The cheapest times to fly from BWI to YSJ are

  • January 1st to April 1st (except the weeks of February 19th, March 5th, and March 19th)
  • August 13th to December 16th (except the weeks of August 20th and October 1st)

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 BWI to YSJ is early September. Prices can be as high as $957 for Sunday flights during early August, or as low as $587 for Wednesday flights around early September.


When to Fly to Saint John

Flying from Baltimore, MD (BWI) to Saint John (YSJ) will usually cost between $606 to $754 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early September with an average ticket price of $594. Due to high demand the most expensive time to fly is early August, with an average price of $799. Planning your trip to low-cost times can easily save you $205 on economy flights and even more on first-class flights. Generally, any price below $662 can be considered a good price for a round-trip BWI to YSJ flight.

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

BWI to YSJ Flight Prices

Compared to other flights, the BWI to YSJ flight is cheaper than the average and costs much less than the average flight leaving from Baltimore. The average price per mile (for a direct flight) is $0.59, which is above average.


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 $42 (6%) 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 $651. Return trip prices are from the YSJ to BWI 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 BWI to YSJ can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 2 hour 14 minutes may not 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 not usually a nonstop flight from BWI to YSJ while comparing.

Destination alternative #1: Bangor International Airport (BGR) in Bangor, ME

  • 148 miles (238 km) away from YSJ
  • Usually 42.75% less expensive than YSJ
  • 1-layover flights available

See BWI to BGR flights

Destination alternative #2: Halifax Stanfield International Airport (YHZ) in Halifax

  • 120 miles (193 km) away from YSJ
  • Usually 26.21% less expensive than YSJ
  • 1-layover flights available

See BWI to YHZ flights

Destination alternative #3: Greater Moncton Romeo Leblanc International Airport (YQM) in Moncton

  • 80 miles (129 km) away from YSJ
  • Usually 19.41% less expensive than YSJ
  • 1-layover flights available

See BWI to YQM flights

Destination alternative #4: Hancock County-Bar Harbor Airport (BHB) in Bar Harbor, ME

  • 135 miles (217 km) away from YSJ
  • Usually 18.73% less expensive than YSJ
  • 1-layover flights available

See BWI to BHB flights

Destination alternative #5: Fredericton International Airport (YFC) in Fredericton

  • 49 miles (79 km) away from YSJ
  • Usually 4.61% less expensive than YSJ
  • 1-layover flights available

See BWI to YFC flights

Destination alternative #6: Charlottetown Airport (YYG) in Charlottetown

  • 150 miles (241 km) away from YSJ
  • Usually 14.80% less expensive than YSJ
  • 1-layover flights available

See BWI to YYG flights


Flight Hacking BWI to YSJ

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from BWI to YSJ — but Champion Traveler does!

Hack #1: Boston, MA (BWI > BOS > YSJ)

  • Price for both tickets: $558
  • Average savings: $104 (15.71%)

See BWI to BOS flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 2 major airlines flying this route most often: Air Canada, United, and potentially more during busy seasons.

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

The distance between the two airports is roughly 694 miles or 1117 kilometers.

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

The real-world flight time for a nonstop BWI to YSJ flight is about 2 hour 14 minutes.

How many flights go between Baltimore, MD and Saint John?

It depends on the day of the week and the date, but a typical day might have around 26 available flights from BWI to YSJ.


Airport Location Info


Departing Airport

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

Return Airport

Destination code YSJ
Destination airport name Saint John Airport
City Saint John
Country Canada
Latitude 45.3
Longitude -65.9


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.