Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.
STLBOSSat, 14 Nov
Fare checked before payment All fees shown upfront Transparent cancellation policy 24×7 booking support
Lowest fare₹15,322Delta Air Lines
Fastest2h 38mgate to gate
Options found143flights on this route
Find your flightSTL → BOS
Available Flights & Fares
Compare fares, timings and baggage. Pick the flight that suits your trip.
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Delta Air Lines
DL-1524
06:00
2026-11-14
St Louis (STL)Lambert-St Louis Intl
5H :32 M
1 Stop
ATL
· 1h 20m Atlanta (ATL), United States
12:32
2026-11-14
BOSTON (BOS)Logan International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
₹15,322
Flight DetailsSTL to BOS - 5H :32 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Delta Air Lines
DL-1536
07:13
2026-11-14
St Louis (STL)Lambert-St Louis Intl
5H :29 M
1 Stop
ATL
· 1h 25m Atlanta (ATL), United States
13:42
2026-11-14
BOSTON (BOS)Logan International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
₹15,322
Flight DetailsSTL to BOS - 5H :29 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Delta Air Lines
DL-2868
10:20
2026-11-14
St Louis (STL)Lambert-St Louis Intl
4H :32 M
1 Stop
DTW
· 1h 08m Detroit (DTW), United States
15:52
2026-11-14
BOSTON (BOS)Logan International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
₹15,322
Flight DetailsSTL to BOS - 4H :32 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Delta Air Lines
DL-543
17:30
2026-11-14
St Louis (STL)Lambert-St Louis Intl
6H :38 M
1 Stop
ATL
· 2h 30m Atlanta (ATL), United States
01:08
2026-11-15
BOSTON (BOS)Logan International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
₹15,322
Flight DetailsSTL to BOS - 6H :38 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Fare RulesRefundable fare. Final rules are verified before booking.
United Airlines
UA-4395
11:15
2026-11-14
St Louis (STL)Lambert-St Louis Intl
5H :09 M
1 Stop
ORD
· 1h 08m Chicago (ORD), United States
17:24
2026-11-14
BOSTON (BOS)Logan International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
₹20,525
Flight DetailsSTL to BOS - 5H :09 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Type
Non Refundable
Fare Type
AirLine Private
0 Pieces 1 Pieces
₹66,358
Flight DetailsSTL to BOS - 5H :09 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Up to 120 of 143 options on this route. Open the full search to see them all with every filter.
No flights match the selected filters. Clear filters or open full search.
Airfare Highlights
From flights departing on Sat, 14 Nov 2026.
Lowest fare₹15,322Delta Air Lines06:00
Earliest departure₹20,525United Airlines05:00
Shortest duration₹19,794American Airlines18:20
Night
00:00-05:59
₹20,525United Airlines at 05:00Morning
06:00-11:59
₹15,322Delta Air Lines at 06:00Afternoon
12:00-17:59
₹15,322Delta Air Lines at 17:30Evening
18:00-23:59
₹19,794American Airlines at 18:20
Departure & Arrival Airport Details
St Louis (STL)
Lambert-St Louis Intl
United States
GMT -6
Latitude: 38.748697
Longitude: -90.370003
Boston (BOS)
Logan International
United States
GMT -5
Latitude: 42.36429977
Longitude: -71.00520325
Distance: St Louis (STL), United States to Boston (BOS), United States - 1,680.59 km
Flights shown for 14 Nov 2026. View all flights opens the complete search result.
Fares and hotel rates usually run higher around these dates. Booking earlier or moving your trip by a day or two often costs less.
Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).
11NovVeterans DayWednesdayPeak
26NovThanksgiving DayThursdayPeak
25DecChristmas DayFridayPeak
01JanNew Year's DayFridayPeak
18JanMartin Luther King, Jr. DayMondayPeak
12FebLincoln's BirthdayFridayPeak
Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here, so check the exact date for your travel year.
Compare your journey
How to travel St Louis to Boston
Ways to make this trip that you can book on FlyX, compared by price and journey time.
OptionFromJourney timeAvailabilityAction
Non-stop flight Fastest₹19,7942h 38m2 flights
Connecting flight₹15,322Longer, includes a stop141 options
Air distance is about 1,681 km. 4 airlines operate this route.
Road distance and coach duration are approximate estimates from the air distance, not a timetable.
Airlines flying from St Louis to Boston
Compare fares, stops, baggage and refundability across the airlines flying this route.
UN
United Airlines Flights
from ₹20,52573 flights
Fares from
₹20,525
Non-stop
None in these results
Departures
73 in the list above
AM
American Airlines Flights
from ₹19,79436 flights
Fares from
₹19,794
Non-stop
2 in these results
Departures
36 in the list above
DE
Delta Air Lines Flights
from ₹15,32231 flights
Fares from
₹15,322
Non-stop
None in these results
Departures
31 in the list above
AL
Alaska Airlines Flights
from ₹49,3463 flights
Fares from
₹49,346
Non-stop
None in these results
Departures
3 in the list above
Route Overview & Flight Facts
Fastest flight duration
2h 38m · American Airlines
First departure of the day
05:00 · United Airlines
Last departure of the day
18:50 · United Airlines
Flight options found
143
Direct / non-stop options
2
Airport codes
St Louis–STL, Boston–BOS
Fares and timings are indicative. The exact price is confirmed with the airline when you search.
Flight Schedule, Timings & Airfare Insights
Daily Flight Schedule & Travel Duration
The search for Sat, 14 Nov found 143 flight options, 2 of them non-stop. The first flight leaves around 05:00 and the last around 18:50. The fastest flight takes about 2h 38m.
Morning vs Evening Departure Fares
Lowest fare by departure window: Morning from ₹15,322, Afternoon from ₹15,322, Evening from ₹19,794, Night from ₹20,525. These observations do not predict the cheapest departure window on other dates.
Cheapest Airfare & Best Time to Book
Search your travel dates to compare current fares. Prices change with airline seat availability.
One-Way vs Round-Trip Fare Comparison
Compare the complete cost and conditions of both options for your dates. A round-trip can have different fare and change rules from two one-way tickets. One booking may contain multiple airline PNRs; confirm baggage transfer and connection protection for separate tickets.
Online Web Check-In & Boarding Pass
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How to Book Cheap Flights on FlyX
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2
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4
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5
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Why Book Your Flight with FlyX?
Compare the available St Louis to Boston options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.
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Frequently Asked Questions
Is it worth booking St Louis to Boston flights in advance?
There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. On the St Louis to Boston dates shown on this page, the lowest fare is on a Saturday at ₹15,322. This can change from week to week.
How far is St Louis from Boston by air?
The direct air distance between St Louis (STL) and Boston (BOS) is about 1,681 km. Actual flight time varies with the routing the airline files and with winds on the day.
Is there a direct flight from St Louis to Boston?
Yes. 2 non-stop flights are listed on this page for St Louis to Boston, operated by American Airlines. Use the Stops filter to see only those.
Which airlines fly St Louis to Boston?
United Airlines, American Airlines, Delta Air Lines and Alaska Airlines are listed on this route for the dates shown here. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.
How long is the flight from St Louis to Boston?
The quickest non-stop St Louis to Boston flight on this page takes about 2h 38m. Non-stop flights here take between 2h 38m and 2h 39m. Journeys with a stop take longer, since the total includes the layover.
What is the cheapest St Louis to Boston flight fare?
The lowest St Louis to Boston fare on this page is ₹15,322. Fares on the same dates run up to ₹274,645, depending on airline, timing and fare type. Airline prices change often, so search your dates for the current fare.
Which is the cheapest airline for St Louis to Boston flight?
On this page, Delta Air Lines has the lowest St Louis to Boston fare, starting from ₹15,322. American Airlines is next, from ₹19,794. The cheapest airline can change with the date, so compare a few days around your trip.
What time do St Louis to Boston flights depart?
On the dates shown here, the first departure is around 05:00 and the last around 18:50, local time at St Louis. Use the departure-time filter on the results above to narrow to a morning, afternoon or evening slot.
Why does the price change after clicking Book Now?
Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay. If it has moved, you see the new figure before any payment.
Before you book this route
Check the airport codes STL–BOS, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.
Where these fares come from
The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price. Run a search to see what is available for your own dates.
Fares shown are for departures on .
Check official travel requirements
Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.
Planning more than the flight? Our United States guide covers the best time to go, how long to plan for, and which places are worth the days you have. Long-haul city breaks and national parks.
The STL to BOS cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.
Approx route distance: 1,680.59 km.
Before you book
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Lowest St Louis to Boston airfare, in 30 days and in 90 days
Cheapest Fare
Fare
Date
Airline
Departure
Lowest Airfare
₹15,322
14/11/2026
Delta Air Lines
06:00
Cheapest Airfare Within 30 Days
₹15,016
27/11/2026
Delta Air Lines
06:00
Cheapest Airfare Within 90 Days
₹14,556
26/01/2027
Delta Air Lines
06:00
Book St Louis to Boston Flight Tickets on FlyX
FlyX lists each St Louis to Boston flight in these results with its fare, departure time, stops, layover airport and baggage, so you can compare air tickets side by side. To find a cheap ticket, sort by price and check what baggage the fare includes. The fare is checked with the airline again before you pay.
St Louis to Boston Flight Distance, Duration and Time
The aerial distance between St Louis and Boston is about 1,681 KM. In these results, journey times range from 2h 38m to 25h 22m. Flights with a layover take longer because the total includes the connection time.
St Louis to Boston flight duration is approximately 2 hours 38 minutes non-stop. There are 2 non-stop St Louis to Boston direct flights on the departure date shown on this page. St Louis to Boston flight distance is around 1,681 KM.
St Louis to Boston Flight Schedule and Timing
The search for these dates returned 143 flight options, 2 of them non-stop. The first departure from St Louis is at 05:00 and the last is at 18:50. Flights leave from Lambert-St Louis Intl and land at Logan International.
Flight Route Details & Analysis
Flight Details
Information
Route
St Louis to Boston
Aerial Distance
1,681 KM
Flight Duration
2h 38m - 25h 22m
Airport Codes
St Louis - STL, Boston - BOS
Total Flights Available
143 flights2 direct141 with layovers
First Flight Departure
Departs at 05:00
Last Flight Departure
Departs at 18:50
Early Morning Flights (12 AM - 8 AM)
58 flights0 direct58 with layovers
Morning Flights (8 AM - 12 PM)
48 flights0 direct48 with layovers
Afternoon Flights (12 PM - 4 PM)
25 flights1 direct24 with layovers
Evening Flights (4 PM - 8 PM)
12 flights1 direct11 with layovers
Night Flights (8 PM - 12 AM)
No flights in this time slot
Airport Information & Terminals
STL: St. Louis airport. St. Louis airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.
BOS: Boston Logan International Airport. Logan is close to downtown Boston compared with many US airports. Taxis, airport buses and transit work well, but winter weather and academic move-in dates can change travel ease.
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St Louis to Boston
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Lambert-St Louis Intl
