How long is the YX4678 flight?

The timetable allows 2 h 44 min. St. Louis to Boston is 1,680 km (1,044 mi).

Which terminal does YX4678 use?

It usually leaves from Terminal 1 at St. Louis Lambert International Airport (STL) and arrives at Terminal B at Boston Logan International Airport (BOS). Check the flight card above for today's terminal and gate.

What other flight numbers does YX4678 have?

Also listed as RPA4678 (Republic Airlines' ICAO code) and YX 4678.

YX4678 Flight Status Republic Airlines: St. Louis to Boston (RPA4678)

YX 4678 St. Louis to Boston Flight Status

Not scheduled today. Latest flight: September 8th, 2026 ; recent history is in the table below.

YX 4678 Flight Status & Schedule Republic Airlines St. Louis to Boston

Date	From	To	Departure	Arrival	Status	Details
Sep 08	STL	BOS	20:00	23:44	Scheduled	Track >
Sep 07	STL	BOS	20:00	23:44	Scheduled	Track >
Sep 06	STL	BOS	20:00	23:44	Delayed	Track >
Sep 05	STL	BOS	19:38	23:22	Scheduled	Track >
Sep 04	STL	BOS	20:00	23:44	Scheduled	Track >
Sep 02	STL	BOS	20:00	23:44	Delayed	Track >
Sep 01	STL	BOS	20:00	23:44	Scheduled	Track >
Aug 31	STL	BOS	20:00	23:44	Scheduled	Track >
Aug 30	STL	BOS	20:00	23:44	Scheduled	Track >
Aug 28	STL	BOS	20:00	23:44	Scheduled	Track >

Republic Airlines operates YX 4678 from St. Louis to Boston, a 1,680 km (1,044 mi) trip. The timetable allows 2 h 44 min; there is not enough recent history yet to say how long it usually takes. It is not flying today; the last flight was scheduled on 8 September 2026.

< All St. Louis STL Departures All Boston BOS Arrivals >

About YX 4678

Route: St. Louis Lambert International Airport STL to Boston Logan International Airport BOS
Distance: 1,680 km (1,044 mi)
Scheduled flight time: 2 h 44 min
Usually departs from: Terminal 1

YX 4678 FAQ

How long is the YX4678 flight?: The timetable allows 2 h 44 min. St. Louis to Boston is 1,680 km (1,044 mi).
Which terminal does YX4678 use?: It usually leaves from Terminal 1 at St. Louis Lambert International Airport (STL) and arrives at Terminal B at Boston Logan International Airport (BOS). Check the flight card above for today's terminal and gate.
What other flight numbers does YX4678 have?: Also listed as RPA4678 (Republic Airlines' ICAO code) and YX 4678.

Republic Airlines YX4678 News

Report YX4678 - Republic E170 near Minneapolis on Jul 19th 2017, turbulence injures 4

YX4678 and St. Louis STL to Boston BOS Flights

Flight YX4678 is code-shared by 1 airline using the flight number BA6891

Other flights departing from St. Louis STL: MQ3570, WN1589, WN2151, WN3843

Other flights arriving at Boston BOS: B6396, B62924, B6506, MQ3868

All flights connecting St. Louis STL to Boston BOS.