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

Phoenix, AZ (PHX) to Des Moines, IA (DSM) flight delay odds

Historically, 76.2% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,067 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
76.2%arrived on time
12.6%30+ min late
1.4%cancelled
1,067scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.5%all scheduled flights
120+ minutes late1.5%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+3.7 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 morning25082.4%6.8%0.4%
Late morning22176.5%11.3%0.9%
Afternoon28979.6%12.1%1.7%
Evening30667.6%18.6%2.3%

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
Monday16872.0%14.9%0.6%
Tuesday12678.6%11.1%1.6%
Wednesday12784.3%7.1%0.0%
Thursday16678.9%13.9%0.0%
Friday16378.5%9.8%0.6%
Saturday14274.6%12.0%1.4%
Sunday17569.1%17.1%5.1%

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
American Airlines49475.7%13.6%1.8%
SkyWest Airlines35279.0%10.5%1.4%
Southwest Airlines16671.1%13.9%0.6%
Envoy Air4879.2%12.5%0.0%
Frontier Airlines771.4%14.3%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20256173.8%11.5%0.0%
August 20257081.4%10.0%0.0%
September 20256883.8%5.9%1.5%
October 202510677.4%14.2%0.0%
November 20259469.1%12.8%4.3%
December 20259772.2%16.5%2.1%
January 20269275.0%14.1%3.3%
February 20269077.8%13.3%0.0%
March 202612772.4%15.0%3.9%
April 202610587.6%4.8%0.0%
May 20269669.8%15.6%0.0%
June 20266177.0%14.8%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.

Airline44.0%
Late aircraft40.4%
National airspace13.2%
Weather2.2%
Security0.2%
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.