￥40,450 Cheap Flights from St. Louis (STL) to Boston (BOS)

View ￥40,450 flight on Fri, Apr 24, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at ￥40,450 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

February is typically the cheapest month to fly

From ￥19,161 - ￥67,576 per traveler.

Graph displaying average flight prices per month

Flights from St. Louis (STL) to Boston (BOS)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Logan Intl.
Distance
1669 km
Average flight time
3 hours 39 mins

St. Louis to Boston Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from St. Louis to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Boston.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with STL to BOS flights that won’t make your bank account wince. Ready to temporarily leave behind St. Louis for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to BOS with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from St. Louis Lambert International Airport to BOS?
Start packing your suitcase, because round-trip journeys from STL to Logan Intl. Airport (BOS) start from . That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can move quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from St. Louis Lambert International Airport to Logan Intl. Airport?
We get that circumstances change unexpectedly, so we've made it as hassle-free as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from STL to Logan Intl. Airport 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 STL to BOS flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from STL to Logan Intl. Airport?
It takes around 2 hours and 37 minutes to jet from STL to Logan Intl. Airport (BOS) — just enough time for a nap. You'll be starting your descent into Boston by the time you open your eyes.
How far is the flight from STL to Logan Intl. Airport (BOS)?
The flight distance between St. Louis Lambert International Airport and BOS is 1,700 kilometers. Bring a drink, a snack and something to read. Keep yourself entertained and the hours will fly by.
Which airlines fly direct from St. Louis Lambert International Airport to BOS?
A favorite with many savvy travelers, American Airlines (AA) operates 56 flights monthly from STL to Logan Intl. Airport. Pick the one that suits your travel plans and book your fare today.
Are Lambert-St. Louis Intl. Airport (STL) to Logan Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally score a bargain, with some super cheap airfares from Lambert Field to Logan Intl. Airport showing up a few weeks prior to the departure date. If you'd rather book ahead, Expedia compares and updates all the best flight deals continuously — as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines issue prices so far in advance.

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