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Route Reliability

Boston → Salt Lake City

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

79
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
9 min
Average arrival delay
1.5%
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 Lines79%1,083 flights
  2. 2.JetBlue Airways66%172 flights

What the data says

Morning-you made the right choice.

BOS–SLC flights departing between 6–9 AM arrived on time 89% of the time, versus 59% between 12–3 PM.

Sunday scaries are real for this one.

BOS–SLC flights arrived on time 83% of the time on Wednesdays. On Sundays: 69%.

Delta Air Lines runs this route best.

Delta Air Lines arrived on time 79% of the time on this route; JetBlue Airways managed 66%.

Trending in the right direction.

BOS–SLC flights arrived on time 76% 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
  • Mon82%(176 flights)
  • Tue78%(159 flights)
  • Wed83%(158 flights)
  • Thu77%(178 flights)
  • Fri82%(179 flights)
  • Sat72%(199 flights)
  • Sun69%(184 flights)
On-time by departure window
  • 6–9 AM89%(382 flights)
  • 9 AM–12 PM79%(334 flights)
  • 12–3 PM59%(17 flights)
  • 3–6 PM74%(119 flights)
  • 6–9 PM67%(381 flights)
On-time trend by month
71%
May

Jun 79% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%109
July 202575%121
August 202585%114
September 202588%92
October 202580%91
November 202584%97
December 202568%105
January 202672%85
February 202669%103
March 202675%132
April 202684%92
May 202671%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.