What type of aircraft is N421YX?

N421YX is a Embraer S A ERJ 170-200 LR with 88 seats, according to the FAA aircraft register.

Which airline flies N421YX?

Republic Airways (YX) flew N421YX most recently, according to US Department of Transportation flight records for July 2026.

Where does N421YX fly?

Its most frequent route in the last 12 months was New York to Boston (21 flights). It flew 1,761 flights in total, about 147 a month.

N421YX was built in 2014, so it is 12 years old.

Is N421YX usually on time?

76% 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 · YX

N421YX

Embraer S A ERJ 170-200 LR, Republic Airways

N421YX is a Embraer S A ERJ 170-200 LR flown by Republic Airways, built in 2014. From August 2025 to July 2026 it flew 1,761 flights, most often New York to Boston, and 76% arrived within 15 minutes of schedule.

1,761

flights in 12 months

76%

on time (within 15 min)

airports

12 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 N421YX flies

New York to BostonLGA to BOS21 flights
New York to WashingtonLGA to DCA21 flights
Washington to New YorkDCA to LGA19 flights
Boston to New YorkBOS to JFK16 flights
Boston to New YorkBOS to LGA15 flights
New York to Raleigh-durhamLGA to RDU12 flights
Indianapolis to WashingtonIND to DCA10 flights
Washington to IndianapolisDCA to IND9 flights
Washington to HoustonDCA to IAH8 flights
Houston to WashingtonIAH to DCA8 flights

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

Month by month

Share of N421YX 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	81%	2.2%	134
September 2025	78%	1.4%	138
October 2025	66%	10.3%	39
November 2025	79%	2.6%	153
December 2025	64%	4.5%	178
January 2026	72%	4.6%	151
February 2026	80%	0.7%	153
March 2026	71%	4.8%	147
April 2026	81%	1.3%	153
May 2026	78%	2.2%	180
June 2026	83%	1.8%	171
July 2026	77%	9.1%	164

Questions and answers

What type of aircraft is N421YX?: N421YX is a Embraer S A ERJ 170-200 LR with 88 seats, according to the FAA aircraft register.
Which airline flies N421YX?: Republic Airways (YX) flew N421YX most recently, according to US Department of Transportation flight records for July 2026.
Where does N421YX fly?: Its most frequent route in the last 12 months was New York to Boston (21 flights). It flew 1,761 flights in total, about 147 a month.
How old is N421YX?: N421YX was built in 2014, so it is 12 years old.
Is N421YX usually on time?: 76% 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 Republic Airways compares with every other US airline.

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