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Cheap flights from Saint John to Boston from C$ 389

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 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — BOS
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St John to Boston

Enter your travel dates to find the best prices.

Best flights from St John to Boston
Discover carefully curated flight deals from St John to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.

Fri 23/14:15 p.m.YSJ - BOS
1 stop4h 27mAir Canada
Mon 26/110:15 a.m.BOS - YSJ
1 stop4h 25mAir Canada
Deal found 10/12C$ 699
Sat 30/512:20 p.m.YSJ - BOS
1 stop6h 39mAir Canada
Tue 2/610:35 a.m.BOS - YSJ
1 stop4h 15mAir Canada
Deal found 9/12C$ 705
Sat 24/14:15 p.m.YSJ - BOS
1 stop4h 27mAir Canada
Sat 31/110:15 a.m.BOS - YSJ
1 stop4h 20mAir Canada
Deal found 10/12C$ 705

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 12 December 2025.

Round-trip from

C$ 699

One-way from

C$ 389
Air Canada
  • Air Canada
  • 23/1-26/1
  • 2 total stops
  • 8h 52m total
  • Saint John to Boston
Search Deals
Air Canada
  • Air Canada
  • 20/1
  • 1 total stop
  • 4h 27m total
  • Saint John to Boston
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 629,999 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from Saint John to Boston that are best for you.

Fly from

St John

Fly to

Boston

Route

Depart

Return

Price

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Fri 23/1

4:15 p.m.-7:42 p.m.

1 stop4h 27m

Boston Logan Intl

Mon 26/1

10:15 a.m.-3:40 p.m.

1 stop4h 25m

C$ 699

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Sat 30/5

12:20 p.m.-5:59 p.m.

1 stop6h 39m

Boston Logan Intl

Tue 2/6

10:35 a.m.-3:50 p.m.

1 stop4h 15m

C$ 705

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Sat 24/1

4:15 p.m.-7:42 p.m.

1 stop4h 27m

Boston Logan Intl

Sat 31/1

10:15 a.m.-3:35 p.m.

1 stop4h 20m

C$ 705

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Sat 24/1

4:15 p.m.-7:42 p.m.

1 stop4h 27m

C$ 389

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Sun 18/1

4:15 p.m.-7:42 p.m.

1 stop4h 27m

C$ 389

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Tue 20/1

4:15 p.m.-7:42 p.m.

1 stop4h 27m

C$ 389

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Mon 19/1

12:00 p.m.-6:10 p.m.

2 stops31h 10m

C$ 432

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Tue 20/1

4:15 p.m.-11:49 p.m.

2 stops8h 34m

C$ 437

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Sun 18/1

5:40 a.m.-1:13 p.m.

2 stops8h 33m

C$ 443

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

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.

Cheapflights Insights

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

What is the cheapest month to book a flight from Saint John to Boston?

Currently, May is the cheapest month in which you can book a flight from Saint John to Boston (average of C$ 434). Flying from Saint John to Boston in December is currently the most expensive (average of C$ 583). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated 12 December 2025.
Check out reviews from past customers who have flown with Air Canada from Saint John to Boston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,516 reviews
Check prices

Entertainment

6.8

Overall

7.1

Comfort

7.1

Boarding

7.3

Crew

7.8

Food

6.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
10,516 reviews
Air Canada
7.1
Good
10,516 reviews
Check prices

Entertainment

6.8

Overall

7.1

Comfort

7.1

Boarding

7.3

Crew

7.8

Food

6.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

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?

    Airlines like Air Canada fly from Saint John to Boston in about 4h 27m. The time it takes to get you to your destination can typically vary by up to . The distance from Saint John to Boston is about 526 km.

  • What is the cheapest airline to fly from Saint John to Boston round-trip?

    Currently priced at C$ 481, Air Canada will fly you from Saint John to Boston and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip.

  • 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.

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

    Currently, May is the cheapest month in which you can book a flight from Saint John to Boston (average of C$ 434). Flying from Saint John to Boston in December is currently the most expensive (average of C$ 583). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Medford
Chelsea
Waltham
Warwick
Milford
Braintree
Plymouth
Hampton
Old Orchard Beach
Revere
Merrimack
Kennebunk
Watertown
Lawrence
Seekonk
Nashua

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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

Top airline flying from St John to Boston

Discover the top airline that operate flights from St John to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 481AverageC$ 684FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from St John to Boston?

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Why should you use Cheapflights to find cheap flight tickets from St John to Boston?

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Can Cheapflights find flights from St John to Boston with no change fees?

Yes! Cheapflights helps users easily find flights from St John to Boston with no change fees.

Can Cheapflights notify me if prices for flights from St John to Boston become cheaper?

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