$49 Cheap Flights from Baltimore (BWI) to Boston (BOS)

You can find cheap one-way flights from $49 and cheap return flights from $94 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Boston, MA (BOS-Logan Intl.) with Expedia. One-way flights usually range from $77 to $920, and return flights typically cost between $259 and $2783. 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 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Boston, MA (BOS-Logan Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

March is the cheapest month to fly from Baltimore (BWI) to Boston (BOS), with average round-trip fares around $220. This price is about 15% lower than the average fare throughout the year, as travel demand tends to be lower in early spring. Other economical months to fly from Baltimore to Boston include April and June.*Averages based on flights available on Expedia in the last year.

There are 2 airlines offering direct flights from BWI to BOS:

• Delta operates around 22 direct flights from BWI to BOS every week
• Spirit Airlines operates around 13 direct flights from BWI to BOS every week

Delta is one of the cheapest airlines offering nonstop flights from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Boston, MA (BOS-Logan Intl.), with round-trip tickets starting from around $183. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.

The best time to fly from Baltimore, MD (BWI) to Boston, MA (BOS) is in March or April, with average return flight prices around $220. These months are ideal for balancing cost and travel experience, making your trip more enjoyable.*Prices based on flights available on Expedia in the last year.

First class seats are offered on the BWI to BOS route. First class cabins are available on:

• American Airlines
• United Airlines
• Delta Air Lines
• Spirit Airlines

A direct, return business class ticket from Baltimore, MD (BWI) to Boston, MA (BOS) typically costs between $545 - $845. A non-stop, one-way business class flight is usually around $378 - $578 per adult. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Boston, MA (BOS-Logan Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.

It's easy to earn miles on a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Boston, MA (BOS-Logan 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.