HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St John

$385+ Cheap flights from Buffalo (BUF) to Saint John (YSJ)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YSJ
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buffalo to St John with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Buffalo to St John

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to St John (YSJ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 13, 2025.

Round-trip from

$1,024
(United Airlines)

One-way from

$385
(United Airlines)
From Buffalo to Saint John
Search Deals
One-way flight from Buffalo to Saint John
Search Deals

Find flight deals from Buffalo to St John

Cheapest flights from Buffalo to St John
Explore the most affordable flight options available from Buffalo to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:00 amBUF - YSJ
2 stops10h 40mUnited Airlines
Tue 9/211:30 amYSJ - BUF
2 stops26h 52mUnited Airlines
Deal found 8/11$1,024

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to St 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, Cheapflights users made 2,558,603 searches. Data last updated August 13, 2025.
Use the filters below to find and compare flights from Buffalo to Saint John that are best for you.

Fly from

Buffalo

Fly to

St John

Route

Depart

Return

Price

BuffaloSaint John

BUF - YSJ

BUFYSJ

Buffalo

Thu 8/28

6:00 am-5:40 pm

2 stops10h 40m

Saint John

Tue 9/2

11:30 am-1:22 pm

2 stops26h 52m

$1,024

BuffaloSaint John

BUF - YSJ

BUFYSJ

Buffalo

Mon 9/22

6:00 am-12:11 am

2 stops17h 11m

$385

BuffaloSaint John

BUF - YSJ

BUFYSJ

Buffalo

Mon 8/25

6:00 am-1:00 am

2 stops18h 00m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Best time to book a flight from Buffalo to St John

Have a flexible travel schedule? Discover the best time to fly to St John from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to St John. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Buffalo to St John that include hotel bookings?

    Yes. In addition to deals on Buffalo to St John flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to St John?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to St John.

  • Can I find deals for business class flights from Buffalo to St John?

    Yes. Cheapflights offers flight deals from Buffalo to St John by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.