$116 Cheap flight deals from Boston (BOS) to St. Louis (STL)

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This Weekend's Flight Deals from Boston to St. Louis

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jun 20 - Sun, Jun 22
BOS
Logan Intl.
STL
Lambert-St. Louis Intl.
$484 Roundtrip, found 2 days ago
$484
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Jun 20 from Logan Intl. to Lambert-St. Louis Intl., returning Sun, Jun 22, priced at $484 found 2 days ago
Sat, Jun 21 - Wed, Jul 2
PVD
T.F. Green
STL
Lambert-St. Louis Intl.
$536 Roundtrip, found 10 hours ago
$536
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Sat, Jun 21 from T.F. Green to Lambert-St. Louis Intl., returning Wed, Jul 2, priced at $536 found 10 hours ago
Sun, Jun 22 - Fri, Jul 4
MHT
Manchester-Boston Regional
STL
Lambert-St. Louis Intl.
$592 Roundtrip, found 6 days ago
$592
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, Jun 22 from Manchester-Boston Regional to Lambert-St. Louis Intl., returning Fri, Jul 4, priced at $592 found 6 days ago

Airfares from $116 One Way, $239 Round Trip from Boston to St. Louis

Prices starting at $239 for return flights and $116 for one-way flights to St. Louis were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 29 - Wed, Jul 30
BOS
Boston
STL
St. Louis
$239 Roundtrip, found 8 hours ago
$239
Roundtrip
found 8 hours ago
Select Spirit Airlines flight, departing Tue, Jul 29 from Boston to St. Louis, returning Wed, Jul 30, priced at $239 found 8 hours ago
Thu, Aug 21 - Sat, Aug 23
BOS
Boston
STL
St. Louis
$247 Roundtrip, found 1 hour ago
$247
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Aug 21 from Boston to St. Louis, returning Sat, Aug 23, priced at $247 found 1 hour ago
Thu, Jul 24 - Sat, Aug 2
BOS
Boston
STL
St. Louis
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Thu, Jul 24 from Boston to St. Louis, returning Sat, Aug 2, priced at $249 found 1 day ago
Fri, Jul 4 - Thu, Jul 10
BOS
Boston
STL
St. Louis
$266 Roundtrip, found 2 days ago
$266
Roundtrip
found 2 days ago
Select Sun Country Airlines flight, departing Fri, Jul 4 from Boston to St. Louis, returning Thu, Jul 10, priced at $266 found 2 days ago
Wed, Oct 15 - Sat, Oct 18
MHT
Manchester
STL
St. Louis
$267 Roundtrip, found 5 days ago
$267
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Wed, Oct 15 from Manchester to St. Louis, returning Sat, Oct 18, priced at $267 found 5 days ago

St. Louis economy flight packages

Price found within the past 48 hours. Click for updated prices.
Isle of Capri Casino Hotel Boonville
3.0-star property

Isle of Capri Casino Hotel Boonville

8.4/10 Very Good! (787 reviews)

Jul 23 - Jul 27

4 night stay

Boston (BOS) to St. Louis (STL)

American Airlines • Roundtrip • Coach
per person
found 17 hours ago
Much outdated. Carpet stained. Miniature toilet Noisy with live band below our room.

Reviewed on Sep 15, 2024

The Wildwood Hotel
3.5-star property

The Wildwood Hotel

9/10 Wonderful! (1,530 reviews)

Jul 23 - Jul 27

4 night stay

Boston (BOS) to St. Louis (STL)

American Airlines • Roundtrip • Coach
per person
found 17 hours ago
Attentive front desk

Reviewed on May 15, 2025

The Cheshire
4.0-star property

The Cheshire

8.6/10 Excellent! (1,004 reviews)

Jul 23 - Jul 27

4 night stay

Boston (BOS) to St. Louis (STL)

American Airlines • Roundtrip • Coach
per person
found 17 hours ago
Check in was smooth went into room to do my normal inspection and the bathroom had a overwhelming urine and feces smell. I looked around and saw tissue paper on the stand that had dried feces in it. I went to wash my hands and the smell of urine became stronger someone had to be urinating in the sink. Immediately went downstairs to advise of the situation and they gave a different room. The new room was better it was very drafty by the window but that's what comes with stained glass windows that open vintage style. Breakfast was good, nice variety for sure. Would stay there again but this is a VINTAGE hotel, not historical so please understand it is not going to be modern. It is a themed hotel.

Reviewed on Feb 17, 2025

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More About Flying To St. Louis from Boston

Route Information for Flights from Boston to St. Louis

Origin Airport IATA Code
BOS
Destination Airport IATA Code
STL
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Fly from Boston to St Louis

Visit the famous Gateway Arch and a catch a bird's eye view when you fly from Boston to St. Louis. Travelers will find daily flights between Boston Logan International Airport (BOS) and Lambert-St Louis International Airport (STL), some as short as three hours. The airport is located in East Boston and is one of the largest airports in New England. Passengers are able to travel between terminals using a series of shuttle buses, moving walkways and the MBTA Silver Line trains.

Attractions

In addition to touring the Gateway Arch, visitors will want to visit St Louis to experience the full range of musical styles the city is known for. St Louis is home to the St Louis Symphony Orchestra as well as a myriad of downtown clubs that feature home-grown ragtime, jazz and blues music. Major League Baseball fans will be excited to see the Cardinals play at Busch Stadium. Football fanatics can watch the St Louis Rams play at Edward Jones Dome.

Hints and tips

STL is comprised of five concourses, allowing transfers via bus or MetroLink. While waiting at the airport, guests will want to visit the Black Americans in Flight mural, located in Terminal One. Summers in St Louis are pleasantly warm with highs of about 86 degrees while lows in winter usually hit the 20s in January and February.

Frequently asked questions

Are there non-stop flights from Boston to St. Louis?
Have your passport at the ready, because Southwest Airlines will take you directly from Boston to St. Louis. Book your fare now and enjoy a trouble-free, nonstop flight.
What is the shortest flight from Boston to St. Louis?
With the flight from Boston, MA (BOS-Logan Intl.) to Lambert Field taking a minimum of 3 hours and 36 minutes, you'll have plenty of time to relax and enjoy the ride. Order an in-flight wine or two and get comfortable in your seat with an engrossing movie or novel.
What airlines fly from Boston to St. Louis most frequently?
Southwest Airlines offers the most services from Boston to St. Louis, with 60 monthly flights.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.