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Cheap flights from Saint John to Boston from C$ 273

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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — BOS
3 Aug — 10 Aug1
1 adult

Cheap 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 29 July 2025.

Round-trip from

C$ 567

One-way from

C$ 273
Air Canada
  • Air Canada
  • 23/8-30/8
  • 3 total stops
  • 16h 18m total
  • Saint John to Boston
Search Deals
Air Canada
  • Air Canada
  • 22/9
  • 1 total stop
  • 6h 34m total
  • Saint John to Boston
Search Deals

Find 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 29 July 2025.

Sat 23/811:25 a.m.YSJ - BOS
2 stops12h 13mAir Canada
Sat 30/85:50 a.m.BOS - YSJ
1 stop4h 05mAir Canada
Deal found 26/7C$ 567
Thu 4/1211:35 a.m.YSJ - BOS
2 stops7h 58mUnited Airlines
Wed 28/11:30 p.m.BOS - YSJ
2 stops8h 54mUnited Airlines
Deal found 27/7C$ 690
Thu 11/912:00 p.m.YSJ - BOS
2 stops11h 01mMultiple Airlines
Thu 18/96:20 a.m.BOS - YSJ
3 stops26h 40mMultiple Airlines
Deal found 28/7C$ 864

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 29 July 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

Sat 23/8

11:25 a.m.-10:38 p.m.

2 stops12h 13m

Boston Logan Intl

Sat 30/8

5:50 a.m.-10:55 a.m.

1 stop4h 05m

C$ 567

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Thu 4/12

11:35 a.m.-6:33 p.m.

2 stops7h 58m

Boston Logan Intl

Wed 28/1

1:30 p.m.-11:24 p.m.

2 stops8h 54m

C$ 690

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Thu 11/9

12:00 p.m.-10:01 p.m.

2 stops11h 01m

Boston Logan Intl

Thu 18/9

6:20 a.m.-10:00 a.m.

3 stops26h 40m

C$ 864

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Mon 22/9

5:55 a.m.-11:29 a.m.

1 stop6h 34m

C$ 273

Saint JohnBoston

YSJ - BOS

YSJBOS

Saint John

Mon 22/9

10:45 a.m.-9:30 a.m.

3 stops23h 45m

C$ 348

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

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$ 291). Flying from Saint John to Boston in April is currently the most expensive (average of C$ 350). 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 29 July 2025.
Check out reviews from past customers who have flown with United Airlines and 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.
United Airlines
7.4
Good
8,899 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,899 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Air Canada
7.1
Good
9,822 reviews
United Airlines
7.4
Good
8,899 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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.

  • What are the cheapest airlines flying from Saint John to Boston round-trip?

    Currently priced at C$ 567, 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. Check Cheapflights for deals on United Airlines for as low as C$ 690.

  • 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$ 291). Flying from Saint John to Boston in April is currently the most expensive (average of C$ 350). 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
Braintree
Waltham
Somerville
Rockland
Chelsea
Warwick
Milford
Plymouth
Quincy
Old Orchard Beach
Revere
Hampton
Lynn
Merrimack
Andover
Watertown
Kennebunk
Amherst
Seekonk

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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 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 478AverageC$ 605FlexibilityNo 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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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.

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