What type of aircraft is N503SY?

N503SY is a Yabora Industria Aeronautica S ERJ 170-200 LR with 88 seats, according to the FAA aircraft register.

Which airline flies N503SY?

SkyWest Airlines (OO) flew N503SY most recently, according to US Department of Transportation flight records for July 2026.

Where does N503SY fly?

Its most frequent route in the last 12 months was San Francisco to Los Angeles (75 flights). It flew 1,592 flights in total, about 133 a month.

N503SY was built in 2021, so it is 5 years old.

Is N503SY usually on time?

85% 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

N503SY

Yabora Industria Aeronautica S ERJ 170-200 LR, SkyWest Airlines

N503SY is a Yabora Industria Aeronautica S ERJ 170-200 LR flown by SkyWest Airlines, built in 2021. From August 2025 to July 2026 it flew 1,592 flights, most often San Francisco to Los Angeles, and 85% arrived within 15 minutes of schedule.

1,592

flights in 12 months

85%

on time (within 15 min)

airports

5 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 N503SY flies

San Francisco to Los AngelesSFO to LAX75 flights
Los Angeles to San FranciscoLAX to SFO66 flights
Los Angeles to AustinLAX to AUS24 flights
Austin to Los AngelesAUS to LAX24 flights
Los Angeles to San AntonioLAX to SAT22 flights
San Antonio to Los AngelesSAT to LAX20 flights
Grand Junction to PhoenixGJT to PHX19 flights
Phoenix to Grand JunctionPHX to GJT18 flights
Phoenix to BoisePHX to BOI18 flights
Boise to PhoenixBOI to PHX18 flights

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

Month by month

Share of N503SY 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	87%	0.7%	140
September 2025	89%	0%	132
October 2025	88%	0%	137
November 2025	88%	2.4%	127
December 2025	87%	0%	127
January 2026	76%	2.2%	89
February 2026	86%	0%	128
March 2026	86%	2.1%	140
April 2026	85%	1.4%	141
May 2026	88%	1.4%	138
June 2026	83%	0%	144
July 2026	74%	0%	149

Questions and answers

What type of aircraft is N503SY?: N503SY is a Yabora Industria Aeronautica S ERJ 170-200 LR with 88 seats, according to the FAA aircraft register.
Which airline flies N503SY?: SkyWest Airlines (OO) flew N503SY most recently, according to US Department of Transportation flight records for July 2026.
Where does N503SY fly?: Its most frequent route in the last 12 months was San Francisco to Los Angeles (75 flights). It flew 1,592 flights in total, about 133 a month.
How old is N503SY?: N503SY was built in 2021, so it is 5 years old.
Is N503SY usually on time?: 85% 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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