How long is the AS4638 flight?

The timetable allows 1 h 21 min. Dallas to Houston is 362 km (225 mi).

Which terminal does AS4638 use?

It usually leaves from Terminal E at Dallas Fort Worth International Airport (DFW) and arrives at Terminal A at Houston George Bush Intercontinental Airport (IAH). Check the flight card above for today's terminal and gate.

What other flight numbers does AS4638 have?

Also listed as ASA4638 (Alaska Airlines' ICAO code) and AS 4638.

AS4638 Flight Status Alaska Airlines: Dallas to Houston (ASA4638)

Alaska Airlines AS 4638

Landed On Time

DFW Dallas

Scheduled: 17:26
Actual: 17:50

Terminal: B | Gate: B48

Departure: Sat, Nov 7, 2026 · local time CST

Dallas Fort Worth International Airport (DFW)

All DFW Departures >

IAH Houston

Scheduled: 18:44
Actual: 18:33
Delay

Terminal: A | Gate: 27

Arrival: Sat, Nov 7, 2026 · local time CST

Houston George Bush Intercontinental Airport (IAH)

All IAH Arrivals >

Landed 38h 01m ago 100%

DFW 17:50 IAH 18:33

362 km (225 mi) flown

Estimated position based on departure and arrival times, not live tracking. Times are local at each airport.

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Distance: 362 km / 225 miles · Scheduled Duration: 01:18 · Actual Duration: 00:43

AS 4638 Flight Status & Schedule Alaska Airlines Dallas to Houston

Date	From	To	Departure	Arrival	Status	Details
Nov 07	DFW	IAH	17:50	18:33	Landed	Track >
Nov 03	DFW	IAH	17:58	18:47	Landed	Track >
Sep 29	DFW	IAH	17:19	18:06	Landed	Track >
Sep 28	DFW	IAH	18:02	18:43	Landed Late	Track >
Aug 03	DFW	IAH	18:22	19:02	Landed	Track >
Aug 02	DFW	IAH	18:02	18:53	Landed	Track >
Aug 01	DFW	IAH	18:37	19:20	Landed	Track >
Jul 31	DFW	IAH	20:12	19:11	Unknown	Track >
Jul 30	DFW	IAH	18:01	18:47	Landed	Track >
Jul 27	DFW	IAH	18:08	18:52	Landed	Track >

Alaska Airlines flight AS 4638 links Dallas and Houston, 362 km (225 mi) apart, and flies twice a week: Tuesday and Saturday. Its timetable allows 1 h 21 min; in practice it usually takes about 45 min, so it often makes up time. On Saturday it left 24 minutes late and still landed at 18:33, 11 minutes early.

< All Dallas DFW Departures All Houston IAH Arrivals >

About AS 4638

Route: Dallas Fort Worth International Airport DFW to Houston George Bush Intercontinental Airport IAH
Distance: 362 km (225 mi)
Typical flight time: 45 min
Flies: Tue, Sat
On time: 8 of the last 9
Average delay when late: 18 min
Usually departs from: Terminal E

AS 4638 FAQ

How long is the AS4638 flight?: The timetable allows 1 h 21 min. Dallas to Houston is 362 km (225 mi).
How often is AS4638 late?: 1 of the last 9 flights arrived 15 or more minutes late; when late, by 18 minutes on average.
Which days does AS4638 fly?: Twice a week: Tuesday and Saturday, based on the schedule of the last 7 days.
Which terminal does AS4638 use?: It usually leaves from Terminal E at Dallas Fort Worth International Airport (DFW) and arrives at Terminal A at Houston George Bush Intercontinental Airport (IAH). Check the flight card above for today's terminal and gate.
What other flight numbers does AS4638 have?: Also listed as ASA4638 (Alaska Airlines' ICAO code) and AS 4638.

AS4638 and Dallas DFW to Houston IAH Flights

Flight AS4638 is a code-share Alaska Airlines flight of the Envoy Air operated MQ3947.

Other flights departing from Dallas DFW: MQ3947, OO6267

Other flights arriving at Houston IAH: UA394, YV6254, MQ3947

All flights connecting Dallas DFW to Houston IAH.