What is the cheapest flight from Boston to Saint John?

In the last 3 days, the lowest price for a flight from Boston to Saint John was $198 for a one-way ticket and $541 for a round-trip. Visit our flight page for the latest deals!>/a>

Do I need a passport to fly between Boston and Saint John?

Yes Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Boston to Saint John?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from Boston to Saint John?

Star Alliance is the only airline alliance operating flights between Boston and Saint John.

How does KAYAK find such low prices on flights from Boston to Saint John?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Saint John. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Saint John?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint John from Boston is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Boston to Saint John?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Saint John with an airline and back to Boston with another airline. Booking your flights between Boston and YSJ can sometimes prove cheaper using this method. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Saint John?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Saint John from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

What are the most popular airlines flying to Saint John?

The most popular airline among KAYAK users flying to Saint John is Air Canada, followed by Porter Airlines.

Cheap Flights from Boston to Saint John | KAYAK

BOS - YSJ

KAYAK searches hundreds of travel sites at once for deals on flights to Saint John

...and more

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41’299’237 searches in the past 7 days on KAYAK

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Cheapest round-trip

$541

Multiple Airlines

Wed 6/3Mon 6/8

BOS - YSJ • 2 stops

Cheapest one-way

$198

Multiple Airlines

Thu 5/28

BOS - YSJ • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Boston and Saint John. You'll need at least 1 connection.

Insights

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Saint John!

Flight Deals

Cheap Flights from Boston to Saint John (BOS-YSJ)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Boston to Saint John

Wed, Jun 3 - Mon, Jun 8

6:35 pm - 11:30 am

BOS

YSJ

15h 55m

2 stops

10:45 am - 5:35 pm

YSJ

BOS

7h 50m

1 stop

$541Multiple Airlines

Thu, May 28 - Thu, Jun 4

6:35 pm - 10:00 am

BOS

YSJ

14h 25m

1 stop

12:00 pm - 11:29 pm

YSJ

BOS

12h 29m

2 stops

$563Multiple Airlines

Sun, Jun 7 - Thu, Jun 11

6:35 pm - 10:00 am

BOS

YSJ

14h 25m

1 stop

12:00 pm - 11:54 pm

YSJ

BOS

12h 54m

2 stops

$569Multiple Airlines

Thu, May 28 - Thu, Jun 4

6:35 pm - 10:00 am

BOS

YSJ

14h 25m

1 stop

12:00 pm - 9:42 pm

YSJ

BOS

34h 42m

3 stops

$571Multiple Airlines

Thu, May 28 - Thu, Jun 4

4:45 pm - 10:00 am

BOS

YSJ

16h 15m

2 stops

12:00 pm - 9:42 pm

YSJ

BOS

34h 42m

3 stops

$581Multiple Airlines

Mon, Jun 1 - Mon, Jun 8

9:04 pm - 3:45 pm

BOS

YSJ

41h 41m

2 stops

10:45 am - 5:35 pm

YSJ

BOS

7h 50m

1 stop

$599Multiple Airlines

Sun, Jun 7 - Thu, Jun 11

6:35 pm - 10:00 am

BOS

YSJ

14h 25m

1 stop

12:00 pm - 7:41 pm

YSJ

BOS

8h 41m

3 stops

$608Multiple Airlines

Wed, Jun 3 - Mon, Jun 8

9:20 am - 3:45 pm

BOS

YSJ

29h 25m

3 stops

10:45 am - 5:35 pm

YSJ

BOS

7h 50m

1 stop

$610Multiple Airlines

Mon, Jun 1 - Mon, Jun 8

3:25 pm - 3:45 pm

BOS

YSJ

23h 20m

3 stops

10:45 am - 5:35 pm

YSJ

BOS

7h 50m

1 stop

$640Multiple Airlines

Mon, Jun 1 - Mon, Jun 8

10:35 am - 3:50 pm

BOS

YSJ

4h 15m

1 stop

4:30 pm - 9:27 pm

YSJ

BOS

5h 57m

1 stop

$646Air Canada

Booking Insights

Cheapest flight	$198

Flight from Boston to Saint John

When to book flights from Boston to Saint John

Are your dates flexible? Find out the best times to travel from Boston to Saint John based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What is the cheapest flight from Boston to Saint John?
In the last 3 days, the lowest price for a flight from Boston to Saint John was $198 for a one-way ticket and $541 for a round-trip.
Do I need a passport to fly between Boston and Saint John?
Yes
Which aircraft models fly most regularly from Boston to Saint John?
We unfortunately don’t have that data for this specific route.
Which airline alliances offer flights from Boston to Saint John?
Star Alliance is the only airline alliance operating flights between Boston and Saint John.
How does KAYAK find such low prices on flights from Boston to Saint John?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Saint John.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Saint John?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint John from Boston is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Boston to Saint John?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Saint John with an airline and back to Boston with another airline. Booking your flights between Boston and YSJ can sometimes prove cheaper using this method.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Saint John?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Saint John from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boston to Saint John

Need help choosing which airline to fly with from Boston to Saint John? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.

7.1

Air CanadaOverall score based on 10935 reviews

7.8Crew

6.8Entertainment

7.1Comfort

6.3Food

7.3Boarding

Airline reviews

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

10.0 ExcellentVincent, Apr 2026

SEA - YVR

Read more Air Canada reviews

All good……but luggage didn’t make it on the airplane. Had to wait 3 days. Was a bummer.

Small suitcase used for carryon the last time was refused by boarding crew this time. Appears to be at the discretion and mood of the person on the day. Flight was only half booked, there would have been no problem with space.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

Flight home was delayed multiple times, did not get home until 2am

the check-in lady at ORD was extremely rude and unprofessional. very disappointed as it was supposed to be a celebration for my wife's birthday and it really put a damper on things. if i wanted to be treated like trash, i would have flown Economy! (as opposed to business class)

My original flight was cancelled and then rebooked four hours later on a recovery flight, but I was checked in as stanby and had no seats so as a family of four we were concerned about not being seated altogether. Our flight then got delayed by another 1.5 hours and when seats were assigned at the gate, three of the four of us were together and we could get my wife closer, they offered no assistance.

I bought a ticket from Kayak. When I got to the airport, the was no ticket. I had to pay 5X to get to my destination. No response received from Kayak. I will NEVER use them again.

My wallet was stolen while I was sleeping on the plane.

Good boarding but extremely cold temperature in both flights (60 F!).

The whole plane smelled and felt old. The seats were very uncomfortable. Multiple delays. Extra fees.

Everything you need to know for your flight from Boston to Saint John

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Information on your arrival and departure airports

Boston (BOS)

Saint John (YSJ)

BOS - YSJ

$197 Find Cheap Flights from Boston to Saint John

KAYAK searches hundreds of travel sites at once for deals on flights to Saint John

Everything you should know

Cheap Flights from Boston to Saint John (BOS-YSJ)

Recent round-trip flight deals from Boston to Saint John

Recent one-way flight deals from Boston to Saint John

Good to know

When to book flights from Boston to Saint John

FAQs for booking flights from Boston to Saint John

What is the cheapest flight from Boston to Saint John?

In the last 3 days, the lowest price for a flight from Boston to Saint John was $198 for a one-way ticket and $541 for a round-trip.

Do I need a passport to fly between Boston and Saint John?

Yes

Which aircraft models fly most regularly from Boston to Saint John?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from Boston to Saint John?

Star Alliance is the only airline alliance operating flights between Boston and Saint John.

How does KAYAK find such low prices on flights from Boston to Saint John?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Saint John.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Saint John?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Saint John from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Boston to Saint John?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Saint John with an airline and back to Boston with another airline. Booking your flights between Boston and YSJ can sometimes prove cheaper using this method.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Saint John?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Saint John from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boston to Saint John

Everything you need to know for your flight from Boston to Saint John

Information on your arrival and departure airports

Cabin class types available on flights from Boston to Saint John

Complete your trip to Saint John with a hotel stay or car rental

Find direct flights to and from Boston and Saint John

Flights to other popular destinations

Flights from domestic origins to Saint John

Choose which airport to fly into in Saint John

Find deals for your return flight