Cheap flights from Boston to Saint John from C$ 883

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Saint John departing on 19/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Boston to Saint John

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:15 a.m. - 3:40 p.m.
BOS
-
YSJ
4h 25m1 stop
Air Canada Logo
4:15 p.m. - 7:42 p.m.
YSJ
-
BOS
4h 27m1 stop
C$ 883Air Canada
Mon, 19 Jan - Fri, 23 Jan
Air Canada Logo
10:35 a.m. - 3:40 p.m.
BOS
-
YSJ
4h 05m1 stop
Air Canada Logo
4:30 p.m. - 9:27 p.m.
YSJ
-
BOS
5h 57m1 stop
C$ 898Air Canada
Sat, 30 May - Sat, 6 Jun
Air Canada Logo
10:15 a.m. - 3:40 p.m.
BOS
-
YSJ
4h 25m1 stop
Air Canada Logo
4:15 p.m. - 10:37 p.m.
YSJ
-
BOS
7h 22m2 stops
C$ 900Air Canada
Mon, 19 Jan - Fri, 23 Jan
Air Canada Logo
5:00 p.m. - 11:52 p.m.
BOS
-
YSJ
5h 52m1 stop
Air Canada Logo
4:30 p.m. - 9:27 p.m.
YSJ
-
BOS
5h 57m1 stop
C$ 902Air Canada
Fri, 29 May - Tue, 9 Jun
Air Canada Logo
5:00 p.m. - 11:52 p.m.
BOS
-
YSJ
5h 52m1 stop
Air Canada Logo
5:35 a.m. - 9:54 a.m.
YSJ
-
BOS
5h 19m1 stop
C$ 907Air Canada
Fri, 29 May - Thu, 11 Jun
Air Canada Logo
5:25 a.m. - 3:50 p.m.
BOS
-
YSJ
9h 25m2 stops
Air Canada Logo
4:30 p.m. - 9:27 p.m.
YSJ
-
BOS
5h 57m1 stop
C$ 915Air Canada
Tue, 2 Jun - Tue, 9 Jun
Air Canada Logo
6:15 a.m. - 3:40 p.m.
BOS
-
YSJ
8h 25m2 stops
Air Canada Logo
4:15 p.m. - 10:37 p.m.
YSJ
-
BOS
7h 22m2 stops
C$ 916Air Canada
Mon, 19 Jan - Fri, 23 Jan
Air Canada Logo
5:25 a.m. - 3:50 p.m.
BOS
-
YSJ
9h 25m2 stops
Air Canada Logo
5:35 a.m. - 9:54 a.m.
YSJ
-
BOS
5h 19m1 stop
C$ 919Air Canada
Tue, 2 Jun - Thu, 11 Jun
Air Canada Logo
6:15 a.m. - 3:40 p.m.
BOS
-
YSJ
8h 25m2 stops
Air Canada Logo
4:15 p.m. - 10:37 p.m.
YSJ
-
BOS
7h 22m2 stops
C$ 930Air Canada
Mon, 19 Jan - Fri, 23 Jan
Air Canada Logo
5:25 a.m. - 11:52 p.m.
BOS
-
YSJ
17h 27m1 stop
Air Canada Logo
4:30 p.m. - 9:27 p.m.
YSJ
-
BOS
5h 57m1 stop
C$ 936Air Canada
Sun, 31 May - Tue, 9 Jun

United Airlines flights from Boston to Saint John

Our best United Airlines deals on Boston to Saint John flight tickets
United Airlines
1 Jun
BOS7:30 a.m.Boston Logan Intl
7h 20m
2 stops
YSJ3:50 p.m.Saint John
8 Jun
YSJ4:30 p.m.Saint John
9h 39m
2 stops
BOS1:09 a.m.Boston Logan Intl
C$ 1,051
Find similar
United Airlines
28 Dec
BOS6:23 p.m.Boston Logan Intl
20h 10m
2 stops
YSJ3:33 p.m.Saint John
30 Dec
YSJ11:30 a.m.Saint John
26h 23m
2 stops
BOS12:53 p.m.Boston Logan Intl
C$ 1,433
Find similar

Air Canada flights from Boston to Saint John

Our best Air Canada deals on Boston to Saint John flight tickets
Air Canada
29 Jan
BOS10:15 a.m.Boston Logan Intl
4h 25m
1 stop
YSJ3:40 p.m.Saint John
5 Feb
YSJ4:15 p.m.Saint John
4h 27m
1 stop
BOS7:42 p.m.Boston Logan Intl
Air Canada
29 Jan
BOS6:15 a.m.Boston Logan Intl
8h 25m
2 stops
YSJ3:40 p.m.Saint John
5 Feb
YSJ4:15 p.m.Saint John
4h 27m
1 stop
BOS7:42 p.m.Boston Logan Intl
Air Canada
19 Jan
BOS10:15 a.m.Boston Logan Intl
4h 25m
1 stop
YSJ3:40 p.m.Saint John
23 Jan
YSJ4:15 p.m.Saint John
4h 27m
1 stop
BOS7:42 p.m.Boston Logan Intl

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Saint 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, momondo users made 96,600 searches. Data last updated 18 December 2025.
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

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$ 883

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sat 30/5

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

1 stop4h 05m

Saint John

Sat 6/6

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

1 stop5h 57m

C$ 898

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.-10:37 p.m.

2 stops7h 22m

C$ 900

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Fri 29/5

5:00 p.m.-11:52 p.m.

1 stop5h 52m

Saint John

Tue 9/6

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

1 stop5h 57m

C$ 902

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Fri 29/5

5:00 p.m.-11:52 p.m.

1 stop5h 52m

Saint John

Thu 11/6

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

1 stop5h 19m

C$ 907

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 2/6

5:25 a.m.-3:50 p.m.

2 stops9h 25m

Saint John

Tue 9/6

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

1 stop5h 57m

C$ 915

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 19/1

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

2 stops8h 25m

Saint John

Fri 23/1

4:15 p.m.-10:37 p.m.

2 stops7h 22m

C$ 916

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 2/6

5:25 a.m.-3:50 p.m.

2 stops9h 25m

Saint John

Thu 11/6

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

1 stop5h 19m

C$ 919

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 19/1

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

2 stops8h 25m

Saint John

Fri 23/1

4:15 p.m.-10:37 p.m.

2 stops7h 22m

C$ 930

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sun 31/5

5:25 a.m.-11:52 p.m.

1 stop17h 27m

Saint John

Tue 9/6

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

1 stop5h 57m

C$ 936

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Boston to Saint John

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Saint John according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Saint John (BOS to YSJ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Saint John

Fastest flight time

5h 52m

Direct flights

None
The fastest flight from Boston to Saint John takes 5h 52m
There are no direct flights from Boston to Saint John. There are no popular flight routes from Boston to Saint John.
  • How far is Boston Logan Intl to Saint John by plane?

    Saint John is 514.4 km away from Boston Logan Intl. 5h 52m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Saint John Airport?

    Prices for flights from Boston Logan Intl Airport to Saint John Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Boston Logan Intl Airport to Saint John Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Saint John Airport.

  • What documentation or ID do you need to fly to Saint John Airport?

    The travel and health documents you'll need for your trip to Saint John Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint John Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Boston to Saint John?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Boston from Saint John. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Boston to Saint John with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Travelling to a place near Saint John?

Book flights to Saint John if you plan to visit one of these locations
Sussex

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Saint John?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Saint John from Boston.

Can I find flights from Boston to Saint John with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Saint John from Boston with this policy.

How can momondo help me find flights from Boston to Saint John?

momondo helps you find the best flight between Boston and Saint John by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Saint John right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Saint John now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Saint John and let you know when they change.

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1 adult
Sat 17/1
Sat 24/1

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