S$ 1,237 Cheap Flights from Boston to Saint Mary's (BOS-KSM)

Cheap Flights from Boston to Saint Mary's

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Cheap Flights from Boston to Saint Mary's starting at S$ 1,237

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.

Cheapest time to fly from Boston to Saint Mary's

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Saint Mary's from Boston have changed and are set to move below.

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

Cheapest Airlines flying from Boston to Saint Mary's

Which airline provides the cheapest flights from Boston to Saint Mary's? Discover the option that best suits your travel needs before embarking on your journey.

Alaska Airlines

From S$ 1,237

Delta Air Lines

From S$ 1,578

Hawaiian Airlines

From S$ 2,600

Find more flights and airlines

Alternative Routes from Boston to Saint Mary's

Did you know that you can save money and time on an alternative route from Boston to Saint Mary's? Check out some of the different available routes below.

Cheapest
BOS
17:55
23h 45m
2 transfer
KSM
13:40
General Edward Lawrence Logan International Airport - Saint Mary's Airport
Tue, Jan 7Alaska Airlines
S$ 1,237
BOS
17:55
23h 45m
2 transfer
KSM
13:40
General Edward Lawrence Logan International Airport - Saint Mary's Airport
Tue, Jan 7Alaska Airlines
S$ 1,237
Find More Flights

Frequently Asked Questions

When to buy 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 is a flight from Boston (BOS) to Saint Mary's (KSM) cost?
According to Trip.com's data, the lowest price is around S$ 1,309.
How many airports in Saint Mary's?
There are 1 airports near Saint Mary's: Saint Mary's Airport.

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.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com