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Route Reliability

Salt Lake City → Boston

SLC–BOS · 2,105 miles · Salt Lake City International Airport to Boston Logan International Airport

82
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
0 min
Average arrival delay
1.8%
Cancelled
1,255
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.Delta Air Lines84%1,083 flights
  2. 2.JetBlue Airways71%172 flights

What the data says

The late departure is the smart one here.

SLC–BOS flights departing between 9 PM–12 AM arrived on time 86% of the time, versus 63% between 12–3 PM.

Sunday scaries are real for this one.

SLC–BOS flights arrived on time 89% of the time on Saturdays. On Sundays: 78%.

Delta Air Lines runs this route best.

Delta Air Lines arrived on time 84% of the time on this route; JetBlue Airways managed 71%.

Ticking up lately.

SLC–BOS flights arrived on time 86% of the time over the last three months in the data, compared with 82% 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
  • Mon80%(176 flights)
  • Tue83%(161 flights)
  • Wed85%(161 flights)
  • Thu79%(177 flights)
  • Fri80%(178 flights)
  • Sat89%(199 flights)
  • Sun78%(179 flights)
On-time by departure window
  • 6–9 AM82%(17 flights)
  • 9 AM–12 PM83%(361 flights)
  • 12–3 PM63%(24 flights)
  • 3–6 PM78%(359 flights)
  • 9 PM–12 AM86%(470 flights)
On-time trend by month
94%
May

Jun 80% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%108
July 202577%121
August 202586%115
September 202578%92
October 202575%92
November 202589%97
December 202581%105
January 202684%85
February 202681%101
March 202680%132
April 202684%91
May 202694%92

Keep nerding

Based on 1,255 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.