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Cheap flights from Boston to Saint John from C$ 884

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YSJ
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to St John

Enter your travel dates to find the best prices.

Cheapest flights from Boston to St John
Explore the most affordable flight options available from Boston to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.

Tue 23/1212:20 p.m.BOS - YSJ
2 stops21h 19mUnited Airlines
Sat 3/14:15 p.m.YSJ - BOS
1 stop3h 57mUnited Airlines
Deal found 10/12C$ 1,649
Tue 23/126:55 p.m.BOS - YSJ
1 stop14h 44mAir Canada
Sat 3/14:15 p.m.YSJ - BOS
1 stop3h 57mAir Canada
Deal found 10/12C$ 1,947

Find flight deals from Boston to St John

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to St John (YSJ). 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$ 884
Air Canada
  • Air Canada
  • 19/1-23/1
  • 2 total stops
  • 8h 52m total
  • Boston to Saint John
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to St John 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 Boston to Saint John that are best for you.

Fly from

Boston

Fly to

St John

Route

Depart

Return

Price

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 19/1

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

1 stop4h 25m

Saint John

Fri 23/1

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

1 stop4h 27m

C$ 884

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sun 24/5

10:35 a.m.-3:40 p.m.

1 stop4h 05m

Saint John

Sun 31/5

5:35 a.m.-9:54 a.m.

1 stop5h 19m

C$ 888

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sat 24/1

6:15 a.m.-3:35 p.m.

2 stops8h 20m

Saint John

Sat 31/1

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

1 stop4h 27m

C$ 901

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sun 25/1

6:15 a.m.-3:40 p.m.

2 stops8h 25m

Saint John

Sun 1/2

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

1 stop4h 27m

C$ 901

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Best time to book a flight from Boston to St John

Have a flexible travel schedule? Discover the best time to fly to St John from Boston 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 Boston to St John. 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 Boston to Saint John?

    Air Canada can get you from Boston to Saint John in just under 4h 25m. Your travel time can differ by up to . The distance between Boston and Saint John is about 526 km.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston to St John 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

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Alternative routes for Boston to St John

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

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