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United Airlines

Is UA2638 delayed?

Each route and date is shown separately. Confirm that both airports match your booking.

Service date: · Scheduled departure date (America/Chicago)

Estimated arrivalLast reported

113 min late

This update may be out of date. Check with your airline.

Update time unavailable

Departure

Houston

IAH

Actual

Scheduled 16:20

Aug 23

Arrival

Seattle

SEA

Estimated

Scheduled 19:08

Aug 23

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Not available

Service date: · Scheduled departure date (America/Chicago)

Arrived

47 min early

Updated

Departure

Chicago

ORD

Actual

Scheduled 10:40

Aug 23

Arrival

Houston

IAH

Actual

Scheduled 13:35

Aug 23

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Actual
Route overview: Houston → SeattleIAHSEA
Route overview
Route overview: Chicago → HoustonORDIAH
Route overview

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • ORD → IAH

    15 min early

  • RDU → ORD

    56 min late

  • IAH → SEA

    21 min early

  • RDU → ORD

    230 min late

  • IAH → SEA

    22 min early
Flight history and details

Aug 21, 2026 — Sep 20, 2026

Observed arrivals
71
Arrivals over 15 minutes late
14
Observed cancellations
0
Observed occurrences
73

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

UA2638 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 20, 2026ArrivedChicagoHouston
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-15
Sep 20, 2026ArrivedRaleigh/DurhamChicago
View this flight’s market
56
Sep 19, 2026ArrivedHoustonSeattle
View this flight’s market
-21
Sep 19, 2026ArrivedRaleigh/DurhamChicago
230
Sep 18, 2026ArrivedHoustonSeattle
-22
Sep 18, 2026ArrivedChicagoHouston
7
Sep 18, 2026ArrivedRaleigh/DurhamChicago
22
Sep 17, 2026ArrivedHoustonSeattle
-27
Sep 17, 2026ArrivedRaleigh/DurhamChicago
247
Sep 16, 2026ArrivedHoustonSeattle
-13
Sep 16, 2026ArrivedChicagoHouston
-8
Sep 16, 2026ArrivedRaleigh/DurhamChicago
17
Sep 15, 2026ArrivedHoustonSeattle
-20
Sep 15, 2026ArrivedRaleigh/DurhamChicago
3
Sep 14, 2026ArrivedHoustonSeattle
-18
Sep 14, 2026ArrivedChicagoHouston
10
Sep 14, 2026ArrivedRaleigh/DurhamChicago
-5
Sep 13, 2026ArrivedHoustonSeattle
33
Sep 13, 2026ArrivedChicagoHouston
-18
Sep 13, 2026ArrivedRaleigh/DurhamChicago
-31
Sep 12, 2026ArrivedHoustonSeattle
-9
Sep 12, 2026ArrivedChicagoHouston
-13
Sep 12, 2026ArrivedRaleigh/DurhamChicago
1
Sep 11, 2026ArrivedHoustonSeattle
72
Sep 11, 2026ArrivedChicagoHouston
2
Sep 11, 2026ArrivedRaleigh/DurhamChicago
-13
Sep 10, 2026ArrivedHoustonSeattle
3
Sep 10, 2026ArrivedChicagoHouston
28
Sep 10, 2026ArrivedRaleigh/DurhamChicago
4
Sep 9, 2026ArrivedHoustonSeattle
-27
Sep 9, 2026ArrivedChicagoHouston
-9
Sep 9, 2026ArrivedRaleigh/DurhamChicago
-15
Sep 8, 2026ArrivedHoustonSeattle
-24
Sep 8, 2026ArrivedChicagoHouston
-21
Sep 8, 2026ArrivedRaleigh/DurhamChicago
-18
Sep 7, 2026ArrivedHoustonSeattle
-9
Sep 7, 2026ArrivedChicagoHouston
-26
Sep 7, 2026ArrivedRaleigh/DurhamChicago
-19
Sep 6, 2026ArrivedHoustonSeattle
-21
Sep 6, 2026ArrivedChicagoHouston
-21
Sep 5, 2026ArrivedHoustonSeattle
-44
Sep 5, 2026ArrivedChicagoHouston
-18
Sep 5, 2026ArrivedRaleigh/DurhamChicago
-8
Sep 4, 2026ArrivedHoustonSeattle
48
Sep 4, 2026ArrivedChicagoHouston
15
Sep 4, 2026ArrivedRaleigh/DurhamChicago
-27
Sep 3, 2026ArrivedHoustonSeattle
30
Sep 3, 2026ArrivedChicagoHouston
63
Sep 2, 2026ArrivedHoustonSeattle
-11
Sep 2, 2026ArrivedChicagoHouston
-7
Sep 1, 2026ArrivedHoustonSeattle
-15
Sep 1, 2026ArrivedChicagoHouston
-2
Aug 31, 2026ArrivedHoustonSeattle
-38
Aug 31, 2026ArrivedChicagoHouston
17
Aug 30, 2026ArrivedHoustonSeattle
-27
Aug 30, 2026ArrivedChicagoHouston
-24
Aug 29, 2026ArrivedHoustonSeattle
-10
Aug 29, 2026ArrivedChicagoHouston
-30
Aug 28, 2026ArrivedHoustonSeattle
58
Aug 28, 2026ArrivedChicagoHouston
-22
Aug 27, 2026ArrivedHoustonSeattle
-6
Aug 27, 2026ArrivedChicagoHouston
-6
Aug 26, 2026ArrivedHoustonSeattle
-31
Aug 26, 2026ArrivedChicagoHouston
-14
Aug 25, 2026ArrivedHoustonSeattle
-10
Aug 25, 2026ArrivedChicagoHouston
-27
Aug 24, 2026ArrivedHoustonSeattle
-31
Aug 24, 2026ArrivedChicagoHouston
1
Aug 23, 2026ArrivedChicagoHouston
-47
Aug 22, 2026ArrivedChicagoHouston
-12
Aug 21, 2026ArrivedHoustonSeattle
-20

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