How long is the flight from Boston to Saint John?

Air Canada and United Airlines can get you from Boston to Saint John in just under 3h 55m. Your travel time can differ by up to . The distance between Boston and Saint John is about 526 km.

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.

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).

What is the cheapest time of day to fly from BOS to YSJ?

When flying from Boston to Saint John, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

C$ 793+ Cheap Flights from Boston to Saint John

Cheap flight deals from Boston to St John

Enter your travel dates to find the best prices.

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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 26 October 2026.

Sun 6/125:30 a.m. -

1 stop3h 55m

Sun 13/1211:05 a.m. -

1 stop4h 48m

Deal found 22/10C$ 793

Fri 4/125:30 a.m. -

1 stop3h 55m

Fri 11/1211:05 a.m. -

1 stop4h 48m

Deal found 20/10C$ 966

Tue 27/105:45 a.m. -

1 stop10h 34m

Thu 29/106:00 p.m. -

1 stop5h 37m

Deal found 24/10C$ 1,749

Find flight deals from Boston to St John

Round-trip from	C$ 793

Air Canada
6/12-13/12
2 total stops
8h 43m total
Boston to Saint John

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Sun 6/12

5:30 a.m.-10:25 a.m.

1 stop3h 55m

Saint John

Sun 13/12

11:05 a.m.-2:53 p.m.

1 stop4h 48m

C$ 793

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Fri 4/12

5:30 a.m.-10:25 a.m.

1 stop3h 55m

Saint John

Fri 11/12

11:05 a.m.-2:53 p.m.

1 stop4h 48m

C$ 966

Quickest round-trip

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Tue 30/3

5:30 a.m.-10:25 a.m.

1 stop3h 55m

Saint John

Wed 31/3

11:05 a.m.-2:52 p.m.

1 stop4h 47m

C$ 1,090

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Tue 30/3

5:30 a.m.-10:25 a.m.

1 stop3h 55m

Saint John

Wed 31/3

11:05 a.m.-2:52 p.m.

1 stop4h 47m

C$ 1,182

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/10

Sorted by cheapest first

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.

BOS-YSJ

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

How long is the flight from Boston to Saint John?
Air Canada and United Airlines can get you from Boston to Saint John in just under 3h 55m. 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.

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Cheap flights from Boston to Saint John from C$ 793

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Boston to St John

Cheapest flights from Boston to St JohnExplore 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 26 October 2026.

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 26 October 2026.

Best flights from Boston to St JohnDiscover carefully curated flight deals from Boston to St John that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Discover carefully curated flight deals from Boston to St John that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Last-minute flights from Boston to St JohnDiscover last-minute flight deals from Boston to St John. Data last updated 26 October 2026 and is based on user searches.

Discover last-minute flight deals from Boston to St John. Data last updated 26 October 2026 and is based on user searches.

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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.

Related info for your journey

How long is the flight from Boston to Saint John?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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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.

Complete your trip

Complete your trip to St John by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to New Brunswick

Book a non-stop flight to one of these other cities located in New Brunswick.

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Find flights from Boston to St John, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Boston and St John flights

Browse other Boston and St John flight options. Last updated on 26 October 2026.

Other flights from Boston

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Other flights to St John

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

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

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

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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 26 October 2026.

Best flights from Boston to St John
Discover carefully curated flight deals from Boston to St John that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Last-minute flights from Boston to St John
Discover last-minute flight deals from Boston to St John. Data last updated 26 October 2026 and is based on user searches.