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1,675 km · Domestic

George Bush Intercontinental (IAH) – Raleigh-Durham (RDU)

In July 2026, 166 flights operated between George Bush Intercontinental and Raleigh-Durham (both directions), and 75.9% 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
January129137▲ 6.2%
February110140▲ 27.3%
March114198▲ 73.7%
April112146▲ 30.4%
May138152▲ 10.1%
June137132▼ 3.6%
July131166▲ 26.7%
August136––
September148––
October165–in progress
November152––
December154––
Year to date (Jan–Jul)8711,071▲ 23.0%

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
January83.7%87.6%▲ 4.7%
February90.0%87.1%▼ 3.2%
March88.6%81.3%▼ 8.2%
April88.4%87.0%▼ 1.6%
May81.2%87.5%▲ 7.8%
June67.9%75.8%▲ 11.6%
July65.6%75.9%▲ 15.7%
August82.4%––
September92.6%––
October85.5%–in progress
November85.5%––
December83.1%––
Year-to-date average (Jan–Jul)80.8%83.2%▲ 3.0%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January69▲ 50.0%
February02–
March02–
April00–
May40▼ 100.0%
June30▼ 100.0%
July12▲ 100.0%
August0––
September0––
October1–in progress
November6––
December0––
Year to date (Jan–Jul)1415▲ 7.1%

Airlines on this route

  1. United Airlines 79.8%
  2. Frontier Airlines 19.6%
  3. SkyWest Airlines 0.6%

Oct 1, 2024 – Jul 31, 2026

By direction

IAH → RDU

Scheduled flights
1,561
Flights operated
1,545
Cancelled
16 · 1.0%
On-time departures
80.2%

RDU → IAH

Scheduled flights
1,564
Flights operated
1,544
Cancelled
20 · 1.3%
On-time departures
85.7%

IAH → RDU and RDU → IAH counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 2,493 79.8% 85.9% 24
Frontier Airlines F9 612 19.6% 71.7% 12
SkyWest Airlines OO 20 0.6% 50.0% 0

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 delay06:00–07:003.5min · 657 recorded · 649 measured
Gap to highest-delay hour21.0min06:00 ↔ 17:00
Recorded flights3,125IAH–RDU

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 · 94.8% · 657 recorded · 649 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 8 recorded · 8 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 45 recorded · 45 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 118 recorded · 118 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 138 recorded · 137 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 12:00 · 88.6% · 560 recorded · 554 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 19 recorded · 18 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 42 recorded · 41 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 33 recorded · 32 measured · Source: the US BTS 16:00 · 84.1% · 463 recorded · 459 measured · Source: the US BTS 17:00 · 70.1% · 227 recorded · 221 measured · Source: the US BTS 18:00 · 73.3% · 711 recorded · 705 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 26 recorded · 25 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 17 recorded · 16 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 · 3.5 min · 657 recorded · 649 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 8 recorded · 8 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 45 recorded · 45 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 118 recorded · 118 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 138 recorded · 137 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 12:00 · 5.9 min · 560 recorded · 554 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 19 recorded · 18 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 42 recorded · 41 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 33 recorded · 32 measured · Source: the US BTS 16:00 · 10.1 min · 463 recorded · 459 measured · Source: the US BTS 17:00 · 24.4 min · 227 recorded · 221 measured · Source: the US BTS 18:00 · 19.3 min · 711 recorded · 705 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 26 recorded · 25 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 17 recorded · 16 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 · 657 · 657 recorded · 649 measured · Source: the US BTS 07:00 · 8 · 8 recorded · 8 measured · Source: the US BTS 08:00 · 45 · 45 recorded · 45 measured · Source: the US BTS 09:00 · 118 · 118 recorded · 118 measured · Source: the US BTS 10:00 · 138 · 138 recorded · 137 measured · Source: the US BTS 11:00 · 61 · 61 recorded · 61 measured · Source: the US BTS 12:00 · 560 · 560 recorded · 554 measured · Source: the US BTS 13:00 · 19 · 19 recorded · 18 measured · Source: the US BTS 14:00 · 42 · 42 recorded · 41 measured · Source: the US BTS 15:00 · 33 · 33 recorded · 32 measured · Source: the US BTS 16:00 · 463 · 463 recorded · 459 measured · Source: the US BTS 17:00 · 227 · 227 recorded · 221 measured · Source: the US BTS 18:00 · 711 · 711 recorded · 705 measured · Source: the US BTS 19:00 · 26 · 26 recorded · 25 measured · Source: the US BTS 20:00 · 17 · 17 recorded · 16 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———
06:0094.8%3.5 min649657
07:00Fewer than 200 measured departures—88
08:00Fewer than 200 measured departures—4545
09:00Fewer than 200 measured departures—118118
10:00Fewer than 200 measured departures—137138
11:00Fewer than 200 measured departures—6161
12:0088.6%5.9 min554560
13:00Fewer than 200 measured departures—1819
14:00Fewer than 200 measured departures—4142
15:00Fewer than 200 measured departures—3233
16:0084.1%10.1 min459463
17:0070.1%24.4 min221227
18:0073.3%19.3 min705711
19:00Fewer than 200 measured departures—2526
20:00Fewer than 200 measured departures—1617
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 · 79.3% · 490 recorded · 482 measured · Source: the US BTS Tuesday · 87.1% · 394 recorded · 388 measured · Source: the US BTS Wednesday · 86.9% · 390 recorded · 388 measured · Source: the US BTS Thursday · 80.3% · 498 recorded · 498 measured · Source: the US BTS Friday · 84.5% · 492 recorded · 490 measured · Source: the US BTS Saturday · 84.8% · 351 recorded · 349 measured · Source: the US BTS Sunday · 80.0% · 510 recorded · 494 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
Monday · 18.5 min · 490 recorded · 482 measured · Source: the US BTS Tuesday · 5.7 min · 394 recorded · 388 measured · Source: the US BTS Wednesday · 8.5 min · 390 recorded · 388 measured · Source: the US BTS Thursday · 11.2 min · 498 recorded · 498 measured · Source: the US BTS Friday · 11.5 min · 492 recorded · 490 measured · Source: the US BTS Saturday · 10.5 min · 351 recorded · 349 measured · Source: the US BTS Sunday · 11.6 min · 510 recorded · 494 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 · 490 · 490 recorded · 482 measured · Source: the US BTS Tuesday · 394 · 394 recorded · 388 measured · Source: the US BTS Wednesday · 390 · 390 recorded · 388 measured · Source: the US BTS Thursday · 498 · 498 recorded · 498 measured · Source: the US BTS Friday · 492 · 492 recorded · 490 measured · Source: the US BTS Saturday · 351 · 351 recorded · 349 measured · Source: the US BTS Sunday · 510 · 510 recorded · 494 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday79.3%18.5 min482490
Tuesday87.1%5.7 min388394
Wednesday86.9%8.5 min388390
Thursday80.3%11.2 min498498
Friday84.5%11.5 min490492
Saturday84.8%10.5 min349351
Sunday80.0%11.6 min494510

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 · 85.7% · 281 recorded · 266 measured · Source: the US BTS Feb · 88.4% · 252 recorded · 250 measured · Source: the US BTS Mar · 84.0% · 314 recorded · 312 measured · Source: the US BTS Apr · 87.6% · 258 recorded · 258 measured · Source: the US BTS May · 84.5% · 294 recorded · 290 measured · Source: the US BTS Jun · 71.8% · 272 recorded · 269 measured · Source: the US BTS Jul · 71.4% · 300 recorded · 297 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 136 recorded · 136 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 148 recorded · 148 measured · Source: the US BTS Oct · 85.8% · 268 recorded · 267 measured · Source: the US BTS Nov · 85.9% · 304 recorded · 298 measured · Source: the US BTS Dec · 80.9% · 298 recorded · 298 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 · 10.9 min · 281 recorded · 266 measured · Source: the US BTS Feb · 3.5 min · 252 recorded · 250 measured · Source: the US BTS Mar · 12.4 min · 314 recorded · 312 measured · Source: the US BTS Apr · 5.0 min · 258 recorded · 258 measured · Source: the US BTS May · 11.7 min · 294 recorded · 290 measured · Source: the US BTS Jun · 20.9 min · 272 recorded · 269 measured · Source: the US BTS Jul · 21.4 min · 300 recorded · 297 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 136 recorded · 136 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 148 recorded · 148 measured · Source: the US BTS Oct · 13.1 min · 268 recorded · 267 measured · Source: the US BTS Nov · 7.9 min · 304 recorded · 298 measured · Source: the US BTS Dec · 10.2 min · 298 recorded · 298 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 · 281 · 281 recorded · 266 measured · Source: the US BTS Feb · 252 · 252 recorded · 250 measured · Source: the US BTS Mar · 314 · 314 recorded · 312 measured · Source: the US BTS Apr · 258 · 258 recorded · 258 measured · Source: the US BTS May · 294 · 294 recorded · 290 measured · Source: the US BTS Jun · 272 · 272 recorded · 269 measured · Source: the US BTS Jul · 300 · 300 recorded · 297 measured · Source: the US BTS Aug · 136 · 136 recorded · 136 measured · Source: the US BTS Sep · 148 · 148 recorded · 148 measured · Source: the US BTS Oct · 268 · 268 recorded · 267 measured · Source: the US BTS Nov · 304 · 304 recorded · 298 measured · Source: the US BTS Dec · 298 · 298 recorded · 298 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan85.7%10.9 min266281
Feb88.4%3.5 min250252
Mar84.0%12.4 min312314
Apr87.6%5.0 min258258
May84.5%11.7 min290294
Jun71.8%20.9 min269272
Jul71.4%21.4 min297300
AugFewer than 200 measured departures—136136
SepFewer than 200 measured departures—148148
Oct85.8%13.1 min267268
Nov85.9%7.9 min298304
Dec80.9%10.2 min298298

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 82.0% 2,562
  • Delayed >15 min 16.9% 527
  • Cancelled 1.2% 36
  • 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

19
19 of 19
Flight numbersBy direction DeparturesOn time
UA2407 RDU → IAH 558 83.0%
UA1383 RDU → IAH 454 95.1%
UA1821 IAH → RDU 308 92.8%
UA2498 IAH → RDU 303 73.1%
F994609 RDU → IAH 163 61.2%
F994610 IAH → RDU 163 67.5%
F991741 RDU → IAH 143 83.8%
F991742 IAH → RDU 143 75.9%
UA1829 IAH → RDU 106 71.4%
UA2478 IAH → RDU 96 84.4%
UA2358 RDU → IAH 89 94.4%
UA2675 IAH → RDU 69 92.7%
UA537 RDU → IAH 56 96.3%
UA2196 IAH → RDU 48 85.1%
UA1475 IAH → RDU 37 80.6%
UA1081 IAH → RDU 32 87.5%
UA2074 RDU → IAH 32 90.6%
UA1486 IAH → RDU 31 74.2%
UA738 IAH → RDU 31 83.9%

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 166 +26.7% 2 75.9%
June 2026 132 −3.6% 0 75.8%
May 2026 152 +10.1% 0 87.5%
April 2026 146 +30.4% 0 87.0%
March 2026 198 +73.7% 2 81.3%
February 2026 140 +27.3% 2 87.1%
January 2026 137 +6.2% 9 87.6%
December 2025 154 +6.9% 0 83.1%
November 2025 152 +4.1% 6 85.5%
October 2025 165 +61.8% 1 85.5%
September 2025 148 0 92.6%
August 2025 136 0 82.4%
July 2025 131 1 65.6%
June 2025 137 3 67.9%
May 2025 138 4 81.2%
April 2025 112 0 88.4%
March 2025 114 0 88.6%
February 2025 110 0 90.0%
January 2025 129 6 83.7%
December 2024 144 0 78.5%
November 2024 146 0 86.3%
October 2024 102 0 86.3%

How to read this chart

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