- Cheapest roundtrip flight
- from€474
- Fastest outbound flight
- Fastest inbound flight
- non-stop flights
- 28x / week
- Flight distance
- 1,682 km
- Time difference
- Most popular airlines
- Southwest Airlines
- American Airlines
- Southwest Airlines
Flight schedule from Boston (BOS) to St. Louis (STL)
Select a travel date in the flight schedule for the route from Boston (BOS) to St. Louis (STL) and compare affordable flight deals.
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Matching outbound flightsBOS–STL · 19 of 19
fromto
dep.arr.
durationstopovers
- September 20 – 26, 2026
- Sep 27 – Oct 3, 2026
- October 4 – 10, 2026
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTL1 stopover
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTLnonstop
- BOSSTLnonstop
Tips and tricks to help you find cheap flights from Boston to St. Louis
Favorite airline: American Airlines
Flight tickets on the route Boston – St. Louis are most frequently booked with American Airlines.
American Airlines
24 %
United Airlines
19 %
Delta
14 %
Important flight information
Frequently Asked Questions (FAQ)
How long is the flight from Boston to St. Louis?
A nonstop flight from Boston to St. Louis typically takes around 3 hours 5 minutes. If you choose a connecting flight, allow more travel time. Typical one-stop itineraries take around 15 hours 39 minutes. For the quickest trip, a nonstop flight is usually the most comfortable choice.
Are there nonstop flights from Boston to St. Louis?
Yes, there are nonstop flights from Boston to St. Louis, averaging around 4 to 5 flights per day, operated by, among others, Southwest and American Airlines. If you want to fly without a layover, it is worth filtering specifically for nonstop flights when searching.
Which airlines fly from Boston to St. Louis?
Direct flights from Boston to St. Louis are operated by, among others, Southwest and American Airlines. Connecting flights with one stop are also available, for example with Alaska Airlines (via Seattle-Tacoma). If travel time matters to you, a direct flight is usually the most convenient option. Connecting flights often give you more choice of departure times and airlines.
On which days are there nonstop flights from Boston to St. Louis?
Nonstop flights from Boston to St. Louis operate daily. The schedule may vary by season, so it is worth comparing several travel dates. If your preferred day does not have a nonstop flight, nearby departure days or short connecting flights may be a good alternative.
How many flights are there per day from Boston to St. Louis?
On the route from Boston to St. Louis, there are on average around 4 to 5 flights per day. The number of flights can vary by day of the week and season. If you are flexible with your dates, it is worth comparing several departure days.
How many flights per week are there from Boston to St. Louis?
From Boston to St. Louis, there are around 28 to 29 flights per week. This means you usually have connections available on several days and at various times. Beyond the price, it is worth comparing flight duration, airline, and any potential additional fees.
When does the first flight from Boston to St. Louis depart?
The earliest nonstop flight from Boston to St. Louis usually departs at 5:00 AM. The exact departure time may vary by day of the week and airline. Early flights are especially useful if you want to make the most of your arrival day in St. Louis.
When does the last flight from Boston to St. Louis depart?
The last nonstop flight from Boston to St. Louis usually departs at 7:55 PM. Late flights can be convenient if you want to travel after work or in the evening. Do check whether it is a nonstop flight, as a connecting itinerary could push the arrival time significantly later.