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Cheap flights from Boston to Saint John from C$ 235

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 24/9. 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

Find the cheapest flights from Boston to Saint John

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:05 a.m. - 10:00 a.m.BOS  Boston Logan Intl-YSJ Saint John
22h 55m1 stop Toronto Pearson Intl
Multiple Airlines Logo
10:45 a.m. - 9:05 a.m.YSJ  Saint John-BOS Boston Logan Intl
23h 20m1 stop Toronto Pearson Intl
C$ 575Multiple Airlines
Thu, 17 Sep - Mon, 21 Sep
Multiple Airlines Logo
2:20 p.m. - 10:00 a.m.BOS  Boston Logan Intl-YSJ Saint John
18h 40m2 stops Ottawa Toronto Pearson Intl
Multiple Airlines Logo
10:45 a.m. - 6:35 p.m.YSJ  Saint John-BOS Boston Logan Intl
8h 50m1 stop Toronto Pearson Intl
C$ 677Multiple Airlines
Thu, 17 Sep - Mon, 21 Sep
Multiple Airlines Logo
10:05 a.m. - 11:51 p.m.BOS  Boston Logan Intl-YSJ Saint John
12h 46m1 stop Toronto Pearson Intl
Multiple Airlines Logo
4:40 p.m. - 9:05 a.m.YSJ  Saint John-BOS Boston Logan Intl
17h 25m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
C$ 802Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep
Multiple Airlines Logo
10:05 a.m. - 11:51 p.m.BOS  Boston Logan Intl-YSJ Saint John
12h 46m1 stop Toronto Pearson Intl
Multiple Airlines Logo
5:00 a.m. - 6:35 p.m.YSJ  Saint John-BOS Boston Logan Intl
14h 35m1 stop Toronto Pearson Intl
C$ 811Multiple Airlines
Wed, 16 Sep - Wed, 23 Sep
Multiple Airlines Logo
10:05 a.m. - 10:00 a.m.BOS  Boston Logan Intl-YSJ Saint John
22h 55m1 stop Toronto Pearson Intl
Multiple Airlines Logo
6:55 a.m. - 5:25 p.m.YSJ  Saint John-BOS Boston Logan Intl
11h 30m2 stops Montreal St Hubert Toronto Island
C$ 840Multiple Airlines
Thu, 10 Sep - Wed, 16 Sep
Air Canada Logo
3:35 p.m. - 11:51 p.m.BOS  Boston Logan Intl-YSJ Saint John
7h 16m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
12:50 p.m. - 9:26 p.m.YSJ  Saint John-BOS Boston Logan Intl
9h 36m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
C$ 843Air Canada
Wed, 16 Sep - Wed, 23 Sep
Air Canada Logo
4:55 p.m. - 1:25 a.m.BOS  Boston Logan Intl-YSJ Saint John
7h 30m1 stop Toronto Pearson Intl
Air Canada Logo
12:50 p.m. - 6:04 p.m.YSJ  Saint John-BOS Boston Logan Intl
6h 14m1 stop Toronto Pearson Intl
C$ 843Air Canada
Mon, 7 Sep - Mon, 14 Sep
Air Canada Logo
7:15 p.m. - 1:25 a.m.BOS  Boston Logan Intl-YSJ Saint John
5h 10m1 stop Toronto Pearson Intl
Air Canada Logo
5:00 a.m. - 9:55 a.m.YSJ  Saint John-BOS Boston Logan Intl
5h 55m1 stop Toronto Pearson Intl
C$ 850Air Canada
Sat, 5 Sep - Tue, 8 Sep
Air Canada Logo
4:55 p.m. - 1:25 a.m.BOS  Boston Logan Intl-YSJ Saint John
7h 30m1 stop Toronto Pearson Intl
Air Canada Logo
5:00 a.m. - 11:47 a.m.YSJ  Saint John-BOS Boston Logan Intl
7h 47m1 stop Toronto Pearson Intl
C$ 850Air Canada
Thu, 3 Sep - Sat, 5 Sep
Air Canada Logo
3:35 p.m. - 1:25 a.m.BOS  Boston Logan Intl-YSJ Saint John
8h 50m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
12:50 p.m. - 6:04 p.m.YSJ  Saint John-BOS Boston Logan Intl
6h 14m1 stop Toronto Pearson Intl
C$ 855Air Canada
Mon, 7 Sep - Mon, 14 Sep

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Air Canada flights from Boston to Saint John

Our best Air Canada deals on Boston to Saint John flight tickets
Air Canada
7 Sep
BOS4:55 p.m.Boston Logan Intl
7h 30m
1 stop
YSJ1:25 a.m.Saint John
14 Sep
YSJ12:50 p.m.Saint John
6h 14m
1 stop
BOS6:04 p.m.Boston Logan Intl
C$ 843
Air Canada
3 Sep
BOS4:55 p.m.Boston Logan Intl
7h 30m
1 stop
YSJ1:25 a.m.Saint John
5 Sep
YSJ5:00 a.m.Saint John
7h 47m
1 stop
BOS11:47 a.m.Boston Logan Intl
C$ 850
Air Canada
7 Sep
BOS3:35 p.m.Boston Logan Intl
8h 50m
2 stops
YSJ1:25 a.m.Saint John
14 Sep
YSJ12:50 p.m.Saint John
6h 14m
1 stop
BOS6:04 p.m.Boston Logan Intl
C$ 855

United Airlines flights from Boston to Saint John

Our best United Airlines deals on Boston to Saint John flight tickets
United Airlines
1 Oct
BOS5:45 a.m.Boston Logan Intl
9h 14m
2 stops
YSJ3:59 p.m.Saint John
8 Oct
YSJ5:40 a.m.Saint John
9h 55m
2 stops
BOS2:35 p.m.Boston Logan Intl
C$ 1,240
United Airlines
24 Sep
BOS10:40 a.m.Boston Logan Intl
4h 19m
1 stop
YSJ3:59 p.m.Saint John
1 Oct
YSJ4:40 p.m.Saint John
5h 46m
1 stop
BOS9:26 p.m.Boston Logan Intl
C$ 1,266
United Airlines
26 Sep
BOS10:40 a.m.Boston Logan Intl
4h 19m
1 stop
YSJ3:59 p.m.Saint John
3 Oct
YSJ4:40 p.m.Saint John
5h 46m
1 stop
BOS9:26 p.m.Boston Logan Intl
C$ 1,268

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 13 August 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 Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Thu 17/9

10:05 a.m.-10:00 a.m.

1 stop22h 55m

Saint John

Mon 21/9

10:45 a.m.-9:05 a.m.

1 stop23h 20m

C$ 575

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Thu 17/9

2:20 p.m.-10:00 a.m.

2 stops18h 40m

Saint John

Mon 21/9

10:45 a.m.-6:35 p.m.

1 stop8h 50m

C$ 677

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Wed 16/9

10:05 a.m.-11:51 p.m.

1 stop12h 46m

Saint John

Wed 23/9

4:40 p.m.-9:05 a.m.

2 stops17h 25m

C$ 802

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Wed 16/9

10:05 a.m.-11:51 p.m.

1 stop12h 46m

Saint John

Wed 23/9

5:00 a.m.-6:35 p.m.

1 stop14h 35m

C$ 811

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Thu 10/9

10:05 a.m.-10:00 a.m.

1 stop22h 55m

Saint John

Wed 16/9

6:55 a.m.-5:25 p.m.

2 stops11h 30m

C$ 840

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Wed 16/9

3:35 p.m.-11:51 p.m.

2 stops7h 16m

Saint John

Wed 23/9

12:50 p.m.-9:26 p.m.

2 stops9h 36m

C$ 843

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Mon 7/9

4:55 p.m.-1:25 a.m.

1 stop7h 30m

Saint John

Mon 14/9

12:50 p.m.-6:04 p.m.

1 stop6h 14m

C$ 843
Quickest round-trip

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Sat 5/9

7:15 p.m.-1:25 a.m.

1 stop5h 10m

Saint John

Tue 8/9

5:00 a.m.-9:55 a.m.

1 stop5h 55m

C$ 850

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Thu 3/9

4:55 p.m.-1:25 a.m.

1 stop7h 30m

Saint John

Sat 5/9

5:00 a.m.-11:47 a.m.

1 stop7h 47m

C$ 850

BostonSaint John

BOS Boston Logan Intl - YSJ Saint John

BOSYSJ

Boston Logan Intl

Mon 7/9

3:35 p.m.-1:25 a.m.

2 stops8h 50m

Saint John

Mon 14/9

12:50 p.m.-6:04 p.m.

1 stop6h 14m

C$ 855

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 is the most popular carrier 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

3h 55m

Direct flights

None
The fastest flight from Boston to Saint John takes 3h 55m
There are no direct flights from Boston to Saint John. There are no popular flight routes from Boston to Saint John.
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Frequently asked questions about flying 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. 3h 55m 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
Middleton

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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