How long is the flight from Boston to Saint John?

Airlines like Air Canada fly from Boston to Saint John in about 4h 25m. 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.

In terms of precipitation, rainfall in Saint John ranges from 3.2 - 5.3 inches per month. November is typically the wettest month, when rainfall can reach 5.3 in. August is typically the driest time to visit Saint John when rainfall is around 3.2 in.

If weather is an important factor for your trip to Saint John, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.6 F).

What is the cheapest time of day to fly from BOS to YSJ?

When flying from Boston to Saint John, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Boston-Saint John flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Saint John flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$641+ Flights from Boston to Saint John

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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 December 12, 2025.

Tue 12/2312:20 pmBOS - YSJ

2 stops21h 19mUnited Airlines

Sat 1/34:15 pmYSJ - BOS

1 stop3h 57mUnited Airlines

Deal found 12/10

$1,196

Tue 12/236:55 pmBOS - YSJ

1 stop14h 44mAir Canada

Sat 1/34:15 pmYSJ - BOS

1 stop3h 57mAir Canada

Deal found 12/10

$1,412

Best flights from Boston to St John
Discover carefully curated flight deals from Boston to St John that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Mon 1/1910:15 amBOS - YSJ

1 stop4h 25mAir Canada

Fri 1/234:15 pmYSJ - BOS

1 stop4h 27mAir Canada

Deal found 12/9

$641

Sun 5/2410:35 amBOS - YSJ

1 stop4h 05mAir Canada

Sun 5/315:35 amYSJ - BOS

1 stop5h 19mAir Canada

Deal found 12/9

$644

Sat 1/246:15 amBOS - YSJ

2 stops8h 20mAir Canada

Sat 1/314:15 pmYSJ - BOS

1 stop4h 27mAir Canada

Deal found 12/10

$653

Sun 1/256:15 amBOS - YSJ

2 stops8h 25mAir Canada

Sun 2/14:15 pmYSJ - BOS

1 stop4h 27mAir Canada

Deal found 12/11

$653

Last-minute flights from Boston to St John
Discover last-minute flight deals from Boston to St John. Data last updated December 12, 2025 and is based on user searches.

Tue 12/2312:20 pmBOS - YSJ

2 stops21h 19mUnited Airlines

Sat 1/34:15 pmYSJ - BOS

1 stop3h 57mUnited Airlines

Deal found 12/10

$1,196

Tue 12/236:55 pmBOS - YSJ

1 stop14h 44mAir Canada

Sat 1/34:15 pmYSJ - BOS

1 stop3h 57mAir Canada

Deal found 12/10

$1,412

Mon 1/1910:15 amBOS - YSJ

1 stop4h 25mAir Canada

Fri 1/234:15 pmYSJ - BOS

1 stop4h 27mAir Canada

Deal found 12/11

$641

Sat 1/241:00 pmBOS - YSJ

1 stop9h 29mAir Canada

Sat 1/314:15 pmYSJ - BOS

1 stop4h 27mAir Canada

Deal found 12/10

$668

Find flight deals from Boston to St John

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$641 (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

Fly from

Fly to

Route

Depart

Return

Price

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 1/19

10:15 am-3:40 pm

1 stop4h 25m

Saint John

Fri 1/23

4:15 pm-7:42 pm

1 stop4h 27m

$641

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sun 5/24

10:35 am-3:40 pm

1 stop4h 05m

Saint John

Sun 5/31

5:35 am-9:54 am

1 stop5h 19m

$644

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sat 1/24

6:15 am-3:35 pm

2 stops8h 20m

Saint John

Sat 1/31

4:15 pm-7:42 pm

1 stop4h 27m

$653

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sun 1/25

6:15 am-3:40 pm

2 stops8h 25m

Saint John

Sun 2/1

4:15 pm-7:42 pm

1 stop4h 27m

$653

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Compare providers for flights from Boston to St John

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to St John in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Boston-Saint John flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Saint John flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 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

10,516 reviews

Reviews

1 / 20

2.0

Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

Air Canada

7.1

Good

10,516 reviews

Air Canada

7.1

Good

10,516 reviews

Reviews

1 / 20

2.0

Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

Related info for your journey

How long is the flight from Boston to Saint John?
Airlines like Air Canada fly from Boston to Saint John in about 4h 25m. 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Boston to St John

Boston to Moncton flights

Top airline flying from Boston to St John

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$235	Average$608	FlexibilityNo cancel fee	On-time67%

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$641+ Cheap flights from Boston (BOS) to Saint John (YSJ)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to St John with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Boston to St John

Cheapest flights from Boston to St JohnExplore 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 December 12, 2025.

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 December 12, 2025.

Find flight deals from Boston to St John

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Saint John that are best for you.

Compare providers for flights from Boston to St John

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to St John in December.

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.

Reviews of airlines servicing St John

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.

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?

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

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

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

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

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.

Top airline flying from Boston to St John

100% Free

Book with Flexibility

Travel Smart

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 December 12, 2025.