- 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 St. Louis (STL) to Boston (BOS)
Select a travel date in the flight schedule for the route from St. Louis (STL) to Boston (BOS) and compare affordable flight deals.
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Matching outbound flightsSTL–BOS · 20 of 20
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- September 20 – 26, 2026
- Sep 27 – Oct 3, 2026
- October 4 – 10, 2026
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Tips and tricks to help you find cheap flights from St. Louis to Boston
Favorite airline: Spirit Airlines
64 % of bookings on this flight route are made with Spirit Airlines, American Airlines and Delta.
Spirit Airlines
27 %
American Airlines
20 %
Delta
17 %
Important flight information
Frequently Asked Questions (FAQ)
How long is the flight from St. Louis to Boston?
A nonstop flight from St. Louis to Boston typically takes around 2 hours 25 minutes. If you choose a connecting flight, allow more travel time. Typical one-stop itineraries take around 15 hours 38 minutes. For the quickest trip, a nonstop flight is usually the most comfortable choice.
Are there nonstop flights from St. Louis to Boston?
Yes, there are nonstop flights from St. Louis to Boston, 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 St. Louis to Boston?
Direct flights from St. Louis to Boston 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) and Frontier Airlines (via Orlando). 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 St. Louis to Boston?
Nonstop flights from St. Louis to Boston 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 St. Louis to Boston?
On the route from St. Louis to Boston, 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 St. Louis to Boston?
From St. Louis to Boston, 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 St. Louis to Boston depart?
The earliest nonstop flight from St. Louis to Boston usually departs at 5:10 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 Boston.
When does the last flight from St. Louis to Boston depart?
The last nonstop flight from St. Louis to Boston usually departs at 8:50 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.