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St. Louis to Boston flight ticket price

Compare live prices for STL to BOS. Use the search panel to change origin, destination, passengers, cabin and trip type instantly.
STL → BOS Approx. 1680.59 km 08 May 2026 Live 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,USA1680.59 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.

Before you book

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More flights from St. Louis (STL)
54 routes
St. Louis Atlanta
STL → ATL
St. Louis Burlington IA
STL → BRL
St. Louis Cancun
STL → CUN
St. Louis Cape Girardeau
STL → CGI
St. Louis Charlotte
STL → CLT
St. Louis Chicago
STL → MDW
St. Louis Cincinnati
STL → CVG
St. Louis Cleveland
STL → CLE
St. Louis Columbus
STL → CMH
St. Louis Dallas
STL → DAL
St. Louis Decatur
STL → DEC
St. Louis Denver
STL → DEN
St. Louis Detroit
STL → DTW
St. Louis Fort Lauderdale
STL → FLL
St. Louis Fort Leonard Wood
STL → TBN
St. Louis Fort Myers
STL → RSW
St. Louis Fort Worth
STL → DFW
St. Louis Grand Rapids
STL → GRR
St. Louis Houston
STL → IAH
St. Louis Houston
STL → HOU
St. Louis Jonesboro
STL → JBR
St. Louis Kansas City
STL → MCI
St. Louis Kirksville
STL → IRK
St. Louis Las Vegas
STL → LAS
St. Louis Little Rock
STL → LIT
St. Louis Los Angeles
STL → LAX
St. Louis Marion
STL → MWA
St. Louis Miami
STL → MIA
St. Louis Milwaukee
STL → MKE
St. Louis Minneapolis
STL → MSP
St. Louis Montego Bay
STL → MBJ
St. Louis Nashville
STL → BNA
St. Louis New Orleans
STL → MSY
St. Louis New York
STL → JFK
St. Louis Oklahoma City
STL → OKC
St. Louis Omaha
STL → OMA
St. Louis Orlando
STL → MCO
St. Louis Owensboro
STL → OWB
St. Louis Philadelphia
STL → PHL
St. Louis Phoenix
STL → PHX
St. Louis Pittsburgh International Airport
STL → PIT
St. Louis Puerto Vallarta
STL → PVR
St. Louis Punta Cana
STL → PUJ
St. Louis Quincy
STL → UIN
St. Louis Raleigh
STL → RDU
St. Louis Salt Lake City
STL → SLC
St. Louis San Antonio
STL → SAT
St. Louis San Diego
STL → SAN
St. Louis San Francisco
STL → SFO
St. Louis Seattle
STL → SEA
St. Louis Tampa
STL → TPA
St. Louis Toronto
STL → YYZ
St. Louis Tulsa
STL → TUL
St. Louis Washington DC
STL → IAD
More flights from Boston (BOS)
97 routes
Boston Akron
BOS → CAK
Boston Albany
BOS → ALB
Boston Amsterdam
BOS → AMS
Boston Atlanta
BOS → ATL
Boston Atlantic City
BOS → ACY
Boston Augusta
BOS → AUG
Boston Austin
BOS → AUS
Boston Bar Harbor
BOS → BHB
Boston Bermuda
BOS → BDA
Boston Buffalo
BOS → BUF
Boston Cancun
BOS → CUN
Boston Charleston
BOS → CHS
Boston Charlotte
BOS → CLT
Boston Chicago
BOS → ORD
Boston Cincinnati
BOS → CVG
Boston Cleveland
BOS → CLE
Boston Columbus
BOS → CMH
Boston Denver
BOS → DEN
Boston Detroit
BOS → DTW
Boston Dubai
BOS → DXB
Boston Dublin
BOS → DUB
Boston Fort Lauderdale
BOS → FLL
Boston Fort Myers
BOS → RSW
Boston Fort Worth
BOS → DFW
Boston Frankfurt
BOS → FRA
Boston Halifax International
BOS → YHZ
Boston Harrisburg
BOS → MDT
Boston Houston
BOS → IAH
Boston Houston
BOS → HOU
Boston Hyannis
BOS → HYA
Boston Indianapolis
BOS → IND
Boston Jacksonville
BOS → JAX
Boston Kansas City
BOS → MCI
Boston Las Vegas
BOS → LAS
Boston Lebanon
BOS → LEB
Boston Lisbon
BOS → LIS
Boston London
BOS → LHR
Boston Long Beach
BOS → LGB
Boston Long Island
BOS → ISP
Boston Los Angeles
BOS → LAX
Boston Madrid
BOS → MAD
Boston Martha-s Vineyard
BOS → MVY
Boston Miami
BOS → MIA
Boston Milwaukee
BOS → MKE
Boston Minneapolis
BOS → MSP
Boston Montreal
BOS → YUL
Boston Muenchen
BOS → MUC
Boston Myrtle Beach
BOS → MYR
Boston Nantucket
BOS → ACK
Boston Nashville
BOS → BNA
Boston Nassau
BOS → NAS
Boston New Orleans
BOS → MSY
Boston New York
BOS → JFK
Boston Oranjestad
BOS → AUA
Boston Orlando
BOS → MCO
Boston Ottawa
BOS → YOW
Boston Panama City
BOS → PTY
Boston Paris
BOS → CDG
Boston Philadelphia
BOS → PHL
Boston Phoenix
BOS → PHX
Boston Pittsburgh International Airport
BOS → PIT
Boston Plattsburgh
BOS → PBG
Boston Ponta Delgada
BOS → PDL
Boston Portland International
BOS → PDX
Boston Praia
BOS → RAI
Boston Presque Island
BOS → PQI
Boston Providenciales
BOS → PLS
Boston Provincetown
BOS → PVC
Boston Punta Cana
BOS → PUJ
Boston Raleigh
BOS → RDU
Boston Reykjavik
BOS → KEF
Boston Richmond
BOS → RIC
Boston Rochester
BOS → ROC
Boston Rockland
BOS → RKD
Boston Rome
BOS → FCO
Boston Rutland
BOS → RUT
Boston Salt Lake City
BOS → SLC
Boston San Diego
BOS → SAN
Boston San Francisco
BOS → SFO
Boston San Jose
BOS → SJC
Boston San Juan
BOS → SJU
Boston Santiago de los Caballeros
BOS → STI
Boston Santo Domingo
BOS → SDQ
Boston Saranac Lake
BOS → SLK
Boston Savannah
BOS → SAV
Boston Seattle
BOS → SEA
Boston Shannon
BOS → SNN
Boston St. Louis
BOS → STL
Boston St. Marteen
BOS → SXM
Boston St. Thomas
BOS → STT
Boston Syracuse
BOS → SYR
Boston Tampa
BOS → TPA
Boston Tokyo
BOS → NRT
Boston Toronto
BOS → YYZ
Boston Washington DC
BOS → DCA
Boston West Palm Beach
BOS → PBI
Boston Zurich
BOS → ZRH
❓ 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.