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

Dallas/Fort Worth, TX (DFW) to San Juan, PR (SJU) flight delay odds

Historically, 67.6% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 989 flights.

HISTORICAL ROUTE SIGNALVariable
67.6%arrived on time
19.8%30+ min late
2.5%cancelled
989scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.5%all scheduled flights
120+ minutes late4.0%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+16.7 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 morning37678.5%9.8%4.0%
Late morning8781.6%12.6%0.0%
Afternoon14761.2%26.5%2.0%
Evening17353.2%32.9%1.7%
Night20658.7%25.2%1.9%

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
Monday14966.4%24.2%1.3%
Tuesday11960.5%22.7%2.5%
Wednesday12074.2%15.0%0.8%
Thursday15177.5%13.9%0.0%
Friday14965.8%23.5%2.0%
Saturday14762.6%17.7%6.1%
Sunday15466.2%21.4%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
American Airlines70266.5%20.9%1.6%
Spirit Airlines25072.8%15.6%4.4%
Frontier Airlines3754.1%27.0%8.1%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20259760.8%26.8%0.0%
August 20256459.4%32.8%1.6%
September 20253989.7%7.7%0.0%
October 20254887.5%6.2%0.0%
November 20257784.4%10.4%0.0%
December 202511060.0%28.2%0.9%
January 202610256.9%18.6%15.7%
February 20268483.3%7.1%2.4%
March 202611361.1%20.4%3.5%
April 202610572.4%17.1%1.0%
May 20269068.9%18.9%0.0%
June 20266048.3%35.0%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.

Airline41.9%
Late aircraft34.3%
National airspace15.6%
Weather8.2%
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.