HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St John

$289+ 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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YSJ
May 28 — Jun 41
Thu 5/28
Thu 6/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to St John with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:35 pm
BOS
-
YSJ
1 stop14h 25m
Multiple Airlines
Tue 6/1611:30 am
YSJ
-
BOS
2 stops8h 35m
Multiple Airlines
Deal found 4/25$510
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:05 am
BOS
-
YSJ
1 stop22h 55m
Multiple Airlines
Thu 6/1811:30 am
YSJ
-
BOS
2 stops31h 05m
Multiple Airlines
Deal found 4/27$538
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:30 am
BOS
-
YSJ
2 stops31h 00m
Multiple Airlines
Wed 7/110:45 am
YSJ
-
BOS
1 stop7h 50m
Multiple Airlines
Deal found 4/24$550
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:35 pm
BOS
-
YSJ
2 stops20h 10m
Multiple Airlines
Mon 6/1510:45 am
YSJ
-
BOS
1 stop23h 20m
Multiple Airlines
Deal found 4/23$556
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:25 pm
BOS
-
YSJ
1 stop12h 35m
Multiple Airlines
Wed 8/1211:30 am
YSJ
-
BOS
2 stops23h 55m
Multiple Airlines
Deal found 4/26$572
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:30 pm
BOS
-
YSJ
1 stop15h 30m
Multiple Airlines
Thu 8/1311:30 am
YSJ
-
BOS
2 stops13h 02m
Multiple Airlines
Deal found 4/26$629
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:25 pm
BOS
-
YSJ
1 stop12h 35m
Multiple Airlines
Tue 8/1111:30 am
YSJ
-
BOS
2 stops28h 11m
Multiple Airlines
Deal found 4/26$630

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 April 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$510
(Kiwi.com)

One-way from

$289
(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
Search Deals
One-way flight from Boston Logan Intl to Saint John
Search Deals

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 April 28, 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

Tue 6/9

6:35 pm-10:00 am

1 stop14h 25m

Saint John

Tue 6/16

11:30 am-7:05 pm

2 stops8h 35m

$529

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 6/11

5:45 am-10:00 am

2 stops27h 15m

Saint John

Thu 6/18

11:30 am-7:41 pm

3 stops9h 11m

$607

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 6/24

10:40 am-3:55 pm

1 stop4h 15m

Saint John

Wed 7/1

4:30 pm-9:27 pm

1 stop5h 57m

$646
Quickest round-trip

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 6/11

10:35 am-3:50 pm

1 stop4h 15m

Saint John

Thu 6/18

4:35 pm-9:27 pm

1 stop5h 52m

$646

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 6/3

10:35 am-3:50 pm

1 stop4h 15m

Saint John

Fri 6/5

4:30 pm-9:27 pm

1 stop5h 57m

$646

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Fri 6/12

10:35 am-3:50 pm

1 stop4h 15m

Saint John

Fri 6/19

4:35 pm-9:27 pm

1 stop5h 52m

$657

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 8/5

6:00 am-3:50 pm

2 stops8h 50m

Saint John

Tue 8/11

4:30 pm-9:27 pm

1 stop5h 57m

$660

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sun 5/24

5:10 am-3:40 pm

2 stops9h 30m

Saint John

Wed 5/27

5:35 am-9:49 am

1 stop5h 14m

$665

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 7/27

6:00 am-3:50 pm

2 stops8h 50m

Saint John

Fri 7/31

5:00 am-11:52 am

1 stop7h 52m

$665
Cheapest one-way
Quickest one-way

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 6/8

10:35 am-3:50 pm

1 stop4h 15m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 13 resultsSorted by cheapest first
1
2
  • 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 April 28, 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
10,975 reviews

Overall

7.1

Food

6.3

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Crew

7.8

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
10,975 reviews
Air Canada
7.1
Good
10,975 reviews

Overall

7.1

Food

6.3

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Crew

7.8

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.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$235Average$608FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.