ON TIMEBOARD

ORF → MDW on time

Norfolk (Norfolk, VA) to Chicago Midway (Chicago, IL). Every scheduled flight, September 2025 to August 2026.

On time
73%
arrived < 15 min late
Cancelled
1.6%
581 flights
Typical arrival
−3 min
median vs schedule
When late
+57 min
average delay
Flights / day
2
1 airline

73% of flights from Norfolk to Chicago arrived on time over the past 12 months. That is worse than the typical U.S. route. 8% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for ORF → MDW: when a flight was late, it was under 45 minutes late 64% of the time. About 1 in 18 flights landed an hour or more late, and 1 in 53 three hours or more; 1.5% were cancelled outright.

Share of all 581 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Southwest Airlines58173%1.6%−3 min5.7%+57 minSouthwest Airlines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at ORF). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%5 a.m. departures: too few flights (95 flights)5a6 a.m. departures: too few flights (18 flights)6a7 a.m. departures: too few flights (56 flights)7a8 a.m. departures: too few flights (70 flights)8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights (25 flights)11anoon departures: too few flights (5 flights)12p1 p.m. departures: too few flights (8 flights)1p2 p.m. departures: too few flights (1 flights)2p3 p.m. departures: too few flights (37 flights)3p4 p.m. departures: too few flights (4 flights)4p5 p.m. departures: too few flights (56 flights)5p6 p.m. departures: too few flights (93 flights)6p7 p.m. departures: too few flights (90 flights)7p8 p.m. departures: too few flights (23 flights)8p
ORF → MDW, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On ORF → MDW, each airline's last flight of the day was cancelled 1.9% of the time, against 0.9% for its earlier flights (2.1× as often). It arrived 3+ hours late 4.3% of the time (earlier flights: 0.9%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
Southwest Airlines7:00 p.m.1.9%4.3%0.9%first flight 8:00 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in MDW tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: October (89%). Worst: July (67%).

40%70%100%Jan: too few flights (85 flights)JanFeb: too few flights (74 flights)FebMar: 73% on time (108 flights)73MarApr: 88% on time (118 flights)88AprMay: 82% on time (123 flights)82MayJun: 70% on time (226 flights)70JunJul: 67% on time (245 flights)67JulAug: 73% on time (188 flights)73AugSep: 80% on time (175 flights)80SepOct: 89% on time (174 flights)89OctNov: 86% on time (108 flights)86NovDec: 76% on time (123 flights)76Dec

By day of week

DayFlightsOn timeCancelled
Monday87——
Tuesday84——
Wednesday82——
Thursday83——
Friday86——
Saturday73——
Sunday86——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Late inbound plane 52%Airline (crew, maintenance, ops) 25%Air traffic & airport (NAS) 20%Severe weather 2%

Cancellations: weather 7 · airline 1 · air traffic/airport 1

Month by month

Not enough months with data to draw a trend.

Worst days in the past year

DateFlightsOn timeCancelled
Jul 10, 202630%0
Jun 17, 202630%0
Jun 15, 202630%0
Jul 21, 202630%0
Aug 1, 202630%0

Nearby airport alternatives

Other ways to make the same trip, using airports within 60 miles of Norfolk or Chicago. None has been clearly more reliable than ORF → MDW.

RouteFlightsOn timeCancelled
ORF → MDW (this route)58173%1.6%
ORF → ORD Norfolk to Chicago O'Hare1,95974%2.3%

Questions

How often are flights from ORF to MDW on time?

73% of 581 scheduled flights from Norfolk, VA to Chicago, IL arrived within 15 minutes of schedule between September 2025 and August 2026. 1.6% were cancelled.

What month has the most delays from ORF to MDW?

July (67% on time). The best month is October (89%), over 2023–2026.

Is the last flight of the day from ORF to MDW more likely to be cancelled?

Yes. Each airline's last ORF–MDW flight of the day was cancelled 1.9% of the time over the past year, against 0.9% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.