How long is the flight from Boston to St. John's?

Porter Airlines can get you from Boston to St. John's in just under 18h 40m. Your travel time can differ by up to . Boston and St. John's are separated by a distance of 1545 km.

In terms of precipitation, rainfall in St. John's ranges from 92.0 - 165.0 mm per month. December is typically the wettest month, when rainfall can reach 165.0 mm. July is typically the driest time to visit St. John's when rainfall is around 92.0 mm.

If weather is an important factor for your trip to St. John's, 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 16.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -5.0 C).

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

When flying from Boston to St. John's, 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's that include hotel bookings?

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

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

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's.

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

Yes. Cheapflights offers flight deals from Boston to St. John's 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$ 296+ Cheap Flights from Boston to St. John's

Cheap flight deals from Boston to St. John's

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Boston to St. John's
Explore the most affordable flight options available from Boston to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Sat 21/115:25 p.m. -

1 stop18h 40m

Wed 9/126:00 a.m. -

2 stops14h 40m

Deal found 23/10C$ 641

Thu 26/115:25 p.m. -

1 stop18h 40m

Wed 9/126:00 a.m. -

2 stops14h 40m

Deal found 23/10C$ 654

Sun 22/119:50 a.m. -

1 stop26h 15m

Wed 9/126:00 a.m. -

2 stops14h 40m

Deal found 23/10C$ 657

Wed 11/115:25 p.m. -

1 stop18h 40m

Wed 18/112:30 p.m. -

1 stop20h 10m

Deal found 21/10C$ 669

Thu 12/115:25 p.m. -

1 stop18h 40m

Fri 20/112:30 p.m. -

1 stop20h 10m

Deal found 21/10C$ 671

Sat 21/118:00 a.m. -

2 stops15h 29m

Fri 27/112:30 p.m. -

1 stop20h 10m

Deal found 21/10C$ 690

Fri 4/128:00 a.m. -

2 stops15h 28m

Mon 7/122:30 p.m. -

1 stop20h 10m

Deal found 22/10C$ 706

Sat 5/128:00 a.m. -

2 stops15h 28m

Sat 12/122:30 p.m. -

1 stop20h 10m

Deal found 21/10C$ 709

Find flight deals from Boston to St. John's

Round-trip from	C$ 641
One-way from	C$ 296
Popular in	November
Cheapest in	March
Average price	C$ 983

Porter Airlines
21/11-9/12
3 total stops
33h 20m total
Boston to St. John's

Search Deals

Porter Airlines
5/12-31/12
2 total stops
15h 28m total
Boston to St. John's

Search Deals

Highest demand for flights based on searches. 24% potential increase in price (C$ 469 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease (C$ 111 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSt. John's

BOS Boston Logan Intl - YYT St John's

BOSYYT

Boston Logan Intl

Sat 5/12

8:00 a.m.-12:58 a.m.

2 stops15h 28m

St John's

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 296

BostonSt. John's

BOS Boston Logan Intl - YYT St John's

BOSYYT

Boston Logan Intl

Sat 5/12

3:30 p.m.-12:50 a.m.

1 stop7h 50m

St John's

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 354

Quickest round-trip

BostonSt. John's

BOS Boston Logan Intl - YYT St John's

BOSYYT

Boston Logan Intl

Wed 23/12

6:35 p.m.-1:45 a.m.

1 stop5h 40m

St John's

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 506

BostonSt. John's

BOS Boston Logan Intl - YYT St John's

BOSYYT

Boston Logan Intl

Wed 23/12

1:15 p.m.-12:35 p.m.

2 stops21h 50m

St John's

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 532

BostonSt. John's

BOS Boston Logan Intl - YYT St John's

BOSYYT

Boston Logan Intl

Tue 22/12

5:45 a.m.-4:56 p.m.

1 stop9h 41m

St John's

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 546

BostonSt. John's

BOS Boston Logan Intl - YYT St John's

BOSYYT

Boston Logan Intl

Mon 21/12

3:30 p.m.-1:45 a.m.

1 stop8h 45m

St John's

Wed 31/12

12:00 a.m.-10:30 p.m.

Nonstop0h 00m

C$ 548

BostonSt. John's

BOS Boston Logan Intl - YYT St John's

BOSYYT

Boston Logan Intl

Sat 21/11

5:25 p.m.-1:35 p.m.

1 stop18h 40m

St John's

Wed 9/12

6:00 a.m.-7:10 p.m.

2 stops14h 40m

C$ 641

BostonSt. John's

BOS Boston Logan Intl - YYT St John's

BOSYYT

Boston Logan Intl

Fri 4/12

8:00 a.m.-12:58 a.m.

2 stops15h 28m

St John's

Mon 7/12

2:30 p.m.-9:10 a.m.

1 stop20h 10m

C$ 706

BostonSt. John's

BOS Boston Logan Intl - YYT St John's

BOSYYT

Boston Logan Intl

Sat 21/11

8:00 a.m.-12:59 a.m.

2 stops15h 29m

St John's

Sat 28/11

6:00 a.m.-4:43 p.m.

1 stop12h 13m

C$ 745

BostonSt. John's

BOS Boston Logan Intl - YYT St John's

BOSYYT

Boston Logan Intl

Tue 24/11

9:50 a.m.-11:26 p.m.

2 stops12h 06m

St John's

Wed 9/12

7:00 a.m.-4:46 p.m.

2 stops11h 16m

C$ 776

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/10

Showing 1-10 of 17 resultsSorted by cheapest first

Best time to book a flight from Boston to St. John's

Have a flexible travel schedule? Discover the best time to fly to St. John's from Boston with our price prediction graph.

BOS-YYT

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 St. John's

What is the cheapest month to book a flight from Boston to St. John's?

Currently, March is the cheapest month in which you can book a flight from Boston to St. John's (average of C$ 754). Flying from Boston to St. John's in November is currently the most expensive (average of C$ 1,906). 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.

How much does it cost to fly round-trip from Boston to St. John's?

Airfare is below average for this route at the moment.

Boston to St. John's flights typically cost between C$ 1,008 and C$ 1,467 in November.
The cheapest round-trip price found within the last 5 days was C$ 641 on Porter Airlines (21 Nov-9 Dec).

Related info for your journey

How long is the flight from Boston to St. John's?
Porter Airlines can get you from Boston to St. John's in just under 18h 40m. Your travel time can differ by up to . Boston and St. John's are separated by a distance of 1545 km.
Can I find deals for flights from Boston to St. John's that include hotel bookings?
Yes. In addition to deals on Boston to St. John's flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boston to St. John's?
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's.
Can I find deals for business class flights from Boston to St. John's?
Yes. Cheapflights offers flight deals from Boston to St. John's 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 St. John's?
Currently, March is the cheapest month in which you can book a flight from Boston to St. John's (average of C$ 754). Flying from Boston to St. John's in November is currently the most expensive (average of C$ 1,906). 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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Cheap flights from Boston to St. John's from C$ 296

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 5/12. 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's

Cheapest flights from Boston to St. John'sExplore the most affordable flight options available from Boston to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Explore the most affordable flight options available from Boston to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Best flights from Boston to St. John'sDiscover carefully curated flight deals from Boston to St. John's that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Discover carefully curated flight deals from Boston to St. John's that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Last-minute flights from Boston to St. John'sDiscover last-minute flight deals from Boston to St. John's. Data last updated 25 October 2026 and is based on user searches.

Discover last-minute flight deals from Boston to St. John's. Data last updated 25 October 2026 and is based on user searches.

One-way flights from Boston to St. John'sSearch for one-way flight options from Boston to St. John's. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Search for one-way flight options from Boston to St. John's. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

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Best time to book a flight from Boston to St. John's

Have a flexible travel schedule? Discover the best time to fly to St. John's from Boston with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Boston to St. John's?

How much does it cost to fly round-trip from Boston to St. John's?

Airfare is below average for this route at the moment.

Boston to St. John's flights typically cost between C$ 1,008 and C$ 1,467 in November.The cheapest round-trip price found within the last 5 days was C$ 641 on Porter Airlines (21 Nov-9 Dec).

Related info for your journey

How long is the flight from Boston to St. John's?

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

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

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

What is the cheapest month to book a flight from Boston to St. John's?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boston to St. John's

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Complete your trip

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

Direct flights to Newfoundland and Labrador

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Boston and St. John's flights

Browse other Boston and St. John's flight options. Last updated on 25 October 2026.

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

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Cheapest flights from Boston to St. John's
Explore the most affordable flight options available from Boston to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 October 2026.

Best flights from Boston to St. John's
Discover carefully curated flight deals from Boston to St. John's that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Last-minute flights from Boston to St. John's
Discover last-minute flight deals from Boston to St. John's. Data last updated 25 October 2026 and is based on user searches.

One-way flights from Boston to St. John's
Search for one-way flight options from Boston to St. John's. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Boston to St. John's flights typically cost between C$ 1,008 and C$ 1,467 in November.
The cheapest round-trip price found within the last 5 days was C$ 641 on Porter Airlines (21 Nov-9 Dec).