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Cheap flights from Boston to Saint John from C$ 320

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Saint John departing on 7/5. 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
1 adult, Economy, 0 bags

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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
10:35 a.m. - 3:50 p.m.
BOS
-
YSJ
4h 15m
1 stop
Air Canada Logo
4:30 p.m. - 9:27 p.m.
YSJ
-
BOS
5h 57m
1 stop
C$ 917Air Canada
Wed, 3 Jun - Sat, 6 Jun
Air Canada Logo
5:00 p.m. - 11:52 p.m.
BOS
-
YSJ
5h 52m
1 stop
Air Canada Logo
4:30 p.m. - 9:27 p.m.
YSJ
-
BOS
5h 57m
1 stop
C$ 924Air Canada
Fri, 8 May - Fri, 15 May
Air Canada Logo
5:10 a.m. - 3:50 p.m.
BOS
-
YSJ
9h 40m
2 stops
Air Canada Logo
4:30 p.m. - 9:27 p.m.
YSJ
-
BOS
5h 57m
1 stop
C$ 937Air Canada
Wed, 3 Jun - Sat, 6 Jun
Air Canada Logo
10:45 a.m. - 11:52 p.m.
BOS
-
YSJ
12h 07m
1 stop
Air Canada Logo
4:30 p.m. - 9:27 p.m.
YSJ
-
BOS
5h 57m
1 stop
C$ 959Air Canada
Wed, 6 May - Wed, 13 May
Air Canada Logo
5:30 a.m. - 11:15 a.m.
BOS
-
YSJ
4h 45m
1 stop
Air Canada Logo
5:35 a.m. - 9:59 a.m.
YSJ
-
BOS
5h 24m
1 stop
C$ 970Air Canada
Wed, 22 Apr - Sat, 25 Apr
Air Canada Logo
6:45 p.m. - 11:10 a.m.
BOS
-
YSJ
15h 25m
2 stops
Air Canada Logo
5:35 a.m. - 9:59 a.m.
YSJ
-
BOS
5h 24m
1 stop
C$ 1,022Air Canada
Wed, 22 Apr - Sat, 25 Apr
Air Canada Logo
5:10 a.m. - 3:50 p.m.
BOS
-
YSJ
9h 40m
2 stops
Air Canada Logo
5:35 a.m. - 2:47 p.m.
YSJ
-
BOS
10h 12m
2 stops
C$ 1,031Air Canada
Wed, 3 Jun - Sat, 6 Jun
Air Canada Logo
5:10 a.m. - 3:40 p.m.
BOS
-
YSJ
9h 30m
2 stops
Air Canada Logo
12:50 p.m. - 9:27 p.m.
YSJ
-
BOS
9h 37m
2 stops
C$ 1,036Air Canada
Sat, 9 May - Sat, 16 May
United Airlines Logo
10:35 a.m. - 3:40 p.m.
BOS
-
YSJ
4h 05m
1 stop
United Airlines Logo
5:35 a.m. - 11:46 a.m.
YSJ
-
BOS
7h 11m
1 stop
C$ 1,058United Airlines
Thu, 7 May - Thu, 14 May
United Airlines Logo
7:00 a.m. - 3:40 p.m.
BOS
-
YSJ
7h 40m
2 stops
United Airlines Logo
4:30 p.m. - 9:27 p.m.
YSJ
-
BOS
5h 57m
1 stop
C$ 1,065United Airlines
Sun, 10 May - Sun, 17 May

United Airlines flights from Boston to Saint John

Our best United Airlines deals on Boston to Saint John flight tickets
United Airlines
7 May
BOS10:35 a.m.Boston Logan Intl
4h 05m
1 stop
YSJ3:40 p.m.Saint John
14 May
YSJ5:35 a.m.Saint John
7h 11m
1 stop
BOS11:46 a.m.Boston Logan Intl
C$ 1,058
United Airlines
10 May
BOS7:00 a.m.Boston Logan Intl
7h 40m
2 stops
YSJ3:40 p.m.Saint John
17 May
YSJ4:30 p.m.Saint John
5h 57m
1 stop
BOS9:27 p.m.Boston Logan Intl
C$ 1,065
United Airlines
7 May
BOS6:00 a.m.Boston Logan Intl
8h 40m
2 stops
YSJ3:40 p.m.Saint John
14 May
YSJ12:50 p.m.Saint John
6h 09m
1 stop
BOS5:59 p.m.Boston Logan Intl
C$ 1,072

Air Canada flights from Boston to Saint John

Our best Air Canada deals on Boston to Saint John flight tickets
Air Canada
3 Jun
BOS10:35 a.m.Boston Logan Intl
4h 15m
1 stop
YSJ3:50 p.m.Saint John
6 Jun
YSJ4:30 p.m.Saint John
5h 57m
1 stop
BOS9:27 p.m.Boston Logan Intl
C$ 917
Air Canada
8 May
BOS5:00 p.m.Boston Logan Intl
5h 52m
1 stop
YSJ11:52 p.m.Saint John
15 May
YSJ4:30 p.m.Saint John
5h 57m
1 stop
BOS9:27 p.m.Boston Logan Intl
C$ 924
Air Canada
3 Jun
BOS5:10 a.m.Boston Logan Intl
9h 40m
2 stops
YSJ3:50 p.m.Saint John
6 Jun
YSJ4:30 p.m.Saint John
5h 57m
1 stop
BOS9:27 p.m.Boston Logan Intl
C$ 937

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 26 March 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

Wed 3/6

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

1 stop4h 15m

Saint John

Sat 6/6

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

1 stop5h 57m

C$ 917

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Fri 8/5

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

1 stop5h 52m

Saint John

Fri 15/5

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

1 stop5h 57m

C$ 924

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 3/6

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

2 stops9h 40m

Saint John

Sat 6/6

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

1 stop5h 57m

C$ 937

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 6/5

10:45 a.m.-11:52 p.m.

1 stop12h 07m

Saint John

Wed 13/5

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

1 stop5h 57m

C$ 959
Quickest round-trip

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 22/4

5:30 a.m.-11:15 a.m.

1 stop4h 45m

Saint John

Sat 25/4

5:35 a.m.-9:59 a.m.

1 stop5h 24m

C$ 970

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 22/4

6:45 p.m.-11:10 a.m.

2 stops15h 25m

Saint John

Sat 25/4

5:35 a.m.-9:59 a.m.

1 stop5h 24m

C$ 1,022

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 3/6

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

2 stops9h 40m

Saint John

Sat 6/6

5:35 a.m.-2:47 p.m.

2 stops10h 12m

C$ 1,031

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sat 9/5

5:10 a.m.-3:40 p.m.

2 stops9h 30m

Saint John

Sat 16/5

12:50 p.m.-9:27 p.m.

2 stops9h 37m

C$ 1,036

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 7/5

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

1 stop4h 05m

Saint John

Thu 14/5

5:35 a.m.-11:46 a.m.

1 stop7h 11m

C$ 1,058

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sun 10/5

7:00 a.m.-3:40 p.m.

2 stops7h 40m

Saint John

Sun 17/5

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

1 stop5h 57m

C$ 1,065

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Saint John from

How to get the cheapest flight ticket from Boston to Saint John

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Boston Logan Intl to Saint John?

Air Canada and United Airlines are the most popular carriers operating from Boston Logan Intl to Saint John

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

4h 05m

Direct flights

None
The fastest flight from Boston to Saint John takes 4h 05m
There are no direct flights from Boston to Saint John. There are no popular flight routes from Boston to Saint John.
Search flight deals

  • How far is Boston Logan Intl to Saint John by plane?

    Saint John is 514.4 km away from Boston Logan Intl. 4h 05m 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.

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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