CA $145 Cheap Flights from Boston (BOS) to St. Louis (STL)

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Cheap flights from Boston (BOS) to St. Louis (STL)

Prices were available within the past 7 days and start at CA $145 for one-way flights and CA $320 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon., Jun. 3 - Tue., Jun. 11
BOS
Boston
STL
St. Louis
CA $320 Roundtrip, found 6 days ago
CA $320
Roundtrip
found 6 days ago
Select Delta flight, departing Mon., Jun. 3 from Boston to St. Louis, returning Tue., Jun. 11, priced at CA $320 found 6 days ago
Delta
Fri., May 31 - Sat., Jun. 1
BOS
Boston
STL
St. Louis
CA $329 Roundtrip, found 4 days ago
CA $329
Roundtrip
found 4 days ago
Select Delta flight, departing Fri., May 31 from Boston to St. Louis, returning Sat., Jun. 1, priced at CA $329 found 4 days ago
Spirit Airlines
Sat., Jun. 15 - Wed., Jun. 19
BOS
Boston
STL
St. Louis
CA $332 Roundtrip, found 6 days ago
CA $332
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Sat., Jun. 15 from Boston to St. Louis, returning Wed., Jun. 19, priced at CA $332 found 6 days ago
American Airlines
Fri., May 31 - Sat., Jun. 1
BOS
Boston
STL
St. Louis
CA $342 Roundtrip, found 4 days ago
CA $342
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri., May 31 from Boston to St. Louis, returning Sat., Jun. 1, priced at CA $342 found 4 days ago
American Airlines
Fri., May 31 - Sat., Jun. 1
BOS
Boston
STL
St. Louis
CA $353 Roundtrip, found 4 days ago
CA $353
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri., May 31 from Boston to St. Louis, returning Sat., Jun. 1, priced at CA $353 found 4 days ago
American Airlines
Fri., May 31 - Sat., Jun. 1
BOS
Boston
STL
St. Louis
CA $355 Roundtrip, found 4 days ago
CA $355
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri., May 31 from Boston to St. Louis, returning Sat., Jun. 1, priced at CA $355 found 4 days ago
American Airlines
Mon., Jun. 3 - Tue., Jun. 11
BOS
Boston
STL
St. Louis
CA $364 Roundtrip, found 6 days ago
CA $364
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon., Jun. 3 from Boston to St. Louis, returning Tue., Jun. 11, priced at CA $364 found 6 days ago
American Airlines
Mon., Jun. 3 - Tue., Jun. 11
BOS
Boston
STL
St. Louis
CA $366 Roundtrip, found 6 days ago
CA $366
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon., Jun. 3 from Boston to St. Louis, returning Tue., Jun. 11, priced at CA $366 found 6 days ago
Delta
Mon., Jun. 3 - Tue., Jun. 11
BOS
Boston
STL
St. Louis
CA $373 Roundtrip, found 6 days ago
CA $373
Roundtrip
found 6 days ago
Select Delta flight, departing Mon., Jun. 3 from Boston to St. Louis, returning Tue., Jun. 11, priced at CA $373 found 6 days ago
American Airlines
Mon., Jun. 3 - Tue., Jun. 11
BOS
Boston
STL
St. Louis
CA $377 Roundtrip, found 6 days ago
CA $377
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon., Jun. 3 from Boston to St. Louis, returning Tue., Jun. 11, priced at CA $377 found 6 days ago
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Flight from Boston to St. Louis (BOS - STL) route information
Origin airport
Logan Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
CA $319
Distance
1669 km

Boston to St. Louis Flights

The easy way to book your flights from Boston to St. Louis 

With Expedia, it’s simple to find and book flights to St. Louis from Boston whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are American Airlines, Qatar Airways, Southwest Airlines nonstop flights to Lambert-St. Louis Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Boston to St. Louis today, tomorrow, or this week.  

 

Save dollars with cheap flights from Logan Intl., BOS to Lambert-St. Louis Intl., STL 

Sort your search results by price to find great deals on your flight from Boston to St. Louis—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to St. Louis from Boston currently is just CA $320 rising to CA $377.  

Here are more money-saving tips: 

  • Fly in June when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to St. Louis  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to St. Louis from Boston 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to St. Louis with Expedia today.

Frequently asked questions

How much is a flight from BOS to Lambert-St. Louis Intl. Airport (STL)?
The lowest price advertised for a round-trip flight from Logan Intl. Airport (BOS) to St. Louis Lambert International Airport is CA $320. But you better act fast. This figure is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Logan Intl. Airport (BOS) to STL?
The majority of flights can be conveniently canceled online, but whether or not you incur a fee depends on your airline. If you do have to cancel your trip, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from BOS to Lambert-St. Louis Intl. Airport (STL) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Logan Intl. Airport to Lambert-St. Louis Intl. Airport (STL) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
The flight distance between Logan Intl. Airport and Lambert-St. Louis Intl. Airport (STL) is 1,700 kilometers. Listen to your favorite tunes or finish off your latest read and the journey will zip on by.
Which airlines fly direct from Logan Intl. Airport to Lambert Field?
Southwest Airlines (WN) is one of the preferred choices for many travelers flying between Logan Intl. Airport and STL. Choose from the 78 flights it offers on this route each month. American Airlines (AA) is also worth considering. It operates 56 flights every month. Between these two airlines, you’ll be able to find a great deal from Boston to St. Louis.
Are Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from BOS to Lambert Field at the last minute could be your ticket to an awesome deal. However, it could end up costing you a whole lot more! If you’d prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains as far ahead as 12 months in advance. If your preferred air carrier hasn’t released tickets yet, check back frequently as deals are updated all the time on Expedia.
*Available to Expedia members.