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1,503 km · Domestic

George Bush Intercontinental (IAH) – Tucson (TUS)

In May 2026, 41 flights operated between George Bush Intercontinental and Tucson (both directions), and 80.5% left on time, according to the US BTS.

Official · May 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 periods12 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January10458▼ 44.2%
February11293▼ 17.0%
March12464▼ 48.4%
April11278▼ 30.4%
May7541▼ 45.3%
June–––
July–––
August–––
September21––
October49–in progress
November–––
December–––
Year to date (Jan–May)527334▼ 36.6%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods12 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January86.5%94.8%▲ 9.6%
February80.4%89.2%▲ 10.9%
March87.9%87.5%▼ 0.5%
April90.2%85.9%▼ 4.8%
May85.3%80.5%▼ 5.6%
June–––
July–––
August–––
September95.2%––
October89.8%–in progress
November–––
December–––
Year-to-date average (Jan–May)86.1%87.6%▲ 1.8%

Cancelled flights by month

The most recent periods12 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January82▼ 75.0%
February00–
March06–
April00–
May20▼ 100.0%
June–––
July–––
August–––
September0––
October0–in progress
November–––
December–––
Year to date (Jan–May)108▼ 20.0%

Airlines on this route

  1. United Airlines 86.2%
  2. SkyWest Airlines 13.8%

Oct 1, 2024 – May 31, 2026

By direction

IAH → TUS

Scheduled flights
578
Flights operated
568
Cancelled
10 · 1.7%
On-time departures
82.9%

TUS → IAH

Scheduled flights
579
Flights operated
570
Cancelled
9 · 1.6%
On-time departures
90.5%

IAH → TUS and TUS → IAH counted separately.

Airlines on this route

Oct 1, 2024 – May 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 997 86.2% 86.6% 16
SkyWest Airlines OO 160 13.8% 87.3% 3

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 → May 21, 2026

Lowest average delay06:00–07:006.5min · 206 recorded · 203 measured
Gap to highest-delay hour5.2min06:00 ↔ 20:00
Recorded flights1,157IAH–TUS

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 · 93.1% · 206 recorded · 203 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 154 recorded · 151 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 181 recorded · 178 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 38 recorded · 38 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 12 recorded · 12 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 88 recorded · 87 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 119 recorded · 117 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 3 recorded · 3 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 · Fewer than 200 measured departures · 82 recorded · 82 measured · Source: the US BTS 20:00 · 75.7% · 274 recorded · 267 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 · 6.5 min · 206 recorded · 203 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 154 recorded · 151 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 181 recorded · 178 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 38 recorded · 38 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 12 recorded · 12 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 88 recorded · 87 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 119 recorded · 117 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 3 recorded · 3 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 · Fewer than 200 measured departures · 82 recorded · 82 measured · Source: the US BTS 20:00 · 11.7 min · 274 recorded · 267 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 · 206 · 206 recorded · 203 measured · Source: the US BTS 07:00 · 154 · 154 recorded · 151 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 181 · 181 recorded · 178 measured · Source: the US BTS 10:00 · 38 · 38 recorded · 38 measured · Source: the US BTS 11:00 · 12 · 12 recorded · 12 measured · Source: the US BTS 12:00 · 88 · 88 recorded · 87 measured · Source: the US BTS 13:00 · 119 · 119 recorded · 117 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · 3 · 3 recorded · 3 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 · 82 · 82 recorded · 82 measured · Source: the US BTS 20:00 · 274 · 274 recorded · 267 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———
06:0093.1%6.5 min203206
07:00Fewer than 200 measured departures—151154
08:00No observations———
09:00Fewer than 200 measured departures—178181
10:00Fewer than 200 measured departures—3838
11:00Fewer than 200 measured departures—1212
12:00Fewer than 200 measured departures—8788
13:00Fewer than 200 measured departures—117119
14:00No observations———
15:00No observations———
16:00Fewer than 200 measured departures—33
17:00No observations———
18:00No observations———
19:00Fewer than 200 measured departures—8282
20:0075.7%11.7 min267274
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 · 163 · 163 recorded · 161 measured · Source: the US BTS Tuesday · 168 · 168 recorded · 162 measured · Source: the US BTS Wednesday · 182 · 182 recorded · 180 measured · Source: the US BTS Thursday · 165 · 165 recorded · 165 measured · Source: the US BTS Friday · 166 · 166 recorded · 164 measured · Source: the US BTS Saturday · 154 · 154 recorded · 152 measured · Source: the US BTS Sunday · 159 · 159 recorded · 154 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—161163
TuesdayFewer than 200 measured departures—162168
WednesdayFewer than 200 measured departures—180182
ThursdayFewer than 200 measured departures—165165
FridayFewer than 200 measured departures—164166
SaturdayFewer than 200 measured departures—152154
SundayFewer than 200 measured departures—154159

Month of year

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

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · Fewer than 200 measured departures · 172 recorded · 162 measured · Source: the US BTS Feb · 84.4% · 205 recorded · 205 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 194 recorded · 188 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 190 recorded · 190 measured · Source: the US BTS May · Fewer than 200 measured departures · 118 recorded · 116 measured · Source: the US BTS Jun · No observations · 0 recorded · 0 measured · Source: the US BTS Jul · No observations · 0 recorded · 0 measured · Source: the US BTS Aug · No observations · 0 recorded · 0 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 113 recorded · 113 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 58 recorded · 58 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 86 recorded · 85 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
Jan · Fewer than 200 measured departures · 172 recorded · 162 measured · Source: the US BTS Feb · 7.1 min · 205 recorded · 205 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 194 recorded · 188 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 190 recorded · 190 measured · Source: the US BTS May · Fewer than 200 measured departures · 118 recorded · 116 measured · Source: the US BTS Jun · No observations · 0 recorded · 0 measured · Source: the US BTS Jul · No observations · 0 recorded · 0 measured · Source: the US BTS Aug · No observations · 0 recorded · 0 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 113 recorded · 113 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 58 recorded · 58 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 86 recorded · 85 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
Jan · 172 · 172 recorded · 162 measured · Source: the US BTS Feb · 205 · 205 recorded · 205 measured · Source: the US BTS Mar · 194 · 194 recorded · 188 measured · Source: the US BTS Apr · 190 · 190 recorded · 190 measured · Source: the US BTS May · 118 · 118 recorded · 116 measured · Source: the US BTS Jun · No observations · 0 recorded · 0 measured · Source: the US BTS Jul · No observations · 0 recorded · 0 measured · Source: the US BTS Aug · No observations · 0 recorded · 0 measured · Source: the US BTS Sep · 21 · 21 recorded · 21 measured · Source: the US BTS Oct · 113 · 113 recorded · 113 measured · Source: the US BTS Nov · 58 · 58 recorded · 58 measured · Source: the US BTS Dec · 86 · 86 recorded · 85 measured · Source: the US BTS

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

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—162172
Feb84.4%7.1 min205205
MarFewer than 200 measured departures—188194
AprFewer than 200 measured departures—190190
MayFewer than 200 measured departures—116118
JunNo observations———
JulNo observations———
AugNo observations———
SepFewer than 200 measured departures—2121
OctFewer than 200 measured departures—113113
NovFewer than 200 measured departures—5858
DecFewer than 200 measured departures—8586

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 85.3% 987
  • Delayed >15 min 13.1% 151
  • Cancelled 1.6% 19
  • 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

15
15 of 15
Flight numbersBy direction DeparturesOn time
UA2037 IAH → TUS 168 75.2%
UA2355 TUS → IAH 153 92.7%
UA1772 IAH → TUS 69 89.9%
OO5482 TUS → IAH 58 75.4%
OO5536 IAH → TUS 58 94.6%
UA1745 TUS → IAH 53 94.3%
UA2390 TUS → IAH 53 90.6%
UA1893 IAH → TUS 52 78.4%
UA284 IAH → TUS 50 72.0%
UA2223 TUS → IAH 45 83.3%
UA1703 IAH → TUS 37 94.4%
UA2492 TUS → IAH 37 94.4%
UA2451 TUS → IAH 36 86.1%
UA1102 TUS → IAH 30 96.7%
UA2198 IAH → TUS 30 83.3%

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
May 2026 41 −45.3% 0 80.5%
April 2026 78 −30.4% 0 85.9%
March 2026 64 −48.4% 6 87.5%
February 2026 93 −17.0% 0 89.2%
January 2026 58 −44.2% 2 94.8%
October 2025 49 −23.4% 0 89.8%
September 2025 21 0 95.2%
May 2025 75 2 85.3%
April 2025 112 0 90.2%
March 2025 124 0 87.9%
February 2025 112 0 80.4%
January 2025 104 8 86.5%
December 2024 85 1 75.3%
November 2024 58 0 91.4%
October 2024 64 0 90.6%

How to read this chart

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