancelled
Share of scheduled flights
59 min
When late, late by
Average across delayed arrivals
12 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In September it ran 18.4 points more punctual than in July — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
This route does better than its own airport. Departures from BWI overall run 7.8 points less punctual than this particular one — so whatever congestion BWI has, this route is largely escaping it.
Only Southwest Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
The Baltimore to Raleigh/Durham route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over January 2025 – August 2026, Southwest Airlines arrived on time most often on BWI to RDU. Flights ran closest to schedule in September and worst in July.
Every airline on BWI to RDU
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 1,789 | 80.81% | 2.4% | 59 min | C |
| Spirit Airlines | 12 | 91.67% | 0% | 184 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
RDU to BWI Raleigh/Durham back to Baltimore 85.76% on time BCommon questions
Are flights from Baltimore to Raleigh/Durham usually delayed?
80.89% of flights on the BWI to RDU route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Baltimore to Raleigh/Durham?
Only Southwest Airlines appears in the published record on this route, with 1,789 flights and 80.81% arriving on time.
How often are BWI to RDU flights cancelled?
2.39% of scheduled flights did not operate — about 24 in every thousand. That is in the normal range.
What is the best month to fly Baltimore to Raleigh/Durham?
September, when 89.4% of flights arrived on time. The worst was July at 71%.
When BWI to RDU flights are late, how late are they?
About 59 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on BWI to RDU during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →