Carrier route record
NKORD→EWR
Spirit Airlines · Chicago to Newark
- Flights
- 157
- Period
- July 2025 to June 2026
- Share of route
- 3%
- Carriers
- 5
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Spirit Airlines.
Spirit on ORD to EWR earns an F−, which is as low as this site's scale goes for a reason. Only 43.2% of flights arrive inside the 15-minute window, 34 points worse than the national rate of 77.6%. Late arrivals average a little over an hour. Treat any tight connection here as a coin flip. That rests on 157 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 657 at 79.3% on time.
Envoy Air is the most reliable of the three carriers covered here at 79.3% on time across 657 flights.
Key figures
On time
43.2%
Arrivals under 15 minutes late, of 132 completed flights
Avg delay
80 min
Across delayed arrivals only, not all flights
Cancelled
14.65%
National rate is 1.81%
Whole route
69.4%
Every carrier on ORD to EWR, 6,044 flights
These figures cover 157 flights between July 2025 and June 2026. Beyond the headline rate, 36.4% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
Spirit against every carrier on ORD to EWR
Spirit flew 157 of the 6,044 flights on ORD to EWR, about 3% of it. Its 43.2% on time is 26 points worse than the route as a whole, which runs 69.4%. Ranked by on-time rate it is last of five carriers on the route, where the range runs from Envoy at 79.3% to Spirit at 43.2%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. Envoy Air arrives on time 79.3% of the time; American Airlines manages 55.6%. Sample sizes sit next to every figure, because a two-point gap across 737 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Air | 657 | 79.3% | 62 min | 5.18% | B− |
| United Airlines | 4,391 | 71.3% | 86 min | 2.37% | C |
| Republic Airwaysthin sample | 102 | 60.2% | 83 min | 7.84% | D− |
| American Airlines | 737 | 55.6% | 83 min | 3.80% | D− |
| Spirit Airlines (this page)thin sample | 157 | 43.2% | 80 min | 14.65% | F− |
Envoy Air cancels 5.2% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Departure window
When Spirit runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 23 points, against 24 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am21 flights—
- 11am–2pm10 flights—
- 2pm–5pm53 flights51.2%
- 5pm–8pm66 flights28.3%
- 8pm–5am7 flights—
Scale runs 20% to 55%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 28.3% on time, against 51.2% for the 2pm–5pm slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5pm–8pm window is the busiest, with 66 flights scheduled in it.
Across the year
Spirit on ORD to EWR through the year
- Jul–Sep 20257 flights—
- Oct–Dec 202546 flights56.4%
- Jan–Mar 202680 flights41.5%
- Apr–Jun 202624 flights—
Scale runs 35% to 60%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 43.2% on time across 157 flights.
Split by quarter, Spirit on ORD to EWR logged 7 flights in Jul–Sep 2025, 46 flights in Oct–Dec 2025, 80 flights in Jan–Mar 2026 and 24 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 43.2% annual figure is the one to use.
Delay causes
Why Spirit runs late on this route
One category carries most of the weight here. National Airspace System accounts for 47% of the 6,021 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 47%National Airspace System
- 30%Late-arriving aircraft
- 16%Carrier
- 7%Extreme weather
- 0%Security
47% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,832 minutes out of 6,021, against a national NAS share of 21%. The split is drawn from 6,021 reported delay minutes.
Cancellations run at 14.65%, against 1.81% nationally. That is about one flight in seven cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 36.4% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 719 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 53.8% on time across 156 flights, 11 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 11 points of difference.
One caution: this is a thin sample. 157 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Spirit on ORD to EWR
Put together: the delay figures matter less here than the 14.65% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 2pm–5pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 132 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to EWR, every carrier
- Spirit on EWR to ORD, the return leg
- Envoy Air on ORD to EWR79.3%
- United Airlines on ORD to EWR71.3%
- Republic Airways on ORD to EWR60.2%
- American Airlines on ORD to EWR55.6%
- Spirit Airlines network-wide record
- Chicago O'Hare International (ORD) delay statistics
- Newark Liberty International (EWR) delay statistics
- The US routes with the most cancellations
- Same route, different airline: where the carrier you pick matters most
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.