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3,328 km · International

George Bush Intercontinental (IAH) – Cyril E. King (STT)

In July 2026, 62 flights operated between George Bush Intercontinental and Cyril E. King (both directions), and 85.5% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January910▲ 11.1%
February880.0%
March1648▲ 200.0%
April810▲ 25.0%
May2662▲ 138.5%
June60600.0%
July62620.0%
August32––
September2––
October10–in progress
November20––
December16––
Year to date (Jan–Jul)189260▲ 37.6%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January77.8%90.0%▲ 15.7%
February87.5%100.0%▲ 14.3%
March93.8%66.7%▼ 28.9%
April75.0%90.0%▲ 20.0%
May84.6%90.3%▲ 6.7%
June86.7%88.3%▲ 1.8%
July85.5%85.5%0.0%
August84.4%––
September100.0%––
October90.0%–in progress
November95.0%––
December100.0%––
Year-to-date average (Jan–Jul)84.4%87.3%▲ 3.4%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January12▲ 100.0%
February00–
March00–
April00–
May00–
June00–
July00–
August4––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)12▲ 100.0%

By direction

IAH → STT

Scheduled flights
290
Flights operated
287
Cancelled
3 · 1.0%
On-time departures
88.5%

STT → IAH

Scheduled flights
290
Flights operated
286
Cancelled
4 · 1.4%
On-time departures
85.0%

IAH → STT and STT → IAH counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 580 100.0% 86.7% 7

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay09:00–10:003.2min · 237 recorded · 235 measured
Recorded flights580IAH–STT

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 53 recorded · 52 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 87.2% · 237 recorded · 235 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 8 recorded · 8 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 178 recorded · 177 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 51 recorded · 50 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 30 recorded · 29 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 23 recorded · 22 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 53 recorded · 52 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 3.2 min · 237 recorded · 235 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 8 recorded · 8 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 178 recorded · 177 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 51 recorded · 50 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 30 recorded · 29 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 23 recorded · 22 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 07:00 · 53 · 53 recorded · 52 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 237 · 237 recorded · 235 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 12:00 · 8 · 8 recorded · 8 measured · Source: the US BTS 13:00 · 178 · 178 recorded · 177 measured · Source: the US BTS 14:00 · 51 · 51 recorded · 50 measured · Source: the US BTS 15:00 · 30 · 30 recorded · 29 measured · Source: the US BTS 16:00 · 23 · 23 recorded · 22 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00No observations———
06:00No observations———
07:00Fewer than 200 measured departures—5253
08:00No observations———
09:0087.2%3.2 min235237
10:00No observations———
11:00No observations———
12:00Fewer than 200 measured departures—88
13:00Fewer than 200 measured departures—177178
14:00Fewer than 200 measured departures—5051
15:00Fewer than 200 measured departures—2930
16:00Fewer than 200 measured departures—2223
17:00No observations———
18:00No observations———
19:00No observations———
20:00No observations———
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 58 · 58 recorded · 58 measured · Source: the US BTS Tuesday · 56 · 56 recorded · 56 measured · Source: the US BTS Wednesday · 56 · 56 recorded · 56 measured · Source: the US BTS Thursday · 62 · 62 recorded · 62 measured · Source: the US BTS Friday · 62 · 62 recorded · 62 measured · Source: the US BTS Saturday · 178 · 178 recorded · 173 measured · Source: the US BTS Sunday · 108 · 108 recorded · 106 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—5858
TuesdayFewer than 200 measured departures—5656
WednesdayFewer than 200 measured departures—5656
ThursdayFewer than 200 measured departures—6262
FridayFewer than 200 measured departures—6262
SaturdayFewer than 200 measured departures—173178
SundayFewer than 200 measured departures—106108

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 22 · 22 recorded · 19 measured · Source: the US BTS Feb · 16 · 16 recorded · 16 measured · Source: the US BTS Mar · 64 · 64 recorded · 64 measured · Source: the US BTS Apr · 18 · 18 recorded · 18 measured · Source: the US BTS May · 88 · 88 recorded · 88 measured · Source: the US BTS Jun · 120 · 120 recorded · 120 measured · Source: the US BTS Jul · 124 · 124 recorded · 124 measured · Source: the US BTS Aug · 36 · 36 recorded · 32 measured · Source: the US BTS Sep · 2 · 2 recorded · 2 measured · Source: the US BTS Oct · 18 · 18 recorded · 18 measured · Source: the US BTS Nov · 38 · 38 recorded · 38 measured · Source: the US BTS Dec · 34 · 34 recorded · 34 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—1922
FebFewer than 200 measured departures—1616
MarFewer than 200 measured departures—6464
AprFewer than 200 measured departures—1818
MayFewer than 200 measured departures—8888
JunFewer than 200 measured departures—120120
JulFewer than 200 measured departures—124124
AugFewer than 200 measured departures—3236
SepFewer than 200 measured departures—22
OctFewer than 200 measured departures—1818
NovFewer than 200 measured departures—3838
DecFewer than 200 measured departures—3434

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 85.7% 497
  • Delayed >15 min 13.1% 76
  • Cancelled 1.2% 7
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

2
Flight numbersBy direction DeparturesOn time
UA1908 IAH → STT 290 88.5%
UA2208 STT → IAH 290 85.0%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 62 +0.0% 0 85.5%
June 2026 60 +0.0% 0 88.3%
May 2026 62 +138.5% 0 90.3%
April 2026 10 +25.0% 0 90.0%
March 2026 48 +200.0% 0 66.7%
February 2026 8 +0.0% 0 100.0%
January 2026 10 +11.1% 2 90.0%
December 2025 16 −11.1% 0 100.0%
November 2025 20 +11.1% 0 95.0%
October 2025 10 +25.0% 0 90.0%
September 2025 2 0 100.0%
August 2025 32 4 84.4%
July 2025 62 0 85.5%
June 2025 60 0 86.7%
May 2025 26 0 84.6%
April 2025 8 0 75.0%
March 2025 16 0 93.8%
February 2025 8 0 87.5%
January 2025 9 1 77.8%
December 2024 18 0 88.9%
November 2024 18 0 100.0%
October 2024 8 0 100.0%

How to read this chart

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