Flight profile · Delta Air Lines
DL354
Raleigh–Durham (RDU) to Seattle (SEA) · scheduled 7:11 AM – 9:25 AM
How DL354 performs
618 operations, June 2024 – August 2026.
Between its first and last recorded date on RDU → SEA, DL354 averaged about 5 operations a week (618 in 816 days, cancelled ones included).
DL354 arrived on time 87.8% of the time, against 79.7% for all RDU → SEA flights, so this departure is 8.1 percentage points better than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 618 operations, June 2024 – August 2026 · If DL354 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where DL354 is right now
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| DL354 | 87.8% | 0.97% | -10 min | 3.1% | 618 |
| Delta Air Lines on RDU → SEA | 87.6% | 0.61% | -12 min | 3.3% | 1,155 |
| All RDU → SEA flights | 79.7% | 0.97% | -6 min | 4.7% | 2,875 |
DL354 cancelled 6 of 618 operations (0.97%), close to the 0.97% for RDU → SEA.
3.1% of DL354’s arrivals were an hour or more late, against 4.7% across RDU → SEA, so the long delays are less common on this number than on the route.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – August 2026
Why DL354 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for DL354 on RDU → SEA. Only delays of 15 minutes or more are attributed. What the five causes mean
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – August 2026
Does a late aircraft delay this flight?
How often the plane that flies DL354 comes in late, and what that does to the departure.
DL354 is usually the aircraft’s first flight of the day: the schedule gives it a median of 7.2 hours on the ground at RDU, so its “inbound” is mostly the aircraft’s arrival the evening before.
The aircraft flying DL354 came in 15 or more minutes late on 19% of the departures where its previous flight is known. There are not enough departures in both groups to say how the flight left after a late one and after an on-time one.
Matched by tail number to the aircraft’s previous flight into RDU: 577 of 612 departures. Unknown, cancelled or diverted inbounds and gaps over 12 hours are left out.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late |
|---|---|
| DL354 | 19% |
| Network, same turn | 29% |
A night on the ground absorbs most of a late arrival, so a late inbound matters far less here than on a same-day turn.
The network row is every flight with a scheduled turn of 6 hours or more, usually overnight. How often DL354’s aircraft landed 15 or more minutes late is lower than the network’s. There are not enough departures in both groups to compare how it left.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – August 2026
From pushback to gate
When it leaves RDU late, does that still matter by the time it reaches SEA?
DL354 pushes back an average of 3.8 minutes late and reaches the gate at SEA an average of 4.3 minutes early. The 8.2 minutes between those two figures are slack the published schedule already carries, so on average a late pushback on this flight is made up before the gate. It spends 16.2 minutes on the taxiways at RDU, 2.1 minutes shorter than a typical RDU departure in the same hour.
On arrival at SEA, DL354 spends 12.4 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is about what any arrival at SEA spends on the ground before reaching the gate.
Taxi-out is gate to wheels up and sits inside the scheduled block; the hourly comparison is 17,071 RDU departures. Taxi-in is landing to gate, set against 526,096 arrivals at SEA. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – August 2026
The hour it leaves RDU
DL354 has one departure time, 7:11 AM, so this is what that hour at RDU is worth.
On-time arrival rate. 17,071 departures from RDU are scheduled in the 7 AM–8 AM hour over the period, against 184,584 across the whole day.
DL354 is scheduled out of RDU at 7:11 AM, in the 7 AM–8 AM bank. Departures from RDU in that hour arrive on time 87.1% of the time against 79.3% across the airport’s whole day — the slot alone is worth 7.7 points better before anything about this particular flight is considered.
Both airport figures cover every destination from RDU, so they describe the slot, not this journey; the route comparison is above. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – August 2026 · Hours below 120 departures are not scored.
Other routes DL354 has flown
Carriers reassign flight numbers. DL354 also served these 13 other city pairs in the period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| ATL→ICT Atlanta to Wichita | December 20, 2025 – January 4, 2026 | 12 | — |
| ICT→ATL Wichita to Atlanta | December 20, 2025 – January 4, 2026 | 12 | — |
| PBI→ATL West Palm Beach to Atlanta | December 24, 2025 – January 1, 2026 | 4 | — |
| SAN→JFK San Diego to New York | January 19, 2025 – March 7, 2025 | 35 | — |
| DCA→ATL Washington to Atlanta | December 19–20, 2024 | 2 | — |
| SFO→JFK San Francisco to New York | November 11, 2024 – December 18, 2024 | 32 | — |
| MSY→SLC New Orleans to Salt Lake City | November 29, 2024 | 1 | — |
| SEA→HNL Seattle to Honolulu | September 9, 2024 – October 1, 2024 | 23 | — |
| LGA→MSP New York to Minneapolis | May 7, 2024 – June 6, 2024 | 27 | — |
| MCO→SEA Orlando to Seattle | April 9, 2024 – May 6, 2024 | 28 | — |
| PHX→JFK Phoenix to New York | March 10, 2024 – April 8, 2024 | 18 | — |
| DTW→LAX Detroit to Los Angeles | January 8, 2024 – March 9, 2024 | 62 | — |
| JFK→SLC New York to Salt Lake City | July 1, 2023 – January 7, 2024 | 191 | 92.6% |
The figures above describe only RDU → SEA, the route DL354 flies now.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
19 min late
against a median of 10 min early
Percentiles over 618 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – August 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL354 this flight | Delta Air Lines | 87.8% | 10 min early | 618 |
| AS572 | Alaska Airlines | 70.0% | 1 min late | 860 |
Among all 2 departures on this route with at least 600 operations, DL354 has the highest on-time rate. Every departure here has at least 600 operations; the other rows are the most punctual on the route, not all of them.
Data and methodology
Calculated by FlyerIntel from 618 records of DL354 operating RDU → SEA, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule; cancelled and diverted flights are reported separately, not in the on-time rate.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
Analysis last recomputed