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G4121 Flight Status Allegiant Air: Idaho Falls to Las Vegas (AAY121)

G4 121 Idaho Falls to Las Vegas Flight Status

Allegiant Air Flight G4121 from Idaho Falls Regional Airport IDA to Las Vegas McCarran International Airport LAS is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on June 16th, 2025.
Check the table below for G4121's most recent flight history:

G4 121 Flight Status & Schedule

Date Departure Arrival Status
Jun 16 19:08 19:34
Landed
 Track >
Jun 09 19:11 19:29
Landed
 Track >
< All IDA Departures All LAS Arrivals >

Allegiant Air G4 121 Idaho Falls to Las Vegas Flight Information

Allegiant Air Flight G4121 connects Idaho Falls, United States to Las Vegas, United States, taking off from Idaho Falls Regional Airport IDA and landing at Las Vegas McCarran International Airport LAS.

How long is the G4121 flight from Idaho Falls to Las Vegas?

The average flight time from Idaho Falls to Las Vegas is 1 hour and 22 minutes. The flight distance is 867 km / 539 miles and the average flight speed is 636 km/h / 395 mph.

What is the On-Time Performance (OTP) of Allegiant Air Flight G4121 Idaho Falls to Las Vegas?

The Airportia On-Time Performance Rating for Allegiant Air Flight G4121 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight G4121 arriving at?

Flight G4121 arrives at Las Vegas McCarran International Airport (LAS) Terminal 1.

When was the latest G4121 flight?

The latest flight took off on Tuesday, June 17th, 2025 with the flight status being Landed on 19:34.

How else can the flight G4121 be referenced as?

This Allegiant Air flight can also be referenced as AAY121, G40121, G4 121, AAY 121.

How often is flight G4121 delayed?

On average, 100% of all G4121 flights are delayed. The average delay is 10 minutes.

Can I get compensation for my delayed or cancelled G4121 flight or baggage issues?

If your G4121 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 G4121 Flight Tracker above for more details.

G4121 and Idaho Falls IDA to Las Vegas LAS Flights

Other flights departing from Idaho Falls IDA: G41722, G41599, G4758, UA5956

Other flights arriving at Las Vegas LAS: UA1548, NK3800, UA1770, WN6477

All flights connecting Idaho Falls IDA to Las Vegas LAS.

G4121 Allegiant Air Flight: Idaho Falls to Las Vegas Route Map

G4121 Allegiant Air Flight Map: Idaho Falls to Las Vegas
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
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See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.