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Cheap flights from Boston to Saint John from $205

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 9/27. 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
3:35 pm - 10:00 am
BOS
-
YSJ
17h 25m
2 stops
Multiple Airlines Logo
5:00 am - 6:04 pm
YSJ
-
BOS
14h 04m
1 stop
$452Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
6:55 pm - 10:00 am
BOS
-
YSJ
14h 05m
1 stop
Multiple Airlines Logo
5:00 am - 6:04 pm
YSJ
-
BOS
14h 04m
1 stop
$454Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
3:35 pm - 10:00 am
BOS
-
YSJ
17h 25m
2 stops
Multiple Airlines Logo
5:00 am - 9:26 pm
YSJ
-
BOS
17h 26m
2 stops
$459Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
3:55 pm - 10:00 am
BOS
-
YSJ
17h 05m
2 stops
Multiple Airlines Logo
10:45 am - 6:35 pm
YSJ
-
BOS
8h 50m
1 stop
$477Multiple Airlines
Thu, Sep 3 - Fri, Sep 18
Multiple Airlines Logo
10:05 am - 10:00 am
BOS
-
YSJ
22h 55m
1 stop
Multiple Airlines Logo
10:45 am - 6:35 pm
YSJ
-
BOS
8h 50m
1 stop
$478Multiple Airlines
Thu, Sep 3 - Fri, Sep 18
Multiple Airlines Logo
3:55 pm - 10:00 am
BOS
-
YSJ
17h 05m
2 stops
Multiple Airlines Logo
10:45 am - 4:00 pm
YSJ
-
BOS
30h 15m
3 stops
$600Multiple Airlines
Thu, Sep 3 - Fri, Sep 18
Multiple Airlines Logo
7:30 pm - 10:00 am
BOS
-
YSJ
13h 30m
1 stop
Multiple Airlines Logo
10:45 am - 4:00 pm
YSJ
-
BOS
30h 15m
3 stops
$610Multiple Airlines
Thu, Sep 3 - Fri, Sep 18
Multiple Airlines Logo
7:00 am - 11:15 pm
BOS
-
YSJ
15h 15m
2 stops
Multiple Airlines Logo
10:45 am - 6:35 pm
YSJ
-
BOS
8h 50m
1 stop
$644Multiple Airlines
Mon, Sep 7 - Mon, Sep 14
Air Canada Logo
10:40 am - 4:00 pm
BOS
-
YSJ
4h 20m
1 stop
Air Canada Logo
12:50 pm - 6:22 pm
YSJ
-
BOS
6h 32m
1 stop
$647Air Canada
Sun, Aug 30 - Wed, Sep 2
Air Canada Logo
4:55 pm - 1:25 am
BOS
-
YSJ
7h 30m
1 stop
Air Canada Logo
12:50 pm - 6:04 pm
YSJ
-
BOS
6h 14m
1 stop
$654Air Canada
Mon, Sep 7 - Mon, Sep 14

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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
Aug 30
BOS10:40 amBoston Logan Intl
4h 20m
1 stop
YSJ4:00 pmSaint John
Sep 2
YSJ12:50 pmSaint John
6h 32m
1 stop
BOS6:22 pmBoston Logan Intl
$647
Air Canada
Sep 7
BOS4:55 pmBoston Logan Intl
7h 30m
1 stop
YSJ1:25 amSaint John
Sep 14
YSJ12:50 pmSaint John
6h 14m
1 stop
BOS6:04 pmBoston Logan Intl
$654
Air Canada
Aug 30
BOS10:40 amBoston Logan Intl
4h 20m
1 stop
YSJ4:00 pmSaint John
Sep 2
YSJ12:50 pmSaint John
9h 37m
2 stops
BOS9:27 pmBoston Logan Intl
$656

United Airlines flights from Boston to Saint John

Our best United Airlines deals on Boston to Saint John flight tickets
United Airlines
Sep 7
BOS10:40 amBoston Logan Intl
4h 20m
1 stop
YSJ4:00 pmSaint John
Sep 14
YSJ4:40 pmSaint John
5h 46m
1 stop
BOS9:26 pmBoston Logan Intl
$877
United Airlines
Sep 7
BOS10:40 amBoston Logan Intl
4h 20m
1 stop
YSJ4:00 pmSaint John
Sep 14
YSJ4:40 pmSaint John
9h 30m
2 stops
BOS1:10 amBoston Logan Intl
$892
United Airlines
Aug 21
BOS10:40 amBoston Logan Intl
4h 20m
1 stop
YSJ4:00 pmSaint John
Aug 28
YSJ4:40 pmSaint John
5h 47m
1 stop
BOS9:27 pmBoston Logan Intl
$919

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 832,500 searches. Data last updated July 26, 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

Tue 9/8

3:35 pm-10:00 am

2 stops17h 25m

Saint John

Tue 9/15

5:00 am-6:04 pm

1 stop14h 04m

$452

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 9/8

6:55 pm-10:00 am

1 stop14h 05m

Saint John

Tue 9/15

5:00 am-6:04 pm

1 stop14h 04m

$454

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 9/8

3:35 pm-10:00 am

2 stops17h 25m

Saint John

Tue 9/15

5:00 am-9:26 pm

2 stops17h 26m

$459

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 9/3

3:55 pm-10:00 am

2 stops17h 05m

Saint John

Fri 9/18

10:45 am-6:35 pm

1 stop8h 50m

$477

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 9/3

10:05 am-10:00 am

1 stop22h 55m

Saint John

Fri 9/18

10:45 am-6:35 pm

1 stop8h 50m

$478

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 9/3

3:55 pm-10:00 am

2 stops17h 05m

Saint John

Fri 9/18

10:45 am-4:00 pm

3 stops30h 15m

$600

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 9/3

7:30 pm-10:00 am

1 stop13h 30m

Saint John

Fri 9/18

10:45 am-4:00 pm

3 stops30h 15m

$610

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 9/7

7:00 am-11:15 pm

2 stops15h 15m

Saint John

Mon 9/14

10:45 am-6:35 pm

1 stop8h 50m

$644
Quickest round-trip

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Sun 8/30

10:40 am-4:00 pm

1 stop4h 20m

Saint John

Wed 9/2

12:50 pm-6:22 pm

1 stop6h 32m

$647

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 9/7

4:55 pm-1:25 am

1 stop7h 30m

Saint John

Mon 9/14

12:50 pm-6:04 pm

1 stop6h 14m

$654

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

4h 19m

Direct flights

None
The fastest flight from Boston to Saint John takes 4h 19m
There are no direct flights from Boston to Saint John. There are no popular flight routes from Boston to Saint John.
Search flight deals

Frequently asked questions about flying from Boston to Saint John

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

    Saint John is 319.7 mi away from Boston Logan Intl. Flights usually cover this in 4h 19m, depending on flying conditions and air traffic around both airports.

  • 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 updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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 required for your trip to Saint John Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint John Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Saint John?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Saint John. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Saint John from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Saint John from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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