BOS - YSJ

$219 Find Cheap Flights from Boston to Saint John

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Saint John departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Saint John, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Saint John, as well as popular online travel agencies
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Flights Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Saint John that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Saint John

Tue, Jul 22 - Tue, Jul 29
Air Canada Logo
5:50 am - 10:49 amBOS-YSJ
3h 59m1 stop
Air Canada Logo
11:35 am - 2:35 pmYSJ-BOS
4h 00m1 stop
$497Air Canada
Find Deal
Thu, Aug 7 - Sun, Aug 10
Air Canada Logo
5:50 am - 10:50 amBOS-YSJ
4h 00m1 stop
Air Canada Logo
5:55 am - 9:55 amYSJ-BOS
5h 00m1 stop
$504Air Canada
Find Deal
Tue, Jul 22 - Tue, Jul 29
Air Canada Logo
5:50 am - 10:49 amBOS-YSJ
3h 59m1 stop
Air Canada Logo
11:35 am - 10:38 pmYSJ-BOS
12h 03m2 stops
$509Air Canada
Find Deal
Sat, Aug 23 - Sat, Aug 30
Air Canada Logo
5:50 am - 10:34 amBOS-YSJ
3h 44m1 stop
Air Canada Logo
11:25 am - 2:35 pmYSJ-BOS
4h 10m1 stop
$518Air Canada
Find Deal
Sat, Aug 23 - Sat, Aug 30
Air Canada Logo
5:50 am - 10:34 amBOS-YSJ
3h 44m1 stop
Air Canada Logo
11:25 am - 6:08 pmYSJ-BOS
7h 43m2 stops
$530Air Canada
Find Deal
Tue, Jul 22 - Tue, Jul 29
Air Canada Logo
6:55 pm - 10:50 amBOS-YSJ
14h 55m2 stops
Air Canada Logo
11:35 am - 10:38 pmYSJ-BOS
12h 03m2 stops
$555Air Canada
Find Deal
Thu, Aug 7 - Sun, Aug 10
United Airlines Logo
5:50 am - 10:50 amBOS-YSJ
4h 00m1 stop
United Airlines Logo
5:55 am - 1:40 pmYSJ-BOS
8h 45m2 stops
$648United Airlines
Find Deal
Fri, Aug 22 - Fri, Aug 29
United Airlines Logo
5:50 am - 10:50 amBOS-YSJ
4h 00m1 stop
United Airlines Logo
5:55 am - 9:55 amYSJ-BOS
5h 00m1 stop
$654United Airlines
Find Deal
Fri, Aug 22 - Fri, Aug 29
United Airlines Logo
5:50 am - 10:50 amBOS-YSJ
4h 00m1 stop
United Airlines Logo
11:25 am - 5:47 pmYSJ-BOS
7h 22m2 stops
$663United Airlines
Find Deal
Thu, Aug 7 - Sun, Aug 10
 Logo
3:30 pm - 10:00 amBOS-YSJ
17h 30m2 stops
 Logo
11:35 am - 8:10 pmYSJ-BOS
33h 35m3 stops
$2,826
Find Deal
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KAYAK's insights & trends for Boston to Saint John flights

Get data-powered insights and trends into flights from Boston to Saint John to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boston to Saint John?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boston to Saint John were found on Air Canada ($497) and United Airlines ($648).

Good to know

Cheapest flight$219
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.

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 $219 for a one-way ticket and $497 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

 
See real verified KAYAK customer reviews for airlines flying from Boston to Saint John. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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 9695 reviews
6.3Food
7.8Crew
6.8Entertainment
7.3Boarding
7.1Comfort
Airline reviews

Flight was delayed by 1.5hrs. Once inside, people had their small handbags on the storage. The crew (male guy) was not helpful in making some space in the storage. Instead, he asked few bags to be checked-in and it was not a great experience. No attempt to help but just followed the things with a straight face. People had their literally small bags and he wouldnt not move from one storage to another even if there was space and would not let us do i as well. Once flight was on, they ran out of Orange juice, really running out of orange juice when the temp were 32.degrees outside. didnt made the sense. Onasking for a extra snack, he made a face as if he was giving me out of his pocket. if the flight was delayed, there could have an attempt to provide something extra incase people did asked.

4.0 OkayNikhil, Jul 2025ORD - YYZ
Read more Air Canada reviews

Flight was delayed by 1.5hrs. Once inside, people had their small handbags on the storage. The crew (male guy) was not helpful in making some space in the storage. Instead, he asked few bags to be checked-in and it was not a great experience. No attempt to help but just followed the things with a straight face. People had their literally small bags and he wouldnt not move from one storage to another even if there was space and would not let us do i as well. Once flight was on, they ran out of Orange juice, really running out of orange juice when the temp were 32.degrees outside. didnt made the sense. Onasking for a extra snack, he made a face as if he was giving me out of his pocket. if the flight was delayed, there could have an attempt to provide something extra incase people did asked.

Plane was clean, crew were courtesy and friendly, great flight. There was no food or entertainment but it was a short flight.

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

We had a very long delay. First the inbound flight took a while, then maintenance, they “fixed it” to then do boarding and leave the gate, and waste a lot of time to have to go back to the gate and eventually deplane. Had to wait for a new aircraft, wait for a gate, and do the whole thing again. Instead of leaving at 9:50am we left until past 1. I could’ve not woken up at 5am, or spend some more time with my family if they gave more grace period of time between flights to give some time in case of any issues. But they have to make all and every dollar possible

Aircraft had technical issues. After 3 hours of trying to resolve, flight was cancelled. Was booked on a flight leaving 12 hours after intended departure. Now on 4 flights instead of 2 and a day late to my destination.

Abandoned me in hallway in a wheelchair… which I asked for because I sprained my back. After waiting in the hallway, I decided to walk the rest of the way since someone respecting me up.. My experience with the united was totally the opposite. Wheelchair access, propped swift and save me a lot of grief. Air Canada totally disorganized.

I am very tall. All airline seats are a bit uncomfortable.

Bad experience boarding and flight got delayed didn’t make it to my next flight

The food on the trip Toronto to Athens could be better: the chicken didn’t taste good.

Terrible confusion btw air Canada and United. Wasn’t able to change ticket because I had purchased on kayak. Rethinking booking tickets on this site, and will try to avoid United and aircanada going forward.

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

Information on your arrival and departure airports

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