| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 18 | IAD | TYS | 12:57 | 14:02 |
Landed
|
Track > |
| Jul 17 | IAD | TYS | 13:19 | 14:20 |
Landed
|
Track > |
| Jul 16 | IAD | TYS | 14:27 | 15:31 |
Delayed
|
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| Jul 15 | IAD | TYS | 13:01 | 14:03 |
Landed
|
Track > |
| Jul 14 | IAD | TYS | 13:15 | 14:19 |
Landed
|
Track > |
| Jul 13 | IAD | TYS | 13:07 | 14:08 |
Landed
|
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| Jul 12 | IAD | TYS | 13:04 | 14:11 |
Landed
|
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| Jul 11 | IAD | TYS | 13:11 | 14:17 |
Landed
|
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| Jul 10 | IAD | TYS | 16:00 | 14:27 |
Unknown
|
Track > |
| Jul 09 | IAD | TYS | 13:15 | 14:22 |
Landed
|
Track > |
Air Canada Flight AC4257 connects Washington, United States to Knoxville, United States, taking off from Washington Dulles International Airport IAD and landing at Knoxville McGhee Tyson Airport TYS.
How long is the AC4257 flight from Washington to Knoxville?
The average flight time from Washington to Knoxville is 1 hour and 4 minutes. The flight distance is 674 km / 419 miles and the average flight speed is 610 km/h / 379 mph.
How many AC4257 flights are operated per week?
6 flights per week. The flight AC4257 is operated on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday.
What is the On-Time Performance (OTP) of Air Canada Flight AC4257 Washington to Knoxville?
The Airportia On-Time Performance Rating for Air Canada Flight AC4257 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest AC4257 flight?
The latest flight took off on Saturday, July 18th, 2026 with the flight status being Landed on 14:02.
How else can the flight AC4257 be referenced as?
This Air Canada flight can also be referenced as ACA4257, AC 4257, ACA 4257.
How often is flight AC4257 delayed?
On average, 10% of all AC4257 flights are delayed. The average delay is 64 minutes.
Can I get compensation for my delayed or cancelled AC4257 flight or baggage issues?
If your AC4257 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 AC4257 Flight Tracker above for more details.
Other flights departing from Washington IAD: UA803, UA1535, 9X127, 9X335
Other flights arriving at Knoxville TYS: UA6110, DL5455, WN41, UA3263
All flights connecting Washington IAD to Knoxville TYS.
