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5A21 Flight Status Alpine Air Express: Billings to Miles City (AIP21)

5A 21 Billings to Miles City Flight Status

Alpine Air Express Flight 5A21 from Billings Logan International Airport BIL to Frank Wiley Field Airport MLS is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on May 22nd, 2026.
Check the table below for 5A21's most recent flight history:

5A 21 Flight Status & Schedule

Date Departure Arrival Status
May 22 06:32 07:07
En-Route
 Track >
Apr 03 06:31 07:10
En-Route
 Track >
Apr 02 06:56 07:31
En-Route
 Track >
Mar 06 06:43 07:33
En-Route
 Track >
Mar 05 06:37 07:26
En-Route
 Track >
< All BIL Departures All MLS Arrivals >

Alpine Air Express 5A 21 Billings to Miles City Flight Information

Alpine Air Express Flight 5A21 connects Billings, United States to Miles City, United States, taking off from Billings Logan International Airport BIL and landing at Frank Wiley Field Airport MLS.

How long is the 5A21 flight from Billings to Miles City?

The average flight time from Billings to Miles City is 41 minutes. The flight distance is 216 km / 134 miles and the average flight speed is 319 km/h / 198 mph.

What is the On-Time Performance (OTP) of Alpine Air Express Flight 5A21 Billings to Miles City?

The Airportia On-Time Performance Rating for Alpine Air Express Flight 5A21 is 5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest 5A21 flight?

The latest flight took off on Friday, May 22nd, 2026 with the flight status being En-Route on 07:07.

How else can the flight 5A21 be referenced as?

This Alpine Air Express flight can also be referenced as AIP21, AIP021, 5A021, 5A0021, 5A 21, AIP 21.

How often is flight 5A21 delayed?

On average, 40% of all 5A21 flights are delayed. The average delay is 2 minutes.

Can I get compensation for my delayed or cancelled 5A21 flight or baggage issues?

If your 5A21 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 5A21 Flight Tracker above for more details.

5A21 and Billings BIL to Miles City MLS Flights

Other flights departing from Billings BIL: DL2254, UA372, 9K1763, 5A1530

Other flights arriving at Miles City MLS: 5A1530, 5A1531, 5A1530, 5A1531

All flights connecting Billings BIL to Miles City MLS.

5A21 Alpine Air Express Flight: Billings to Miles City Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
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Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.