🇺🇸 STL
St Louis
1045 mi
BOS 🇺🇸
Boston

St Louis to Boston Flights

St. Louis Lambert International Airport Logan International Airport 3 airlines

Get Notified About Route Changes

Track up to 3 airports free. Weekly alerts when airlines add or remove routes.

Sign Up Free

The St Louis to Boston route connects St. Louis Lambert International Airport (STL) in US with Logan International Airport (BOS) in US. This medium-haul flight covers approximately 1045 miles (1682 km) with a typical flight time of 2h 23m. This route is served by 3 airlines: Southwest, Envoy Air, RPA. AirportRoutes has tracked 14 unique flight numbers on this route.

Search tickets for this route

Compare flight prices across hundreds of booking sites

Search STL → BOS flights

Opens a live price search — just pick your dates

Departure Airport

St. Louis Lambert International Airport

ICAO Code:
KSTL
IATA Code:
STL
City:
🇺🇸 St Louis
Country:
US
Elevation:
618 ft

Destination Airport

Logan International Airport

ICAO Code:
KBOS
IATA Code:
BOS
City:
🇺🇸 Boston
Country:
US
Elevation:
20 ft

3

Operators

14

Tracked Flights

1045

Miles

2h 23m

Flight Duration

Route Map

Operating Airlines

Airline ICAO IATA
Southwest SWA WN
Envoy Air ENY MQ
Republic RPA YX

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 3 7%
Tuesday 12 27%
Wednesday 0 0%
Thursday 10 22%
Friday 7 16%
Saturday 5 11%
Sunday 8 18%

Pattern Analysis

14 Tracked Flights:
Data Points: 45
API observations used to build this analysis
Weekdays: 32 flights
Weekend: 13 flights
Business Route More active on weekdays

All Flight Routes

3 Routes
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
Envoy Air
ENY / MQ
E75L 11:45 11:45 AM (Representative)
M T W T F S S
Jul 14, 2026 Active
Republic
RPA / YX
E75L 11:45 11:45 AM (Representative)
M T W T F S S
Jul 14, 2026 Active
Southwest
SWA / WN
B38M 14:30 2:30 PM (Representative)
M T W T F S S
Jul 14, 2026 Active
Total Routes: 3
Active Routes: 3
Unique Airlines: 3
Aircraft Types: 3

Spotted Departure Times

Departure Time Operator ICAO IATA
11:45 11:45 AM Envoy Air ENY MQ
11:45 11:45 AM Republic RPA YX
14:30 2:30 PM Southwest SWA WN

Time Information

Times are shown in the departure airport's local timezone (KSTL - America/Chicago).

Total Departure Times: 3
Time Range:
11:45 - 14:30
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.