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Cheap flights Boston — St Louis

Boston (BOS, US) St Louis (STL, US)
from $173 1 667 km ~2h 28m 1 flights found 1 airlines cheapest on Wednesday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $173 on 18.11.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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December 2026
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January 2027
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Prices found for 1 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
18 Nov 2026, Wed
American Airlines AA 3444
15:00
BOS Logan International Airport
18:16
STL Lambert-St. Louis International Airport
3h 16m Direct
Tickets
$173
View this ticket
Route characteristics
Distance
1 667 km
Flight time
2h 28m
Time difference
-1h
Minimum price
from $173 (18.11.2026)
Average price
$173
Maximum price
$173
Cheapest day
Wednesday
Departure airports (1)
BOS Logan International Airport
Arrival airports (1)
STL Lambert-St. Louis International Airport
Airlines (1)
AA American Airlines
Agencies (1)
Tickets
Airlines — cheapest prices 1
American Airlines
American Airlines
1 flights · 1 days
$173
Where to buy tickets 1
Tickets
1 tickets · 1 days
from $173
Airports

From — Boston (1)

  • BOS Logan International Airport

To — St Louis (1)

  • STL Lambert-St. Louis International Airport
Other destinations from Boston
Nantucket
US
Albany
US
Augusta
US
Bar Harbor
US
Hyannis
US
Lebanon
US
Martha's Vineyard
US
Provincetown
US
Rockland
US
Rutland
US
Saranac Lake
US
Dallas
US · Hub
Frequently asked questions about the route Boston — St Louis
How long is the flight from Boston to St Louis?
Approximate flight time — 2h 28m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Boston to St Louis?
The straight-line distance — 1 667 km.
How much do flights from Boston to St Louis cost?
The minimum price over 3 months — from $173 on 18.11.2026.
What is the average ticket price?
The average price — $173. Range: $173 — $173.
What is the time difference between Boston and St Louis?
The difference — -1h.
From which airports does Boston operate flights?
From Boston: BOS (Logan International Airport).
To which airports in St Louis do flights arrive?
To St Louis: STL (Lambert-St. Louis International Airport).
Which airlines fly this route?
This route is served by 1 airline: American Airlines.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $173. Total direct flights found: 1.
Which day of the week is cheapest?
The cheapest day of the week — Wednesday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Boston — St Louis

Flights Boston — St Louis is a popular route. The straight-line distance is 1 667 km. Flight time 2h 28m. Time difference -1h.

From Boston (BOS) flights depart from 1 airport: BOS. To St Louis (STL) — 1 arrival airport: STL.

1 airline operate on this route: American Airlines.

The minimum price for the next 3 months — from $173 (18.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $173, ranging from $173 to $173. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Wednesday.

Other destinations in United States from Boston
Nantucket
US
Albany
US
Augusta
US
Bar Harbor
US
Hyannis
US
Lebanon
US
Martha's Vineyard
US
Provincetown
US

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