US$48️ Cheap Flights from St. Louis to Boston (2024)

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St. Louis to Boston - Flights Starting at US$48

Book one-way or return flights from St. Louis to Boston from as little as US$48. Choose from the popular airlines below and book your flight today!

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

We've found these cheap flights for you. You may book a one-way or round trip as per your needs.

We monitor flight fares to help you seize the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Cheapest airlines flights from St. Louis to Boston

View airlines operating flights from St. Louis to Boston. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines

From US$53

Delta Air Lines

From US$91

American Airlines

From US$112

Spirit Airlines

From US$118

United Airlines

From US$128

Sun Country Airlines

From US$133

Southwest Airlines

From US$136

Southern Airways Express

From US$162

Alaska Airlines

From US$236

ANA airlines

Find more flights and airlines

Alternative Routes from St. Louis to Boston

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from St. Louis to Boston.

Cheapest
STL
17:25
15h 18m
1 transfer
BOS
09:43
St. Louis Lambert International Airport - General Edward Lawrence Logan International Airport
Sat, May 18Frontier Airlines
US$53
STL
17:25
15h 18m
1 transfer
BOS
09:43
St. Louis Lambert International Airport - General Edward Lawrence Logan International Airport
Sat, May 18Frontier Airlines
US$53
Find More Flights

Frequently Asked Questions

When are flight tickets from St. Louis (STL) to Boston (BOS) the cheapest?
Airlines adjust prices for flights from St. Louis to Boston based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from St. Louis (STL) to Boston (BOS) cost?
According to Trip.com's data, the lowest price is around $381.
How long does it take to fly from St. Louis (STL) to Boston (BOS) and what is the distance?
It takes around 2 hours 35 minutes to fly from St. Louis (STL) to Boston (BOS).
What are the most popular airlines that fly from St. Louis (STL) to Boston (BOS)?
Airlines with flights from St. Louis (STL) to Boston (BOS): Southwest Airlines, Qatar Airways, Iberia and American Airlines.

How to find a cheap flight from St. Louis to Boston

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to Boston. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com

St. Louis to Boston Flight Information

Cheapest nonstop flight price	$48
Cheapest round-trip ticket price	$223
Off-season for travel	May
Peak season for travel	October
Flight distance	1,670.94km
Average flight time	2 hours 35 minutes
Popular airline	American Airlines