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Thanksgiving & Christmas Flight Delays at SJC: Mineta San Jose International Airport

Over the last four Thanksgiving travel weeks (2022–2025, Tuesday before through Sunday after), 12.0% of flights that left Mineta San Jose International Airport (San Jose, CA) arrived at least 15 minutes late and 0.1% were cancelled. In the rest of November the same airport had 13.6% late and 0.7% cancelled, so Thanksgiving week had 1.6 points fewer late arrivals. The best day was Fri after (8.0% late); the worst was Sun after (18.7% late).

12.0%late arrivals, Thanksgiving week

0.1%cancelled, Thanksgiving week

22.4%late arrivals, Dec 20–31

8.1%cancelled, Dec 20–31

Which day of Thanksgiving week is best at SJC?

Day	Flights (4 yrs)	Late (15+ min)	Cancelled	Avg dep. delay (min)
Tue before	598	9.9%	0.2%	5.6
Wed before	599	8.3%	0.0%	5.3
Thanksgiving Day	391	10.8%	0.0%	6.7
Fri after	551	8.0%	0.2%	5.9
Sat after	528	15.6%	0.2%	10.8
Sun after	633	18.7%	0.0%	11.7

Pooled over 2022–2025. Thanksgiving 2026 is Thursday, Nov 26, so the window is Tue Nov 24 – Sun Nov 29. Individual days have fewer flights, so small differences are noise.

Year by year at SJC

Year	Thanksgiving week late	Thanksgiving week cancelled	Rest of Nov. late	Dec 20–31 late	Dec 20–31 cancelled
2022	12.1%	0.1%	14.9%	32.4%	28.0%
2023	10.4%	0.0%	10.5%	15.4%	0.2%
2024	10.2%	0.0%	12.0%	21.0%	1.4%
2025	15.7%	0.3%	17.4%	23.6%	0.9%

Single years can be dominated by one storm or airline meltdown; look at the range, not just the average. Dec 20–31, 2022 includes the late-December 2022 winter storm and airline disruptions nationwide.

Christmas week (Dec 20–31) at SJC

Across 2022–2025, 22.4% of flights from SJC arrived 15+ minutes late and 8.1% were cancelled during Dec 20–31, compared with 14.1% late and 0.7% cancelled from Dec 1–19 (+8.3 pts late arrivals).

Airlines at SJC, Thanksgiving week

Airline (flights it operated)	Flights (4 yrs)	Late	Cancelled	Dec 20–31 late
Southwest	2,000	12.6%	0.1%	25.4%
SkyWest *	547	10.8%	0.0%	18.6%

* Regional airline that mostly flies under another airline’s brand (for example American Eagle, Delta Connection, United Express), so the ticket you bought may not match the operator. Airlines with fewer than 200 flights in the window are omitted.

Why flights from SJC were late (Thanksgiving week)

Cause category (BTS)	Share of delay minutes
Airline (crew, maintenance, cleaning…)	40.3%
Extreme weather	4.3%
National Aviation System (air traffic, volume)	17.0%
Security	0.4%
Late-arriving aircraft	38.0%

Share of reported delay minutes on flights that arrived 15+ minutes late. “Extreme weather” is only a narrow category; many weather-related delays are counted under National Aviation System or late-arriving aircraft. Categories are assigned by airlines to BTS rules.

Other airports nearby

Source: BTS Airline On-Time Performance data, flights departing SJC operated by airlines that report to BTS. “Late” = arrived 15 or more minutes after schedule (the DOT definition), counted among flights that were not cancelled or diverted. Computed by Holiday Delay Odds; see methodology.