What are the cheapest airlines flying from Boston to Saint John round-trip?

According to our current data, Air Canada ($420), and United Airlines ($654) offers the cheapest pricing from Boston to Saint John.

What is the cheapest day to fly from Boston to Saint John?

Travelers seeking maximum savings on their Boston to Saint John flight should consider departing on Saturday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 day to fly round-trip from Boston to Saint John?

Users have found that flying from Boston to Saint John on a Monday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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.

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.

$420+ Flights from Boston to Saint John

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Cheap flight deals from Boston to St John

Round-trip from	$420 (Gotogate)

From Boston Logan Intl 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 July 28, 2025.

Wed 9/106:00 amBOS - YSJ

1 stop3h 49mAir Canada

Wed 9/175:55 amYSJ - BOS

1 stop6h 34mAir Canada

Deal found 7/27

$420

Wed 9/106:00 amBOS - YSJ

1 stop3h 49mMultiple Airlines

Wed 9/175:55 amYSJ - BOS

2 stops11h 33mMultiple Airlines

Deal found 7/27

$492

Sat 9/136:00 amBOS - YSJ

2 stops10h 46mUnited Airlines

Sun 9/145:55 amYSJ - BOS

2 stops11h 23mUnited Airlines

Deal found 7/27

$654

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 July 28, 2025.

Wed 9/106:00 amBOS - YSJ

1 stop3h 49mAir Canada

Wed 9/175:55 amYSJ - BOS

1 stop6h 34mAir Canada

Deal found 7/27

$420

Wed 9/106:00 amBOS - YSJ

1 stop3h 49mMultiple Airlines

Wed 9/175:55 amYSJ - BOS

2 stops11h 33mMultiple Airlines

Deal found 7/27

$492

Sat 9/136:00 amBOS - YSJ

2 stops10h 46mUnited Airlines

Sun 9/145:55 amYSJ - BOS

2 stops11h 23mUnited Airlines

Deal found 7/27

$654

Last-minute flights from Boston to St John
Discover last-minute flight deals from Boston to St John. Data last updated July 28, 2025 and is based on user searches.

Fri 8/17:04 pmBOS - YSJ

3 stops21h 41mMultiple Airlines

Sun 8/36:40 pmYSJ - BOS

1 stop16h 15mMultiple Airlines

Deal found 7/27

$1,296

Fri 8/225:50 amBOS - YSJ

1 stop4h 00mAir Canada

Tue 8/266:40 pmYSJ - BOS

1 stop4h 58mAir Canada

Deal found 7/26

$504

Fly from

Fly to

Route

Depart

Return

Price

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 9/10

6:00 am-10:49 am

1 stop3h 49m

Saint John

Wed 9/17

5:55 am-11:29 am

1 stop6h 34m

$420

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 9/10

6:00 am-10:49 am

1 stop3h 49m

Saint John

Wed 9/17

5:55 am-4:28 pm

2 stops11h 33m

$492

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sat 9/13

6:00 am-5:46 pm

2 stops10h 46m

Saint John

Sun 9/14

5:55 am-4:18 pm

2 stops11h 23m

$654

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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 United Airlines and 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.

United Airlines

7.4

Good

8,892 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,892 reviews

United Airlines

7.4

Good

8,892 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Air Canada

7.1

Good

9,813 reviews

United Airlines

7.4

Good

8,892 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

What are the cheapest airlines flying from Boston to Saint John round-trip?
According to our current data, Air Canada ($420), and United Airlines ($654) 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$574	FlexibilityNo cancel fee	On-time67%

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$420+ 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 9/10. 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

Round-trip from

Find 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 July 28, 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 July 28, 2025.

Cheapflights Fare Finder

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

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 United Airlines and 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.

What are the cheapest airlines flying 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 July 28, 2025.