YSJ - BOS

C$ 370 Find Cheap Flights from Saint John to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Saint John to Boston departing on 29/10. 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 Boston

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

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Saint John to Boston 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 Saint John to Boston

Wed, 29 Oct - Wed, 5 Nov
Air Canada Logo
11:55 a.m. - 2:52 p.m.YSJ-BOS
3h 57m1 stop
Air Canada Logo
5:30 a.m. - 11:15 a.m.BOS-YSJ
4h 45m1 stop
C$ 663Air Canada
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Air Canada Logo
11:55 a.m. - 6:02 p.m.YSJ-BOS
7h 07m2 stops
Air Canada Logo
5:30 a.m. - 11:15 a.m.BOS-YSJ
4h 45m1 stop
C$ 680Air Canada
Find Deal
Wed, 29 Oct - Wed, 5 Nov
United Airlines Logo
5:40 a.m. - 3:17 p.m.YSJ-BOS
10h 37m2 stops
United Airlines Logo
5:30 a.m. - 5:14 p.m.BOS-YSJ
10h 44m2 stops
C$ 771United Airlines
Find Deal
Tue, 30 Sep - Fri, 3 Oct
Air Canada Logo
5:55 a.m. - 9:55 a.m.YSJ-BOS
5h 00m1 stop
Air Canada Logo
6:00 a.m. - 10:49 a.m.BOS-YSJ
3h 49m1 stop
C$ 890Air Canada
Find Deal
Tue, 30 Sep - Fri, 3 Oct
Air Canada Logo
5:55 a.m. - 9:55 a.m.YSJ-BOS
5h 00m1 stop
Air Canada Logo
6:55 p.m. - 10:49 a.m.BOS-YSJ
14h 54m2 stops
C$ 938Air Canada
Find Deal
Tue, 30 Sep - Fri, 3 Oct
United Airlines Logo
5:55 a.m. - 2:40 p.m.YSJ-BOS
9h 45m2 stops
United Airlines Logo
8:00 a.m. - 5:40 p.m.BOS-YSJ
8h 40m2 stops
C$ 977United Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov
 Logo
12:00 p.m. - 9:35 a.m.YSJ-BOS
22h 35m3 stops
 Logo
3:30 p.m. - 3:45 p.m.BOS-YSJ
23h 15m3 stops
C$ 983
Find Deal

Everything you should know

Top airlines
Air Canada
Cheapest • from C$ 663 (round-trip)
Air Canada
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
C$ 663
Air Canada
Wed 29/10Wed 5/11
YSJ - BOS • 1 stop
Cheapest one-way flights
C$ 370
Air Canada
Wed 29/10
YSJ - BOS • 1 stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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Booking Insights

KAYAK's insights & trends for Saint John to Boston flights

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

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

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 Saint John to Boston were found on Air Canada (C$ 663) and United Airlines (C$ 771).

Good to know

Cheapest flightC$ 370
Flight from Saint John to Boston

When to book flights from Saint John to Boston

Are your dates flexible? Find out the best times to travel from Saint John to Boston 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 Saint John to Boston

  • What is the cheapest flight from Saint John to Boston?

    In the last 3 days, the lowest price for a flight from Saint John to Boston was C$ 267 for a one-way ticket and C$ 479 for a round-trip.

  • Which airports will I be using when flying from Saint John to Boston?

    Saint John and Boston are both served by 1 main airport. You will leave Saint John from Saint John and will be arriving at Boston Logan Intl.

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

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

  • Which airline alliances offer flights from Saint John to Boston?

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

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

    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 Saint John to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Saint John 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 Saint John to Boston?

    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 Boston with an airline and back to Saint John with another airline.

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

    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 Boston from Saint John 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 Saint John to Boston

 
See real verified KAYAK customer reviews for airlines flying from Saint John to Boston. 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 Saint John to Boston? 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
7.8Crew
7.1Comfort
6.3Food
6.8Entertainment
7.3Boarding
Airline reviews

I liked the behaviour of the crew members.The flight was good.

8.0 ExcellentAnonymous, Sep 2025YYZ - SFO
Read more Air Canada reviews

I liked the behaviour of the crew members.The flight was good.

Would like whole can of pop for 2. Treats were not great . The garlic pretzels were terrible for someone who can't eat garlic. Passenger was 84.

1 hour late No hot drinks No restroom in the back of the plane

I swear airplane seats keep getting smaller and smaller but everything else was great. Smooth sailing and we got in early.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

After a long flight from Tokyo, our connecting flight home was canceled due to “maintenance” while we were on our layover in Toronto. Very frustrating to close out our honeymoon, although I’m sure others had it even worse during last week’s strike. Air Canada staff at Pearson Airport are the one thing that kept me remotely at peace during this — they were very helpful and deserve a lot of props. But I would not fly Air Canada again.

I had wonderful wheelchair assistance through the Montreal airport onto the flight. Air Canada was excellent in this both at the Fredericton airport and the Montreal one where an attendant helped us through customs as well as transport and baggage security.

I found check in difficult because I could only pull up one passenger. I got help.

Horrible flight cancelled had to buy another very expensive ticket

Flight was cancelled last minute due to Air Canada strike leaving us stranded and having to stressfully find a way home that cost hundreds of dollars in excess cost added to the trip. Having just experienced our mother's funeral service, this was not a good way to end our trip.

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

Information on your arrival and departure airports

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