Flight deals from Boston to St. Louis

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • Round-trip
  • One way

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

Find the best time to fly from Boston to St. Louis

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  • Apr

    30 6
  • 6 13
  • 13 20
  • 20 27

  • May

    27 4
  • 4 11
  • 11 18
  • 18 25

  • Jun

    25 1
  • 1 8
  • 8 15
  • 15 22
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Boston to St. Louis

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Delta Air Lines logo Delta Air Lines

FAQ

  • When are flight tickets from Boston (BOS) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from Boston to St. Louis 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 Boston (BOS) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around NZD 593.

  • How long does it take to fly from Boston (BOS) to St. Louis (STL) and what is the distance?

    It takes around 3 hours 34 minutes to fly from Boston (BOS) to St. Louis (STL).

  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20 km. It takes about 40 minutes by taxi.

  • What are the most popular airlines that fly from Boston (BOS) to St. Louis (STL)?

    Airlines with flights from Boston (BOS) to St. Louis (STL): American Airlines, Southwest Airlines, Iberia and United Airlines.

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

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 Boston to St. Louis. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Boston to St. Louis

Cheapest one-way flight price NZD 109
Cheapest round-trip ticket price NZD 397
Off-season for travel March
Peak season for travel July
Flight distance 1,670.94 km
Average flight time 3 hours 34 minutes
Popular airline Delta Air Lines

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