Southwest Airlines flights from STL to BOS
Find comprehensive Southwest Airlines flight information, schedules, and booking details for direct flights from STL to BOS. Southwest Airlines operates 3-7 flights daily flights on this route.• Flight Duration: 2h 25m - 2h 43m (average flight time)• Distance: 1049 miles (1688 km) (air miles between airports)• Daily Flights: 3-7 flights (scheduled departures per day)
STL
BOS
FLIGHT TIME
2h 25m - 2h 43m
FLIGHT DISTANCE
1049 miles (1688 km)
2h 30m - 2h 35m
07:50
20:40
1049 miles (1688 km)
January
1 (Show)
45
Southwest Airlines Flight Schedule from STL to BOS
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
WN3001 |  Southwest Airlines | 07:50 | 11:25:00 | Boeing 737-700 (winglets) Passenger/BBJ1 |
WN3341 | Southwest Airlines | 15:30 | 19:00:00 | Boeing 737MAX 8 Passenger |
WN2114 | Southwest Airlines | 20:40 | 00:10:00 | Boeing 737MAX 8 Passenger |
Southwest Airlines Monthly Flight Calendar
December 2025
Route Insights
Duration variability: Flight duration on this route can vary based on aircraft type, wind conditions, and airline scheduling. Average duration is 2h 25m - 2h 43m.
Pricing patterns: January typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 7:00, 15:00, 20:00, offering more flight options and potentially better connections.
STL - BOS flight price statistics
$386
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$253
Jan$501
Feb$286
Mar$296
Apr$344
May$572
Jun$398
Jul$346
Aug$346
Sep$346
Oct$416
Nov$522
DecSouthwest Airlines Terminal Information
Terminal information for Southwest Airlines on this route is currently being updated. Please check back soon or contact the airports directly for terminal details.
Frequently Asked Questions about Southwest Airlines Flights
How many Southwest Airlines flights operate from STL to BOS?
Southwest Airlines operates 3 flights from STL to BOS.
What city does BOS airport serve?
BOS airport serves Boston.
How long is the Southwest Airlines flight from STL to BOS?
The flight duration is approximately 2h 25m - 2h 43m.
What is the distance from STL to BOS?
The distance is 1049 miles (1688 km).
What aircraft does Southwest Airlines use on this route?
Southwest Airlines uses Boeing 737-700 (winglets) Passenger/BBJ1, Boeing 737MAX 8 Passenger on this route.
Which other airlines operate on this route?
1 other airline operates on this route: American Airlines.
What are the earliest and latest Southwest Airlines flight departure times?
The earliest Southwest Airlines flight departs at 07:50 and the latest departs at 20:40.
What is the cheapest month to fly Southwest Airlines from STL to BOS?
January is typically the cheapest month to fly Southwest Airlines on this route.
What is the average price for a Southwest Airlines flight from STL to BOS?
The average price for a round-trip Southwest Airlines flight on this route is approximately $386. Prices can vary based on booking time and demand.
How many Southwest Airlines flights operate per week on this route?
Southwest Airlines operates approximately 45 flights per week from STL to BOS.