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Cheap flights from Boston to Saint John from $223

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 10/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Boston to Saint John

Cheap round-trip flights

Air Canada Logo
5:30 am - 11:15 amBOS-YSJ
4h 45m1 stop
Air Canada Logo
11:55 am - 2:52 pmYSJ-BOS
3h 57m1 stop
$602Air Canada
Find Deal
Tue, Oct 28 - Wed, Oct 29
Air Canada Logo
6:00 am - 10:49 amBOS-YSJ
3h 49m1 stop
Air Canada Logo
6:40 pm - 10:39 pmYSJ-BOS
4h 59m1 stop
$608Air Canada
Find Deal
Mon, Oct 13 - Mon, Oct 20
Air Canada Logo
5:30 am - 11:15 amBOS-YSJ
4h 45m1 stop
Air Canada Logo
11:55 am - 6:02 pmYSJ-BOS
7h 07m2 stops
$613Air Canada
Find Deal
Tue, Oct 28 - Wed, Oct 29
Air Canada Logo
6:00 am - 5:40 pmBOS-YSJ
10h 40m2 stops
Air Canada Logo
6:40 pm - 10:39 pmYSJ-BOS
4h 59m1 stop
$618Air Canada
Find Deal
Mon, Oct 13 - Mon, Oct 20
Air Canada Logo
5:30 am - 5:14 pmBOS-YSJ
10h 44m2 stops
Air Canada Logo
5:40 am - 2:52 pmYSJ-BOS
10h 12m2 stops
$623Air Canada
Find Deal
Tue, Oct 28 - Wed, Oct 29
Logo
3:30 pm - 3:45 pmBOS-YSJ
23h 15m3 stops
Logo
12:00 pm - 9:35 amYSJ-BOS
22h 35m2 stops
$651
Find Deal
Wed, Oct 29 - Wed, Nov 5
Logo
6:55 pm - 3:45 pmBOS-YSJ
19h 50m3 stops
Logo
12:00 pm - 9:35 amYSJ-BOS
22h 35m2 stops
$659
Find Deal
Thu, Oct 30 - Thu, Nov 6
Logo
7:15 pm - 3:45 pmBOS-YSJ
19h 30m3 stops
Logo
10:45 am - 10:52 pmYSJ-BOS
37h 07m3 stops
$672
Find Deal
Tue, Oct 14 - Fri, Oct 17
Logo
6:55 pm - 3:45 pmBOS-YSJ
19h 50m3 stops
Logo
12:00 pm - 9:35 amYSJ-BOS
22h 35m2 stops
$688
Find Deal
Tue, Oct 28 - Tue, Nov 4
Logo
7:15 pm - 3:45 pmBOS-YSJ
19h 30m2 stops
Logo
10:45 am - 10:52 pmYSJ-BOS
37h 07m3 stops
$694
Find Deal
Tue, Oct 14 - Fri, Oct 17

Air Canada flights from Boston to Saint John

Our best Air Canada deals on Boston to Saint John flight tickets
Air Canada
Oct 28
BOS5:30 amBoston Logan Intl
4h 45m
1 stop
YSJ11:15 amSaint John
Oct 29
YSJ11:55 amSaint John
3h 57m
1 stop
BOS2:52 pmBoston Logan Intl
$602
Find similar
Air Canada
Oct 13
BOS6:00 amBoston Logan Intl
3h 49m
1 stop
YSJ10:49 amSaint John
Oct 20
YSJ6:40 pmSaint John
4h 59m
1 stop
BOS10:39 pmBoston Logan Intl
$608
Find similar
Air Canada
Oct 28
BOS5:30 amBoston Logan Intl
4h 45m
1 stop
YSJ11:15 amSaint John
Oct 29
YSJ11:55 amSaint John
7h 07m
2 stops
BOS6:02 pmBoston Logan Intl
$613
Find similar

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 September 15, 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

Tue 10/28

5:30 am-11:15 am

1 stop4h 45m

Saint John

Wed 10/29

11:55 am-2:52 pm

1 stop3h 57m

$602

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 10/13

6:00 am-10:49 am

1 stop3h 49m

Saint John

Mon 10/20

6:40 pm-10:39 pm

1 stop4h 59m

$608

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 10/28

5:30 am-11:15 am

1 stop4h 45m

Saint John

Wed 10/29

11:55 am-6:02 pm

2 stops7h 07m

$613

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Mon 10/13

6:00 am-5:40 pm

2 stops10h 40m

Saint John

Mon 10/20

6:40 pm-10:39 pm

1 stop4h 59m

$618

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 10/28

5:30 am-5:14 pm

2 stops10h 44m

Saint John

Wed 10/29

5:40 am-2:52 pm

2 stops10h 12m

$623

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Wed 10/29

3:30 pm-3:45 pm

3 stops23h 15m

Saint John

Wed 11/5

12:00 pm-9:35 am

2 stops22h 35m

$651

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Thu 10/30

6:55 pm-3:45 pm

3 stops19h 50m

Saint John

Thu 11/6

12:00 pm-9:35 am

2 stops22h 35m

$659

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 10/14

7:15 pm-3:45 pm

3 stops19h 30m

Saint John

Fri 10/17

10:45 am-10:52 pm

3 stops37h 07m

$672

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 10/28

6:55 pm-3:45 pm

3 stops19h 50m

Saint John

Tue 11/4

12:00 pm-9:35 am

2 stops22h 35m

$688

BostonSaint John

BOS - YSJ

BOSYSJ

Boston Logan Intl

Tue 10/14

7:15 pm-3:45 pm

2 stops19h 30m

Saint John

Fri 10/17

10:45 am-10:52 pm

3 stops37h 07m

$694

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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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 day to depart on your flight to Saint John?

The cheapest day to depart from Boston to Saint John is on a Saturday when prices can be found for as low as $607. On the other hand, Tuesday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $628.

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

Direct flights

None
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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  • 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 3h 49m, 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 many operators does momondo search for flights from Boston Logan Intl Airport to Saint John Airport?

  • 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.

  • What is the most popular airline from Boston to Saint John?

Best airlines flying from Boston to Saint John

Compare and see reviews for airlines that fly from Boston to Saint John with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $235Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights

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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