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Airport · GUM · Guam, U.S. Pacific Trust Territories and Possessions

Guam, TT

According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Guam, TT (GUM) ranks #280 of 382 tracked US airports by total flights (most flights = #1). Guam, TT posts top-5% on-time performance among the 382 tracked U.S. airports, as a smaller regional airport.

Data updated 2026-06-13

90.6%
On-time
Top 2%
on-time, US airports
75 min
Delay when late
0.47%
Cancelled
#280 of 382
Corpus placement
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GUM on-time rate vs. the national average

Ahead of the U.S. average across all 382 tracked airports.

0%100%U.S. average79%90.6%

Delay Cause Breakdown

Top delay cause: Carrier. Total delay minutes: 23,421.

Late Aircraft 29.9% (7,009 min)
Carrier 59.9% (14,027 min)
NAS (National Aviation System) 10.0% (2,341 min)
Weather 0.2% (44 min)
Security 0.0% (0 min)

GUM - seasonal on-time pattern

Best: March (97.3%) · worst: June (94.1%)

93%94%95%96%97%98% JanFebMarAprMayJunJulAugSepOctNovDec 96%

GUM - on-time rate by year

2020–2025, year-over-year trend.

94%95%96%97%98% 202020212022202320242025 96.9% 95.2% ▼ -1.8%

GUM - taxi-out and taxi-in (monthly)

Average taxi-out 15 min · taxi-in 3.4 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).

13 min14 min15 min16 min17 min Jan 24Dec 25 15.2 min 14.2 min ▼ -6.6%

GUM's average taxi-out (15 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 14.1 min (March 2024) to 16.1 min (August 2024).

Cancellation & Diversion Analysis

Flight disruption statistics for Guam, TT.

Cancellation Rate

0.47%

40 of 8,429 flights

Diversion Rate

0.02%

2 of 8,429 flights

Delay Rate

9.4%

796 of 8,429 flights

Top Routes from GUM

Busiest routes to and from Guam, TT.

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Route Flights On-Time Distance
GUM (Guam) → HNL (Honolulu) 2,023 90.9% 3,801 mi
HNL (Honolulu) → GUM (Guam) 2,022 85.1% 3,801 mi
GUM (Guam) → SPN (Saipan) 1,676 95.5% 129 mi
SPN (Saipan) → GUM (Guam) 1,676 94.2% 129 mi

Nationwide peers by on-time rate & flight volume

Two PlainFlights-derived comparison paths for Guam, TT, both outside U.S. Pacific Trust Territories and Possessions so the neighborhoods are not same-state geography. Axes stay disjoint: volume peers exclude the on-time peer set. Same-state compare stays below.

Similar on-time rate

Nearest out-of-state BTS on-time rate (this airport: 90.6%).

Fort Leonard Wood, MO

Fort Leonard Wood, MO

90.5% on-time 1,262 flights

Gustavus, AK

Gustavus, AK

90.3% on-time 1,064 flights

Butte, MT

Butte, MT

91% on-time 8,024 flights

Columbus, MS

Columbus, MS

89.9% on-time 9,419 flights

Similar flight volume

Nearest out-of-state total flights (this airport: 8,429).

Brunswick, GA

Brunswick, GA

8,479 flights 88.5% on-time

Hays, KS

Hays, KS

8,353 flights 84.6% on-time

Latrobe, PA

Latrobe, PA

8,539 flights 83.5% on-time

Garden City, KS

Garden City, KS

8,568 flights 84.8% on-time

Other Airports in U.S. Pacific Trust Territories and Possessions

Compare performance with other U.S. Pacific Trust Territories and Possessions airports.

SPN 94.8%

Saipan, TT

Saipan · 4,024 flights
PPG 74.6%

Pago Pago, TT

Pago Pago · 1,005 flights

GUM delay-share reading

The standout signal at Guam, TT is the delay mix: Carrier owns 59.9% of 23,421 delay minutes across 8,429 BTS flights. The on-time headline is 90.6% (11.6 pts above the 79% national average), with 796 delayed and 40 cancelled (0.47%).

Delay minutes concentrate in Carrier (29.9% late-aircraft, 59.9% carrier, 10.0% NAS, 0.2% weather, 0.0% security). As a quieter airport, a single late inbound can swing the month more than at a mega-hub.

On the multi-year calendar, GUM is strongest in March (97.3% on-time) and weakest in June (94.1%), a 3.2-point swing. Volume peaks in August (~123 flights/month). The busiest connecting route is to HNL (Honolulu) at 90.9% on-time. Field definitions: on-time performance explained.

Statewide aggregates for U.S. Pacific Trust Territories and Possessions: U.S. Pacific Trust Territories and Possessions flight data.

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025). Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Read our methodology - how this data is sourced, computed, and verified.

Using GUM's data

GUM's on-time book is stronger than most peers; the remaining risk sits in the delay mix, not a weak headline rate.

  • Check the busiest route from GUM before you book a connection. See top routes
  • Travel in March rather than June if your dates are flexible. Seasonal patterns
  • Gate-to-wheels taxi-out averages 15 min here; check the monthly series before a tight connection. Taxi times

On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.