NK603Chicago to Newark
Spirit Airlines flight NK603 flies from Chicago O'Hare (ORD) to Newark Liberty (EWR), 1,154 km. Over November 2025 to January 2026 it usually arrives about 28 minutes late: 58% of 57 flights arrived within 15 minutes of schedule and 12.3% were cancelled (US Department of Transportation data).
On-time record, last 12 months
Every operation of NK603, November 2025 to January 2026: 57 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as NK603
Other flights from Chicago to Newark
More about Chicago O'Hare (ORD) 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/nk603" title="NK603 is on time 58% of the time on TripStow"><img src="https://tripstow.com/badge/flights/nk603.svg" alt="NK603 is on time 58% of the time" width="360" height="88" loading="lazy"></a>
<a href="https://tripstow.com/flights/nk603" title="NK603 is on time 58% of the time on TripStow"><img src="https://tripstow.com/badge/flights/nk603.svg?theme=light" alt="NK603 is on time 58% of the time" width="360" height="88" loading="lazy"></a>[](https://tripstow.com/flights/nk603)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