What type of aircraft is N166SY?

N166SY is a Embraer S A ERJ 170-200 LR with 88 seats, according to the FAA aircraft register.

Which airline flies N166SY?

SkyWest Airlines (OO) flew N166SY most recently, according to US Department of Transportation flight records for July 2026.

Where does N166SY fly?

Its most frequent route in the last 12 months was San Francisco to Santa Ana (9 flights). It flew 1,500 flights in total, about 125 a month.

N166SY was built in 2016, so it is 10 years old.

Is N166SY usually on time?

78% of its flights from August 2025 to July 2026 arrived within 15 minutes of schedule. Punctuality depends far more on the route and the airline's day than on the aircraft itself.

US aircraft · OO

N166SY

Embraer S A ERJ 170-200 LR, SkyWest Airlines

N166SY is a Embraer S A ERJ 170-200 LR flown by SkyWest Airlines, built in 2016. From August 2025 to July 2026 it flew 1,500 flights, most often San Francisco to Santa Ana, and 78% arrived within 15 minutes of schedule.

1,500

flights in 12 months

78%

on time (within 15 min)

airports

10 yr

age

August 2025 to July 2026. Flights from US Bureau of Transportation Statistics on-time records (public domain); aircraft details from the FAA aircraft register.

Where N166SY flies

San Francisco to Santa AnaSFO to SNA9 flights
Santa Ana to San FranciscoSNA to SFO9 flights
Memphis to HoustonMEM to IAH9 flights
Memphis to ChicagoMEM to ORD8 flights
Oklahoma City to HoustonOKC to IAH8 flights
Tulsa to DenverTUL to DEN7 flights
Chicago to MemphisORD to MEM7 flights
Chicago to DetroitORD to DTW6 flights
Denver to WichitaDEN to ICT6 flights
Denver to Des MoinesDEN to DSM5 flights

Its most frequent routes over the period. Each links to that route's punctuality page.

Month by month

Share of N166SY flights arriving within 15 minutes of schedule, by month. Green is the best month, orange the worst.

See the figures

Month	On time	Cancelled	Flights
August 2025	76%	1.4%	138
September 2025	77%	0%	132
October 2025	88%	0%	153
November 2025	75%	1.8%	113
December 2025	58%	4.2%	118
January 2026	83%	10.7%	84
February 2026	90%	0%	118
March 2026	82%	0.8%	126
April 2026	81%	0.8%	120
May 2026	72%	2.9%	138
June 2026	75%	2.4%	126
July 2026	80%	3.7%	134

Questions and answers

What type of aircraft is N166SY?: N166SY is a Embraer S A ERJ 170-200 LR with 88 seats, according to the FAA aircraft register.
Which airline flies N166SY?: SkyWest Airlines (OO) flew N166SY most recently, according to US Department of Transportation flight records for July 2026.
Where does N166SY fly?: Its most frequent route in the last 12 months was San Francisco to Santa Ana (9 flights). It flew 1,500 flights in total, about 125 a month.
How old is N166SY?: N166SY was built in 2016, so it is 10 years old.
Is N166SY usually on time?: 78% of its flights from August 2025 to July 2026 arrived within 15 minutes of schedule. Punctuality depends far more on the route and the airline's day than on the aircraft itself.

See how SkyWest Airlines compares with every other US airline.

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