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St John

$403+ 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 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YSJ
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Find flight deals from Buffalo to St John

Best flights from Buffalo to St John
Discover carefully curated flight deals from Buffalo to St John that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 6, 2025.

This United Airlines deal was found by Cheapflights users on 11/5. 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.
Sun 4/510:20 amBUF - YSJ
2 stops12h 09mUnited Airlines
Mon 4/611:55 amYSJ - BUF
2 stops11h 42mUnited Airlines
Deal found 11/5$869

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 November 6, 2025.

Round-trip from

$869
(United Airlines)

One-way from

$403
(Kiwi.com)
From Buffalo to Saint John
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One-way flight from Buffalo to Saint John
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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 November 6, 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

Sun 4/5

10:20 am-11:29 pm

2 stops12h 09m

Saint John

Mon 4/6

11:55 am-10:37 pm

2 stops11h 42m

$869

BuffaloSaint John

BUF - YSJ

BUFYSJ

Buffalo

Sat 12/20

7:05 pm-3:45 pm

3 stops43h 40m

$403

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

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.

  • How long is the flight from Buffalo to Saint John?

    Airlines like United Airlines fly from Buffalo to Saint John in about 12h 09m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 657 mi.

  • 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.

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