Route guide
Cheap Flights from Boston to St. Louis: Book Airline Tickets
- Distance
- about 1,040 mi
- Typical flight time
- 2 h 15 min – 3 h 15 min
- Airports
- 1 × 1
- Time difference
- 1 h behind
This page covers the practical side of flying between Boston and St. Louis: which airports to compare, how long the trip takes, and when it is busy. It works for either direction. For a price on your dates, ask a specialist.
Quick answer: Boston to St. Louis is about 1,040 miles (1,670 km) and a typical flight takes 2 h 15 min to 3 h 15 min. St. Louis is 1 hour behind Boston. Boston has 1 airport to compare and St. Louis has 1.
Airport pairs to compare
Boston's Logan airport is unusually close to downtown, separated from the center only by the harbor. St. Louis has one main airport with a light rail link to downtown.
| Pair | Departure airport | Arrival airport |
|---|---|---|
| BOS to STL | Boston Logan International | St. Louis Lambert International |
About the airports
- BOS · Boston Logan International
Minutes from downtown across the harbor, with subway and Silver Line bus access. - STL · St. Louis Lambert International
The main airport, northwest of downtown and linked to the city by MetroLink light rail.
Airlines with a major base at either end
- At Boston: Delta Air Lines, JetBlue Airways
Airlines with a base at one end often connect through their hub. A specialist can compare nonstop and connecting options on your dates.
When to go and what to expect
Boston
Fall foliage season (late September through October) is popular and tends to be expensive. Winter storms can disrupt travel.
St. Louis
Spring and fall are the most comfortable seasons. Summers are hot and humid, and winter can bring snow and ice.
How long is Boston to St. Louis?
At about 1,040 miles, Boston to St. Louis is a short-to-medium flight. Fares on routes this length are sensitive to the day of the week and the time of day, so check a few departure times before you settle.
Time zones and timing
St. Louis is 1 hour behind Boston, so you land at a local time 1 hour earlier than departure time plus flight time would suggest. Plan your arrival day around local time at the destination.
Getting between the airport and town
Boston: The Blue Line subway and the Silver Line bus connect Logan with downtown.
St. Louis: MetroLink light rail runs from the airport to downtown St. Louis. Taxis, ride-hail and rental cars are also available.
Planning ground transport too? See our car rental guide.
Good to know
- Book earlier for fall weekends and graduation season in late spring, when hotels and flights fill up.
- Winter storms and summer thunderstorms are the usual causes of delays, so leave extra connection time in those seasons.
- Compare the total with bags included, not just the base fare. See baggage fees and taxes and fees.
Flying St. Louis to Boston?
This route guide works in both directions. For other trips, see all flights from Boston or all flights from St. Louis.
Frequently asked questions
How far is Boston from St. Louis?
The straight-line distance between the main airports is about 1,040 miles (1,670 km). Routes can be longer in practice because of air traffic and weather.
How long is a flight from Boston to St. Louis?
A typical scheduled flight takes roughly 2 h 15 min to 3 h 15 min in the air, depending on winds, the aircraft and the airports. Connecting itineraries take longer, and nonstop availability depends on the airline and dates.
Which airports can I use?
At Boston: BOS (Boston Logan International). At St. Louis: STL (St. Louis Lambert International). Ask for prices on more than one pairing.
Is there a time difference?
St. Louis is 1 hour behind Boston.
When is the best time to fly from Boston to St. Louis?
In Boston: Fall foliage season (late September through October) is popular and tends to be expensive. Winter storms can disrupt travel. In St. Louis: Spring and fall are the most comfortable seasons. Summers are hot and humid, and winter can bring snow and ice. Fares are usually highest in the busy periods described for each city, so flexible dates can help.
Which airlines should I compare for Boston to St. Louis?
Airlines with a major base at either end include Delta Air Lines and JetBlue Airways. A specialist compares them with other carriers on your dates, since schedules and availability change.
Do you show fares on this page?
No. Fares change constantly, so we do not publish prices that might be out of date. A specialist checks live availability and confirms the full total, including taxes and bags, before you pay.
Route details updated October 18, 2026.