€90 Cheap Flights Boston to St. Louis (BOS-STL)

View €90 flight on Mon, 5 May 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to St. Louis Lambert Intl. Airport (STL)

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

Prices were available within the past 7 days and start at €90 for one-way flights and €238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 24 Apr - Mon, 28 Apr
BOS
Boston
STL
St. Louis
€238 Return, found 1 day ago
€238
Return
found 1 day ago
Select Delta flight, departing Thu, 24 Apr from Boston to St. Louis, returning Mon, 28 Apr, priced at €238 found 1 day ago
Delta
Thu, 24 Apr - Mon, 28 Apr
BOS
Boston
STL
St. Louis
€241 Return, found 1 day ago
€241
Return
found 1 day ago
Select Delta flight, departing Thu, 24 Apr from Boston to St. Louis, returning Mon, 28 Apr, priced at €241 found 1 day ago
American Airlines
Thu, 24 Apr - Mon, 28 Apr
BOS
Boston
STL
St. Louis
€265 Return, found 1 day ago
€265
Return
found 1 day ago
Select American Airlines flight, departing Thu, 24 Apr from Boston to St. Louis, returning Mon, 28 Apr, priced at €265 found 1 day ago
Delta
Thu, 24 Apr - Mon, 28 Apr
BOS
Boston
STL
St. Louis
€265 Return, found 1 day ago
€265
Return
found 1 day ago
Select Delta flight, departing Thu, 24 Apr from Boston to St. Louis, returning Mon, 28 Apr, priced at €265 found 1 day ago
American Airlines
Thu, 24 Apr - Mon, 28 Apr
BOS
Boston
STL
St. Louis
€268 Return, found 1 day ago
€268
Return
found 1 day ago
Select American Airlines flight, departing Thu, 24 Apr from Boston to St. Louis, returning Mon, 28 Apr, priced at €268 found 1 day ago
American Airlines
Thu, 24 Apr - Mon, 28 Apr
BOS
Boston
STL
St. Louis
€273 Return, found 1 day ago
€273
Return
found 1 day ago
Select American Airlines flight, departing Thu, 24 Apr from Boston to St. Louis, returning Mon, 28 Apr, priced at €273 found 1 day ago
Delta
Thu, 24 Apr - Mon, 28 Apr
BOS
Boston
STL
St. Louis
€275 Return, found 1 day ago
€275
Return
found 1 day ago
Select Delta flight, departing Thu, 24 Apr from Boston to St. Louis, returning Mon, 28 Apr, priced at €275 found 1 day ago
Delta
Thu, 24 Apr - Mon, 28 Apr
BOS
Boston
STL
St. Louis
€278 Return, found 1 day ago
€278
Return
found 1 day ago
Select Delta flight, departing Thu, 24 Apr from Boston to St. Louis, returning Mon, 28 Apr, priced at €278 found 1 day ago
Delta
Thu, 1 May - Thu, 8 May
BOS
Boston
STL
St. Louis
€285 Return, found 3 days ago
€285
Return
found 3 days ago
Select Delta flight, departing Thu, 1 May from Boston to St. Louis, returning Thu, 8 May, priced at €285 found 3 days ago
United
Thu, 24 Apr - Mon, 28 Apr
BOS
Boston
STL
St. Louis
€322 Return, found 1 day ago
€322
Return
found 1 day ago
Select United flight, departing Thu, 24 Apr from Boston to St. Louis, returning Mon, 28 Apr, priced at €322 found 1 day ago
Boston to St. Louis route information
Origin airport
Logan Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Return price
€238
Distance
1669 km

Perfect flights from Boston to St. Louis

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Boston to St. Louis. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Logan Intl. to Lambert-St. Louis Intl. ticket options cater to your travel preferences, with incredible one-way fares from €90 and roundtrip prices from €238. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Lambert-St. Louis Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in St. Louis.

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 €238. 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 cancelled 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 kilometres. Listen to your favourite 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 travellers 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.