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Find cheap one-way flights from Boston to Saint Mary's starting at NZD 1,612.

Whether you’re going for a one-way or round-trip to Saint Mary's, we’ve got you covered! Check out these different flight options from Boston below.

  • One way
  • Round-trip

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

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

Explore the best time to buy affordable tickets to Saint Mary's with our price trend chart, which predicts how flight prices will change in the coming weeks from previous data.

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

Cheapest airlines flights from Boston to Saint Mary's

We have a range of prices from different airlines providing flights from Boston to Saint Mary's. Check below for the journey which best suits your travel needs.

Alaska Airlines
From NZD 1,612
Delta Air Lines
From NZD 2,056
Hawaiian Airlines
From NZD 3,389

Find more flights and airlines

Find cheap flights from Boston to Saint Mary's by different airports

There are various non-direct routes from Boston to Saint Mary's which could be cheaper and faster! Check out these alternative options to see if they could work for your trip.

  • 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
    NZD 1,612
  • 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
    NZD 1,612
    Find More Flights

Frequently Asked Questions

  • 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 departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Boston (BOS) to Saint Mary's (KSM) cost?

    According to Trip.com's data, the lowest price is around NZD 1,706.

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

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.
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

Boston to Saint Mary's Flight Information

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