CA $215 Cheap Flights from St. Louis (STL) to Boston (BOS)

You can find cheap one-way flights from CA $215 and cheap return flights CA $403 STL to BOS with Expedia. One-way flights typically cost between CA$470 and CA$1,152. 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 STL to BOS ticket fares go up or down.

The cheapest months to fly from STL to BOS are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

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

To find a cheap flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Boston, MA (BOS-Logan Intl.), 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 airline to fly with from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Boston, MA (BOS-Logan Intl.) will differ from traveler to traveler. If you like to fly early, Southwest Airlines offers early morning flights. If price is the most important factor, Southwest Airlines typically offers the lowest fares. American Airlines offers the most daily flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Boston, MA (BOS-Logan Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

You'll find approximately 5 nonstop flights per day from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Boston, MA (BOS-Logan Intl.). For even more choices, look at flights that include layovers, as there are around 113 connecting flights per day. Some common connection points include O'Hare Intl. (ORD), Seattle - Tacoma Intl. (SEA), and Hartsfield-Jackson Atlanta Intl. (ATL).

The earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Boston, MA (BOS-Logan Intl.) typically departs around 5:00 AM local time. This service is operated by American Airlines. This is a seasonal service, active only in December. 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.

You'll typically find the most flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Boston, MA (BOS-Logan Intl.) on a Thursday, with around 68 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include American Airlines, United, and Southwest Airlines. Flight schedules are quite consistent throughout the week, with Thursday offering only slightly more options compared to other days.

The most popular departure times for flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Boston, MA (BOS-Logan Intl.) are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Delta and United, offer flights during this window. Many travellers prefer this time because it allows for an early arrival at your destination, giving you more time to enjoy your day in Boston.

A direct flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Boston, MA (BOS-Logan Intl.) typically takes around 2 hours 30 minutes, covering a distance of about 1,680 kilometers. If you opt for a one-stop flight, your journey will be longer, usually taking around 5 hours 18 minutes. Flights with two or more stops will extend your travel time further, to about 9 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.

You can fly business class or first class between STL and BOS. You can fly business class with Frontier Airlines and Delta.

First class cabins are available on:

• Alaska Airlines
• Spirit Airlines
• Delta
• United
• American Airlines

It's easy to earn miles on a St. Louis, MO (STL) to Boston, MA (BOS) 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 Boston from Lambert-St. Louis International Airport (STL), you can fly directly into Logan International Airport (BOS) which offers international flights and connections. Some flights may connect through major hubs like Seattle - Tacoma International Airport (SEA), Portland International Airport (PDX), or O'Hare International Airport (ORD) before reaching Boston. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from St. Louis, MO (STL) to Boston, MA (BOS) 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 St. Louis, MO (STL) to Boston, MA (BOS) 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 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Boston, MA (BOS-Logan Intl.) 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.