BOS - YSJ

$641 Find Cheap Flights from Boston to Saint John

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Saint John departing on 1/19. 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, 0 bags

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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$641
Air Canada
Mon 1/19Fri 1/23
BOS - YSJ • 1 stop
Cheapest one-way
Multiple Airlines
Thu 12/18
BOS - YSJ • multi-stop
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
Booking Insights
Flight 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

Mon, Jan 19 - Fri, Jan 23
Air Canada Logo
10:15 am - 3:40 pm
BOS
-
YSJ
4h 25m1 stop
Air Canada Logo
4:15 pm - 7:42 pm
YSJ
-
BOS
4h 27m1 stop
$641Air Canada
Sat, May 30 - Wed, Jun 10
Air Canada Logo
10:35 am - 3:40 pm
BOS
-
YSJ
4h 05m1 stop
Air Canada Logo
4:30 pm - 9:27 pm
YSJ
-
BOS
5h 57m1 stop
$652Air Canada
Mon, Jan 19 - Fri, Jan 23
Air Canada Logo
10:15 am - 3:40 pm
BOS
-
YSJ
4h 25m1 stop
Air Canada Logo
4:15 pm - 10:37 pm
YSJ
-
BOS
7h 22m2 stops
$653Air Canada
Fri, May 29 - Tue, Jun 9
Air Canada Logo
5:00 pm - 11:52 pm
BOS
-
YSJ
5h 52m1 stop
Air Canada Logo
4:30 pm - 9:27 pm
YSJ
-
BOS
5h 57m1 stop
$655Air Canada
Fri, May 29 - Thu, Jun 11
Air Canada Logo
5:00 pm - 11:52 pm
BOS
-
YSJ
5h 52m1 stop
Air Canada Logo
5:35 am - 9:54 am
YSJ
-
BOS
5h 19m1 stop
$658Air Canada
Tue, Jun 2 - Fri, Jun 5
Air Canada Logo
5:25 am - 3:50 pm
BOS
-
YSJ
9h 25m2 stops
Air Canada Logo
4:30 pm - 9:27 pm
YSJ
-
BOS
5h 57m1 stop
$664Air Canada
Mon, Jan 19 - Fri, Jan 23
Air Canada Logo
6:15 am - 3:40 pm
BOS
-
YSJ
8h 25m2 stops
Air Canada Logo
4:15 pm - 10:37 pm
YSJ
-
BOS
7h 22m2 stops
$665Air Canada
Tue, Jun 2 - Thu, Jun 11
Air Canada Logo
5:25 am - 3:50 pm
BOS
-
YSJ
9h 25m2 stops
Air Canada Logo
5:35 am - 9:54 am
YSJ
-
BOS
5h 19m1 stop
$667Air Canada
Mon, Jan 19 - Fri, Jan 23
Air Canada Logo
6:15 am - 3:40 pm
BOS
-
YSJ
8h 25m2 stops
Air Canada Logo
4:15 pm - 10:37 pm
YSJ
-
BOS
7h 22m2 stops
$675Air Canada
Sun, May 31 - Tue, Jun 9
Air Canada Logo
5:25 am - 11:52 pm
BOS
-
YSJ
17h 27m1 stop
Air Canada Logo
4:30 pm - 9:27 pm
YSJ
-
BOS
5h 57m1 stop
$679Air Canada
Booking Insights

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 fly non-stop between Boston and Saint John?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Boston to Saint John.

There is just one airline that flies from Boston to Saint John direct and that is Air Canada. The best round-trip deal found from Air Canada for the route is $235.

Find deals

Good to know

Cheapest flight$641
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 $641 for a round-trip ticket.

  • 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 10534 reviews
7.3Boarding
7.8Crew
6.8Entertainment
7.1Comfort
6.3Food
Airline reviews

Nothing specific. Cabin temperature was too high for some reason.

6.0 GoodModje, Dec 2025
MIA - YVR
Read more Air Canada reviews

Nothing specific. Cabin temperature was too high for some reason.

It was just fine. I managed to make all my connection too sbut had trouble in Munich with no wheel chair and trouble trying to get help from the airport people to get to the other terminal for my flight. Finally a wonderful lady Amelia, helped me to make my flight connection Timon with zero time to spare.

Over 40 years ago my AC return flight was canceled, during this last summer the same thing happened. AC denied everything Canadian like paying for accommodations and basic necessities. So why would I ever want to fly AC again? This last flight my wife took the return flight had problems and left late, so I guess they are getting better. However I have no faith in this airline so I drove to this last destination! I'll never fly AC again!!!

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

Boarding was so so after zone 3 was called all other zones went in

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

Information on your arrival and departure airports

Boston (BOS)
Saint John (YSJ)