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Cheap flights from Boston to Saint John from C$ 316

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YSJ
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Boston to St John

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to St John (YSJ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 September 2025.

Round-trip from

C$ 704

One-way from

C$ 316
Air Canada
  • Air Canada
  • 26/10-2/11
  • 2 total stops
  • 8h 42m total
  • Boston to Saint John
Search Deals
8/10
  • 8/10
  • 2 total stops
  • 42h 00m total
  • Boston to Saint John
Search Deals

Find flight deals from Boston to St John

Cheapest flights from Boston to St John
Explore the most affordable flight options available from Boston to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Sun 26/105:30 a.m.BOS - YSJ
1 stop4h 45mAir Canada
Sun 2/1111:55 a.m.YSJ - BOS
1 stop3h 57mAir Canada
Deal found 11/9C$ 704
Sat 25/106:00 a.m.BOS - YSJ
1 stop3h 49mAir Canada
Sat 1/1111:55 a.m.YSJ - BOS
1 stop3h 57mAir Canada
Deal found 10/9C$ 834
Sun 26/107:05 a.m.BOS - YSJ
3 stops27h 10mMultiple Airlines
Sun 2/1111:55 a.m.YSJ - BOS
1 stop3h 57mMultiple Airlines
Deal found 11/9C$ 851

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to St John that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 11 September 2025.
Use the filters below to find and compare flights from Boston to Saint John that are best for you.

Fly from

Boston

Fly to

St John

Route

Depart

Return

Price

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sun 26/10

5:30 a.m.-11:15 a.m.

1 stop4h 45m

Saint John

Sun 2/11

11:55 a.m.-2:52 p.m.

1 stop3h 57m

C$ 704

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sat 25/10

6:00 a.m.-10:49 a.m.

1 stop3h 49m

Saint John

Sat 1/11

11:55 a.m.-2:52 p.m.

1 stop3h 57m

C$ 834

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sun 26/10

7:05 a.m.-11:15 a.m.

3 stops27h 10m

Saint John

Sun 2/11

11:55 a.m.-2:52 p.m.

1 stop3h 57m

C$ 851

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 8/10

3:00 p.m.-10:00 a.m.

2 stops42h 00m

C$ 316

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sat 11/10

3:50 p.m.-10:00 a.m.

3 stops41h 10m

C$ 342

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 7/10

6:16 a.m.-3:45 p.m.

3 stops32h 29m

C$ 353

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sat 11/10

6:00 a.m.-10:49 a.m.

1 stop3h 49m

C$ 380

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 8/10

4:45 p.m.-11:51 p.m.

1 stop6h 06m

C$ 387

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 7/10

4:45 p.m.-11:51 p.m.

1 stop6h 06m

C$ 387

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 6/10

6:16 a.m.-3:45 p.m.

3 stops32h 29m

C$ 392

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 13 results
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Best time to book a flight from Boston to St John

Have a flexible travel schedule? Discover the best time to fly to St John from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Boston to St John. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Saint John?

    Air Canada can get you from Boston to Saint John in just under 4h 45m. Your travel time can differ by up to . The distance between Boston and Saint John is about 526 km.

  • Can I find deals for flights from Boston to St John that include hotel bookings?

    Yes. In addition to deals on Boston to St John flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to St John?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to St John.

  • Can I find deals for business class flights from Boston to St John?

    Yes. Cheapflights offers flight deals from Boston to St John by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Saint John?

    Currently, May is the cheapest month in which you can book a flight from Boston to Saint John (average of C$ 213). Flying from Boston to Saint John in December is currently the most expensive (average of C$ 461). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Boston to St John

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Boston to St John?

Cheapflights makes it easy to find Boston to St John flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Boston to St John?

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Can Cheapflights find flights from Boston to St John with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston to St John flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Boston to St John become cheaper?

Yes! Start tracking prices for Boston to St John flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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