£124 Cheap Flights from Boston (BOS) to St. Louis (STL)

You can find cheap one-way flights from £124 and cheap return flights £255 BOS to STL with Expedia. One-way flights typically cost between £185 and £473. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when BOS to STL ticket fares go up or down.

If you're looking for the cheapest time to fly from Boston, MA (BOS-Logan Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.), September is typically your best bet. You can expect average return flights to be around £295 during this month. September often sees lower prices because the summer travel rush has ended, and demand starts to decrease. Other budget-friendly months for this route include February and August.

There are 2 airlines offering direct flights from Boston, MA (BOS-Logan Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.). Here are the carriers:
* Southwest Airlines operates 21 direct flights from Boston, MA (BOS-Logan Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) every week.
* American Airlines operates 17 direct flights from Boston, MA (BOS-Logan Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) every week.

To find a cheap flight from Boston, MA (BOS) to St. Louis, MO (STL), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best time to fly from Boston, MA (BOS-Logan Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) is typically August. This month offers a great balance—prices are reasonable at around £295 for a return flight, and you'll have plenty of flight options since it's a popular time to travel. If you're flexible, August gives you both affordable fares and excellent flight schedules to work with.

The earliest flight from Boston, MA (BOS-Logan Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) typically departs around 5:00 AM. This service is offered by American Airlines and Southern Airways. This is a seasonal service, active in June, July, August, and September. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

A direct flight from Boston, MA (BOS-Logan Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) typically takes around 3 hours 18 minutes, covering a distance of approximately 1,680 kilometers. If you opt for a flight with one stop, your journey will usually be longer, taking about 5 hours 48 minutes. Flights with two or more stops will extend your travel time further, to around 8 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.

Select the "Business class" and "First class" filters when looking for Boston, MA (BOS) to St. Louis, MO (STL) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.

It's easy to earn miles on a Boston, MA (BOS-Logan Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to St. Louis from Logan International Airport (BOS), you can fly directly into Lambert-St. Louis International Airport (STL). Some flights may connect through major hubs like Portland International Airport (PDX), Baltimore Washington International Thurgood Marshall Airport (BWI), or Seattle - Tacoma International Airport (SEA) before reaching St. Louis. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Boston, MA (BOS-Logan Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Boston, MA (BOS-Logan Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Boston, MA (BOS) to St. Louis, MO (STL) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.