Compare live prices for STL to BOS. Use the search panel
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STL → BOSApprox. 1680.59 km08 May 2026Live inventory
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Showing 25
of 135
live flights
Frontier Airlines
F9-2646
17:27
05/08/2026
STL
St Louis Lambert International Airport
7h 57m
1 Stop
⏱ ATL · 2h 26mATL Airport
01:24
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹15,324
per person
✕ Non-refundable
Frontier Airlines
F9-2636
16:19
05/08/2026
STL
St Louis Lambert International Airport
16h 53m
1 Stop
⏱ MCO · 10h 7mMCO Airport
09:12
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹15,858
per person
✕ Non-refundable
American Airlines
AA-4224
17:49
05/08/2026
STL
St Louis Lambert International Airport
3h 41m
Non-stop
21:30
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹23,916
per person
✕ Non-refundable14 fare options
American Airlines
AA-4624
11:45
05/08/2026
STL
St Louis Lambert International Airport
3h 46m
Non-stop
15:31
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹23,916
per person
✕ Non-refundable14 fare options
Southwest Airlines
WN-4439
19:40
05/08/2026
STL
St Louis Lambert International Airport
3h 30m
Non-stop
23:10
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,339
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-4438
14:30
05/08/2026
STL
St Louis Lambert International Airport
3h 35m
Non-stop
18:05
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,339
per person
✕ Non-refundable6 fare options
Delta Air Lines
DL-2822
18:04
05/08/2026
STL
St Louis Lambert International Airport
5h 25m
1 Stop
⏱ DTW · 0h 53mDTW Airport
23:29
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-4981
06:00
05/08/2026
STL
St Louis Lambert International Airport
6h 20m
1 Stop
⏱ LGA · 1h 32mLGA Airport
12:20
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-4981
06:00
05/08/2026
STL
St Louis Lambert International Airport
7h 20m
1 Stop
⏱ LGA · 2h 32mLGA Airport
13:20
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-1393
19:01
05/08/2026
STL
St Louis Lambert International Airport
6h 22m
1 Stop
⏱ ATL · 0h 56mATL Airport
01:23
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-1536
07:05
05/08/2026
STL
St Louis Lambert International Airport
6h 44m
1 Stop
⏱ ATL · 1h 31mATL Airport
13:49
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable2 fare options
American Airlines
AA-5541
15:43
05/08/2026
STL
St Louis Lambert International Airport
6h 51m
1 Stop
⏱ DCA · 1h 57mDCA Airport
22:34
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable8 fare options
American Airlines
AA-3128
05:51
05/08/2026
STL
St Louis Lambert International Airport
5h 41m
1 Stop
⏱ ORD · 0h 44mORD Airport
11:32
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable8 fare options
American Airlines
AA-1926
12:27
05/08/2026
STL
St Louis Lambert International Airport
6h 22m
1 Stop
⏱ ORD · 1h 24mORD Airport
18:49
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable12 fare options
American Airlines
AA-4368
06:35
05/08/2026
STL
St Louis Lambert International Airport
5h 47m
1 Stop
⏱ LGA · 0h 51mLGA Airport
12:22
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable8 fare options
American Airlines
AA-4521
15:42
05/08/2026
STL
St Louis Lambert International Airport
7h 12m
1 Stop
⏱ LGA · 2h 10mLGA Airport
22:54
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable8 fare options
American Airlines
AA-1308
06:29
05/08/2026
STL
St Louis Lambert International Airport
5h 57m
1 Stop
⏱ PHL · 1h 5mPHL Airport
12:26
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable8 fare options
American Airlines
AA-3130
13:29
05/08/2026
STL
St Louis Lambert International Airport
6h 1m
1 Stop
⏱ PHL · 1h 6mPHL Airport
19:30
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable13 fare options
American Airlines
AA-2950
09:10
05/08/2026
STL
St Louis Lambert International Airport
6h 24m
1 Stop
⏱ CLT · 1h 15mCLT Airport
15:34
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable8 fare options
Delta Air Lines
DL-1571
09:15
05/08/2026
STL
St Louis Lambert International Airport
6h 5m
1 Stop
⏱ ATL · 0h 50mATL Airport
15:20
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable
American Airlines
AA-4135
08:54
05/08/2026
STL
St Louis Lambert International Airport
6h 24m
1 Stop
⏱ ORD · 1h 23mORD Airport
15:18
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable6 fare options
American Airlines
AA-5411
06:00
05/08/2026
STL
St Louis Lambert International Airport
6h 57m
1 Stop
⏱ DCA · 2h 1mDCA Airport
12:57
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable7 fare options
American Airlines
AA-418
17:21
05/08/2026
STL
St Louis Lambert International Airport
7h 4m
1 Stop
⏱ ORD · 2h 1mORD Airport
00:25
05/09/2026
+1
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable7 fare options
Delta Air Lines
DL-4825
16:25
05/08/2026
STL
St Louis Lambert International Airport
7h 12m
1 Stop
⏱ JFK · 1h 55mJFK Airport
23:37
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable
American Airlines
AA-2444
07:05
05/08/2026
STL
St Louis Lambert International Airport
7h 21m
1 Stop
⏱ ORD · 2h 19mORD Airport
14:26
05/08/2026
BOS
General Edward Lawrence Logan International Airport
₹24,824
per person
✕ Non-refundable7 fare options
😕 No flights match your filters.
St. Louis (STL)
📍 St Louis Lambert International Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 38.748697
📐 Longitude: -90.370003
Boston (BOS)
📍 General Edward Lawrence Logan International Airport
🌍 United States
🕐 GMT -5
📐 Latitude: 42.36429977
📐 Longitude: -71.00520325
✈ Distance: St. Louis,USA to Boston,USA — 1680.59 km
📅 Results on this page are loaded for 08 May 2026. Click View all flights for the complete live search.
St. Louis to Boston — what to expect when booking
The STL–BOS 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 St. Louis,USA and Boston,USA is approximately
1680.59 km.
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❓ Frequently asked questions — St. Louis to Boston 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 St. Louis,USA (STL) and Boston,USA (BOS) 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.