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DelayAtlas

Flight number record

AS 298

Alaska Airlines · Seattle to Newark

Route
SEA → EWR
Departs
06:41
Flights
303
Period
July 2025 to June 2026
A−GRADE

Historical statistics for July 2025 to June 2026, not live status. For today’s AS 298, check with Alaska Airlines.

AS 298 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 11 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 303 flights, with a median arrival 20 minutes early.

Set against the rest of the country, AS 298's record is 11 points better than the US average of 77.6%. That gap is worth roughly 106 fewer late arrivals for every thousand flights.

Key figures

On time

88.2%

Arrivals under 15 minutes late, of 289 completed flights

Avg delay

63 min

Across delayed arrivals only, not all flights

Cancelled

3.96%

National rate is 1.81%

1 hour+ late

4.8%

National rate is 8.1%

These figures cover 303 flights between July 2025 and June 2026. The median arrival is 20 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 AS 298 flies

AS 298 flies SEA to EWR without a single fixed slot. Its most common scheduled departure was 06:41, used on 91 of 303 flights, with 07:00 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

  • Departs 06:4191 flights30.0%
  • Departs 07:0041 flights13.5%

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 06:41 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and AS 298 runs level with that at 88.2%. 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

AS 298 next to SEA to EWR

Every carrier on SEA to EWR combined arrived on time 81.2% of the time across 2,235 flights, so AS 298 is 7 points ahead of it. Alaska flew 1,238 flights on the same city pair under all its flight numbers, including this one, and those ran 81.0% on time. Across its whole network Alaska Airlines managed 79.1%, which this flight beats by 9 points.

AS 298 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
AS 298thin sample30388.2%63 min3.96%A−
All Alaska Airlines on SEA–EWR1,23881.0%54 min2.26%B
All carriers on SEA–EWR2,23581.2%69 min1.74%B
Alaska Airlines, whole network293,37279.1%52 min1.28%B

Across the year

AS 298 quarter by quarter

AS 298 did not run the same all year. Its best quarter was Oct–Dec 2025 at 94.4% on time and its weakest Jul–Sep 2025 at 82.1%, a swing of 12 points on roughly 76 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

  • Jul–Sep 202588 flights82.1%
  • Oct–Dec 202577 flights94.4%
  • Jan–Mar 202668 flights84.4%
  • Apr–Jun 202670 flights92.8%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, AS 298 ranged from 83.3% on Monday to 95.1% on Wednesday. With about 43 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

On-time rate by day of the week83.3Mon90.7Tue95.1Wed84.1Thu91.1FriSat84.8Sun
Monday: 83.3 percent on time. Tuesday: 90.7 percent on time. Wednesday: 95.1 percent on time. Thursday: 84.1 percent on time. Friday: 91.1 percent on time. Saturday: not enough flights. Sunday: 84.8 percent on time

Delay causes

Why AS 298 runs late

One category carries most of the weight here. National Airspace System accounts for 55% of the 2,147 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.

  • National Airspace System
    55%
  • Carrier
    41%
  • Late-arriving aircraft
    2%
  • Security
    1%
  • Extreme weather
    1%

The largest share of delay minutes, 41%, 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 888 of the 2,147 delay minutes reported here. The split is drawn from 2,147 delay minutes reported on AS 298.

Cancellations run at 3.96%, against 1.81% nationally. That is about one flight in 25 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 4.8% 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.

At 2,402 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

The same number turns up on one other city pair in the data, including SEA to CVG (21), but none flew often enough under AS 298 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SEA to EWR only.

One caution: this is a thin sample. 303 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 AS 298

For a booking, the cancellation rate is the figure to plan around on AS 298: 3.96% of its 303 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.

Related

Where to go next

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.