BOS - SEL

$342 Find Cheap Flights from Boston to Seoul

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Seoul departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seoul

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Seoul.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Seoul.
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$1,077
Typical prices: $1,538-$1,046
Multiple Airlines
Wed 8/26Fri 9/11
BOS - ICN • 2 stops
Cheapest non-stop
$1,897
Typical prices: $1,833-$1,715
Korean Air
Tue 4/21Tue 4/28
BOS - ICN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Download the FlyLogan app for gate info at BOS.
Use the AREX Express train for a quick ride to Seoul.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $1,164 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boston and Seoul. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $977 (round-trip)
Shortest trip • 16h 49m (one-way)
Insights
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Insights
Top routes
Cheapest
Most popular
Insights
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When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 16% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
Good to know
+1
+1
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seoul!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Boston to Seoul (BOS-SEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Seoul that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Seoul

Wed, Aug 26 - Fri, Sep 11
Multiple Airlines Logo
6:40 pm - 8:05 pm
BOS
-
ICN
36h 25m
2 stops
Multiple Airlines Logo
8:20 am - 4:40 pm
ICN
-
BOS
21h 20m
1 stop
$1,077Multiple Airlines
Tue, Sep 1 - Sun, Sep 20
Multiple Airlines Logo
8:30 pm - 11:30 am
BOS
-
ICN
26h 00m
2 stops
Multiple Airlines Logo
12:35 pm - 7:57 am
ICN
-
BOS
32h 22m
2 stops
$1,126Multiple Airlines
Tue, Sep 15 - Tue, Sep 22
Air Canada Logo
5:50 am - 4:15 pm
BOS
-
ICN
21h 25m
1 stop
Air Canada Logo
7:05 pm - 10:40 pm
ICN
-
BOS
16h 35m
1 stop
$1,152Air Canada
Tue, Sep 15 - Tue, Sep 22
Air Canada Logo
5:50 am - 4:15 pm
BOS
-
ICN
21h 25m
1 stop
Air Canada Logo
7:05 pm - 10:40 pm
ICN
-
BOS
16h 35m
1 stop
$1,154Air Canada
Wed, Sep 9 - Tue, Oct 6
Multiple Airlines Logo
7:59 pm - 11:00 am
BOS
-
ICN
26h 01m
2 stops
Multiple Airlines Logo
7:45 pm - 8:02 am
ICN
-
BOS
25h 17m
2 stops
$1,156Multiple Airlines
Tue, Sep 8 - Tue, Oct 6
Cathay Pacific Logo
1:45 am - 12:40 pm
BOS
-
ICN
21h 55m
1 stop
Cathay Pacific Logo
1:40 pm - 11:05 pm
ICN
-
BOS
22h 25m
1 stop
$1,163Cathay Pacific
Sun, May 10 - Sun, Jun 7
China Eastern Logo
6:15 am - 11:00 am
BOS
-
GMP
39h 45m
2 stops
China Eastern Logo
8:50 pm - 9:02 pm
GMP
-
BOS
37h 12m
2 stops
$1,164China Eastern
Tue, Sep 1 - Sun, Sep 20
China Eastern Logo
6:30 am - 11:55 am
BOS
-
ICN
40h 25m
2 stops
China Eastern Logo
6:25 pm - 9:11 pm
ICN
-
BOS
39h 46m
2 stops
$1,164China Eastern
Tue, Sep 8 - Mon, Oct 5
Cathay Pacific Logo
1:45 am - 12:40 pm
BOS
-
ICN
21h 55m
1 stop
Cathay Pacific Logo
1:55 am - 11:05 pm
ICN
-
BOS
34h 10m
1 stop
$1,167Cathay Pacific
Sat, Sep 5 - Tue, Sep 15
China Airlines Logo
7:05 pm - 7:05 pm
BOS
-
ICN
35h 00m
2 stops
China Airlines Logo
12:35 pm - 4:49 pm
ICN
-
BOS
41h 14m
2 stops
$1,178China Airlines
Booking Insights

KAYAK's insights & trends for Boston to Seoul flights

Get data-powered insights and trends into flights from Boston to Seoul to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boston to Seoul?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Seoul departing in August.

What is the cheapest Boston to Seoul flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Boston to Seoul costs $732 on the route between Boston (BOS) and Incheon Intl Airport (ICN). It is also the most popular route.

What’s the cheapest day of the week to fly from Boston to Seoul?

The average price of all round-trip flights from Boston to Seoul clicked on KAYAK for each day over the last 12 months.

When flying from Boston to Seoul, you should consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Tuesdays and the most expensive ones on Wednesdays.

What is the cheapest month to fly from Boston to Seoul?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Seoul, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Seoul is February, where tickets cost $1,003 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,883 and $1,862 respectively.

How far in advance should I book a flight from Boston to Seoul?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Seoul, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Seoul, you should book around 2 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Expert advice

Expert advice for your flight from Boston to Seoul

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Robert Schrader

Robert Schrader

Expert on ICN

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Blane Bachelor

Blane Bachelor

Expert on BOS

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low seasonJanuary
Cheapest flight$342
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Boston to Seoul Incheon Airport

When to book flights from Boston to Seoul

Are your dates flexible? Find out the best times to travel from Boston to Seoul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Seoul

  • What is the cheapest flight from Boston to Seoul?

    In the last 3 days, the lowest price for a flight from Boston to Seoul was $342 for a one-way ticket and $1,164 for a round-trip.

  • Do I need a passport to fly between Boston and Seoul?

    Yes

  • Which airports will I be using when flying from Boston to Seoul?

    Boston is served by only 1 airport and there are 2 airports in Seoul. You will leave Boston from Boston Logan Intl and you will be arriving in Seoul at one of these airports: Seoul Gimpo Intl or Incheon Intl.

  • Which aircraft models fly most regularly from Boston to Seoul?

    The Boeing 777-300ER is the aircraft model that flies most regularly on the Boston to Seoul flight route.

  • Which airline alliances offer flights from Boston to Seoul?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Boston and Seoul, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Boston to Seoul?

    There are nonstop flights from Boston to Seoul on a daily basis.

  • Which is the best airline for flights from Boston to Seoul, Korean Air or Japan Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Seoul are Korean Air and Japan Airlines. With an average price for the route of $1,884 and an overall rating of 8.4, Korean Air is the most popular choice. Japan Airlines is also a great choice for the route, with an average price of $1,179 and an overall rating of 8.3.

  • How does KAYAK find such low prices on flights from Boston to Seoul?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Seoul.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Seoul?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Seoul?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seoul with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Seoul?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seoul from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Seoul

  • Looking for a cheap flight? 25% of our users found flights on this route for $511 or less one-way and $1,024 or less round-trip.

Reviews of the top 5 airlines serving from Boston to Seoul

 
See real verified KAYAK customer reviews for airlines flying from Boston to Seoul. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Seoul? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1205 reviews
8.2Entertainment
8.1Food
8.5Boarding
8.7Crew
8.3Comfort
Airline reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

10.0 ExcellentOmer, Mar 2026
MNL - ICN
Read more Korean Air reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Okay considering we had weather delays which the Pilot notified us of immediately!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

Flight from Fort Wayne to Atlanta was the smallest in terms of cabin space that I've ever seen. A carry on I've used for 20 years BARELY fit in overhead compartment. I'm 5'10" and felt very cramped. Not the best experience.

I am writing to express my dissatisfaction with the poor service and unprofessional staff we encountered when traveling with an infant. Our flight was delayed, and the gate staff failed to manage the boarding process appropriately. Due to incorrect, unavailable, or missing 'pink tag' stroller and car seat check-in procedures at the gate, we were forced to board last. Furthermore, the gate staff was rude and dismissive, causing significant distress to our infant. To make matters worse, one of our checked items—an infant sleeper/lounger—was returned to us broken. Given the unsafe handling of essential equipment and unprofessional treatment, I expect a prompt resolution regarding compensation for the damaged items.

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Multiple late or canceled flights. Lounge was 100 degrees. Food was terrible. The plane was incredibly old, and best of all, a screaming child for 3 hours. All for the low low price of $2,600 one way Hanoi to Shanghai. No idea how Cathay is ranked so high. Cathay is not much better than American Airlines or Spirit. In the future I will go out of my way to not fly Cathay.

when i ask for help all the crew members had a look like why are you calling me? very terse and rude.

Good service and food. However, we paid over $400 for aisle seats for my disabled husband and me, and we were given window and middle seats. This was dangerous for our health condition on such a long flight. We needed to stand up and walk around frequently, but we were stuck in our seats. Please give us a refund of our seat payment since you chose not to honor our request.

Very bad Instead 22 hour it take me more that 35 hour to arrive from Los Angeles to Phuket and they changed my flight in Hong Kong to Shanghai china and in order to get my bag I was forced to vet china visa entrry

There could have been more options on the entertainment section Nothing was available for non English speaking passengers

I was mid plane and they were already out of the main beef entree....ugh!

I didn't have much experience with Cathay Pacific airlines because of delay and missed connections, the bulk of the trip was on Japan Airlines.

Flight delayed first from bad weather, then after boarding there was a problem with the plane. We had to get off and onto another plane...connections were missed and the trip took an additional 10 hours!! Pre-paid seatting was not honored due ro last minute carrier changes. Most of the trip was on Japan Airline.

Flight from Hong Kong to LAX was late, the plane was grubby, overcrowded and hot. I recently flew Starlux and that was a MUCH better experience.

Crew and food were great in-flight. We had a 2 hour delay, no communication, and just got left in a limbo. The crew arrived late and they were running checkouts on the plane (which is important, but why not doing it earlier?) Cathay did nothing to about the delay, and a lot of people missed their connection flights. I had to run and got stuck at checkpoint, which made my entire trip very unpleasant. Got to my gate 5 mins prior to them closing it.

The seats seems abit small and the reclining is too much, the seat in front of me came back too much and made it uncomfortable for me.

As a first time flyer with Turkish Airlines. My experience was very good due to the factor that there were to many passengers on the my first flight compared to my connecting flight. However, I know that nothing is perfect and all companies are trying to accommodate their passengers to the best way possible. I will always say, a FEW INCHES will go LONG WAY. That's something all airliners should consider, and not only the money aspect!!! A long time commitment is better than one time service! Thank you

Flight was delayed. While standing at the gate, a note appeared on the sign saying the gate had changed to a gate far away. No member of the Turkish airlines team got on the microphone to instruct passengers to go to the other gate, to ignore the chiron, etc. Finally, the message disappeared. Eventually, the flight began to board. Very slowly. More slowly than I experience with other airlines. Though Istanbul may just be slow . . . In all other ways, great flight, great entertainment (top notch movies), great service, excellent food, comfortable lie-flat seat, dimmed lights, etc.

Staff at the airport wasn't helpful or friendly. Probably the worst airport experience I have ever had, going and coming. The staff on the plane was better. Still not super friendly or personable. However, they were not rude like airport staff. They ran out of certain menu items. Maybe could have been prepared better? Overall just ok.

It was a pleasant experience. In flight entertainment could have been better

The desk crew at the LAX crew could do better. A girl named Mahesi was very abrasive and unfriendly. She needs a better customer service uproar.

It was peaceful excited We enjoyed it always Turkish peaceful excited

Istanbul to Lahore flight was less than standard for international business class cabins. Seat did not were not flat and it did not operate easily. I had to push buttons hard repeatedly to operate the seat. I was in 5A seat

IAH to Istanbul was outstanding across the board. The flight from Istanbul to Male was good, not great.

the cabin was kept too hot. couldn't sleep as a result

Flight home was delayed multiple times, did not get home until 2am

the check-in lady at ORD was extremely rude and unprofessional. very disappointed as it was supposed to be a celebration for my wife's birthday and it really put a damper on things. if i wanted to be treated like trash, i would have flown Economy! (as opposed to business class)

My original flight was cancelled and then rebooked four hours later on a recovery flight, but I was checked in as stanby and had no seats so as a family of four we were concerned about not being seated altogether. Our flight then got delayed by another 1.5 hours and when seats were assigned at the gate, three of the four of us were together and we could get my wife closer, they offered no assistance.

I bought a ticket from Kayak. When I got to the airport, the was no ticket. I had to pay 5X to get to my destination. No response received from Kayak. I will NEVER use them again.

My wallet was stolen while I was sleeping on the plane.

Good boarding but extremely cold temperature in both flights (60 F!).

The whole plane smelled and felt old. The seats were very uncomfortable. Multiple delays. Extra fees.

Very rude gate attendants in San Francisco who didn’t let me bring my little carry on (smaller than usual size) and after boarding I realized that there still were a lot of overhead compartment space (like a full section available in some spots). That made me lose 30 minutes at my destination at 1am and it could have broken something fragile that I had in it

The most uncomfortable flight I’ve ever been on. I’m only 5,4” and barely had enough room to exist, couldn’t even fully relax my shoulders. Not sure why they bother with snacks. Half a coke and a single cookie?? Wow. Purchasable food looked gross too. Remember when airlines used to treat you like a human being?

Departed Palm Springs over an hour late because there’s only one gate, and it has always delayed by the arriving and departing flight to Toronto and the arriving flight from Vancouver.

Everything you need to know for your flight from Boston to Seoul

Information on your arrival and departure airports