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DelayAtlas

Carrier route record

OOSFO→RDM

SkyWest Airlines · San Francisco to Redmond

Flights
654
Period
September 2025 to August 2026
Share of route
50%
Carriers
2
CGRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.

SkyWest on SFO to RDM sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 654 flights, with a median arrival 3 minutes early.

The national on-time rate over the same period is 77.3%, so SkyWest on SFO to RDM runs 9 points behind the country as a whole. Across a thousand flights that is about 85 extra late arrivals.

Key figures

On time

68.8%

Arrivals under 15 minutes late, of 644 completed flights

Avg delay

65 min

Across delayed arrivals only, not all flights

Cancelled

1.38%

National rate is 1.89%

Whole route

74.6%

Every carrier on SFO to RDM, 1,310 flights

These figures cover 654 flights between September 2025 and August 2026. Beyond the headline rate, 11.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

SkyWest against every carrier on SFO to RDM

SkyWest flew 654 of the 1,310 flights on SFO to RDM, about 50% of it. Its 68.8% on time is 6 points worse than the route as a whole, which runs 74.6%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 80.3% to SkyWest at 68.8%.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on SFO to RDM
AirlineFlightsOn timeAvg delayCancelledGrade
United Airlines65680.3%63 min0.61%B+
SkyWest Airlines (this page)65468.8%65 min1.38%C

Flight by flight

SkyWest flight numbers on SFO to RDM

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Departure window

When SkyWest runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 29 points, against half a point between the best and worst carrier.

  • 5am–8am—
  • 8am–11am—
  • 11am–2pm160 flights76.7%
  • 2pm–5pm267 flights73.8%
  • 5pm–8pm143 flights47.9%
  • 8pm–5am84 flights73.5%

Scale runs 40% to 80%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 47.9% on time, against 76.7% for the 11am–2pm slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 267 flights scheduled in it.

Across the year

SkyWest on SFO to RDM through the year

On-time rate by calendar month77J—F76M71A62M55J56J53A81S79O83N71D
Darker means more delays. Figures are on-time percentages.November best, August worst

August is the worst month at 53.4% on time, 29 points below November, the best at 82.5%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. July was the busiest month here, with 78 flights.

Across the week, Saturday is the strongest day at 80.8% on time and Thursday the weakest at 63.7%, a spread of 17 points.

On-time rate by day of the week67.0Mon65.4Tue75.9Wed63.7Thu65.0Fri80.8Sat67.6Sun
Monday: 67.0 percent on time. Tuesday: 65.4 percent on time. Wednesday: 75.9 percent on time. Thursday: 63.7 percent on time. Friday: 65.0 percent on time. Saturday: 80.8 percent on time. Sunday: 67.6 percent on time

Arrival by arrival

How late SkyWest on SFO to RDM runs when it is late

The 201 late arrivals split 65 under half an hour, 64 between 30 and 60 minutes, and 72 an hour or more.

  • 15+ min early129 flights20.0%
  • Within 15 min314 flights48.8%
  • 15–29 min late65 flights10.1%
  • 30–59 min late64 flights9.9%
  • 1–2 hours late46 flights7.1%
  • 2+ hours late26 flights4.0%

Scale runs 0% to 100%.

Share of 644 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 193 departures that left 15 minutes late or more, only 15 made it up before arrival. 23 flights left on time and still arrived late.

The worst days

Worst days for SkyWest on SFO to RDM

The latest arrival of the period was on 23 December 2025, 14 hours 5 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. Three of the five worst days fell in December 2025.

The latest arrivals of SkyWest on SFO to RDM in the period
DateArrived late byLargest filed cause
23 December 202514 hours 5 minutesNational Airspace System
27 December 20255 hours 11 minutesCarrier
21 December 20253 hours 41 minutesExtreme weather
20 July 20263 hours 41 minutesLate-arriving aircraft
27 February 20263 hours 32 minutesCarrier

Delay causes

Why SkyWest runs late on this route

National Airspace System accounts for 42% of the 13,000 delay minutes carriers reported here, and the remaining four split what is left.

  • National Airspace System
    42%
  • Late-arriving aircraft
    32%
  • Carrier
    22%
  • Extreme weather
    4%

42% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 5,511 minutes out of 13,000, against a national NAS share of 21%. The split is drawn from 12,973 reported delay minutes.

Cancellations sit at 1.38% against a national 1.89%, which is ordinary. Diversions add another 0.15%.

Connections and stage length

What a delay here costs

11.2% 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.

At 462 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 11am–2pm window matters as much as it does.

The return leg is a different operation and performs like one: it runs 60.3% on time across 655 flights, 9 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 9 points of difference.

One caution: this is a thin sample. 654 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 SkyWest on SFO to RDM

Put together: treat all of this as provisional. 654 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 68.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 644 completed flights over 12 months sit behind that.

Related

Where to go next

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.