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Route Reliability

Salt Lake City → TWF

SLC–TWF · 175 miles · Salt Lake City International Airport to TWF Airport

100
Nerd Approved
WanderNerd Reliability Score
94%
Arrive within 15 minutes
6 min early
Average arrival delay
0.5%
Cancelled
785
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 94% of the time across 785 flights. No comparison to make.

What the data says

Mornings have a slight edge.

Departures between 9 AM–12 PM arrived on time 95% of the time, against 91% between 3–6 PM.

Thursday is the weak spot.

SLC–TWF flights arrived on time 98% of the time on Tuesdays. On Thursdays: 89%.

Ticking up lately.

SLC–TWF flights arrived on time 93% of the time over the last three months in the data, compared with 89% 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
  • Mon96%(115 flights)
  • Tue98%(109 flights)
  • Wed94%(113 flights)
  • Thu89%(112 flights)
  • Fri91%(113 flights)
  • Sat97%(104 flights)
  • Sun90%(115 flights)
On-time by departure window
  • 9 AM–12 PM95%(97 flights)
  • 12–3 PM92%(321 flights)
  • 3–6 PM91%(21 flights)
  • 6–9 PM—(7 flights)
  • 9 PM–12 AM95%(335 flights)
On-time trend by month
93%
May

Jun 98% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202598%60
July 202590%62
August 202598%56
September 2025100%60
October 202597%61
November 202591%57
December 202590%59
January 202688%58
February 202689%55
March 202699%86
April 202688%82
May 202693%85

Keep nerding

Based on 785 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.