Carrier route record

OOMSP→IAD

SkyWest Airlines · Minneapolis to Washington

Flights: 849
Period: September 2025 to August 2026
Share of route: 83%
Carriers: 4

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

SkyWest on MSP to IAD 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 about an hour on average. That rests on 849 flights, with a median arrival 8 minutes early.

The US average over the same twelve months is 77.3%, so there is little to separate SkyWest on MSP to IAD from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

80.3%

Arrivals under 15 minutes late, of 837 completed flights

Avg delay

68 min

Across delayed arrivals only, not all flights

Cancelled

1.06%

National rate is 1.89%

Whole route

82.2%

Every carrier on MSP to IAD, 1,024 flights

These figures cover 849 flights between September 2025 and August 2026. The median arrival is 8 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.

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Carrier by carrier

SkyWest against every carrier on MSP to IAD

SkyWest flew 849 of the 1,024 flights on MSP to IAD, most of the route. Its 80.3% on time is 2 points worse than the route as a whole, which runs 82.2%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from Delta at 100.0% to SkyWest at 80.3%. Three of those carriers flew fewer than 365 flights here, so treat their positions as rough.

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 MSP to IAD
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Linesthin sample	2	100.0%	—	0.00%	A+
United Airlinesthin sample	64	92.2%	37 min	0.00%	A+
Republic Airwaysthin sample	109	91.1%	218 min	6.42%	A−
SkyWest Airlines (this page)	849	80.3%	68 min	1.06%	B

Flight by flight

SkyWest flight numbers on MSP to IAD

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Departure window

When SkyWest runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 849 flights.

5am–8am145 flights82.6%
8am–11am193 flights84.7%
11am–2pm1 flights—
2pm–5pm191 flights76.5%
5pm–8pm4 flights—
8pm–5am315 flights78.5%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

Book the morning departure. Flights leaving between 8am–11am arrive on time 84.7% of the time, against 76.5% for the afternoon window. That is 8 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8pm–5am window is the busiest, with 315 flights scheduled in it.

Across the year

SkyWest on MSP to IAD through the year

Darker means more delays. Figures are on-time percentages.September best, December worst

December is the weak month at 64.5% on time, against 94.9% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. July was the busiest month here, with 89 flights.

Across the week, Saturday is the strongest day at 86.0% on time and Tuesday the weakest at 76.0%, a spread of 10 points.

Arrival by arrival

How late SkyWest on MSP to IAD runs when it is late

SkyWest on MSP to IAD often beats the schedule: 282 of 837 completed flights, 34%, arrived 15 minutes or more early. The 165 late arrivals split 54 under half an hour, 57 between 30 and 60 minutes, and 54 an hour or more.

15+ min early282 flights33.7%
Within 15 min390 flights46.6%
15–29 min late54 flights6.5%
30–59 min late57 flights6.8%
1–2 hours late39 flights4.7%
2+ hours late15 flights1.8%

Scale runs 0% to 100%.

Share of 837 completed flights by arrival against schedule.

29 of 148 late departures made up the time and arrived on time, 20% of them. In the other direction, 46 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at IAD.

The worst days

Worst days for SkyWest on MSP to IAD

The latest arrival of the period was on 22 January 2026, 15 hours 13 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in May 2026.

The latest arrivals of SkyWest on MSP to IAD in the period
Date	Arrived late by	Largest filed cause
22 January 2026	15 hours 13 minutes	Carrier
19 May 2026	11 hours 4 minutes	Carrier
9 April 2026	10 hours 56 minutes	Carrier
23 May 2026	3 hours 52 minutes	Carrier
19 May 2026	3 hours 44 minutes	Carrier

Delay causes

Why SkyWest runs late on this route

Carrier accounts for 68% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
68%
Extreme weather
17%
National Airspace System
14%
Security
1%

Extreme weather accounts for 17% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.7 times the usual weather exposure. The split is drawn from 11,134 reported delay minutes.

The largest share of delay minutes, 68%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 7,617 of the 11,000 delay minutes reported here.

Cancellations sit at 1.06% against a national 1.89%, which is ordinary. Diversions add another 0.35%.

Connections and stage length

What a delay here costs

6.5% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

The 907 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.

The return leg is a different operation and performs like one: it runs 85.8% on time across 851 flights, 6 points above 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 6 points of difference.

One caution: this is a thin sample. 849 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 MSP to IAD

Put together: treat all of this as provisional. 849 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 80.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 837 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures