Skip to content
WanderNerd
Check a flight

Flight Reliability

DL 702 · Delta Air Lines

Salt Lake City → Boston (SLC–BOS)

80
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
8 min
Average arrival delay
1.1%
Cancelled
6 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Mondays have been rough.

DL 702 arrived on time 94% of the time on Saturdays and just 70% on Mondays. That gap is worth planning around.

A bit behind the SLC–BOS route.

DL 702 arrived on time 78% of the time, versus 82% across the SLC–BOS route.

A bit behind the Delta Air Lines network.

DL 702 arrived on time 78% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon70%(50 flights)
  • Tue73%(52 flights)
  • Wed77%(52 flights)
  • Thu74%(50 flights)
  • Fri83%(52 flights)
  • Sat94%(52 flights)
  • Sun73%(51 flights)
On-time trend by month
90%
May

Jun 87% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202558%31
August 202574%31
September 202580%30
October 202574%31
November 202576%29
December 202581%31
January 202679%29
February 202681%26
March 202674%31
April 202679%29
May 202690%31
Departures on time
77%
Diverted
0.3%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.