CA $156 Cheap Flights from Boston (BOS) to St. Louis (STL)

Popular airlines from Logan International Airport (BOS) to Lambert-St. Louis International Airport (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 $156 for one-way flights and CA $204 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Spirit Airlines
American Airlines
Delta
Delta
Delta
Delta
American Airlines
American Airlines
United

Find the cheapest month to fly from Boston (BOS) to St. Louis (STL)

October is typically the cheapest month to fly

From CA $169 - CA $399 per traveller.

Graph displaying average flight prices per month

Flight from Boston to St. Louis (BOS - STL) route information
Origin airport
Logan Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
CA $204
Distance
1669 km
Average flight time
2 hours 2 mins

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 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 $204 rising to CA $554.  

Here are more money-saving tips: 

  • Fly in August 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 Logan Intl. Airport (BOS) to Lambert Field?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight from Logan Intl. Airport to Lambert-St. Louis Intl. Airport (STL) was CA $204. Fares this good don't last long, so make sure you book yours ASAP. 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 Lambert-St. Louis Intl. Airport (STL)?
Most flights can be conveniently cancelled online, but whether or not you are charged a fee varies between airlines. If you do need to cancel your escape, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL) that have flexible change policies?
Flights from BOS to STL with flexible change policies are available with many carriers. Simply use our "No change fees" filter when searching. You'll only need to cover the cost difference between flights, with no additional fees to worry about.
How many hours is the flight from BOS to STL?
It takes around 6 hours and 27 minutes to jet from Logan Intl. Airport to Lambert Field. But with some music and a good book, the time will pass by quicker.
How far is the flight from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
The flight distance from Boston to St. Louis is 1,700 kilometres. Bring along a drink, some snacks and an interesting book to read. Keep yourself busy in the air and time will zip by.
Which airlines fly direct from BOS to Lambert Field?
American Airlines (AA) is the preferred choice for many travellers. It offers 43 flights between Logan Intl. Airport (BOS) and Lambert-St. Louis Intl. Airport (STL) each month. If you want more options, check out the fares from Southwest Airlines (WN). This airlines operates 43 monthly flights between these airports.
Are BOS to Lambert-St. Louis Intl. Airport (STL) flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Logan Intl. Airport (BOS) to STL can be hit-or-miss. You might be lucky and score a bargain, but you could also miss out completely! If you'd rather start your travel planning early on, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines list their prices that far in advance. Our advice? Check back often as updates are made regularly.

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