Compare live prices for BOS to STL. Use the search panel
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BOS → STLApprox. 1680.59 km08 May 2026Live inventory
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Showing 25
of 145
live flights
Southwest Airlines
WN-3665
18:55
05/08/2026
BOS
General Edward Lawrence Logan International Airport
19h 5m
1 Stop
⏱ MDW · 16h 0mMDW Airport
14:00
05/09/2026
+1
STL
St Louis Lambert International Airport
₹20,345
per person
✕ Non-refundable🔥 Last 2 seats4 fare options
Southwest Airlines
WN-776
10:40
05/08/2026
BOS
General Edward Lawrence Logan International Airport
23h 50m
1 Stop
⏱ MDW · 20h 55mMDW Airport
10:30
05/09/2026
+1
STL
St Louis Lambert International Airport
₹21,748
per person
✕ Non-refundable🔥 Last 4 seats4 fare options
Southwest Airlines
WN-898
15:45
05/08/2026
BOS
General Edward Lawrence Logan International Airport
18h 45m
1 Stop
⏱ MDW · 15h 45mMDW Airport
10:30
05/09/2026
+1
STL
St Louis Lambert International Airport
₹22,683
per person
✕ Non-refundable🔥 Last 3 seats4 fare options
Southwest Airlines
WN-3665
18:55
05/08/2026
BOS
General Edward Lawrence Logan International Airport
24h 50m
1 Stop
⏱ MDW · 21h 45mMDW Airport
19:45
05/09/2026
+1
STL
St Louis Lambert International Airport
₹23,617
per person
✕ Non-refundable🔥 Last 2 seats4 fare options
Southwest Airlines
WN-892
17:05
05/08/2026
BOS
General Edward Lawrence Logan International Airport
20h 15m
1 Stop
⏱ DEN · 14h 15mDEN Airport
13:20
05/09/2026
+1
STL
St Louis Lambert International Airport
₹23,898
per person
✕ Non-refundable4 fare options
American Airlines
AA-4224
15:00
05/08/2026
BOS
General Edward Lawrence Logan International Airport
2h 12m
Non-stop
17:12
05/08/2026
STL
St Louis Lambert International Airport
₹23,916
per person
✕ Non-refundable14 fare options
Delta Air Lines
DL-5609
21:00
05/08/2026
BOS
General Edward Lawrence Logan International Airport
14h 37m
1 Stop
⏱ LGA · 11h 25mLGA Airport
11:37
05/09/2026
+1
STL
St Louis Lambert International Airport
₹23,995
per person
✕ Non-refundable
Delta Air Lines
DL-5847
20:00
05/08/2026
BOS
General Edward Lawrence Logan International Airport
15h 37m
1 Stop
⏱ LGA · 12h 23mLGA Airport
11:37
05/09/2026
+1
STL
St Louis Lambert International Airport
₹23,995
per person
✕ Non-refundable
Delta Air Lines
DL-5609
21:00
05/08/2026
BOS
General Edward Lawrence Logan International Airport
18h 19m
1 Stop
⏱ LGA · 15h 14mLGA Airport
15:19
05/09/2026
+1
STL
St Louis Lambert International Airport
₹23,995
per person
✕ Non-refundable
Delta Air Lines
DL-5847
20:00
05/08/2026
BOS
General Edward Lawrence Logan International Airport
19h 19m
1 Stop
⏱ LGA · 16h 12mLGA Airport
15:19
05/09/2026
+1
STL
St Louis Lambert International Airport
₹23,995
per person
✕ Non-refundable
Delta Air Lines
DL-5702
20:55
05/08/2026
BOS
General Edward Lawrence Logan International Airport
19h 48m
1 Stop
⏱ JFK · 16h 31mJFK Airport
16:43
05/09/2026
+1
STL
St Louis Lambert International Airport
₹23,995
per person
✕ Non-refundable
American Airlines
AA-425
19:50
05/08/2026
BOS
General Edward Lawrence Logan International Airport
12h 37m
1 Stop
⏱ ORD · 9h 2mORD Airport
08:27
05/09/2026
+1
STL
St Louis Lambert International Airport
₹24,276
per person
✕ Non-refundable
Southwest Airlines
WN-901
11:35
05/08/2026
BOS
General Edward Lawrence Logan International Airport
1h 55m
Non-stop
13:30
05/08/2026
STL
St Louis Lambert International Airport
₹24,339
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-900
05:40
05/08/2026
BOS
General Edward Lawrence Logan International Airport
2h 0m
Non-stop
07:40
05/08/2026
STL
St Louis Lambert International Airport
₹24,339
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-908
18:45
05/08/2026
BOS
General Edward Lawrence Logan International Airport
2h 10m
Non-stop
20:55
05/08/2026
STL
St Louis Lambert International Airport
₹24,339
per person
✕ Non-refundable6 fare options
Delta Air Lines
DL-1019
05:40
05/08/2026
BOS
General Edward Lawrence Logan International Airport
3h 49m
1 Stop
⏱ DTW · 0h 54mDTW Airport
09:29
05/08/2026
STL
St Louis Lambert International Airport
₹24,824
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-1432
17:15
05/08/2026
BOS
General Edward Lawrence Logan International Airport
3h 54m
1 Stop
⏱ DTW · 0h 55mDTW Airport
21:09
05/08/2026
STL
St Louis Lambert International Airport
₹24,824
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-385
10:16
05/08/2026
BOS
General Edward Lawrence Logan International Airport
5h 59m
1 Stop
⏱ ATL · 2h 32mATL Airport
16:15
05/08/2026
STL
St Louis Lambert International Airport
₹24,824
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-5726
16:00
05/08/2026
BOS
General Edward Lawrence Logan International Airport
4h 39m
1 Stop
⏱ LGA · 1h 15mLGA Airport
20:39
05/08/2026
STL
St Louis Lambert International Airport
₹24,824
per person
✕ Non-refundable2 fare options
American Airlines
AA-425
19:50
05/08/2026
BOS
General Edward Lawrence Logan International Airport
4h 6m
1 Stop
⏱ ORD · 0h 40mORD Airport
23:56
05/08/2026
STL
St Louis Lambert International Airport
₹24,824
per person
✕ Non-refundable8 fare options
American Airlines
AA-2815
17:35
05/08/2026
BOS
General Edward Lawrence Logan International Airport
4h 44m
1 Stop
⏱ ORD · 1h 3mORD Airport
22:19
05/08/2026
STL
St Louis Lambert International Airport
₹24,824
per person
✕ Non-refundable8 fare options
American Airlines
AA-1416
15:05
05/08/2026
BOS
General Edward Lawrence Logan International Airport
4h 24m
1 Stop
⏱ PHL · 0h 58mPHL Airport
19:29
05/08/2026
STL
St Louis Lambert International Airport
₹24,824
per person
✕ Non-refundable8 fare options
American Airlines
AA-2096
08:07
05/08/2026
BOS
General Edward Lawrence Logan International Airport
4h 41m
1 Stop
⏱ PHL · 1h 21mPHL Airport
12:48
05/08/2026
STL
St Louis Lambert International Airport
₹24,824
per person
✕ Non-refundable8 fare options
American Airlines
AA-4571
10:00
05/08/2026
BOS
General Edward Lawrence Logan International Airport
5h 12m
1 Stop
⏱ LGA · 1h 49mLGA Airport
15:12
05/08/2026
STL
St Louis Lambert International Airport
₹24,824
per person
✕ Non-refundable8 fare options
American Airlines
AA-4439
06:00
05/08/2026
BOS
General Edward Lawrence Logan International Airport
5h 13m
1 Stop
⏱ LGA · 2h 0mLGA Airport
11:13
05/08/2026
STL
St Louis Lambert International Airport
₹24,824
per person
✕ Non-refundable8 fare options
😕 No flights match your filters.
Boston (BOS)
📍 General Edward Lawrence Logan International Airport
🌍 United States
🕐 GMT -5
📐 Latitude: 42.36429977
📐 Longitude: -71.00520325
St. Louis (STL)
📍 St Louis Lambert International Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 38.748697
📐 Longitude: -90.370003
✈ Distance: Boston,USA to St. Louis,USA — 1680.59 km
📅 Results on this page are loaded for 08 May 2026. Click View all flights for the complete live search.
Boston to St. Louis — what to expect when booking
The BOS–STL route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between Boston,USA and St. Louis,USA is approximately
1680.59 km.
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❓ Frequently asked questions — Boston to St. Louis flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between Boston,USA (BOS) and St. Louis,USA (STL) is approximately 1680.59 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.