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DelayAtlas

Airport month record

SFOFEB

San Francisco International in February 2026

Departures
10,316
Month
February 2026
National, same month
80.2%
Carriers
8
BGRADE

Historical statistics for February 2026, not live status or a forecast for this year’s February. For today’s conditions at SFO, see live FAA status.

SFO in February lands a B, 2 points better than the national rate of 80.2%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 10,316 flights, of which Alaska Airlines flew 676 at 88.3% on time.

Alaska Airlines is the most reliable of the six carriers covered here at 88.3% on time across 676 flights.

Key figures

On time

81.7%

Arrivals under 15 minutes late, of 10,165 completed departures

Avg delay

77 min

Across delayed arrivals only, not all flights

Cancelled

1.21%

Nationally in February: 2.25%

Whole year

77.3%

SFO across all twelve months

These figures cover 10,316 departures from San Francisco International in February 2026. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.

Against the year

February next to SFO's other months

Against SFO's own year, February ran 4 points better than the twelve-month rate of 77.3%, which makes it number four of twelve months, best first. Either side of it, January ran 82.5% on time and March 84.0%, so this month sits in line with its neighbours.

SFO month by month
MonthFlightsOn timeAvg delayCancelledGrade
July 202512,95873.9%67 min1.14%C
August 202512,59479.6%66 min0.64%B+
September 202511,83082.4%58 min0.25%B+
October 202512,77480.1%61 min0.36%B+
November 202512,02278.6%66 min1.86%B
December 202511,97576.3%81 min1.07%B
January 202611,11382.5%85 min2.43%B
February 2026 (this page)10,31681.7%77 min1.21%B
March 202612,17184.0%72 min1.02%B
April 202612,40174.7%63 min0.70%C+
May 202613,11470.1%64 min0.79%C+
June 202613,41567.1%67 min0.70%C+

Departure window

The best time of day to leave SFO in February

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 17 points, against 20 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am1,179 flights93.1%
  • 8am–11am2,322 flights83.8%
  • 11am–2pm2,109 flights76.3%
  • 2pm–5pm1,560 flights77.2%
  • 5pm–8pm1,360 flights78.5%
  • 8pm–5am1,786 flights84.2%

Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.

The weak window here is the middle of the day, not the evening: 11am–2pm runs 76.3% on time against 93.1% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 8am–11am window is the busiest, with 2,322 flights scheduled in it.

Across the week, Friday is the strongest day at 88.6% on time and Wednesday the weakest at 77.6%. 11 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week83.1Mon80.5Tue77.6Wed78.6Thu88.6Fri84.2Sat78.9Sun
Monday: 83.1 percent on time. Tuesday: 80.5 percent on time. Wednesday: 77.6 percent on time. Thursday: 78.6 percent on time. Friday: 88.6 percent on time. Saturday: 84.2 percent on time. Sunday: 78.9 percent on time

Carrier by carrier

Which airlines ran best at SFO in February

The choice of carrier is not cosmetic here. Alaska Airlines arrives on time 88.3% of the time; Southwest Airlines manages 68.6%. Sample sizes sit next to every figure, because a two-point gap across 684 flights means less than a ten-point one.

Carriers at SFO in February 2026
AirlineFlightsOn timeAvg delayCancelledGrade
United Airlines4,21384.4%63 min0.81%B+
SkyWest Airlines2,44377.1%89 min0.90%B+
Delta Air Lines96685.1%67 min2.28%A
American Airlines82684.6%143 min1.94%B
Southwest Airlines68468.6%58 min0.58%C+
Alaska Airlines67688.3%51 min1.48%A
JetBlue Airwaysthin sample31282.0%101 min5.45%B−
Frontier Airlinesthin sample19676.5%78 min0.00%B+

The spread between Alaska and Southwest is 20 points, wide enough that it should decide the booking. On a hundred trips that is 20 more arrivals inside the on-time window.

Route by route

Busiest routes out of SFO in February

Routes from SFO in February 2026
RouteFlightsOn timeAvg delayCancelledGrade
SFO to LAX · Los Angeles73977.4%57 min0.81%B+
SFO to SEA · Seattle48186.4%63 min0.83%A+
SFO to JFK · New York46585.3%106 min7.53%A−
SFO to LAS · Las Vegas44581.1%61 min0.00%B+
SFO to SAN · San Diego44272.5%54 min0.90%C+
SFO to DEN · Denver39882.6%76 min0.25%B+
SFO to PHX · Phoenixthin sample36181.3%60 min0.28%B+
SFO to ORD · Chicagothin sample35785.2%88 min0.00%A+
SFO to SNA · Santa Anathin sample31984.5%87 min0.31%B+
SFO to EWR · Newarkthin sample29780.4%71 min7.07%B−
SFO to DFW · Dallas-Fort Worththin sample29182.4%112 min0.34%B+
SFO to SLC · Salt Lake Citythin sample28577.8%64 min0.35%B+
SFO to BOS · Bostonthin sample28384.6%124 min8.13%B−
SFO to IAH · Houstonthin sample27787.0%71 min0.00%A+
SFO to PDX · Portlandthin sample25484.6%68 min0.00%B+
SFO to ATL · Atlantathin sample21989.0%59 min0.00%A+
SFO to BUR · Burbankthin sample21681.7%65 min0.93%B+
SFO to PSP · Palm Springsthin sample20480.7%89 min0.49%B+
SFO to IAD · Washingtonthin sample18992.1%71 min0.00%A+
SFO to AUS · Austinthin sample18275.8%69 min0.00%B+
SFO to RNO · Renothin sample16877.6%71 min1.79%B
SFO to HNL · Honoluluthin sample16382.8%65 min0.00%B+
SFO to MIA · Miamithin sample13783.2%172 min0.00%B+
SFO to BOI · Boisethin sample13181.7%105 min0.00%B+
SFO to MSP · Minneapolisthin sample12889.0%50 min0.00%A+

Delay causes

What held SFO up in February

One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 142,000 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.

  • Late-arriving aircraft
    44%
  • Carrier
    34%
  • National Airspace System
    17%
  • Extreme weather
    6%
  • Security
    0%

44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 142,000 reported delay minutes here, that single category outweighs weather by 8 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 142,155 reported delay minutes.

Cancellations sit at 1.21% against a national 2.25%, which is ordinary. Diversions add another 0.25%.

6.7% of arrivals land an hour or more late, close to the national 6.5%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

What to do with this

Flying from SFO in February

For a February trip through SFO: expect 81.7% on time and 1.21% cancelled, going by February 2026. The 5am–8am window was the strongest part of the day.

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.