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Flights from Boston to Saint Mary's
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Find Boston to Saint Mary's flights starting at CAD 1,312.

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • BOS17:55
        23h 45m
        2 stops
        KSM13:40
        Tue, Jan 7|Boston - Saint Mary's|Alaska Airlines
        CAD 1,312CAD 3,170
        59% OFF
        59% OFF
        CAD 3,170CAD 1,312

        Choose Alaska Airlines flights from Boston to Saint Mary's. The one-way connecting flight with Alaska Airlines departs from General Edward Lawrence Logan International Airport on Tue, Jan 7, arriving at Saint Mary's Airport. One-way Prices start from CAD 1,312 including taxes and charges.

      • BOS07:10
        34h 30m
        2 stops
        KSM13:40
        Tue, Jan 7|Boston - Saint Mary's|Delta Air Lines
        CAD 1,673CAD 3,170
        47% OFF
        47% OFF
        CAD 3,170CAD 1,673

        Choose Delta Air Lines flights from Boston to Saint Mary's. The one-way connecting flight with Delta Air Lines departs from General Edward Lawrence Logan International Airport on Tue, Jan 7, arriving at Saint Mary's Airport. One-way Prices start from CAD 1,673 including taxes and charges.

      • BOS08:00
        33h 40m
        2 stops
        KSM13:40
        Tue, Jan 7|Boston - Saint Mary's|Hawaiian Airlines
        CAD 2,758CAD 3,170
        13% OFF
        13% OFF
        CAD 3,170CAD 2,758

        Choose Hawaiian Airlines flights from Boston to Saint Mary's. The one-way connecting flight with Hawaiian Airlines departs from General Edward Lawrence Logan International Airport on Tue, Jan 7, arriving at Saint Mary's Airport. One-way Prices start from CAD 2,758 including taxes and charges.

      • BOS01:00 pm
        3h 5m
        Nonstop
        KSM02:00 pm
        Sat, Dec 28|Boston - Saint Mary's|Alaska Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Boston to Saint Mary's?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find Cheapest Airlines Flying from Boston to Saint Mary's

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Alaska Airlines
From CAD 1,312
Delta Air Lines
From CAD 1,673
Hawaiian Airlines
From CAD 2,758

Find more flights and airlines

Alternative Routes for Boston to Saint Mary's Flights

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Boston to Saint Mary's.

  • Cheapest
    Alaska Airlines
    BOS
    17:55
    23h 45m
    2 transfer
    KSM
    13:40
    General Edward Lawrence Logan International Airport - Saint Mary's Airport
    Tue, Jan 7Alaska Airlines
    CAD 1,312
  • Alaska Airlines
    BOS
    17:55
    23h 45m
    2 transfer
    KSM
    13:40
    General Edward Lawrence Logan International Airport - Saint Mary's Airport
    Tue, Jan 7Alaska Airlines
    CAD 1,312
    Find More Flights

FAQ

  • When are flight tickets from Boston (BOS) to Saint Mary's (KSM) the cheapest?

    Airlines adjust prices for flights from Boston to Saint Mary's based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much are flights from Boston (BOS) to Saint Mary's (KSM) cost?

    According to Trip.com's data, the lowest price is around CAD 1,388.

  • How many airports in Saint Mary's (KSM)?

    There are 1 airport(s) in Saint Mary's (KSM): Saint Mary's Airport.

How to find a cheap flight from Boston to Saint Mary's

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Boston to Saint Mary's. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information for Boston to Saint Mary's Flights

Off-season travel monthJanuary
Peak season for travelSeptember
Flight distance6,054.43km
Popular airlineAlaska Airlines

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