| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Dec 17 | IAD | BUF | 13:25 | 14:16 |
Landed
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| Dec 16 | IAD | BUF | 13:12 | 14:02 |
Landed
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| Dec 15 | IAD | BUF | 13:17 | 14:12 |
Landed
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| Dec 14 | IAD | BUF | 13:42 | 14:32 |
Landed
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| Dec 12 | IAD | BUF | 13:15 | 14:06 |
Landed
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| Dec 11 | IAD | BUF | 13:11 | 14:05 |
Landed
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| Dec 10 | IAD | BUF | 13:22 | 14:16 |
Landed
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| Dec 09 | IAD | BUF | 13:03 | 13:56 |
Landed
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| Dec 08 | IAD | BUF | 13:24 | 14:15 |
Landed
|
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| Dec 07 | IAD | BUF | 13:20 | 14:16 |
Landed
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Track > |
United Airlines Flight UA4239 connects Washington, United States to Buffalo, United States, taking off from Washington Dulles International Airport IAD and landing at Buffalo Niagara International Airport BUF.
How long is the UA4239 flight from Washington to Buffalo?
The average flight time from Washington to Buffalo is 52 minutes. The flight distance is 457 km / 284 miles and the average flight speed is 523 km/h / 325 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA4239 Washington to Buffalo?
The Airportia On-Time Performance Rating for United Airlines Flight UA4239 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA4239 flight?
The latest flight took off on Wednesday, December 17th, 2025 with the flight status being Landed on 14:16.
How else can the flight UA4239 be referenced as?
This United Airlines flight can also be referenced as UAL4239, UA 4239, UAL 4239.
How often is flight UA4239 delayed?
On average, 10% of all UA4239 flights are delayed. The average delay is 10 minutes.
Can I get compensation for my delayed or cancelled UA4239 flight or baggage issues?
If your UA4239 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 UA4239 Flight Tracker above for more details.
Other flights departing from Washington IAD: UA1697, UA4847, UA4561, UA1652
Other flights arriving at Buffalo BUF: DL4971, WN1674, UA4496, AA3860
All flights connecting Washington IAD to Buffalo BUF.