BOS - YSJ

$270 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 10/9. 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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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

Sat, Oct 18 - Wed, Oct 22
Air Canada Logo
6:00 am - 10:49 amBOS-YSJ
3h 49m1 stop
Air Canada Logo
11:35 am - 2:30 pmYSJ-BOS
3h 55m1 stop
$522Air Canada
Find Deal
Wed, Oct 8 - Wed, Oct 15
Air Canada Logo
6:00 am - 10:49 amBOS-YSJ
3h 49m1 stop
Air Canada Logo
5:55 am - 9:55 amYSJ-BOS
5h 00m1 stop
$529Air Canada
Find Deal
Tue, Oct 7 - Mon, Oct 20
 Logo
12:15 pm - 3:45 pmBOS-YSJ
26h 30m2 stops
 Logo
10:45 am - 10:01 pmYSJ-BOS
12h 16m1 stop
Wed, Oct 8 - Mon, Oct 20
 Logo
10:10 am - 3:45 pmBOS-YSJ
28h 35m2 stops
 Logo
10:45 am - 10:01 pmYSJ-BOS
12h 16m1 stop
Tue, Oct 7 - Mon, Oct 20
 Logo
12:15 pm - 3:45 pmBOS-YSJ
26h 30m2 stops
 Logo
10:45 am - 10:01 pmYSJ-BOS
12h 16m1 stop
Tue, Oct 7 - Fri, Oct 17
 Logo
12:15 pm - 3:45 pmBOS-YSJ
26h 30m2 stops
 Logo
10:45 am - 10:01 pmYSJ-BOS
12h 16m1 stop
Fri, Oct 17 - Wed, Oct 22
Air Canada Logo
6:00 am - 10:49 amBOS-YSJ
3h 49m1 stop
Air Canada Logo
11:35 am - 2:30 pmYSJ-BOS
3h 55m1 stop
$540Air Canada
Find Deal
Fri, Oct 17 - Wed, Oct 22
Air Canada Logo
12:15 pm - 10:49 amBOS-YSJ
21h 34m2 stops
Air Canada Logo
11:35 am - 2:30 pmYSJ-BOS
3h 55m1 stop
$585Air Canada
Find Deal
Thu, Oct 9 - Mon, Oct 13
United Airlines Logo
6:00 am - 5:40 pmBOS-YSJ
10h 40m2 stops
United Airlines Logo
5:55 am - 11:29 amYSJ-BOS
6h 34m1 stop
$742United Airlines
Find Deal
Thu, Oct 9 - Mon, Oct 13
United Airlines Logo
6:00 am - 5:40 pmBOS-YSJ
10h 40m2 stops
United Airlines Logo
6:40 pm - 12:43 pmYSJ-BOS
19h 03m2 stops
$781United Airlines
Find Deal
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 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 ($522) and United Airlines ($742).

Good to know

Cheapest flight$270
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 $270 for a one-way ticket and $522 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 10000 reviews
7.0Comfort
7.8Crew
6.8Entertainment
7.3Boarding
6.3Food
Airline reviews

Flight cancelled. Major disruption to our travel. Do not use Air Canada from KC. To few flights.

2.0 MediocreKyle, Aug 2025MCI - YYZ
Read more Air Canada reviews

Flight cancelled. Major disruption to our travel. Do not use Air Canada from KC. To few flights.

Real smooth and easy, Real good leg room in coach!

There labor disputes cancelled my flight less than 24 hours before my boarding time but there customer service/website was easy enough to navigate and they rebooked me for no upcharge.

Re luggage I carried a backpack only. I did not check any bags in. However there were other passengers with carry on luggage going in the plane. My question is why are others allowed to have a carry on luggage inside the plane? Shouldn’t they have dropped it off at the gate? I’m asking because I could have brought the same thing instead of a backpack only. Please clarify for future reference. Thank you.

Like the service. Very hard to communicate or contact when have problems

Very bad, flight was cancelled due to strike and staff was unable to rebook us

They rescheduled me and I had no issues with the new flight

Air Canada is my new fave airline..I plan to use when I can. No complaints at all just rave compliments for the staff and airline.

Strike pissed me n stranded in middle of no where

Check in staff was incredibly rude and condescending. When I arrived at the gate I had been charged $125 for a checked back. I did have or check a bag. When I brought this to the attention of the staff member who checked me in, she said that she made a mistake and there was nothing she could do about it. I asked her to remove the charge and refund credit card, she said she could not and that I had to call my credit card company to contest the charge. I called Air Canada customer support, was put on hold, after 43 minutes a received a messages stating customer service was overwhelmed with calls and was then hung up on.

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

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