Flight number record
DL 2222
Delta Air Lines · Boston to Detroit
- Route
- BOS → DTW
- Departs
- 13:10
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2222, check with Delta Air Lines.
DL 2222 lands a B, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 364 flights, with a median arrival 6 minutes early.
Key figures
On time
80.7%
Arrivals under 15 minutes late, of 357 completed flights
Avg delay
85 min
Across delayed arrivals only, not all flights
Cancelled
1.92%
National rate is 1.89%
1 hour+ late
9.5%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 2026. Beyond the headline rate, 9.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 2222 flies
DL 2222 flies BOS to DTW without a single fixed slot. Its most common scheduled departure was 13:10, used on 110 of 364 flights, with 13:05 (74 flights) and 13:00 (61 flights) next.
- Departs 13:10110 flights30.2%
- Departs 13:0574 flights20.3%
- Departs 13:0061 flights16.8%
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 13:10 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and DL 2222 runs 2 points better at 80.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
DL 2222 next to BOS to DTW
Every carrier on BOS to DTW combined arrived on time 75.7% of the time across 2,575 flights, so DL 2222 is 5 points ahead of it. Delta flew 1,718 flights on the same city pair under all its flight numbers, including this one, and those ran 78.1% on time. Across its whole network Delta Air Lines managed 81.1%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2222thin sample | 364 | 80.7% | 85 min | 1.92% | B |
| All Delta Air Lines on BOS–DTW | 1,718 | 78.1% | 79 min | 2.21% | B |
| All carriers on BOS–DTW | 2,575 | 75.7% | 78 min | 2.80% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2222 quarter by quarter
Quarter by quarter DL 2222 held fairly steady: 86.7% in Jul–Sep 2025, 78.0% in Oct–Dec 2025, 81.2% in Jan–Mar 2026, 82.2% in Apr–Jun 2026 and 78.7% in Jul–Sep 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 202530 flights86.7%
- Oct–Dec 202591 flights78.0%
- Jan–Mar 202690 flights81.2%
- Apr–Jun 202691 flights82.2%
- Jul–Sep 202662 flights78.7%
Scale runs 70% to 90%.
By weekday, DL 2222 did best on Wednesday at 88.5% on time and worst on Monday at 68.6%. Each day rests on about 52 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2222 runs when it is late
DL 2222 often beats the schedule: 94 of 357 completed flights, 26%, arrived 15 minutes or more early. The 69 late arrivals split 19 under half an hour, 16 between 30 and 60 minutes, and 34 an hour or more.
- 15+ min early94 flights26.3%
- Within 15 min194 flights54.3%
- 15–29 min late19 flights5.3%
- 30–59 min late16 flights4.5%
- 1–2 hours late24 flights6.7%
- 2+ hours late10 flights2.8%
Scale runs 0% to 100%.
Share of 357 completed flights by arrival against schedule.
18 of 77 late departures made up the time and arrived on time, 23% of them. 10 flights left on time and still arrived late.
The worst days
Worst days for DL 2222
The latest arrival of the period was on 6 March 2026, 8 hours 24 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 March 2026 | 8 hours 24 minutes | Carrier |
| 29 March 2026 | 7 hours 49 minutes | Carrier |
| 13 April 2026 | 7 hours 39 minutes | Carrier |
| 6 January 2026 | 5 hours 1 minute | Carrier |
| 7 August 2026 | 3 hours 23 minutes | Late-arriving aircraft |
Delay causes
Why DL 2222 runs late
Late-arriving aircraft accounts for 45% of the 5,872 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Late-arriving aircraft
- 44%Carrier
- 11%National Airspace System
- 0%Extreme weather
45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,872 reported delay minutes here, that single category outweighs weather by 45 to one. The split is drawn from 5,872 delay minutes reported on DL 2222.
Cancellations sit at 1.92% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
9.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 632 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.
Every one of the 364 flights under DL 2222 in the data flew BOS to DTW. 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. 364 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 DL 2222
For a booking, read DL 2222 as 80.7% on time with 1.92% cancelled over 364 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- BOS to DTW, every carrier and departure
- DTW to BOS, the return direction
- Delta Air Lines 1748 on the same route86.9%
- Delta Air Lines 1019 on the same route94.1%
- Delta Air Lines 1432 on the same route68.6%
- Boston Logan International (BOS) delay statistics
- Detroit Metropolitan Wayne County (DTW) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means Delta Air Lines’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.