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Cheap flights from Boston to Saint John from C$ 672

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 18/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YSJ
15 Apr — 22 Apr1
1 adult

Cheap 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 10 April 2025.

Round-trip from

C$ 672
Air Canada
  • Air Canada
  • 18/7-22/7
  • 2 total stops
  • 7h 59m total
  • Boston to Saint John
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Find flight deals from Boston to St John

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 10 April 2025.

Fri 18/75:50 a.m.BOS - YSJ
1 stop3h 59mAir Canada
Tue 22/711:35 a.m.YSJ - BOS
1 stop4h 00mAir Canada
Deal found 9/4C$ 672
Fri 18/77:00 a.m.BOS - YSJ
2 stops9h 45mUnited Airlines
Tue 22/711:35 a.m.YSJ - BOS
2 stops7h 09mUnited Airlines
Deal found 9/4C$ 716

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 10 April 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

Fri 18/7

5:50 a.m.-10:49 a.m.

1 stop3h 59m

Saint John

Tue 22/7

11:35 a.m.-2:35 p.m.

1 stop4h 00m

C$ 672

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Fri 18/7

7:00 a.m.-5:45 p.m.

2 stops9h 45m

Saint John

Tue 22/7

11:35 a.m.-5:44 p.m.

2 stops7h 09m

C$ 716

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/4

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.

Cheapflights Insights

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

Rainfall in St John by month

Plan your trip to St John by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Saint John ranges from 82.0 - 134.0 mm per month. November is typically the wettest month, when rainfall can reach 134.0 mm. August is typically the driest time to visit Saint John when rainfall is around 82.0 mm.

Temperature in St John by month

Plan your trip to St John by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Saint John, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -8.0 C).

Reviews of airlines servicing St John

Get insights into the airlines that provide service to St John. 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 St John. Reviews last updated 10 April 2025.
United Airlines
7.4
Good
8,634 reviews
Check prices

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,634 reviews
United Airlines
7.4
Good
8,634 reviews
Check prices

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.0
Good
9,083 reviews
United Airlines
7.4
Good
8,634 reviews
Check prices

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

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

    Our cheapest airline available from Boston to Saint John is Air Canada. Our recent data shows that you can find tickets from as low as C$ 672 on this airline. An additional option worth looking into is United Airlines, starting at C$ 716.

  • 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.

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

    Currently, May is the cheapest month in which you can book a flight from Boston to Saint John (average of C$ 213). Flying from Boston to Saint John in December is currently the most expensive (average of C$ 461). 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.

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

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