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

Minneapolis, MN (MSP) to Washington, DC (IAD) flight delay odds

Historically, 79.8% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 920 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
79.8%arrived on time
12.4%30+ min late
1.0%cancelled
920scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.1%all scheduled flights
120+ minutes late1.5%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+3.5 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 morning20784.1%9.7%0.0%
Late morning13479.1%15.7%1.5%
Afternoon25978.0%12.7%1.2%
Evening32078.8%12.5%1.2%

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
Monday14078.6%15.7%0.7%
Tuesday14276.8%13.4%0.0%
Wednesday13476.9%14.2%0.0%
Thursday13384.2%12.0%0.0%
Friday13680.1%11.0%0.7%
Saturday10086.0%10.0%1.0%
Sunday13577.8%9.6%4.4%

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
SkyWest Airlines81879.5%12.5%1.0%
United Airlines4689.1%2.2%0.0%
Republic Airways3183.9%12.9%3.2%
Delta Air Lines2568.0%28.0%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20258575.3%14.1%0.0%
August 20258281.7%12.2%0.0%
September 20253994.9%2.6%0.0%
October 20257792.2%1.3%0.0%
November 20257785.7%9.1%0.0%
December 20257664.5%28.9%0.0%
January 20265369.8%17.0%5.7%
February 20265084.0%12.0%2.0%
March 20268872.7%17.0%4.5%
April 20267785.7%5.2%1.3%
May 202610080.0%11.0%0.0%
June 202611678.4%13.8%0.0%

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.

Airline65.6%
Late aircraft1.8%
National airspace13.0%
Weather19.6%
Security0.0%
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.