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Cheap flights from Boston to Saint John from C$ 394

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YSJ
28 May — 4 Jun1
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 28 April 2026.

Tue 9/66:35 p.m.
BOS
-
YSJ
1 stop14h 25m
Multiple Airlines
Tue 16/611:30 a.m.
YSJ
-
BOS
2 stops8h 35m
Multiple Airlines
Deal found 25/4C$ 695
Thu 11/610:05 a.m.
BOS
-
YSJ
1 stop22h 55m
Multiple Airlines
Thu 18/611:30 a.m.
YSJ
-
BOS
2 stops31h 05m
Multiple Airlines
Deal found 27/4C$ 733
Wed 24/65:30 a.m.
BOS
-
YSJ
2 stops31h 00m
Multiple Airlines
Wed 1/710:45 a.m.
YSJ
-
BOS
1 stop7h 50m
Multiple Airlines
Deal found 24/4C$ 750
Mon 8/66:35 p.m.
BOS
-
YSJ
2 stops20h 10m
Multiple Airlines
Mon 15/610:45 a.m.
YSJ
-
BOS
1 stop23h 20m
Multiple Airlines
Deal found 23/4C$ 758
Tue 4/88:25 p.m.
BOS
-
YSJ
1 stop12h 35m
Multiple Airlines
Wed 12/811:30 a.m.
YSJ
-
BOS
2 stops23h 55m
Multiple Airlines
Deal found 26/4C$ 780
Tue 4/85:30 p.m.
BOS
-
YSJ
1 stop15h 30m
Multiple Airlines
Thu 13/811:30 a.m.
YSJ
-
BOS
2 stops13h 02m
Multiple Airlines
Deal found 26/4C$ 857
Tue 4/88:25 p.m.
BOS
-
YSJ
1 stop12h 35m
Multiple Airlines
Tue 11/811:30 a.m.
YSJ
-
BOS
2 stops28h 11m
Multiple Airlines
Deal found 26/4C$ 859

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 28 April 2026.

Round-trip from

C$ 695

One-way from

C$ 394
9/6-16/6
  • 9/6-16/6
  • 3 total stops
  • 23h 00m total
  • Boston to Saint John
Search Deals
Air Canada
  • Air Canada
  • 8/6
  • 1 total stop
  • 4h 15m total
  • Boston to Saint John
Search Deals

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 28 April 2026.
Use the filters below to find and compare flights from Boston to Saint John that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 9/6

6:35 p.m.-10:00 a.m.

1 stop14h 25m

Saint John

Tue 16/6

11:30 a.m.-7:05 p.m.

2 stops8h 35m

C$ 721

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 11/6

5:45 a.m.-10:00 a.m.

2 stops27h 15m

Saint John

Thu 18/6

11:30 a.m.-7:41 p.m.

3 stops9h 11m

C$ 827

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 24/6

10:40 a.m.-3:55 p.m.

1 stop4h 15m

Saint John

Wed 1/7

4:30 p.m.-9:27 p.m.

1 stop5h 57m

C$ 881
Quickest round-trip

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 6/8

10:40 a.m.-3:50 p.m.

1 stop4h 10m

Saint John

Tue 11/8

4:30 p.m.-9:27 p.m.

1 stop5h 57m

C$ 881

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 11/6

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

1 stop4h 15m

Saint John

Thu 18/6

4:35 p.m.-9:27 p.m.

1 stop5h 52m

C$ 881

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Fri 12/6

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

1 stop4h 15m

Saint John

Fri 19/6

4:35 p.m.-9:27 p.m.

1 stop5h 52m

C$ 896

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Fri 24/7

6:00 a.m.-3:50 p.m.

2 stops8h 50m

Saint John

Mon 27/7

4:30 p.m.-9:27 p.m.

1 stop5h 57m

C$ 900

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 5/8

6:00 a.m.-3:50 p.m.

2 stops8h 50m

Saint John

Tue 11/8

4:30 p.m.-9:27 p.m.

1 stop5h 57m

C$ 900

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 3/6

5:10 a.m.-3:50 p.m.

2 stops9h 40m

Saint John

Fri 5/6

4:30 p.m.-9:27 p.m.

1 stop5h 57m

C$ 900
Cheapest one-way
Quickest one-way

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 8/6

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

1 stop4h 15m

C$ 394

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/4

Showing 1-10 of 13 resultsSorted by cheapest first
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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.

  • 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.

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boston to St John

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