What type of aircraft is N173SY?

N173SY is a Embraer S A ERJ 170-200 LR with 88 seats, according to the FAA aircraft register.

Which airline flies N173SY?

SkyWest Airlines (OO) flew N173SY most recently, according to US Department of Transportation flight records for July 2026.

Where does N173SY fly?

Its most frequent route in the last 12 months was San Francisco to Santa Ana (32 flights). It flew 1,780 flights in total, about 148 a month.

N173SY was built in 2015, so it is 11 years old.

Is N173SY 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

N173SY

Embraer S A ERJ 170-200 LR, SkyWest Airlines

N173SY is a Embraer S A ERJ 170-200 LR flown by SkyWest Airlines, built in 2015. From August 2025 to July 2026 it flew 1,780 flights, most often San Francisco to Santa Ana, and 78% arrived within 15 minutes of schedule.

1,780

flights in 12 months

78%

on time (within 15 min)

airports

11 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 N173SY flies

San Francisco to Santa AnaSFO to SNA32 flights
Santa Rosa to San DiegoSTS to SAN24 flights
San Francisco to San DiegoSFO to SAN23 flights
San Diego to San FranciscoSAN to SFO22 flights
Austin to San DiegoAUS to SAN18 flights
San Diego to AustinSAN to AUS18 flights
Santa Ana to San FranciscoSNA to SFO17 flights
San Diego to San JoseSAN to SJC17 flights
San Diego to FresnoSAN to FAT15 flights
Fresno to San DiegoFAT to SAN15 flights

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

Month by month

Share of N173SY 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	79%	0.7%	147
September 2025	73%	0.7%	134
October 2025	80%	0.6%	177
November 2025	79%	5.1%	158
December 2025	75%	9%	144
January 2026	76%	6.7%	149
February 2026	82%	3.1%	129
March 2026	86%	0%	147
April 2026	70%	1.6%	125
May 2026	76%	3.7%	163
June 2026	77%	0.6%	163
July 2026	79%	2.1%	144

Questions and answers

What type of aircraft is N173SY?: N173SY is a Embraer S A ERJ 170-200 LR with 88 seats, according to the FAA aircraft register.
Which airline flies N173SY?: SkyWest Airlines (OO) flew N173SY most recently, according to US Department of Transportation flight records for July 2026.
Where does N173SY fly?: Its most frequent route in the last 12 months was San Francisco to Santa Ana (32 flights). It flew 1,780 flights in total, about 148 a month.
How old is N173SY?: N173SY was built in 2015, so it is 11 years old.
Is N173SY 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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