| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 17 | AUS | IAD | 16:59 | 20:52 |
Delayed
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| Jul 13 | AUS | IAD | 17:12 | 21:00 |
Landed Late
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| Jul 10 | AUS | IAD | 16:23 | 20:07 |
Landed
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| Jul 06 | AUS | IAD | 16:41 | 20:21 |
Landed
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| Jul 03 | AUS | IAD | 16:08 | 19:57 |
Landed
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| Jun 26 | AUS | IAD | 17:06 | 20:47 |
Landed Late
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| Jun 19 | AUS | IAD | 18:37 | 22:20 |
Delayed
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| Jun 12 | AUS | IAD | 16:35 | 20:22 |
Landed
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| Jun 05 | AUS | IAD | 16:36 | 20:17 |
Landed
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| Jun 01 | AUS | IAD | 16:53 | 20:30 |
Landed
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Allegiant Air Flight G4251 connects Austin, United States to Washington, United States, taking off from Austin Bergstrom International Airport AUS and landing at Washington Dulles International Airport IAD.
How long is the G4251 flight from Austin to Washington?
The average flight time from Austin to Washington is 2 hours and 44 minutes. The flight distance is 2084 km / 1295 miles and the average flight speed is 762 km/h / 473 mph.
How many G4251 flights are operated per week?
2 flights per week. The flight G4251 is operated on Monday and Friday.
What is the On-Time Performance (OTP) of Allegiant Air Flight G4251 Austin to Washington?
The Airportia On-Time Performance Rating for Allegiant Air Flight G4251 is 4.5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest G4251 flight?
The latest flight took off on Saturday, July 18th, 2026 with the flight status being En-Route on 20:52.
How else can the flight G4251 be referenced as?
This Allegiant Air flight can also be referenced as AAY251, G40251, G4 251, AAY 251.
How often is flight G4251 delayed?
On average, 70% of all G4251 flights are delayed. The average delay is 38 minutes.
Can I get compensation for my delayed or cancelled G4251 flight or baggage issues?
If your G4251 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 G4251 Flight Tracker above for more details.
Other flights departing from Austin AUS: LH469, WN311, WN4143, WN277
Other flights arriving at Washington IAD: UA933, UA925, BA293, UA1223
All flights connecting Austin AUS to Washington IAD.