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Cheap flights from Buffalo to Saint John from $470

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to Saint John departing on 9/21. 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 Buffalo to Saint John

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
10:30 am - 1:25 amBUF  Buffalo-YSJ Saint John
13h 55m2 stops Chicago O'Hare Intl Toronto Pearson Intl
Air Canada Logo
4:40 pm - 9:08 amYSJ  Saint John-BUF Buffalo
17h 28m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$864Air Canada
Wed, Sep 2 - Tue, Sep 8
United Airlines Logo
7:00 am - 5:19 pmBUF  Buffalo-YSJ Saint John
9h 19m2 stops Chicago O'Hare Intl Toronto Pearson Intl
United Airlines Logo
11:05 am - 10:37 pmYSJ  Saint John-BUF Buffalo
12h 32m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$1,004United Airlines
Sun, Dec 13 - Tue, Dec 15
United Airlines Logo
7:00 am - 5:19 pmBUF  Buffalo-YSJ Saint John
9h 19m2 stops Chicago O'Hare Intl Toronto Pearson Intl
United Airlines Logo
11:05 am - 10:37 pmYSJ  Saint John-BUF Buffalo
12h 32m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$1,015United Airlines
Sun, Dec 13 - Tue, Dec 15

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United Airlines flights from Buffalo to Saint John

Our best United Airlines deals on Buffalo to Saint John flight tickets
United Airlines
Dec 13
BUF7:00 amBuffalo
9h 19m
2 stops
YSJ5:19 pmSaint John
Dec 15
YSJ11:05 amSaint John
12h 32m
2 stops
BUF10:37 pmBuffalo
$1,004
United Airlines
Dec 13
BUF7:00 amBuffalo
9h 19m
2 stops
YSJ5:19 pmSaint John
Dec 15
YSJ11:05 amSaint John
12h 32m
2 stops
BUF10:37 pmBuffalo
$1,015

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo 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 August 10, 2026.
Use the filters below to find and compare flights from Buffalo to Saint John that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloSaint John

BUF Buffalo - YSJ Saint John

BUFYSJ

Buffalo

Wed 9/2

10:30 am-1:25 am

2 stops13h 55m

Saint John

Tue 9/8

4:40 pm-9:08 am

2 stops17h 28m

$864
Quickest round-trip

BuffaloSaint John

BUF Buffalo - YSJ Saint John

BUFYSJ

Buffalo

Sun 12/13

7:00 am-5:19 pm

2 stops9h 19m

Saint John

Tue 12/15

11:05 am-10:37 pm

2 stops12h 32m

$1,004

BuffaloSaint John

BUF Buffalo - YSJ Saint John

BUFYSJ

Buffalo

Sun 12/13

7:00 am-5:19 pm

2 stops9h 19m

Saint John

Tue 12/15

11:05 am-10:37 pm

2 stops12h 32m

$1,015
Cheapest one-way
Quickest one-way

BuffaloSaint John

BUF Buffalo - YSJ Saint John

BUFYSJ

Buffalo

Mon 9/21

6:55 am-3:59 pm

2 stops8h 04m

$470

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Buffalo 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 Buffalo to Saint John?

United Airlines is the most popular carrier operating from Buffalo to Saint John

When to book flights from Buffalo to Saint John

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

Cheap Buffalo to Saint John (BUF to YSJ) flight deals and tips

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

Fastest flight time

9h 00m

Direct flights

None
The fastest flight from Buffalo to Saint John takes 9h 00m
There are no direct flights from Buffalo to Saint John. There are no popular flight routes from Buffalo to Saint John.
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Frequently asked questions about flying from Buffalo to Saint John

  • How far is Buffalo to Saint John by plane?

    A flight from Buffalo to Saint John will travel around 655.6 mi. In terms of flight time, this usually takes a little over 9h 00m.

  • When did momondo last update prices for flights from Buffalo Airport to Saint John Airport?

    Prices for flights from Buffalo Airport to Saint John Airport are updated daily.

  • How old do you have to be to fly from Buffalo 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 Buffalo Airport to Saint John Airport.

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

    The necessary travel and health documents for your Saint John Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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 Buffalo 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 Buffalo.

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

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

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

Once all potential Buffalo to Saint John flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Buffalo to Saint John flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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