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Route Reliability

San Juan → Hartford

SJU–BDL · 1,666 miles · Luis Muñoz Marín International Airport to Bradley International Airport

70
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
14 min
Average arrival delay
1.9%
Cancelled
954
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.Frontier Airlines76%228 flights
  2. 2.JetBlue Airways71%726 flights

What the data says

Morning-you made the right choice.

SJU–BDL flights departing between 6–9 AM arrived on time 79% of the time, versus 64% between 3–6 PM.

Sunday scaries are real for this one.

SJU–BDL flights arrived on time 79% of the time on Wednesdays. On Sundays: 69%.

Frontier Airlines has a slight edge here.

Frontier Airlines arrived on time 76% of the time on this route; JetBlue Airways managed 71%.

Trending in the right direction.

SJU–BDL flights arrived on time 77% of the time over the last three months in the data, compared with 69% 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
  • Mon71%(134 flights)
  • Tue74%(121 flights)
  • Wed79%(121 flights)
  • Thu71%(139 flights)
  • Fri72%(138 flights)
  • Sat69%(136 flights)
  • Sun69%(145 flights)
On-time by departure window
  • 12–3 AM76%(50 flights)
  • 3–6 AM77%(75 flights)
  • 6–9 AM79%(326 flights)
  • 9 AM–12 PM—(9 flights)
  • 12–3 PM67%(57 flights)
  • 3–6 PM64%(281 flights)
  • 6–9 PM69%(136 flights)
On-time trend by month
88%
May

Jun 89% → May 88% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%83
July 202567%86
August 202566%91
September 202563%54
October 202551%53
November 202575%64
December 202579%92
January 202669%78
February 202659%69
March 202671%82
April 202671%90
May 202688%92

Keep nerding

Based on 954 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.