Carrier route record
YXEWR→DTW
Republic Airways · Newark to Detroit
- Flights
- 1,558
- Period
- September 2025 to August 2026
- Share of route
- 43%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Republic Airways.
Republic on EWR to DTW carries a cancellation problem, not just a delay problem: 6.7% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, more than four flights in five arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,558 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 1,612 at 79.6% on time.
Set against the rest of the country, Republic's EWR to DTW record is 7 points better than the US average of 77.3%. That gap is worth roughly 71 fewer late arrivals for every thousand flights.
Key figures
On time
84.4%
Arrivals under 15 minutes late, of 1,452 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
6.68%
National rate is 1.89%
Whole route
79.9%
Every carrier on EWR to DTW, 3,660 flights
These figures cover 1,558 flights between September 2025 and August 2026. The median arrival is 13 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Republic against every carrier on EWR to DTW
Republic flew 1,558 of the 3,660 flights on EWR to DTW, about 43% of it. Its 84.4% on time is 5 points better than the route as a whole, which runs 79.9%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from Republic at 84.4% to Spirit at 65.7%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 79.6% of the time; Spirit Airlines manages 65.7%. Sample sizes sit next to every figure, because a two-point gap across 433 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways (this page) | 1,558 | 84.4% | 70 min | 6.68% | B− |
| Delta Air Lines | 1,612 | 79.6% | 108 min | 4.03% | B− |
| United Airlinesthin sample | 57 | 75.0% | 47 min | 1.75% | B |
| Spirit Airlines | 433 | 65.7% | 75 min | 8.31% | C− |
Spirit Airlines cancels 8.3% 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.
Flight by flight
Republic flight numbers on EWR to DTW
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Departure window
When Republic runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 21 points, against 14 points between the best and worst carrier.
- 5am–8am126 flights96.0%
- 8am–11am262 flights85.0%
- 11am–2pm143 flights91.0%
- 2pm–5pm509 flights84.6%
- 5pm–8pm303 flights81.4%
- 8pm–5am215 flights75.3%
Scale runs 65% to 100%.
Book the early departure. Flights leaving between 5am–8am arrive on time 96.0% of the time, against 75.3% for the overnight window. That is 21 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 509 flights scheduled in it.
Across the year
Republic on EWR to DTW through the year
December is the weak month at 75.7% on time, against 94.1% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. July was the busiest month here, with 153 flights.
Across the week, Tuesday is the strongest day at 88.0% on time and Sunday the weakest at 78.8%, a spread of 9 points.
Arrival by arrival
How late Republic on EWR to DTW runs when it is late
Republic on EWR to DTW often beats the schedule: 649 of 1,452 completed flights, 45%, arrived 15 minutes or more early. The 226 late arrivals split 68 under half an hour, 76 between 30 and 60 minutes, and 82 an hour or more.
- 15+ min early649 flights44.7%
- Within 15 min577 flights39.7%
- 15–29 min late68 flights4.7%
- 30–59 min late76 flights5.2%
- 1–2 hours late46 flights3.2%
- 2+ hours late36 flights2.5%
Scale runs 0% to 100%.
Share of 1,452 completed flights by arrival against schedule.
33 of 189 late departures made up the time and arrived on time, 17% of them. 70 flights left on time and still arrived late.
The worst days
Worst days for Republic on EWR to DTW
The latest arrival of the period was on 11 June 2026, 11 hours 38 minutes behind schedule; most of its delay minutes were filed as extreme weather. Three of the five worst days fell in June 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 June 2026 | 11 hours 38 minutes | Extreme weather |
| 3 July 2026 | 9 hours 57 minutes | Carrier |
| 17 August 2026 | 7 hours 48 minutes | Carrier |
| 12 June 2026 | 7 hours 3 minutes | Extreme weather |
| 6 June 2026 | 3 hours 50 minutes | Extreme weather |
Delay causes
Why Republic runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 16,000 reported delay minutes.
- 31%Late-arriving aircraft
- 31%National Airspace System
- 28%Carrier
- 9%Extreme weather
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 96.0% on time here. The split is drawn from 15,876 reported delay minutes.
No single cause dominates. late-arriving aircraft at 31%, national airspace system at 31% and carrier at 28% split the 16,000 reported delay minutes between them. An even spread like this usually means the operation is running close to its designed capacity with no one obvious weak point, and it is the hardest pattern for a traveller to route around.
Cancellations run at 6.68%, against 1.89% nationally. That is about one flight in fifteen 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
5.6% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
At 488 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.
The return leg runs 81.8% on time across 1,539 flights, within 3 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,558 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking Republic on EWR to DTW
Put together: the delay figures matter less here than the 6.68% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,452 completed flights over 12 months sit behind that.
Related
Where to go next
- EWR to DTW, every carrier
- Republic on DTW to EWR, the return leg
- Delta Air Lines on EWR to DTW79.6%
- Spirit Airlines on EWR to DTW65.7%
- Republic Airways network-wide record
- Newark Liberty International (EWR) delay statistics
- Detroit Metropolitan Wayne County (DTW) 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.