Flight number record

YX 5690

Republic Airways · Pittsburgh to Boston

Route: PIT → BOS
Departs: 06:09
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 5690, 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 5690 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 50 minutes. That rests on 365 flights, with a median arrival 15 minutes early.

Set against the rest of the country, YX 5690's record is 14 points better than the US average of 77.6%. That gap is worth roughly 141 fewer late arrivals for every thousand flights.

On time

91.7%

Arrivals under 15 minutes late, of 361 completed flights

Avg delay

49 min

Across delayed arrivals only, not all flights

Cancelled

1.10%

National rate is 1.81%

1 hour+ late

2.2%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. The median arrival is 15 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.

Schedule

When YX 5690 flies

YX 5690 flies PIT to BOS without a single fixed slot. Its most common scheduled departure was 06:09, used on 100 of 365 flights, with 06:08 (50 flights) and 06:06 (42 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:09100 flights27.4%
Departs 06:0850 flights13.7%
Departs 06:0642 flights11.5%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

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

A 06:09 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 5690 runs 2 points better at 91.7%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

YX 5690 next to PIT to BOS

Every carrier on PIT to BOS combined arrived on time 79.3% of the time across 2,151 flights, so YX 5690 is 12 points ahead of it. Republic flew 1,144 flights on the same city pair under all its flight numbers, including this one, and those ran 81.8% on time. Across its whole network Republic Airways managed 78.5%, which this flight beats by 13 points.

YX 5690 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 5690	365	91.7%	49 min	1.10%	A
All Republic Airways on PIT–BOS	1,144	81.8%	62 min	2.53%	B
All carriers on PIT–BOS	2,151	79.3%	74 min	2.84%	B
Republic Airways, whole network	361,482	78.5%	72 min	4.08%	B−

Across the year

YX 5690 quarter by quarter

Quarter by quarter YX 5690 held fairly steady: 91.3% in Jul–Sep 2025, 89.1% in Oct–Dec 2025, 88.4% in Jan–Mar 2026 and 97.8% in Apr–Jun 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights91.3%
Oct–Dec 202592 flights89.1%
Jan–Mar 202690 flights88.4%
Apr–Jun 202691 flights97.8%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, YX 5690 ranged from 86.5% on Wednesday to 94.2% on Thursday. With about 52 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why YX 5690 runs late

One category carries most of the weight here. Carrier accounts for 53% of the 1,471 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.

Carrier
53%
National Airspace System
37%
Late-arriving aircraft
7%
Extreme weather
3%

The largest share of delay minutes, 53%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 781 of the 1,471 delay minutes reported here. The split is drawn from 1,471 delay minutes reported on YX 5690.

Cancellations sit at 1.10% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 2.2% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

Every one of the 365 flights under YX 5690 in the data flew PIT to BOS. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 365 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 5690

For a booking, YX 5690 has one of the better records a US domestic flight can show: 91.7% on time and 1.10% cancelled. That is a base rate, not a promise about any single 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures