Boston (BOS) to Saint Louis (STL) flights
An economy award from Boston (BOS) to Saint Louis (STL) starts at 5,500 miles one way with American AAdvantage on American Airlines, plus taxes and fees from $5.60. 2 airlines fly nonstop from Boston (BOS) to Saint Louis (STL): 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 Pittsburgh, Columbus and Cleveland and more.
How many miles BOS to STL costs
Economy, one way, on the nonstop flights, from the Award Flight Pricer's award charts. Ranges run off-peak to peak; "from" is the floor of a dynamic price.
| Program | Economy | Taxes and fees |
|---|---|---|
| American AAdvantageOn American Airlines | 5,500 | $5.60 |
| Alaska Atmos RewardsOn American Airlines | 7,500 | $25.60 |
| Iberia ClubOn American Airlines | 9,000 | $5.60 |
| Qatar Airways Privilege ClubOn American Airlines | 13,000 | $5.60 |
| Qantas Frequent FlyerOn American Airlines | 13,800 | $5.60 |
| Cathay Pacific Asia MilesOn American Airlines | 15,000 | $5.60 |
| Etihad GuestOn American Airlines | 15,000 | $5.60 |
| JAL Mileage BankOn American Airlines | 15,000 | $5.60 |
| British Airways ClubOn American Airlines | 16,000 | $5.60 |
| Finnair PlusOn American Airlines | 16,500 | $5.60 |
Business and first class prices are in the Award Flight Pricer. Chart prices need award space on your date, so search it before you transfer points.
Compare every program in the Award Flight PricerAirlines flying nonstop from BOS to STL
- American Airlinesoneworld · bookable with 9 programsWho books it
- Southwest AirlinesNot in an allianceWho books it
Book BOS to STL 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
BOS to STL with one stop
30 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Pittsburgh (PIT)JetBlue Airways and Delta Air Lines, then Southwest Airlines
- Via Columbus (CMH)Delta Air Lines and American Airlines, then Southwest Airlines
- Via Cleveland (CLE)JetBlue Airways and Delta Air Lines, then Southwest 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
BOS to STL: common questions
How many miles does BOS to STL cost?
In economy it starts at 5,500 miles one way with American AAdvantage on American Airlines, plus taxes and fees from $5.60. Next cheapest: Alaska Atmos Rewards (7,500), Iberia Club (9,000) and Qatar Airways Privilege Club (13,000). These are award chart prices from the Award Flight Pricer. Programs that price dynamically can cost more on busy dates, so check yours before you transfer points. Business and first class prices are in the pricer too.
Which airlines fly nonstop from BOS to STL?
American Airlines (oneworld) and Southwest Airlines fly nonstop from Boston (BOS) to Saint Louis (STL).
How far is Boston from Saint Louis by plane?
Boston (BOS) and Saint Louis (STL) 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 BOS to STL 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.
Where can I connect between Boston and Saint Louis?
The most direct connections are through Pittsburgh (PIT), Columbus (CMH), Cleveland (CLE), 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.