Saint Louis (STL) to Boston (BOS) flights
2 airlines fly nonstop from Saint Louis (STL) to Boston (BOS): American Airlines and Southwest Airlines. The two airports are 1,044 miles (1,680 km) apart. American Airlines is in oneworld. There are also 30 ways to fly it with one stop, through Cleveland, Pittsburgh and Columbus and more.
Airlines flying nonstop from STL to BOS
- American Airlinesoneworld · bookable with 9 programsWho books it
- Southwest AirlinesNot in an allianceWho books it
Book STL to BOS with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Alaska Atmos RewardsBooks American Airlines
- American AAdvantageBooks American Airlines
- British Airways ClubBooks American Airlines
- Cathay Pacific Asia MilesBooks American Airlines
- Finnair PlusBooks American Airlines
- Iberia ClubBooks American Airlines
- JAL Mileage BankBooks American Airlines
- Qantas Frequent FlyerBooks American Airlines
- Qatar Airways Privilege ClubBooks American Airlines
STL to BOS with one stop
30 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Cleveland (CLE)Southwest Airlines, then JetBlue Airways and Delta Air Lines
- Via Pittsburgh (PIT)Southwest Airlines, then JetBlue Airways and Delta Air Lines
- Via Columbus (CMH)Southwest Airlines, then Delta Air Lines and American Airlines
- Via Detroit (DTW)Delta Air Lines the whole way
- Via New York (EWR)United Airlines the whole way
- Via New York (LGA)American Airlines and Delta Air Lines the whole way
- Via Philadelphia (PHL)American Airlines the whole way
- Via Toronto (YYZ)Air Canada the whole way
- Via Baltimore (BWI)Southwest Airlines the whole way
- Via Dulles (IAD)United Airlines the whole way
- Via Chicago (MDW)Southwest Airlines the whole way
- Via Washington (DCA)American Airlines the whole way
- Via Chicago (ORD)American Airlines and United Airlines the whole way+1
- Via Milwaukee (MKE)Southwest Airlines the whole way+1
- Via Nashville (BNA)Southwest Airlines the whole way
STL to BOS: common questions
Which airlines fly nonstop from STL to BOS?
American Airlines (oneworld) and Southwest Airlines fly nonstop from Saint Louis (STL) to Boston (BOS).
How far is Saint Louis from Boston by plane?
Saint Louis (STL) and Boston (BOS) are 1,044 miles (1,680 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book STL to BOS award flights?
9 programs can book at least one of the nonstop airlines: Alaska Atmos Rewards, American AAdvantage, British Airways Club, Cathay Pacific Asia Miles, Finnair Plus, Iberia Club, JAL Mileage Bank, Qantas Frequent Flyer and 1 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does STL to BOS cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for STL to BOS with taxes and fees.
Where can I connect between Saint Louis and Boston?
The most direct connections are through Cleveland (CLE), Pittsburgh (PIT), Columbus (CMH), Detroit (DTW) and New York (EWR). On 19 of them the same airline flies both flights, for example Delta Air Lines through Detroit.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.