Flight number record

YX 4352

Republic Airways · Indianapolis to Washington

Route: IND → DCA
Departs: 07:39
Flights: 252
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s YX 4352, check with Republic Airways. Republic Airways flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.

YX 4352 earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 252 flights, with a median arrival 5 minutes early.

Set against the rest of the country, YX 4352's record is 7 points better than the US average of 77.3%. That gap is worth roughly 68 fewer late arrivals for every thousand flights.

On time

84.1%

Arrivals under 15 minutes late, of 246 completed flights

Avg delay

60 min

Across delayed arrivals only, not all flights

Cancelled

2.38%

National rate is 1.89%

1 hour+ late

5.7%

National rate is 8.3%

These figures cover 252 flights between September 2025 and August 2026. The median arrival is 5 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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Schedule

When YX 4352 flies

YX 4352 flies IND to DCA without a single fixed slot. Its most common scheduled departure was 07:39, used on 69 of 252 flights, with 09:15 (38 flights) and 15:18 (38 flights) next.

Departs 07:3969 flights27.4%
Departs 09:1538 flights15.1%
Departs 15:1838 flights15.1%

Scale runs 0% to 100%.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 07:39 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 4352 runs 5 points worse at 84.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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Against the route

YX 4352 next to IND to DCA

Every carrier on IND to DCA combined arrived on time 74.1% of the time across 2,021 flights, so YX 4352 is 10 points ahead of it. Republic flew 1,853 flights on the same city pair under all its flight numbers, including this one, and those ran 74.3% on time. Across its whole network Republic Airways managed 78.1%, which this flight beats by 6 points.

YX 4352 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 4352thin sample	252	84.1%	60 min	2.38%	B
All Republic Airways on IND–DCA	1,853	74.3%	57 min	3.72%	C−
All carriers on IND–DCA	2,021	74.1%	64 min	4.35%	C−
Republic Airways, whole network	364,452	78.1%	74 min	4.55%	B−

Across the year

YX 4352 quarter by quarter

YX 4352 did not run the same all year. Its best quarter was Jul–Sep 2026 at 92.6% on time and its weakest Oct–Dec 2025 at 75.5%, a swing of 17 points on roughly 50 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202530 flights90.0%
Oct–Dec 202550 flights75.5%
Jan–Mar 202637 flights85.7%
Apr–Jun 202679 flights80.8%
Jul–Sep 202656 flights92.6%

Scale runs 65% to 100%.

By weekday, YX 4352 did best on Tuesday at 94.7% on time and worst on Monday at 70.3%. Each day rests on about 36 flights, so a gap of 24 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late YX 4352 runs when it is late

YX 4352 often beats the schedule: 64 of 246 completed flights, 26%, arrived 15 minutes or more early. The 39 late arrivals split 14 under half an hour, 11 between 30 and 60 minutes, and 14 an hour or more.

15+ min early64 flights26.0%
Within 15 min143 flights58.1%
15–29 min late14 flights5.7%
30–59 min late11 flights4.5%
1–2 hours late8 flights3.3%
2+ hours late6 flights2.4%

Scale runs 0% to 100%.

Share of 246 completed flights by arrival against schedule.

8 of 31 late departures made up the time and arrived on time, 26% of them. In the other direction, 16 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DCA.

The worst days

Worst days for YX 4352

The latest arrival of the period was on 23 August 2026, 4 hours 10 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The five worst days are spread across August, December, April, November and May, with no single month standing out.

The latest arrivals of YX 4352 in the period
Date	Arrived late by	Largest filed cause
23 August 2026	4 hours 10 minutes	National Airspace System
8 December 2025	3 hours 24 minutes	Late-arriving aircraft
24 April 2026	2 hours 43 minutes	Carrier
10 November 2025	2 hours 24 minutes	Carrier
25 May 2026	2 hours 19 minutes	National Airspace System

Delay causes

Why YX 4352 runs late

National Airspace System accounts for 50% of the 2,352 delay minutes carriers reported here, and the remaining four split what is left.

National Airspace System
50%
Carrier
29%
Late-arriving aircraft
18%
Extreme weather
3%

50% 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 1,185 minutes out of 2,352, against a national NAS share of 21%. The split is drawn from 2,352 delay minutes reported on YX 4352.

Cancellations sit at 2.38% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

5.7% 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 about an hour, which a normal layover absorbs.

The 500 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.

The same number turns up on nine other city pairs in the data, including DCA to IND (146), CHS to DCA (10) and DCA to CHS (10), but none flew often enough under YX 4352 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IND to DCA only.

One caution: this is a thin sample. 252 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 YX 4352

For a booking, read YX 4352 as 84.1% on time with 2.38% cancelled over 252 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means Republic Airways’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures