CA $196 Cheap Flights from St. Louis (STL) to Boston (BOS)

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

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

Prices were available within the past 7 days and start at CA $196 for one-way flights and CA $420 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

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Alternative airports near Boston

Prices were available within the past 7 days. Prices and availability are subject to change.

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

January is typically the cheapest month to fly

From CA $194 - CA $615 per traveller.

Frequently asked questions

How much is a flight from Lambert-St. Louis Intl. Airport (STL) to Logan Intl. Airport?
If you're travelling between STL and BOS, round-trip flights start from CA $420. This figure is based on airfares listed within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert Field to BOS?
This can vary between air carriers, as each one has its own set of terms and conditions. Visit the Customer Service Portal, where you'll find easy-to-follow instructions on how to cancel your flight online.
How do I find cheap flights from STL to Logan Intl. Airport that have flexible change policies?
Flights from Lambert Field to BOS with flexible change policies are available with many airlines. Simply use our "No change fees" filter when searching. You'll only need to cover the fare difference, with no extra fees to worry about.
How many hours is the flight from Lambert-St. Louis Intl. Airport (STL) to Logan Intl. Airport?
The flight from Lambert-St. Louis Intl. Airport (STL) to Logan Intl. Airport (BOS) is 5 hours and 50 minutes. You'll be lucky to finish an entire movie before touchdown!
How far is the flight from STL to Logan Intl. Airport?
It's around 1,700 kilometres between St. Louis and Boston, so you'll be up in the air for a while. Keep yourself entertained by packing things like playing cards (if you're travelling with friends) or the latest bestseller.
Which airlines fly direct from Lambert Field to Logan Intl. Airport (BOS)?
A popular airline that flies from Lambert Field to Logan Intl. Airport (BOS) is Southwest Airlines (WN). It offers 47 flights monthly. American Airlines (AA) is also worth checking out. It offers 43 flights per month. Between these two airlines, you'll be able to find a great deal from St. Louis to Boston.
Are STL to Logan Intl. Airport (BOS) flight tickets cheaper when they're purchased at the last minute?
Flight prices always go up and down, so not always. While last-minute flight deals between STL and BOS are possible, it also makes sense to monitor prices well before you fly. In fact, some air carriers advertise their prices up to a year before the departure date. Expedia is constantly updating the best bargains around, so keep checking back and be ready to lock in your seat when the price is low.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Logan Intl.
Roundtrip price
CA $419
Distance
1669 km
Average flight time
3 hours 34 mins

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