Cheap Flight Tickets from Boston (BOS) to St Louis (STL), Starting at $235

Good to Know: Cheapest and Fastest BOS - STL Flights

Useful information for finding best airline tickets from Logan International to Lambert St Louis International on your next trip.

Cheapest Round Trip Flight

$235

WN Southwest Airlines • 1 stop • 20h 40m

Sep 15 – Sep 24

The cheapest round trip flight from Boston to St Louis (BOS-STL-BOS) is currently $235

🔍 Search Flights

Cheapest Direct Flight

$236

WN Southwest Airlines • nonstop • 5h

Sep 15

The cheapest nonstop flight from Boston to St Louis (BOS-STL) is currently $236

🔍 Search Flights

Fastest Flight

4h 10m

The fastest nonstop flight from Boston to St Louis (BOS-STL) takes 4h 10m

Latest Flight Deals from Boston (BOS) to St Louis (STL)

Compare and book low fare round-trip air tickets from Boston to St Louis. Ideal for travelers with confirmed return itineraries.

Sep 15 - Sep 24, Economy
WN
Boston → St Louis
20h 40m
10:05 AM - 9:45 PM • 1 stop
WN
Boston → St Louis
10h
5:45 AM - 12:45 PM • 1 stop
$235
Southwest Airlines
Sep 15 - Sep 24, Economy
WN
Boston → St Louis
4h 10m
5:35 AM - 7:25 AM • nonstop
WN
Boston → St Louis
10h 30m
2:45 PM - 10:15 PM • 2 stops
$246
Southwest Airlines
Sep 15 - Sep 24, Economy
DL
Boston → St Louis
8h 20m
1:10 PM - 5:10 PM • 1 stop
DL
Boston → St Louis
8h 43m
6:54 PM - 1:17 AM • 1 stop
$252
Delta Airlines
Sep 15 - Sep 24, Economy
DL
Boston → St Louis
13h 26m
1:00 PM - 8:06 PM • 1 stop
DL
Boston → St Louis
8h 43m
6:54 PM - 1:17 AM • 1 stop
$252
Delta Airlines
Sep 15 - Sep 24, Economy
DL
Boston → St Louis
11h 43m
1:55 PM - 7:58 PM • 1 stop
DL
Boston → St Louis
8h 43m
6:54 PM - 1:17 AM • 1 stop
$252
Delta Airlines
Sep 15 - Sep 24, Economy
DL
Boston → St Louis
15h 32m
8:15 AM - 4:47 PM • 1 stop
DL
Boston → St Louis
8h 43m
6:54 PM - 1:17 AM • 1 stop
$298
Delta Airlines

Fly from Boston to St Louis with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Boston to St Louis? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Boston to St Louis Flights

What are the airports in Boston?
BOS
What’s the most popular airline flying from BOS to STL?
The most popular airline flying from Boston to St Louis are
Can I fly from BOS to STL non-stop?
Yes, you can fly BOS to STL non-stop on
Which airlines fly nonstop between Boston and St Louis?
The non-stop flights between Boston and St Louis are .
What’s the earliest departure time from BOS to STL Airport?
The earliest flight leaves BOS at 5:35 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Boston to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from BOS to STL?
Read the fare rules of the Boston to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Boston and St Louis?
operate flights between Boston and St Louis
How long does a flight from Boston to St Louis take?
It takes approximately 3 hour to fly non-stop from BOS to STL, which is 1046.69 miles by air.
Which airlines provide the cheapest flights from Boston (BOS) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from BOS were found on DL : USD 252
Do I need a passport to fly between BOS and STL?
No
What’s the latest departure time from BOS to STL ?
The last flight leaves BOS at 5:45 pm

Boston (BOS) to St Louis (STL): Airport Information

Origin Airport Logan International, Boston, US
Destination Airport Lambert St Louis International , St Louis, US
Distance 1047 miles

More Flight Options for Boston (BOS) and St Louis (STL)

Why Fareleaders for BOS to STL Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Boston to St Louis flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on BOS to STL flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Boston to St Louis flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Boston (BOS) to St Louis (STL)
Terms and Conditions*