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St John

$278+ Cheap flights from Boston (BOS) to Saint John (YSJ)

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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YSJ
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
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Cheap 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 March 10, 2026.

This Air Canada deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/610:35 am
BOS
-
YSJ
1 stop4h 15m
Air Canada
Wed 6/104:30 pm
YSJ
-
BOS
1 stop5h 57m
Air Canada
Deal found 3/5$571
This Air Canada deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:30 am
BOS
-
YSJ
1 stop4h 45m
Air Canada
Tue 4/285:35 am
YSJ
-
BOS
1 stop7h 36m
Air Canada
Deal found 3/6$625
This Air Canada deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:30 am
BOS
-
YSJ
1 stop4h 40m
Air Canada
Thu 4/3011:55 am
YSJ
-
BOS
1 stop3h 57m
Air Canada
Deal found 3/9$631
This Air Canada deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:00 pm
BOS
-
YSJ
1 stop5h 52m
Air Canada
Mon 5/184:30 pm
YSJ
-
BOS
1 stop5h 57m
Air Canada
Deal found 3/10$637
This United Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:00 am
BOS
-
YSJ
2 stops8h 50m
United Airlines
Tue 6/164:30 pm
YSJ
-
BOS
2 stops8h 29m
United Airlines
Deal found 3/5$693

Find 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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$571
(Air Canada)

One-way from

$278
(Air Canada)
Provider with most accurate pricing for Boston Logan Intl-Saint John flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Saint John flights.
Search Deals
From Boston Logan Intl to Saint John
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One-way flight from Boston Logan Intl to Saint John
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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 2,558,603 searches. Data last updated March 10, 2026.
Use the filters below to find and compare flights from Boston to Saint John that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sat 6/6

10:35 am-3:50 pm

1 stop4h 15m

Saint John

Wed 6/10

4:30 pm-9:27 pm

1 stop5h 57m

$571
Quickest round-trip

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 4/23

5:30 am-11:10 am

1 stop4h 40m

Saint John

Thu 4/30

11:55 am-2:52 pm

1 stop3h 57m

$631

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Fri 5/15

5:00 pm-11:52 pm

1 stop5h 52m

Saint John

Mon 5/18

4:30 pm-9:27 pm

1 stop5h 57m

$637

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 4/21

5:30 am-11:15 am

1 stop4h 45m

Saint John

Tue 4/28

5:35 am-12:11 pm

1 stop7h 36m

$722

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sat 6/6

7:30 am-3:50 pm

2 stops7h 20m

Saint John

Wed 6/10

4:30 pm-11:59 pm

2 stops8h 29m

$742
Cheapest one-way
Quickest one-way

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 4/21

5:30 am-11:15 am

1 stop4h 45m

$278

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 4/21

7:30 pm-11:15 am

2 stops14h 45m

$371

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 4/21

5:18 pm-3:45 pm

3 stops21h 27m

$403

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Boston-Saint John flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Saint John flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Saint John flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Saint John flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Saint John flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Reviews of airlines servicing St John

Get insights into the airlines that provide service to St John. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St John. Reviews last updated March 10, 2026.
Get a feel of what it's like to fly with Air Canada from Boston to Saint John by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,800 reviews

Boarding

7.3

Comfort

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Dr vandana,Feb 2026

SFO - YYC

It was good, the lounge facilities can be better with some vegetarian options. Overall good
Air Canada
7.1
Good
10,800 reviews
Air Canada
7.1
Good
10,800 reviews

Boarding

7.3

Comfort

7.1

Crew

7.8

Entertainment

6.8

Food

6.3

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Dr vandana,Feb 2026

SFO - YYC

It was good, the lounge facilities can be better with some vegetarian options. Overall good

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?

    Airlines like Air Canada fly from Boston to Saint John in about 4h 15m. The time it takes to get you to your destination can typically vary by up to . Boston and Saint John are separated by a distance of 327 mi.

  • What is the cheapest airline to fly from Boston to Saint John round-trip?

    According to our current data, Air Canada ($235), offers the cheapest pricing from Boston to Saint John.

  • 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.

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.
Boston to Moncton flights

Top airline flying from Boston to St John

Discover the top airline that operate flights from Boston to St John. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$235Average$574FlexibilityNo cancel feeOn-time67%

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