Cheap flights from Boston to Jeju-do from $1,398

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Jeju-do departing on 2/21. 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
0 bags

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Cheap round-trip flights

Cathay Pacific Logo
12:30 am - 6:40 amBOS-CJU
40h 10m1 stop
Cathay Pacific Logo
7:55 am - 10:00 pmCJU-BOS
28h 05m1 stop
$1,398Cathay Pacific
Find Deal
Sat, Feb 21 - Thu, Feb 26
Cathay Pacific Logo
12:30 am - 6:40 amBOS-CJU
40h 10m1 stop
Cathay Pacific Logo
7:55 am - 10:00 pmCJU-BOS
28h 05m1 stop
$1,399Cathay Pacific
Find Deal
Sat, Feb 21 - Thu, Feb 26
Cathay Pacific Logo
1:40 am - 6:20 amBOS-CJU
39h 40m1 stop
Cathay Pacific Logo
7:55 am - 11:00 pmCJU-BOS
28h 05m1 stop
$1,408Cathay Pacific
Find Deal
Tue, Sep 30 - Thu, Oct 23

Cathay Pacific flights from Boston to Jeju-do

Our best Cathay Pacific deals on Boston to Jeju-do flight tickets
Cathay Pacific
Feb 21
BOS12:30 amBoston Logan Intl
40h 10m
1 stop
CJU6:40 amJeju City
Feb 26
CJU7:55 amJeju City
28h 05m
1 stop
BOS10:00 pmBoston Logan Intl
Cathay Pacific
Feb 21
BOS12:30 amBoston Logan Intl
40h 10m
1 stop
CJU6:40 amJeju City
Feb 26
CJU7:55 amJeju City
28h 05m
1 stop
BOS10:00 pmBoston Logan Intl
Cathay Pacific
Sep 30
BOS1:40 amBoston Logan Intl
39h 40m
1 stop
CJU6:20 amJeju City
Oct 23
CJU7:55 amJeju City
28h 05m
1 stop
BOS11:00 pmBoston Logan Intl

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Jeju-do 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 17, 2025.
Use the filters below to find and compare flights from Boston to Jeju-do that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonJeju City

BOS - CJU

BOSCJU

Boston Logan Intl

Sat 2/21

12:30 am-6:40 am

1 stop40h 10m

Jeju City

Thu 2/26

7:55 am-10:00 pm

1 stop28h 05m

$1,398

BostonJeju City

BOS - CJU

BOSCJU

Boston Logan Intl

Sat 2/21

12:30 am-6:40 am

1 stop40h 10m

Jeju City

Thu 2/26

7:55 am-10:00 pm

1 stop28h 05m

$1,399

BostonJeju City

BOS - CJU

BOSCJU

Boston Logan Intl

Tue 9/30

1:40 am-6:20 am

1 stop39h 40m

Jeju City

Thu 10/23

7:55 am-11:00 pm

1 stop28h 05m

$1,408

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Boston to Jeju-do flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Jeju-do

Direct flights

None
There are no direct flights from Boston to Jeju-do. There are no popular flight routes from Boston to Jeju-do.
  • When did momondo last update prices for flights from Boston Logan Intl Airport to Jeju-do?

    Prices for flights from Boston Logan Intl Airport to Jeju-do are updated daily.

  • How old do you have to be to fly from Boston Logan Intl Airport to Jeju-do?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Jeju-do.

  • What documentation or ID do you need to fly to Jeju-do?

    The required travel and health documents for your Jeju-do trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Jeju-do. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Boston to Jeju-do?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Boston from Jeju-do. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Boston to Jeju-do with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Jeju-do?

It is quick and easy to find Boston to Jeju-do flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Jeju-do that suits you.

Can I find flights from Boston to Jeju-do with flexible booking policies on momondo?

Flights from Boston to Jeju-do with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boston to Jeju-do?

Once you have performed a search for Boston to Jeju-do flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Boston to Jeju-do right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Jeju-do now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Jeju-do and let you know when they change.

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1 adult
Fri 10/17
Fri 10/24

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