Flight number record

YX 5684

Republic Airways · Cleveland to Boston

Route: CLE → BOS
Departs: 06:00
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s YX 5684, 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 5684 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 a little over an hour. That rests on 365 flights, with a median arrival 17 minutes early.

Set against the rest of the country, YX 5684's record is 14 points better than the US average of 77.6%. That gap is worth roughly 140 fewer late arrivals for every thousand flights.

On time

91.6%

Arrivals under 15 minutes late, of 358 completed flights

Avg delay

75 min

Across delayed arrivals only, not all flights

Cancelled

1.92%

National rate is 1.81%

1 hour+ late

3.9%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. The median arrival is 17 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 5684 flies

YX 5684 flies CLE to BOS without a single fixed slot. Its most common scheduled departure was 06:00, used on 190 of 365 flights, with 06:10 (61 flights) and 06:05 (55 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00190 flights52.1%
Departs 06:1061 flights16.7%
Departs 06:0555 flights15.1%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 5684 runs 2 points better at 91.6%. 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 5684 next to CLE to BOS

Every carrier on CLE to BOS combined arrived on time 78.8% of the time across 1,682 flights, so YX 5684 is 13 points ahead of it. Republic flew 868 flights on the same city pair under all its flight numbers, including this one, and those ran 83.7% on time. Across its whole network Republic Airways managed 78.5%, which this flight beats by 13 points.

YX 5684 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 5684	365	91.6%	75 min	1.92%	A
All Republic Airways on CLE–BOS	868	83.7%	70 min	2.19%	B
All carriers on CLE–BOS	1,682	78.8%	72 min	2.26%	B
Republic Airways, whole network	361,482	78.5%	72 min	4.08%	B−

Across the year

YX 5684 quarter by quarter

Quarter by quarter YX 5684 held fairly steady: 94.4% in Jul–Sep 2025, 88.0% in Oct–Dec 2025, 87.1% in Jan–Mar 2026 and 96.7% in Apr–Jun 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights94.4%
Oct–Dec 202592 flights88.0%
Jan–Mar 202690 flights87.1%
Apr–Jun 202691 flights96.7%

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

By weekday, YX 5684 did best on Friday at 98.0% on time and worst on Monday at 85.7%. Each day rests on about 52 flights, so a gap of 12 points is worth noticing but could still narrow in another year.

Delay causes

Why YX 5684 runs late

One category carries most of the weight here. Carrier accounts for 80% of the 2,234 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
80%
National Airspace System
19%
Extreme weather
1%

The largest share of delay minutes, 80%, 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 1,787 of the 2,234 delay minutes reported here. The split is drawn from 2,234 delay minutes reported on YX 5684.

Cancellations sit at 1.92% 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 3.9% 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.

The 563 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

Every one of the 365 flights under YX 5684 in the data flew CLE 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 5684

For a booking, read YX 5684 as 91.6% on time with 1.92% cancelled over 365 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures