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Route Reliability

Dallas–Fort Worth → San Juan

DFW–SJU · 2,165 miles · Dallas Fort Worth International Airport to Luis Muñoz Marín International Airport

65
Usually Fine
WanderNerd Reliability Score
70%
Arrive within 15 minutes
16 min
Average arrival delay
2.4%
Cancelled
1,028
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Spirit Airlines77%289 flights
  2. 2.American Airlines68%702 flights

Not enough history to rank: Frontier Airlines (37 flights). We rank airlines only after 100 flights on the route.

What the data says

Morning flights do better here.

DFW–SJU flights departing between 9 AM–12 PM arrived on time 84% of the time, versus 56% between 3–6 PM.

Tuesday is the weak spot.

DFW–SJU flights arrived on time 77% of the time on Thursdays. On Tuesdays: 64%.

Spirit Airlines runs this route best.

Spirit Airlines arrived on time 77% of the time on this route; American Airlines managed 68%.

Slipping a little lately.

DFW–SJU flights arrived on time 69% of the time over the last three months in the data, compared with 72% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon68%(155 flights)
  • Tue64%(118 flights)
  • Wed72%(123 flights)
  • Thu77%(155 flights)
  • Fri69%(152 flights)
  • Sat68%(145 flights)
  • Sun71%(154 flights)
On-time by departure window
  • 3–6 AM79%(58 flights)
  • 6–9 AM82%(337 flights)
  • 9 AM–12 PM84%(87 flights)
  • 12–3 PM75%(24 flights)
  • 3–6 PM56%(282 flights)
  • 6–9 PM62%(13 flights)
  • 9 PM–12 AM62%(201 flights)
On-time trend by month
69%
May

Jun 59% → May 69% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%99
July 202563%97
August 202560%63
September 202590%39
October 202588%48
November 202584%77
December 202561%109
January 202669%85
February 202687%82
March 202664%109
April 202674%104
May 202669%90

Keep nerding

Based on 1,028 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.