| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 04 | IAH | SEA | 08:12 | 10:28 |
Landed
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| Oct 03 | IAH | SEA | 08:19 | 10:57 |
Landed
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| Oct 02 | IAH | SEA | 08:14 | 10:35 |
Landed
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| Oct 01 | IAH | SEA | 08:40 | 10:53 |
Landed
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| Sep 30 | IAH | SEA | 08:13 | 10:26 |
Landed
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| Sep 29 | IAH | SEA | 08:11 | 10:24 |
Landed
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| Sep 28 | IAH | SEA | 08:26 | 10:33 |
Landed
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| Sep 27 | IAH | SEA | 08:13 | 10:16 |
Landed
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| Sep 26 | IAH | SEA | 08:13 | 10:36 |
Landed
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| Sep 25 | IAH | SEA | 08:30 | 10:31 |
Landed
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Alaska Airlines Flight AS399 connects Houston, United States to Seattle, United States, taking off from Houston George Bush Intercontinental Airport IAH and landing at Seattle Tacoma International Airport SEA.
How long is the AS399 flight from Houston to Seattle?
The average flight time from Houston to Seattle is 4 hours and 14 minutes. The flight distance is 3013 km / 1872 miles and the average flight speed is 711 km/h / 442 mph.
What is the On-Time Performance (OTP) of Alaska Airlines Flight AS399 Houston to Seattle?
The Airportia On-Time Performance Rating for Alaska Airlines Flight AS399 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest AS399 flight?
The latest flight took off on Saturday, October 4th, 2025 with the flight status being Landed on 10:28.
How else can the flight AS399 be referenced as?
This Alaska Airlines flight can also be referenced as ASA399, AS0399, AS 399, ASA 399.
How often is flight AS399 delayed?
On average, 20% of all AS399 flights are delayed. The average delay is 10 minutes.
Can I get compensation for my delayed or cancelled AS399 flight or baggage issues?
If your AS399 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our AS399 Flight Tracker above for more details.
Flight AS399 is code-shared by 4 airlines using the flight numbers HA4885, JL6387, QR2051, TN2407
Other flights departing from Houston IAH: NK1891, WS1577, AA2692, AA2963
Other flights arriving at Seattle SEA: TK213, AA2870, WN3054, AA3799
All flights connecting Houston IAH to Seattle SEA.
