When did momondo last update prices for flights from Boston Logan Intl Airport to Cheongju Airport?

Prices for flights from Boston Logan Intl Airport to Cheongju Airport refresh daily.

How old do you have to be to fly from Boston Logan Intl Airport to Cheongju Airport?

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 Cheongju Airport.

What documentation or ID do you need to fly to Cheongju Airport?

The necessary travel and health documents for your Cheongju 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.

$1,534 Cheap Flights from Boston to Cheongju in 2026

Find the cheapest flights from Boston to Seoul

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:45 am - 9:55 pm

BOS

CJJ

27h 10m

3 stops

9:30 am - 5:40 pm

CJJ

BOS

45h 10m

3 stops

$1,534Multiple Airlines

Tue, Sep 1 - Wed, Sep 30

1:15 pm - 9:55 pm

BOS

CJJ

19h 40m

1 stop

11:40 pm - 8:55 pm

CJJ

BOS

34h 15m

3 stops

$1,737Multiple Airlines

Tue, Jul 14 - Mon, Jul 20

6:00 am - 8:45 pm

BOS

CJJ

25h 45m

2 stops

10:55 am - 9:50 am

CJJ

BOS

35h 55m

3 stops

$1,745Multiple Airlines

Thu, Jul 2 - Sun, Jul 5

6:00 am - 8:45 pm

BOS

CJJ

25h 45m

2 stops

10:55 am - 8:52 am

CJJ

BOS

34h 57m

2 stops

$1,757Multiple Airlines

Thu, Jul 2 - Sun, Jul 5

6:00 am - 9:55 pm

BOS

CJJ

26h 55m

3 stops

11:40 pm - 8:55 pm

CJJ

BOS

34h 15m

3 stops

$1,780Multiple Airlines

Tue, Jul 14 - Mon, Jul 20

5:45 am - 9:55 pm

BOS

CJJ

27h 10m

3 stops

9:30 am - 9:05 am

CJJ

BOS

36h 35m

3 stops

$1,875Multiple Airlines

Thu, Jul 2 - Sun, Jul 5

6:00 am - 9:55 pm

BOS

CJJ

26h 55m

2 stops

11:40 pm - 8:55 pm

CJJ

BOS

34h 15m

3 stops

$2,051Multiple Airlines

Tue, Jul 14 - Mon, Jul 20

1:15 pm - 9:55 pm

BOS

CJJ

19h 40m

1 stop

9:30 am - 9:27 pm

CJJ

BOS

24h 57m

2 stops

$2,214Multiple Airlines

Tue, Jul 14 - Mon, Jul 20

5:45 am - 9:55 pm

BOS

CJJ

27h 10m

3 stops

9:30 am - 10:38 pm

CJJ

BOS

26h 08m

2 stops

$2,286Multiple Airlines

Wed, Jul 29 - Wed, Aug 5

5:45 am - 9:55 pm

BOS

CJJ

27h 10m

3 stops

9:30 am - 10:38 pm

CJJ

BOS

26h 08m

3 stops

$2,392Multiple Airlines

Wed, Jul 29 - Wed, Aug 5

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonCheongju

BOS - CJJ

BOSCJJ

Boston Logan Intl

Tue 9/1

5:45 am-9:55 pm

3 stops27h 10m

Cheongju

Wed 9/30

9:30 am-5:40 pm

3 stops45h 10m

$1,534

BostonCheongju

BOS - CJJ

BOSCJJ

Boston Logan Intl

Tue 7/14

1:15 pm-9:55 pm

1 stop19h 40m

Cheongju

Mon 7/20

11:40 pm-8:55 pm

3 stops34h 15m

$1,737

BostonCheongju

BOS - CJJ

BOSCJJ

Boston Logan Intl

Thu 7/2

6:00 am-8:45 pm

2 stops25h 45m

Cheongju

Sun 7/5

10:55 am-9:50 am

3 stops35h 55m

$1,745

BostonCheongju

BOS - CJJ

BOSCJJ

Boston Logan Intl

Thu 7/2

6:00 am-8:45 pm

2 stops25h 45m

Cheongju

Sun 7/5

10:55 am-8:52 am

2 stops34h 57m

$1,757

BostonCheongju

BOS - CJJ

BOSCJJ

Boston Logan Intl

Tue 7/14

6:00 am-9:55 pm

3 stops26h 55m

Cheongju

Mon 7/20

11:40 pm-8:55 pm

3 stops34h 15m

$1,780

BostonCheongju

BOS - CJJ

BOSCJJ

Boston Logan Intl

Thu 7/2

5:45 am-9:55 pm

3 stops27h 10m

Cheongju

Sun 7/5

9:30 am-9:05 am

3 stops36h 35m

$1,875

BostonCheongju

BOS - CJJ

BOSCJJ

Boston Logan Intl

Tue 7/14

6:00 am-9:55 pm

2 stops26h 55m

Cheongju

Mon 7/20

11:40 pm-8:55 pm

3 stops34h 15m

$2,051

Quickest round-trip

BostonCheongju

BOS - CJJ

BOSCJJ

Boston Logan Intl

Tue 7/14

1:15 pm-9:55 pm

1 stop19h 40m

Cheongju

Mon 7/20

9:30 am-9:27 pm

2 stops24h 57m

$2,214

BostonCheongju

BOS - CJJ

BOSCJJ

Boston Logan Intl

Wed 7/29

5:45 am-9:55 pm

3 stops27h 10m

Cheongju

Wed 8/5

9:30 am-10:38 pm

2 stops26h 08m

$2,286

BostonCheongju

BOS - CJJ

BOSCJJ

Boston Logan Intl

Wed 7/29

5:45 am-9:55 pm

3 stops27h 10m

Cheongju

Wed 8/5

9:30 am-10:38 pm

3 stops26h 08m

$2,392

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Boston to Cheongju

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 airlines fly to Cheongju?

Korean Air, Air Canada and Delta are the top three most popular airlines that fly to Cheongju from Boston according to our data. Korean Air is the first choice among our users, with 28% of people opting to fly with this airline when traveling to Cheongju. Keep in mind that there are 8 different airlines that fly to Cheongju on a routine basis, so you have a few additional options to choose from.

When to book flights from Boston to Cheongju

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Cheongju according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boston to Cheongju (BOS to CJJ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Cheongju

Fastest flight time	25h 45m
Direct flights	None

The fastest flight from Boston to Cheongju takes 25h 45m

There are no direct flights from Boston to Cheongju. There are no popular flight routes from Boston to Cheongju.

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Frequently asked questions about flying from Boston to Cheongju

How far is Boston Logan Intl to Cheongju by plane?
Cheongju is 6849.9 mi away from Boston Logan Intl. Flights usually cover this in 25h 45m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Boston Logan Intl Airport to Cheongju Airport?
Prices for flights from Boston Logan Intl Airport to Cheongju Airport refresh daily.
How old do you have to be to fly from Boston Logan Intl Airport to Cheongju Airport?
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 Cheongju Airport.
What documentation or ID do you need to fly to Cheongju Airport?
The necessary travel and health documents for your Cheongju 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.

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Cheongju?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to Cheongju. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boston to Cheongju with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boston to Cheongju flights to just show those with flexible booking policies.

How can momondo help me find flights from Boston to Cheongju?

Once all potential Boston to Cheongju 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 Boston to Cheongju right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Cheongju, momondo offers a useful price alert feature which will track prices for flights to Cheongju from Boston and alert you when they change.