NK1421Austin to Newark
Spirit Airlines flight NK1421 flies from Austin Bergstrom (AUS) to Newark Liberty (EWR), 2,417 km. Over August 2025 to January 2026 it usually arrives about 29 minutes late: 58% of 65 flights arrived within 15 minutes of schedule and 4.6% were cancelled (US Department of Transportation data).
On-time record, last 12 months
Every operation of NK1421, August 2025 to January 2026: 65 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as NK1421
Other flights from Austin to Newark
More about Austin Bergstrom (AUS) and Newark Liberty (EWR).
Embed this on your site
A live badge for travel blogs, forums and trip reports. It updates as new data comes in, and links back here for the full stats.
<a href="https://tripstow.com/flights/nk1421" title="NK1421 is on time 58% of the time on TripStow"><img src="https://tripstow.com/badge/flights/nk1421.svg" alt="NK1421 is on time 58% of the time" width="360" height="88" loading="lazy"></a>
<a href="https://tripstow.com/flights/nk1421" title="NK1421 is on time 58% of the time on TripStow"><img src="https://tripstow.com/badge/flights/nk1421.svg?theme=light" alt="NK1421 is on time 58% of the time" width="360" height="88" loading="lazy"></a>[](https://tripstow.com/flights/nk1421)Flying soon?
Forward your booking to TripStow and get your trip built for you, with check-in reminders, punctuality for every flight and a map of everywhere you have been.
Start free