Carrier performance at one airport
YX→IND
Republic Airways at Indianapolis International
- Departures
- 13,861
- Period
- September 2025 to August 2026
- Routes
- 9
- Rank here
- #3 of 12
Republic Airways at Indianapolis carries a cancellation problem, not just a delay problem: 3.4% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about 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 13,861 flights, of which Delta Air Lines flew 4,424 at 88.7% on time.
Measured against the airport rather than the country, Republic Airways runs about a point ahead of the 80.6% weighted average across all carriers at IND. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.
Key figures
On time
81.6%
13,361 completed departures
Avg delay
68 min
Across delayed flights only
Cancelled
3.37%
At IND, this carrier only
Rank here
#3
Of 12 carriers clearing the floor at IND
These figures cover 14,000 flights between September 2025 and August 2026. The median arrival is 10 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.
Against the competition
Every carrier at IND, ranked
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 88.7% of the time; Allegiant Air manages 74.7%. Sample sizes sit next to every figure, because a two-point gap across 1,604 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 4,424 | 88.7% | 75 min | 1.06% | A |
| Spirit Airlines | 1,056 | 83.8% | 93 min | 3.50% | B− |
| Republic Airways (this page) | 13,861 | 81.6% | 68 min | 3.37% | B− |
| American Airlines | 6,780 | 80.8% | 108 min | 2.08% | B |
| Southwest Airlines | 13,053 | 79.5% | 53 min | 0.70% | B+ |
| United Airlines | 2,738 | 77.7% | 73 min | 1.02% | B |
| SkyWest Airlines | 2,176 | 77.1% | 102 min | 2.76% | B |
| Envoy Air | 646 | 76.8% | 95 min | 2.32% | B |
| Alaska Airlines | 567 | 76.2% | 49 min | 1.41% | B |
| PSA Airlines | 670 | 75.2% | 137 min | 9.85% | B− |
| Frontier Airlines | 1,024 | 74.7% | 92 min | 1.17% | C |
| Allegiant Air | 1,604 | 74.7% | 82 min | 0.75% | C+ |
PSA Airlines cancels 9.8% 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.
Route by route
Where Republic Airways flies from IND
Republic Airways operates 9 routes out of IND with enough volume to report. Route records inside one carrier at one airport still spread widely, because a short shuttle and a transcontinental have very different exposure to a late inbound.
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| IND to ORD · Chicago | 2,778 | 83.2% | 72 min | 2.52% | B |
| IND to LGA · New York | 2,533 | 80.9% | 69 min | 4.90% | B− |
| IND to BOS · Boston | 1,975 | 78.9% | 71 min | 2.78% | B |
| IND to EWR · Newark | 1,947 | 85.0% | 76 min | 4.67% | A− |
| IND to DCA · Washington | 1,853 | 74.3% | 57 min | 3.72% | C− |
| IND to JFK · New York | 974 | 82.8% | 73 min | 3.39% | B− |
| IND to IAD · Washington | 938 | 85.0% | 69 min | 1.28% | A |
| IND to PHL · Philadelphia | 574 | 90.0% | 59 min | 1.92% | A |
| IND to DTW · Detroitthin sample | 257 | 82.0% | 56 min | 0.78% | B+ |
Flight by flight
Republic Airways flight numbers from IND
15 Republic Airways flight numbers leaving IND flew their main route often enough to have a record of their own. Grouped by destination.
- YX 4716to BOS 07:0088.2%
- YX 4726to BOS 18:4368.0%
- YX 5631to BOS 06:0093.6%
- YX 4352to DCA 07:3984.1%
- YX 4626to DCA 06:0082.3%
- YX 4802to DCA 10:0082.4%
- YX 3567to EWR 06:0091.6%
- YX 3530to IAD 14:4881.9%
- YX 3709to IAD 10:0592.1%
- YX 4592to JFK 12:2879.2%
- YX 4631to JFK 07:1191.4%
- YX 4601to LGA 14:2569.5%
- YX 4797to LGA 07:0088.6%
- YX 5660to LGA 08:0085.5%
- YX 3479to ORD 06:0092.7%
Departure window
Best time of day for this operation
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 20 points, against 14 points between the best and worst carrier.
- 5am–8am3,590 flights89.3%
- 8am–11am2,820 flights87.0%
- 11am–2pm2,729 flights81.7%
- 2pm–5pm2,141 flights75.0%
- 5pm–8pm2,166 flights68.9%
- 8pm–5am415 flights72.2%
Scale runs 60% to 95%.
Book the early departure. Flights leaving between 5am–8am arrive on time 89.3% of the time, against 68.9% for the evening window. That is 20 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 3,590 flights scheduled in it.
Across the year
Seasonal pattern
December is the weak month at 70.5% on time, against 86.4% 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 1,301 flights.
Delay causes
What holds this operation up
- 46%National Airspace System
- 28%Late-arriving aircraft
- 21%Carrier
- 4%Extreme weather
- 0%Security
46% 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 78,000 minutes out of 168,000, against a national NAS share of 21%. The split is drawn from 167,826 reported delay minutes.
Cancellations run at 3.37%, against 1.89% nationally. That is about one flight in 30 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.
6.9% 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.
13,861 flights sit behind these numbers, which is a large enough sample that the headline rate is not moving on noise. Where a sub-group falls below 30 flights the site shows a dash instead of a percentage.
Put together: the delay figures matter less here than the 3.37% 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. 13,361 completed flights over 12 months sit behind that.
Common questions
Republic Airways at IND
How often is Republic Airways at IND delayed?
Roughly one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 18.4% of the 13,861 flights in this analysis, against 22.7% nationally. Delayed flights are late by a little over an hour on average.
Which airline is most reliable on Republic Airways at IND?
Delta Air Lines leads at 88.7% on time across 4,424 flights. Allegiant Air is at the other end on 74.7%, a gap of 14 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on Republic Airways at IND?
The 5am–8am departure window is the strongest at 89.3% on time. The 5pm–8pm window is the weakest at 68.9%, 20 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are December delays on Republic Airways at IND?
December is the weakest month at 70.5% on time, compared with 86.4% in May. Across the year that is 16 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- Republic Airways network-wide record
- Indianapolis International (IND) all carriers
- IND to ORD route record83.2%
- IND to LGA route record80.9%
- IND to BOS route record78.9%
- IND to EWR route record85.0%
- Do airlines run better at their own hubs?
- The best time of day to fly, according to 7.05 million flight records
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.