| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 06 | ATL | DCA | 14:36 | 15:51 |
Landed Late
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| Apr 04 | ATL | DCA | 13:35 | 14:59 |
Landed
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| Apr 03 | ATL | DCA | 13:59 | 15:27 |
Landed
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| Apr 02 | ATL | DCA | 14:06 | 15:25 |
Landed
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| Apr 01 | ATL | DCA | 13:25 | 14:53 |
Landed
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| Mar 31 | ATL | DCA | 13:28 | 14:56 |
Landed
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| Mar 30 | ATL | DCA | 13:54 | 15:28 |
Landed Late
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| Mar 28 | ATL | DCA | 13:38 | 14:55 |
Landed
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| Mar 27 | ATL | DCA | 14:00 | 15:24 |
Landed
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| Mar 26 | ATL | DCA | 13:28 | 15:01 |
Landed
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American Airlines Flight AA4378 connects Atlanta, United States to Washington, United States, taking off from Atlanta Hartsfield-Jackson International Airport ATL and landing at Washington Ronald Reagan National Airport DCA.
How long is the AA4378 flight from Atlanta to Washington?
The average flight time from Atlanta to Washington is 1 hour and 25 minutes. The flight distance is 880 km / 547 miles and the average flight speed is 624 km/h / 388 mph.
What is the On-Time Performance (OTP) of American Airlines Flight AA4378 Atlanta to Washington?
The Airportia On-Time Performance Rating for American Airlines Flight AA4378 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight AA4378 arriving at?
Flight AA4378 arrives at Washington Ronald Reagan National Airport (DCA) Terminal 2.
When was the latest AA4378 flight?
The latest flight took off on Monday, April 6th, 2026 with the flight status being Landed on 15:51.
How else can the flight AA4378 be referenced as?
This American Airlines flight can also be referenced as AAL4378, AA 4378, AAL 4378.
How often is flight AA4378 delayed?
On average, 50% of all AA4378 flights are delayed. The average delay is 18 minutes.
Can I get compensation for my delayed or cancelled AA4378 flight or baggage issues?
If your AA4378 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 AA4378 Flight Tracker above for more details.
Flight AA4378 is code-shared by 1 airline using the flight number AS4440
Other flights departing from Atlanta ATL: DL3942, DL730, WN302, AA5260
Other flights arriving at Washington DCA: WN2803, DL5627, WN164, AA5637
All flights connecting Atlanta ATL to Washington DCA.
