$80 Cheap Flights from Boston (BOS) to St. Louis (STL)

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

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

Prices were available within the past 7 days and start at $80 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

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

February is typically the cheapest month to fly

From $131 - $421 per traveler.

Alternative airports near St. Louis

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

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL) cost?
Lock in a cheap one-way flight from $80 or cheap return flight from $197 from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from BOS to STL is January, when there's less demand. Off-peak months are usually when you'll find cheap fares for travel between these airports.
Which airlines fly direct from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
Hop on a direct flight with American Airlines and fly straight from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL).
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
While prices may vary depending on when you travel, American Airlines and Southwest Airlines are popular options for flights between Logan Intl. Airport (BOS) and Lambert-St. Louis Intl. Airport (STL). You can also compare carriers on Expedia and use the "Sort by" filter to find the cheapest ticket for your BOS to STL flight.
How many flights per day from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
When jetting out of Logan Intl. Airport (BOS), you'll have your pick from an average of 2 daily direct flights to Lambert-St. Louis Intl. Airport (STL).
What are the most popular departure times for flights from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
More people fly between BOS and STL at 6 AM than at any other time of day. Looking for a quieter experience? Travel outside of rush hours and it's possible you'll save on your ticket as well.
What day of the week has the most flights from BOS to STL?
Sunday offers the most flights from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL). Consider jetting off on this day and you'll have a greater chance of finding a departure that fits your itinerary.
What is the earliest flight from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
Catch the earliest flight at around 6:15AM UTC-5, departing from Logan Intl. Airport (BOS). You'll be in the air for around 3h 15m, landing at Lambert-St. Louis Intl. Airport (STL) at approximately 8:30AM UTC-6.
How long does it take to fly from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
The average flight time from BOS to STL is 3 hours and 18 minutes, covering a distance of 1,050 mi.
What is the best time to fly from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
To avoid possible delays on the Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL) route, fly before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for St. Louis from Logan Intl. Airport (BOS)?
If you're on a direct flight from Logan Intl. Airport (BOS) to St. Louis, Lambert-St. Louis Intl. Airport (STL) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Waiting until just before your trip to book a ticket from BOS to STL often results in higher prices. While you might find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of scoring a bargain.
Is it cheaper to book a BOS to STL flight and hotel package?
Compared with arranging flights and hotels separately, booking a BOS to STL flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place takes the hassle out of planning your trip. Just pick your flights and choose from our wide range of stays, then tailor your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Lambert-St. Louis Intl. Airport (STL)?
Typically, you can cancel or reschedule your BOS to STL flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you'd like further information, go to our Customer Service portal.

Travel information

Origin airport
Logan Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$197
Distance
1043 mi
Average flight time
2 hours 40 mins

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