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

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save on select hotels after you book a flight*
    trophy illustration

    Find the right fit

    We search billions of combinations of flights to help you find your next adventure

Frequently asked questions

How long does it take to fly from STL to Logan Intl. Airport?
A direct flight with American Airlines takes about 2 hours and 42 minutes. Hop on the 1:47PM flight from Lambert-St. Louis Intl. Airport (STL) and arrive at BOS at 5:29PM. Snag an awesome deal on this and other routes when you use Expedia to book your journey.
Is it cheaper to buy a plane ticket from Lambert Field to BOS last minute?
When it comes to booking your flights, being prepared pays off. While it's possible to find a deal on a STL to Logan Intl. Airport (BOS) flight at the last minute, tickets usually don't get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days in advance. For international trips it's between three and four months.
What airports do you fly into for Boston from St. Louis?
Logan Intl. Airport (BOS), Manchester-Boston Regional Airport (MHT) and Provincetown Municipal Airport (PVC) are your options when taking off from St. Louis to Boston. About 3 kilometers east of the center of Boston, Logan Intl. Airport (BOS) is the city's main gateway. Keep in mind factors like flight schedules and the distance to your hotel before choosing your airport. Fenway Park and Boston Common are two top attractions to put on your itinerary when you reach your destination.
What are the most popular departure times for flights from Lambert-St. Louis Intl. Airport (STL) to Logan Intl. Airport?
For American Airlines flights making their way from STL to Logan Intl. Airport (BOS), the busiest period is between 10:00 AM - 11:00 AM. If you want to avoid any holdups, head out in the morning. This way you're likely to avoid air traffic that accumulates in the afternoon and evening.
Can I change the date of my flight from STL to Logan Intl. Airport (BOS)?
You can easily make changes to your Lambert-St. Louis Intl. Airport (STL) to Logan Intl. Airport trip via the Expedia Trips portal. But before amending dates or times, read the conditions in your itinerary to learn what the airline will allow you to do and if any charges apply. Some airlines have a change fee per person, on top of any difference in prices. However, if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also find your way to our Customer Service portal for more information and to chat with our Virtual Agent.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Logan Intl.
Distance
1669 km
Average flight time
4 hours 14 mins

Book with confidence

Book with confidence

St. Louis to Boston Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from St. Louis to Boston offer the perfect respite. Not only does exploring Boston provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from St. Louis to Boston may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from STL to BOS today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Boston are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Boston more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Boston is now!

St. Louis to Boston Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia