BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
RDUBWI

Raleigh/Durham, NC (RDU) to Baltimore, MD (BWI) flight delay odds

Historically, 83.7% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,800 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
83.7%arrived on time
8.3%30+ min late
2.3%cancelled
1,800scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.2%all scheduled flights
120+ minutes late2.1%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+0.8 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning47292.6%2.5%3.2%
Late morning30392.1%2.0%0.3%
Afternoon56984.9%9.0%0.9%
Evening45667.3%17.8%4.6%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday27680.4%10.1%3.6%
Tuesday26086.9%5.4%0.8%
Wednesday24988.8%5.2%2.0%
Thursday27681.2%11.6%1.4%
Friday27588.4%6.2%2.2%
Saturday19690.3%4.1%1.5%
Sunday26872.0%14.2%4.5%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,78883.7%8.2%2.3%
Spirit Airlines1275.0%25.0%0.0%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202516971.0%17.2%4.7%
August 202515086.0%9.3%1.3%
September 202514191.5%5.0%0.0%
October 202516681.3%10.2%0.0%
November 202516089.4%3.1%3.8%
December 202516184.5%5.6%1.2%
January 202613281.8%5.3%7.6%
February 202612383.7%5.7%6.5%
March 202614977.2%10.7%2.7%
April 202614692.5%5.5%0.0%
May 202614986.6%10.1%0.0%
June 202615480.5%10.4%1.3%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline19.5%
Late aircraft52.6%
National airspace26.2%
Weather1.0%
Security0.7%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.