The cheapest times to fly from BOS to BWI are

  • July 30th to February 25th (except the weeks of November 19th, November 26th, December 17th, and February 12th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from BOS to BWI is early December. Prices can be as high as $477 for Sunday flights during mid April, or as low as $134 for Wednesday flights around early December.


When to Fly to Baltimore

Flying from Boston, MA (BOS) to Baltimore, MD (BWI) will usually cost between $143 to $317 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early December with an average ticket price of $146. Due to high demand the most expensive time to fly is mid April, with an average price of $327. Planning your trip to low-cost times can easily save you $181 on economy flights and even more on first-class flights. Generally, any price below $193 can be considered a good price for a round-trip BOS to BWI flight.

See below for a graph of average weekly prices for the BOS to BWI route. All prices are for round-trip tickets in USD.

BOS to BWI Flight Prices

Compared to other flights, the BOS to BWI flight is much cheaper than the average and costs much less than the average flight leaving from Boston. The average price per mile (for a direct flight) is $0.32, which is in the normal range for a flight.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $91 (35%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $168. Return trip prices are from the BWI to BOS flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from BOS to BWI can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 39 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from BOS to BWI while comparing.

Destination alternative #1: Philadelphia International Airport (PHL) in Philadelphia, PA

  • 90 miles (145 km) away from BWI
  • Usually 29.02% less expensive than BWI
  • Nonstop flights available

See BOS to PHL flights

Destination alternative #2: Ronald Reagan Washington National Airport (DCA) in Washington, DC

  • 30 miles (48 km) away from BWI
  • Usually 16.32% less expensive than BWI
  • Nonstop flights available

See BOS to DCA flights

Destination alternative #3: Williamsport Regional Airport (IPT) in Williamsport, PA

  • 143 miles (230 km) away from BWI
  • Usually 9.84% less expensive than BWI
  • 1-layover flights available

See BOS to IPT flights

Destination alternative #4: Richmond International Airport (RIC) in Richmond, VA

  • 121 miles (195 km) away from BWI
  • Usually 5.96% less expensive than BWI
  • Nonstop flights available

See BOS to RIC flights

Destination alternative #5: Salisbury-Ocean City/Wicomico Regional Airport (SBY) in Salisbury, MD

  • 85 miles (137 km) away from BWI
  • Usually 3.11% less expensive than BWI
  • 1-layover flights available

See BOS to SBY flights


Flight Questions Answered

Still have questions about flying from BOS to BWI? We’ve got answers.

Which airlines fly this route?

You can find 10 major airlines flying this route most often: American, Cape Air, China Eastern, Delta, Frontier, JetBlue, Qantas, Southwest, Spirit, United, and potentially more during busy seasons.

How far away is it from Baltimore/Washington International Thurgood Marshall Airport to Logan International Airport?

The distance between the two airports is roughly 369 miles or 594 kilometers.

How long does it take to fly from BOS to BWI?

The real-world flight time for a nonstop BOS to BWI flight is about 1 hour 39 minutes.

How many flights go between Boston, MA and Baltimore, MD?

It depends on the day of the week and the date, but a typical day might have around 79 available flights from BOS to BWI.


Airport Location Info


Departing Airport

Origination code BOS
Origination airport name Logan International Airport
City Boston, MA
Country the United States
Latitude 42.4
Longitude -71

Return Airport

Destination code BWI
Destination airport name Baltimore/Washington International Thurgood Marshall Airport
City Baltimore, MD
Country the United States
Latitude 39.2
Longitude -76.7


Late and Early Flight Data

Flights from BOS to BWI tend to depart as late as the average flight. According to our recently updated data, 29% of flights departed 5 or more minutes late, and 19% of flights left 5 or more minutes early. On average you can expect to leave BWI heading for BOS about 18 minutes late. This does significantly impact arrival time, as the average landing time in Baltimore, MD is about 8 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • Southwest: 14 minutes late
  • JetBlue: 17 minutes late
  • Spirit: 35 minutes late
  • Some airlines not reporting


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.