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Route Reliability

GUM → Honolulu

GUM–HNL · 3,801 miles · GUM Airport to Daniel K. Inouye International Airport

87
Pretty Reliable
WanderNerd Reliability Score
90%
Arrive within 15 minutes
5 min early
Average arrival delay
2.5%
Cancelled
365
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 90% of the time across 365 flights. No comparison to make.

What the data says

Saturdays have been rough.

GUM–HNL flights arrived on time 96% of the time on Fridays and just 80% on Saturdays. That gap is worth planning around.

Recent months have been rougher.

GUM–HNL flights arrived on time 83% of the time over the last three months in the data, compared with 96% in the three months before that.

The breakdown

On-time by weekday
  • Mon88%(49 flights)
  • Tue96%(48 flights)
  • Wed86%(51 flights)
  • Thu92%(51 flights)
  • Fri96%(52 flights)
  • Sat80%(51 flights)
  • Sun91%(53 flights)
On-time trend by month
80%
May

Jun 89% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%28
July 202594%31
August 202587%31
September 202597%29
October 202594%31
November 202583%29
December 2025100%31
January 202690%31
February 202696%27
March 202687%31
April 202681%26
May 202680%30

Keep nerding

Based on 365 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.