$1,334 Cheap Flights from Buffalo (BUF) to Jeju (CJU)

View $1,334 flight on Sun, Aug 17, 2025Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Jeju Intl. Airport (CJU)

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Cheap Flights from Buffalo to Jeju (BUF-CJU)

Prices were available within the past 7 days and start at $1,334 for one-way flights and $1,362 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Wed, Sep 10 - Mon, Sep 22
BUF
Buffalo
CJU
Jeju City
$1,362 Roundtrip, found 4 days ago
$1,362
Roundtrip
found 4 days ago
Select China Eastern Airlines flight, departing Wed, Sep 10 from Buffalo to Jeju City, returning Mon, Sep 22, priced at $1,362 found 4 days ago
American Airlines
Sun, Sep 7 - Wed, Sep 24
BUF
Buffalo
CJU
Jeju City
$1,528 Roundtrip, found 4 days ago
$1,528
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Sep 7 from Buffalo to Jeju City, returning Wed, Sep 24, priced at $1,528 found 4 days ago
Korean Air
Mon, Sep 1 - Sat, Sep 13
BUF
Buffalo
CJU
Jeju City
$1,819 Roundtrip, found 4 days ago
$1,819
Roundtrip
found 4 days ago
Select Korean Air flight, departing Mon, Sep 1 from Buffalo to Jeju City, returning Sat, Sep 13, priced at $1,819 found 4 days ago
Korean Air
Mon, Sep 1 - Wed, Sep 17
BUF
Buffalo
CJU
Jeju City
$1,819 Roundtrip, found 4 days ago
$1,819
Roundtrip
found 4 days ago
Select Korean Air flight, departing Mon, Sep 1 from Buffalo to Jeju City, returning Wed, Sep 17, priced at $1,819 found 4 days ago
Korean Air
Fri, Sep 19 - Sun, Oct 5
BUF
Buffalo
CJU
Jeju City
$1,869 Roundtrip, found 4 days ago
$1,869
Roundtrip
found 4 days ago
Select Korean Air flight, departing Fri, Sep 19 from Buffalo to Jeju City, returning Sun, Oct 5, priced at $1,869 found 4 days ago
Korean Air
Fri, Sep 26 - Tue, Oct 14
BUF
Buffalo
CJU
Jeju City
$1,869 Roundtrip, found 4 days ago
$1,869
Roundtrip
found 4 days ago
Select Korean Air flight, departing Fri, Sep 26 from Buffalo to Jeju City, returning Tue, Oct 14, priced at $1,869 found 4 days ago
China Eastern Airlines
Mon, Aug 25 - Mon, Sep 8
BUF
Buffalo
CJU
Jeju City
$1,916 Roundtrip, found 4 days ago
$1,916
Roundtrip
found 4 days ago
Select China Eastern Airlines flight, departing Mon, Aug 25 from Buffalo to Jeju City, returning Mon, Sep 8, priced at $1,916 found 4 days ago
Korean Air
Wed, Aug 20 - Wed, Aug 27
BUF
Buffalo
CJU
Jeju City
$1,919 Roundtrip, found 4 days ago
$1,919
Roundtrip
found 4 days ago
Select Korean Air flight, departing Wed, Aug 20 from Buffalo to Jeju City, returning Wed, Aug 27, priced at $1,919 found 4 days ago
JetBlue Airways
Mon, Aug 18 - Fri, Aug 29
BUF
Buffalo
CJU
Jeju City
$2,102 Roundtrip, found 4 days ago
$2,102
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Mon, Aug 18 from Buffalo to Jeju City, returning Fri, Aug 29, priced at $2,102 found 4 days ago
Delta
Mon, Aug 18 - Mon, Aug 25
BUF
Buffalo
CJU
Jeju City
$2,216 Roundtrip, found 4 days ago
$2,216
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Aug 18 from Buffalo to Jeju City, returning Mon, Aug 25, priced at $2,216 found 4 days ago

Alternative airports near Jeju City

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Jeju Intl. CJU. Cheapest and Closest option available. Average driving time to city center is 4 minutes. Flights from $2,266
CJU
Jeju Intl.
CheapestClosest
Average driving time to city center4 min
Flights from $2,266
Flights from Buffalo (BUF) to Jeju (CJU)
Origin airport
Buffalo Niagara Intl.
Destination airport
Jeju Intl.
Roundtrip price
$1,361
Distance
6919 mi

Buffalo to Jeju Flights

The cheapest times to fly from Buffalo to Jeju

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Buffalo to Jeju are during the month of September. You can find some of the cheapest flights from Buffalo to Jeju with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to Jeju

Sunday is one of the best days to book for cheap flights from Buffalo to Jeju: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Buffalo to Jeju

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Buffalo to Jeju in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,334 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Buffalo to Jeju flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Buffalo to Jeju airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Buffalo Niagara Intl. Airport (BUF) to Jeju Intl. Airport (CJU) cost?
Discover the latest flight deals from BUF to CJU by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BUF to CJU?
The cheapest flights from BUF to CJU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BUF to CJU?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BUF to CJU. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Jeju Intl. Airport (CJU)?
There aren't any daily nonstop flights departing from Buffalo Niagara Intl. Airport (BUF) to Jeju Intl. Airport (CJU). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from BUF to CJU?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Jeju Intl. Airport (CJU)?
Select a flight from Buffalo Niagara Intl. Airport (BUF) to Jeju Intl. Airport (CJU) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Buffalo Niagara Intl. Airport (BUF) to Jeju Intl. Airport (CJU) last-minute?
Holding off until right before your break to book a ticket from BUF to CJU often results in higher prices. While it's possible to find some last-minute discounts, they're not always guaranteed. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a BUF to CJU flight and hotel package?
Compared with arranging hotels and flights separately, booking a BUF to CJU flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place takes the hassle out of travel planning. Simply secure your flights and select from our wide range of stays, then personalize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Jeju Intl. Airport (CJU)?
If you reserved your BUF to CJU flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.