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AA4638 Flight Status American Airlines: Washington to Buffalo (AAL4638)

AA 4638 Washington to Buffalo Flight Status

American Airlines Flight AA4638 from Washington Ronald Reagan National Airport DCA to Buffalo Niagara International Airport BUF is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on May 30th, 2026.
Check the table below for AA4638's most recent flight history:

AA 4638 Flight Status & Schedule

Date Departure Arrival Status
May 30 20:45 21:39
Landed
 Track >
May 23 20:53 21:44
Landed
 Track >
< All DCA Departures All BUF Arrivals >

American Airlines AA 4638 Washington to Buffalo Flight Information

American Airlines Flight AA4638 connects Washington, United States to Buffalo, United States, taking off from Washington Ronald Reagan National Airport DCA and landing at Buffalo Niagara International Airport BUF.

How long is the AA4638 flight from Washington to Buffalo?

The average flight time from Washington to Buffalo is 52 minutes. The flight distance is 476 km / 296 miles and the average flight speed is 545 km/h / 339 mph.

How many AA4638 flights are operated per week?

1 flight per week. The flight AA4638 is operated on Sunday.

What is the On-Time Performance (OTP) of American Airlines Flight AA4638 Washington to Buffalo?

The Airportia On-Time Performance Rating for American Airlines Flight AA4638 is 5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest AA4638 flight?

The latest flight took off on Sunday, May 31st, 2026 with the flight status being Landed on 21:39.

How else can the flight AA4638 be referenced as?

This American Airlines flight can also be referenced as AAL4638, AA 4638, AAL 4638.

How often is flight AA4638 delayed?

On average, 0% of all AA4638 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled AA4638 flight or baggage issues?

If your AA4638 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 AA4638 Flight Tracker above for more details.

AA4638 and Washington DCA to Buffalo BUF Flights

Flight AA4638 is code-shared by 1 airline using the flight number AS4542

Other flights departing from Washington DCA: AA3352, AA5597, AA5164, AA1804

Other flights arriving at Buffalo BUF: B6634, AA574, AA703, AA564

All flights connecting Washington DCA to Buffalo BUF.

AA4638 American Airlines Flight: Washington to Buffalo Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: MS6113 J25156 A24159 RR8063 G4306 AD4248 WS9444 CP638 N9134 4D889
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.