HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$251+ Cheap flights from Saint John (YSJ) to Boston (BOS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — BOS
Jun 14 — Jun 211
Sun 6/14
Sun 6/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St John to Boston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St John to Boston

Cheapest flights from St John to Boston
Explore the most affordable flight options available from St John to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/810:45 am
YSJ
-
BOS
1 stop24h 46m
Multiple Airlines
Tue 6/98:25 pm
BOS
-
YSJ
1 stop12h 35m
Multiple Airlines
Deal found 5/14$471
This Air Canada deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:30 pm
YSJ
-
BOS
1 stop5h 57m
Air Canada
Fri 10/210:40 am
BOS
-
YSJ
1 stop4h 09m
Air Canada
Deal found 5/12$525
This Air Canada deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:35 pm
YSJ
-
BOS
1 stop5h 52m
Air Canada
Tue 6/2310:40 am
BOS
-
YSJ
1 stop4h 15m
Air Canada
Deal found 5/10$548
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/274:35 pm
YSJ
-
BOS
1 stop5h 52m
United Airlines
Sat 7/44:55 pm
BOS
-
YSJ
1 stop5h 55m
United Airlines
Deal found 5/13$628

Find flight deals from St John to Boston

Discover tips and strategies to find the most affordable flight options for your journey from St John (YSJ) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$471
(Kiwi.com)

One-way from

$251
(Kiwi.com)
Provider with most accurate pricing for Saint John-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Saint John-Boston Logan Intl flights.
Search Deals
From Saint John to Boston Logan Intl
Search Deals
One-way flight from Saint John to Boston Logan Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St John to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 15, 2026.
Use the filters below to find and compare flights from Saint John to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Mon 6/8

10:45 am-10:31 am

1 stop24h 46m

Boston Logan Intl

Tue 6/9

8:25 pm-10:00 am

1 stop12h 35m

$471
Quickest round-trip

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Mon 9/28

4:30 pm-9:27 pm

1 stop5h 57m

Boston Logan Intl

Fri 10/2

10:40 am-3:49 pm

1 stop4h 09m

$525

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Fri 6/19

4:35 pm-9:27 pm

1 stop5h 52m

Boston Logan Intl

Tue 6/23

10:40 am-3:55 pm

1 stop4h 15m

$548
Cheapest one-way

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Wed 6/10

10:45 am-5:35 pm

1 stop7h 50m

$251

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Fri 6/5

10:45 am-5:35 pm

1 stop7h 50m

$265
Quickest one-way

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Tue 7/7

4:40 pm-9:27 pm

1 stop5h 47m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

Sorted by cheapest first

Compare providers for flights from St John to Boston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St John to Boston in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Saint John-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Saint John-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Saint John-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Saint John-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Saint John-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St John to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from St John with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from St John to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Saint John to Boston?

    A quick flight from Saint John to Boston can take about 5h 57m. Air Canada provides one of the quickest options available for as low as $525. Airlines will cover a distance of 327 mi.

  • Can I find deals for flights from St John to Boston that include hotel bookings?

    Yes. In addition to deals on St John to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St John to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St John to Boston.

  • Can I find deals for business class flights from St John to Boston?

    Yes. Cheapflights offers flight deals from St John to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Waltham
Medford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Warwick
Peabody
York Beach
Seabrook
Londonderry
Swansea
Old Orchard Beach
Auburn
Quincy
Lowell

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St John to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Moncton to Boston flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights