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AC 4277 Houston to Seattle Flight Status

Air Canada Flight AC4277 from Houston George Bush Intercontinental Airport IAH to Seattle Tacoma International Airport SEA is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on February 20th, 2026.
Check the table below for AC4277's most recent flight history:

AC 4277 Flight Status & Schedule

Date Departure Arrival Status
Feb 20 10:22 11:33
Diverted
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Air Canada AC 4277 Houston to Seattle Flight Information

Air Canada Flight AC4277 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 AC4277 flight from Houston to Seattle?

The average flight time from Houston to Seattle is 3 hours and 11 minutes. The flight distance is 3013 km / 1872 miles and the average flight speed is 947 km/h / 588 mph.

What is the On-Time Performance (OTP) of Air Canada Flight AC4277 Houston to Seattle?

The Airportia On-Time Performance Rating for Air Canada Flight AC4277 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight AC4277 arriving at?

Flight AC4277 arrives at Seattle Tacoma International Airport (SEA) Terminal 1.

When was the latest AC4277 flight?

The latest flight took off on Friday, February 20th, 2026 with the flight status being Diverted on 11:33.

How else can the flight AC4277 be referenced as?

This Air Canada flight can also be referenced as ACA4277, AC 4277, ACA 4277.

How often is flight AC4277 delayed?

On average, 100% of all AC4277 flights are delayed. The average delay is 13 minutes.

Can I get compensation for my delayed or cancelled AC4277 flight or baggage issues?

If your AC4277 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 AC4277 Flight Tracker above for more details.

AC4277 Flight Delay Compensation up to 600€!

Claim compensation for your flight delay or cancellation!

Flight delays happen, but that doesn’t mean you have to accept them. You may be entitled to as much as 600€ in compensation if your flight has been delayed, cancelled or overbooked within the last three years. Claim Compensation Now >

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AC4277 and Houston IAH to Seattle SEA Flights

Other flights departing from Houston IAH: UA1703, UA5094, UA4285, UA2606

Other flights arriving at Seattle SEA: WN4430, OO220, BR695, UA2606

All flights connecting Houston IAH to Seattle SEA.

AC4277 Air Canada Flight: Houston to Seattle Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.