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Ranking & search details
34 nonstop · ranked by overall best · 22 hidden by your Most reliable time setting (they leave at other times of day) · showing the top 3
Most reliable time: morning departures (5–11 AM), the window with the best on-time odds for this trip. Turn off “Most reliable” under Departure time in Advanced settings to see every time.
Fares seen on this date: nonstop from 102 (recent searches, one way, per person; each card opens the live price)
12 matching trips
Why this is our top pick
- This morning flight leaves in the most reliable time of day on this route: its best departures have an 89% reliability rating vs 64% for night departures.
- American trips we compared arrive on time 76% of the time on average, 13 points more often than United (63%).
- Compared with the next-best option (Republic 3565 on the Embraer E175), it arrives on time 7 points more often; it flies a newer plane (about 4 vs 9 years old).
- Legroom was comparable across the flights we compared (30 in), so it didn't set them apart.
Aircraft and legroom reflect the planes each flight has flown recently. Airlines can swap planes and seat maps change, so check the airline’s seat map when you book.
IND → ORD
Indianapolis to Chicago: 5,186 nonstop flights a year
On time (12 months)
77%
Cancelled
2.8%
avg delay 21 min
Best time to leave
Before 9 AM
85% on time vs 55% 6 to 9 PM
Most reliable airline
Republic
81% chance on time
Lowest nonstop fare seen in the next two months: $102 (American 3053 on 2026-10-25). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Republic Airways (sold as American Eagle, Delta Connection or United Express)81%
2,714 flights · 83% on time as flown · 1.8% cancel
- Envoy Air (sold as American Eagle)77%
593 flights · 78% on time as flown · 1.8% cancel
- United Airlines66%
749 flights · 68% on time as flown · 2.6% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)64%
649 flights · 67% on time as flown · 5.4% cancel
- American Airlines63%
481 flights · 67% on time as flown · 5.6% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM85%
1,392 flights · avg delay 11 min
- 9 AM to noon84%
1,198 flights · avg delay 13 min
- Noon to 3 PM77%
1,065 flights · avg delay 20 min
- 3 to 6 PM68%
923 flights · avg delay 32 min
- 6 to 9 PM55%
586 flights · avg delay 45 min
Best day: Wednesday (85%). Worst: Friday (79%).
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure