Flight number record
YX 5703
Republic Airways · Baltimore to Boston
- Route
- BWI → BOS
- Departs
- 10:54
- Flights
- 250
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 5703, 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 5703 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 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 250 flights, with a median arrival 13 minutes early.
Set against the rest of the country, YX 5703's record is 14 points better than the US average of 77.3%. That gap is worth roughly 140 fewer late arrivals for every thousand flights.
Key figures
On time
91.3%
Arrivals under 15 minutes late, of 241 completed flights
Avg delay
91 min
Across delayed arrivals only, not all flights
Cancelled
3.20%
National rate is 1.89%
1 hour+ late
3.7%
National rate is 8.3%
These figures cover 250 flights between September 2025 and August 2026. The median arrival is 13 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 5703 flies
YX 5703 flies BWI to BOS without a single fixed slot. Its most common scheduled departure was 10:54, used on 67 of 250 flights, with 09:00 (60 flights) and 10:40 (30 flights) next.
- Departs 10:5467 flights26.8%
- Departs 09:0060 flights24.0%
- Departs 10:4030 flights12.0%
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 10:54 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and YX 5703 runs 7 points better at 91.3%. 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 5703 next to BWI to BOS
Every carrier on BWI to BOS combined arrived on time 74.1% of the time across 3,540 flights, so YX 5703 is 17 points ahead of it. Republic flew 1,099 flights on the same city pair under all its flight numbers, including this one, and those ran 80.5% on time. Across its whole network Republic Airways managed 78.1%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 5703thin sample | 250 | 91.3% | 91 min | 3.20% | A− |
| All Republic Airways on BWI–BOS | 1,099 | 80.5% | 85 min | 4.09% | B− |
| All carriers on BWI–BOS | 3,540 | 74.1% | 67 min | 3.16% | C− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 5703 quarter by quarter
Quarter by quarter YX 5703 held fairly steady: 91.7% in Jan–Mar 2026, 92.1% in Apr–Jun 2026 and 93.2% in Jul–Sep 2026. A spread of 2 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Oct–Dec 20259 flights—
- Jan–Mar 202689 flights91.7%
- Apr–Jun 202690 flights92.1%
- Jul–Sep 202662 flights93.2%
Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, YX 5703 did best on Tuesday at 100.0% on time and worst on Monday at 81.8%. Each day rests on about 36 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 5703 runs when it is late
YX 5703 often beats the schedule: 100 of 241 completed flights, 41%, arrived 15 minutes or more early. The 21 late arrivals split 2 under half an hour, 10 between 30 and 60 minutes, and 9 an hour or more.
- 15+ min early100 flights41.5%
- Within 15 min120 flights49.8%
- 15–29 min late2 flights0.8%
- 30–59 min late10 flights4.1%
- 1–2 hours late5 flights2.1%
- 2+ hours late4 flights1.7%
Scale runs 0% to 100%.
Share of 241 completed flights by arrival against schedule.
4 of 24 late departures made up the time and arrived on time, 17% of them. Only 1 left on time and still arrived late.
The worst days
Worst days for YX 5703
The latest arrival of the period was on 22 February 2026, 4 hours 54 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On four of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 22 February 2026 | 4 hours 54 minutes | Late-arriving aircraft |
| 27 December 2025 | 4 hours 24 minutes | Carrier |
| 16 April 2026 | 3 hours 47 minutes | Carrier |
| 21 December 2025 | 3 hours 45 minutes | Carrier |
| 20 July 2026 | 1 hour 58 minutes | Carrier |
Delay causes
Why YX 5703 runs late
Carrier accounts for 65% of the 1,919 delay minutes carriers reported here, and the remaining four split what is left.
- 65%Carrier
- 26%Late-arriving aircraft
- 9%National Airspace System
- 0%Extreme weather
The largest share of delay minutes, 65%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,246 of the 1,919 delay minutes reported here. The split is drawn from 1,919 delay minutes reported on YX 5703.
Cancellations run at 3.20%, 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.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 3.7% land an hour or more behind schedule, against 8.3% 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 same number turns up on two other city pairs in the data, including BOS to BWI (249) and PIT to JFK (105), but none flew often enough under YX 5703 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BWI to BOS only.
One caution: this is a thin sample. 250 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 5703
For a booking, the cancellation rate is the figure to plan around on YX 5703: 3.20% of its 250 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- BWI to BOS, every carrier and departure
- BOS to BWI, the return direction
- Republic Airways 5644 on the same route65.5%
- Baltimore/Washington International Thurgood Marshall (BWI) delay statistics
- Boston Logan International (BOS) delay statistics
- Republic Airways on-time record
- Every Republic Airways flight number with a record
- The most and least reliable flight numbers in the US
- What a cancellation rate actually tells you (and what it hides)
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 ; recomputed monthly. How this data is collected.