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1,923 km · Domestic

George Bush Intercontinental (IAH) – Salt Lake City (SLC)

In July 2026, 292 flights operated between George Bush Intercontinental and Salt Lake City (both directions), and 81.8% 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
January343383▲ 11.7%
February348351▲ 0.9%
March413411▼ 0.5%
April352288▼ 18.2%
May298296▼ 0.7%
June296282▼ 4.7%
July306292▼ 4.6%
August318––
September322––
October291–in progress
November274––
December366––
Year to date (Jan–Jul)2,3562,303▼ 2.2%

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
January84.5%91.1%▲ 7.8%
February80.5%88.0%▲ 9.3%
March88.6%81.3%▼ 8.2%
April86.4%86.5%▲ 0.1%
May79.2%77.4%▼ 2.3%
June80.1%80.9%▲ 1.0%
July77.8%81.8%▲ 5.1%
August83.3%––
September91.9%––
October87.3%–in progress
November82.5%––
December82.2%––
Year-to-date average (Jan–Jul)82.4%83.9%▲ 1.7%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January143▼ 78.6%
February00–
March011–
April00–
May02–
June42▼ 50.0%
July20▼ 100.0%
August2––
September0––
October1–in progress
November0––
December3––
Year to date (Jan–Jul)2018▼ 10.0%

Airlines on this route

  1. Delta Air Lines 51.5%
  2. United Airlines 43.7%
  3. SkyWest Airlines 4.8%

Oct 1, 2024 – Jul 31, 2026

By direction

IAH → SLC

Scheduled flights
3,550
Flights operated
3,531
Cancelled
19 · 0.5%
On-time departures
82.4%

SLC → IAH

Scheduled flights
3,552
Flights operated
3,524
Cancelled
28 · 0.8%
On-time departures
85.7%

IAH → SLC and SLC → IAH counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Delta Air Lines DL 3,660 51.5% 83.8% 11
United Airlines UA 3,101 43.7% 84.3% 34
SkyWest Airlines OO 341 4.8% 83.5% 2

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 delay08:00–09:002.8min · 292 recorded · 291 measured
Gap to highest-delay hour17.7min08:00 ↔ 20:00
Recorded flights7,102IAH–SLC

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 · 91.2% · 228 recorded · 227 measured · Source: the US BTS 07:00 · 89.8% · 1,409 recorded · 1,398 measured · Source: the US BTS 08:00 · 90.4% · 292 recorded · 291 measured · Source: the US BTS 09:00 · 87.8% · 823 recorded · 816 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · 86.5% · 556 recorded · 554 measured · Source: the US BTS 12:00 · 84.9% · 392 recorded · 390 measured · Source: the US BTS 13:00 · 81.7% · 963 recorded · 954 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 92 recorded · 92 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 92 recorded · 91 measured · Source: the US BTS 16:00 · 81.6% · 363 recorded · 359 measured · Source: the US BTS 17:00 · 80.2% · 680 recorded · 677 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 143 recorded · 143 measured · Source: the US BTS 19:00 · 76.9% · 570 recorded · 568 measured · Source: the US BTS 20:00 · 69.9% · 499 recorded · 495 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 · 4.2 min · 228 recorded · 227 measured · Source: the US BTS 07:00 · 6.1 min · 1,409 recorded · 1,398 measured · Source: the US BTS 08:00 · 2.8 min · 292 recorded · 291 measured · Source: the US BTS 09:00 · 4.9 min · 823 recorded · 816 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · 6.2 min · 556 recorded · 554 measured · Source: the US BTS 12:00 · 5.6 min · 392 recorded · 390 measured · Source: the US BTS 13:00 · 10.0 min · 963 recorded · 954 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 92 recorded · 92 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 92 recorded · 91 measured · Source: the US BTS 16:00 · 13.5 min · 363 recorded · 359 measured · Source: the US BTS 17:00 · 17.7 min · 680 recorded · 677 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 143 recorded · 143 measured · Source: the US BTS 19:00 · 17.3 min · 570 recorded · 568 measured · Source: the US BTS 20:00 · 20.5 min · 499 recorded · 495 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

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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 · 228 · 228 recorded · 227 measured · Source: the US BTS 07:00 · 1,409 · 1,409 recorded · 1,398 measured · Source: the US BTS 08:00 · 292 · 292 recorded · 291 measured · Source: the US BTS 09:00 · 823 · 823 recorded · 816 measured · Source: the US BTS 10:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 11:00 · 556 · 556 recorded · 554 measured · Source: the US BTS 12:00 · 392 · 392 recorded · 390 measured · Source: the US BTS 13:00 · 963 · 963 recorded · 954 measured · Source: the US BTS 14:00 · 92 · 92 recorded · 92 measured · Source: the US BTS 15:00 · 92 · 92 recorded · 91 measured · Source: the US BTS 16:00 · 363 · 363 recorded · 359 measured · Source: the US BTS 17:00 · 680 · 680 recorded · 677 measured · Source: the US BTS 18:00 · 143 · 143 recorded · 143 measured · Source: the US BTS 19:00 · 570 · 570 recorded · 568 measured · Source: the US BTS 20:00 · 499 · 499 recorded · 495 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

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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———
06:0091.2%4.2 min227228
07:0089.8%6.1 min1,3981,409
08:0090.4%2.8 min291292
09:0087.8%4.9 min816823
10:00No observations———
11:0086.5%6.2 min554556
12:0084.9%5.6 min390392
13:0081.7%10.0 min954963
14:00Fewer than 200 measured departures—9292
15:00Fewer than 200 measured departures—9192
16:0081.6%13.5 min359363
17:0080.2%17.7 min677680
18:00Fewer than 200 measured departures—143143
19:0076.9%17.3 min568570
20:0069.9%20.5 min495499
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 84.0% · 1,041 recorded · 1,031 measured · Source: the US BTS Tuesday · 85.5% · 1,015 recorded · 1,000 measured · Source: the US BTS Wednesday · 82.9% · 1,024 recorded · 1,019 measured · Source: the US BTS Thursday · 85.0% · 1,046 recorded · 1,041 measured · Source: the US BTS Friday · 83.2% · 1,055 recorded · 1,053 measured · Source: the US BTS Saturday · 84.3% · 903 recorded · 899 measured · Source: the US BTS Sunday · 83.3% · 1,018 recorded · 1,012 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 9.6 min · 1,041 recorded · 1,031 measured · Source: the US BTS Tuesday · 8.4 min · 1,015 recorded · 1,000 measured · Source: the US BTS Wednesday · 9.5 min · 1,024 recorded · 1,019 measured · Source: the US BTS Thursday · 8.3 min · 1,046 recorded · 1,041 measured · Source: the US BTS Friday · 11.1 min · 1,055 recorded · 1,053 measured · Source: the US BTS Saturday · 10.6 min · 903 recorded · 899 measured · Source: the US BTS Sunday · 11.0 min · 1,018 recorded · 1,012 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 1,041 · 1,041 recorded · 1,031 measured · Source: the US BTS Tuesday · 1,015 · 1,015 recorded · 1,000 measured · Source: the US BTS Wednesday · 1,024 · 1,024 recorded · 1,019 measured · Source: the US BTS Thursday · 1,046 · 1,046 recorded · 1,041 measured · Source: the US BTS Friday · 1,055 · 1,055 recorded · 1,053 measured · Source: the US BTS Saturday · 903 · 903 recorded · 899 measured · Source: the US BTS Sunday · 1,018 · 1,018 recorded · 1,012 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday84.0%9.6 min1,0311,041
Tuesday85.5%8.4 min1,0001,015
Wednesday82.9%9.5 min1,0191,024
Thursday85.0%8.3 min1,0411,046
Friday83.2%11.1 min1,0531,055
Saturday84.3%10.6 min899903
Sunday83.3%11.0 min1,0121,018

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 · 88.0% · 743 recorded · 726 measured · Source: the US BTS Feb · 84.3% · 699 recorded · 699 measured · Source: the US BTS Mar · 85.0% · 835 recorded · 824 measured · Source: the US BTS Apr · 86.4% · 640 recorded · 640 measured · Source: the US BTS May · 78.3% · 596 recorded · 594 measured · Source: the US BTS Jun · 80.5% · 584 recorded · 578 measured · Source: the US BTS Jul · 79.8% · 600 recorded · 598 measured · Source: the US BTS Aug · 83.3% · 320 recorded · 318 measured · Source: the US BTS Sep · 91.9% · 322 recorded · 322 measured · Source: the US BTS Oct · 87.3% · 504 recorded · 503 measured · Source: the US BTS Nov · 84.4% · 546 recorded · 545 measured · Source: the US BTS Dec · 81.9% · 713 recorded · 708 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 6.3 min · 743 recorded · 726 measured · Source: the US BTS Feb · 6.8 min · 699 recorded · 699 measured · Source: the US BTS Mar · 10.9 min · 835 recorded · 824 measured · Source: the US BTS Apr · 6.2 min · 640 recorded · 640 measured · Source: the US BTS May · 13.9 min · 596 recorded · 594 measured · Source: the US BTS Jun · 12.7 min · 584 recorded · 578 measured · Source: the US BTS Jul · 15.5 min · 600 recorded · 598 measured · Source: the US BTS Aug · 7.0 min · 320 recorded · 318 measured · Source: the US BTS Sep · 3.1 min · 322 recorded · 322 measured · Source: the US BTS Oct · 6.1 min · 504 recorded · 503 measured · Source: the US BTS Nov · 11.7 min · 546 recorded · 545 measured · Source: the US BTS Dec · 13.0 min · 713 recorded · 708 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 743 · 743 recorded · 726 measured · Source: the US BTS Feb · 699 · 699 recorded · 699 measured · Source: the US BTS Mar · 835 · 835 recorded · 824 measured · Source: the US BTS Apr · 640 · 640 recorded · 640 measured · Source: the US BTS May · 596 · 596 recorded · 594 measured · Source: the US BTS Jun · 584 · 584 recorded · 578 measured · Source: the US BTS Jul · 600 · 600 recorded · 598 measured · Source: the US BTS Aug · 320 · 320 recorded · 318 measured · Source: the US BTS Sep · 322 · 322 recorded · 322 measured · Source: the US BTS Oct · 504 · 504 recorded · 503 measured · Source: the US BTS Nov · 546 · 546 recorded · 545 measured · Source: the US BTS Dec · 713 · 713 recorded · 708 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan88.0%6.3 min726743
Feb84.3%6.8 min699699
Mar85.0%10.9 min824835
Apr86.4%6.2 min640640
May78.3%13.9 min594596
Jun80.5%12.7 min578584
Jul79.8%15.5 min598600
Aug83.3%7.0 min318320
Sep91.9%3.1 min322322
Oct87.3%6.1 min503504
Nov84.4%11.7 min545546
Dec81.9%13.0 min708713

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 83.5% 5,928
  • Delayed >15 min 15.9% 1,127
  • Cancelled 0.7% 47
  • 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

37
37 of 37
Flight numbersBy direction DeparturesOn time
DL1583 IAH → SLC 658 87.5%
DL2514 SLC → IAH 658 79.5%
DL2502 SLC → IAH 647 90.4%
DL1532 IAH → SLC 579 82.3%
UA2242 IAH → SLC 533 86.9%
DL1299 IAH → SLC 363 78.2%
UA2366 SLC → IAH 350 91.9%
UA2157 IAH → SLC 344 74.8%
DL2445 SLC → IAH 273 85.7%
UA1168 SLC → IAH 198 89.7%
DL1299 SLC → IAH 195 82.1%
UA497 SLC → IAH 187 77.3%
UA2659 SLC → IAH 149 82.9%
UA2186 SLC → IAH 132 84.7%
UA2198 SLC → IAH 119 88.0%
DL1278 IAH → SLC 111 79.3%
OO5699 SLC → IAH 109 87.0%
UA1823 IAH → SLC 95 91.6%
UA1982 IAH → SLC 94 93.6%
OO4788 IAH → SLC 64 64.1%
UA2162 SLC → IAH 58 73.2%
DL2376 SLC → IAH 55 83.6%
UA600 IAH → SLC 54 77.4%
OO5257 IAH → SLC 45 81.8%
OO5275 IAH → SLC 38 94.7%
OO5783 SLC → IAH 38 89.5%
UA2721 SLC → IAH 36 88.9%
UA2727 IAH → SLC 36 36.1%
UA476 SLC → IAH 36 97.2%
UA604 IAH → SLC 36 83.3%
UA1752 IAH → SLC 35 44.1%
DL903 IAH → SLC 33 84.9%
UA2171 IAH → SLC 32 84.4%
UA2220 IAH → SLC 32 84.4%
UA1825 SLC → IAH 31 86.7%
UA677 SLC → IAH 31 71.0%
UA1891 SLC → IAH 30 80.0%

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 292 −4.6% 0 81.8%
June 2026 282 −4.7% 2 80.9%
May 2026 296 −0.7% 2 77.4%
April 2026 288 −18.2% 0 86.5%
March 2026 411 −0.5% 11 81.3%
February 2026 351 +0.9% 0 88.0%
January 2026 383 +11.7% 3 91.1%
December 2025 366 +7.0% 3 82.2%
November 2025 274 +1.1% 0 82.5%
October 2025 291 +37.3% 1 87.3%
September 2025 322 0 91.9%
August 2025 318 2 83.3%
July 2025 306 2 77.8%
June 2025 296 4 80.1%
May 2025 298 0 79.2%
April 2025 352 0 86.4%
March 2025 413 0 88.6%
February 2025 348 0 80.5%
January 2025 343 14 84.5%
December 2024 342 2 81.6%
November 2024 271 1 86.3%
October 2024 212 0 87.3%

How to read this chart

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