Seoul

$484+ Cheap flights from Boston (BOS) to Seoul (SEL)

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SEL
May 23 — May 301
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Find cheap flights from Boston to Seoul with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Boston Logan Intl to Seoul are usually found in February or November, booked 77 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Boston to Seoul

Cheapest flights from Boston to Seoul
Explore the most affordable flight options available from Boston to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.

This SmartFares deal was found by Cheapflights users on 4/20. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:40 pm
BOS
-
GMP
2 stops36h 30m
Multiple Airlines
Sat 10/243:00 pm
GMP
-
BOS
1 stop39h 20m
Multiple Airlines
Deal found 4/20$952
This SmartFares deal was found by Cheapflights users on 4/20. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:40 pm
BOS
-
ICN
2 stops30h 00m
Multiple Airlines
Sat 10/242:40 pm
ICN
-
BOS
1 stop39h 40m
Multiple Airlines
Deal found 4/20$952
This Ovago deal was found by Cheapflights users on 4/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:40 pm
BOS
-
GMP
2 stops30h 30m
Multiple Airlines
Fri 10/308:35 am
GMP
-
BOS
1 stop21h 45m
Multiple Airlines
Deal found 4/22$963
This Ovago deal was found by Cheapflights users on 4/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:40 pm
BOS
-
ICN
2 stops33h 55m
Multiple Airlines
Sat 11/213:00 pm
ICN
-
BOS
1 stop39h 20m
Multiple Airlines
Deal found 4/20$963
This Ovago deal was found by Cheapflights users on 4/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:40 pm
BOS
-
ICN
2 stops30h 00m
Multiple Airlines
Tue 11/33:00 pm
ICN
-
BOS
1 stop39h 20m
Multiple Airlines
Deal found 4/22$964
This BusinessClass deal was found by Cheapflights users on 4/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:40 pm
BOS
-
GMP
2 stops36h 30m
Multiple Airlines
Wed 11/48:35 am
GMP
-
BOS
1 stop21h 45m
Multiple Airlines
Deal found 4/22$965
This FlightHub deal was found by Cheapflights users on 4/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:00 pm
BOS
-
ICN
1 stop23h 05m
Turkish Airlines
Wed 11/2512:10 am
ICN
-
BOS
1 stop31h 55m
Turkish Airlines
Deal found 4/20$1,066
This oojo deal was found by Cheapflights users on 4/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:00 pm
BOS
-
ICN
1 stop23h 05m
Turkish Airlines
Wed 11/1812:10 am
ICN
-
BOS
1 stop31h 55m
Turkish Airlines
Deal found 4/21$1,069
This Trip.com deal was found by Cheapflights users on 4/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:30 pm
BOS
-
ICN
2 stops38h 05m
Multiple Airlines
Thu 10/88:40 pm
ICN
-
BOS
2 stops34h 00m
Multiple Airlines
Deal found 4/18$1,099
This oojo deal was found by Cheapflights users on 4/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:00 pm
BOS
-
ICN
1 stop32h 20m
Turkish Airlines
Fri 11/2010:45 am
ICN
-
BOS
1 stop45h 20m
Turkish Airlines
Deal found 4/19$1,107
This FlightHub deal was found by Cheapflights users on 4/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:00 pm
BOS
-
ICN
1 stop32h 20m
Turkish Airlines
Fri 12/1110:45 am
ICN
-
BOS
1 stop45h 20m
Turkish Airlines
Deal found 4/21$1,111
This oojo deal was found by Cheapflights users on 4/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:00 pm
BOS
-
ICN
1 stop23h 05m
Turkish Airlines
Mon 11/2312:10 am
ICN
-
BOS
1 stop31h 55m
Turkish Airlines
Deal found 4/21$1,113

Find flight deals from Boston to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Seoul (SEL). 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 April 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$952
(SmartFares)

One-way from

$484
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$1,714

Good round-trip deal

$1,180 or less

Good one-way deal

$578 or less
Provider with most accurate pricing for Boston Logan Intl-Seoul (SEL) flight deals.
Provider most trusted by Cheapflights users for Boston Logan Intl-Seoul (SEL) flights.
From Boston Logan Intl to Seoul (SEL)
One-way flight from Boston Logan Intl to Seoul (SEL)
Highest demand for flights based on searches. 10% potential increase in price ($166 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from Boston Logan Intl to Seoul (SEL).
Price to beat on a one-way flight from Boston Logan Intl to Seoul (SEL).

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Seoul 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 April 23, 2026.
Use the filters below to find and compare flights from Boston to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Fri 5/1

3:17 pm-5:55 pm

2 stops37h 38m

Seoul Gimpo Intl

Wed 5/13

8:00 am-6:48 pm

2 stops23h 48m

$1,438

BostonIncheon

BOS - ICN

BOSICN

Boston Logan Intl

Mon 8/17

7:44 pm-11:00 am

2 stops26h 16m

Incheon Intl

Thu 12/24

7:45 pm-8:02 am

2 stops26h 17m

$1,485

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Fri 5/1

7:20 am-9:15 pm

2 stops24h 55m

Seoul Gimpo Intl

Sun 5/10

8:00 am-6:15 pm

1 stop23h 15m

$1,548

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Thu 5/7

6:00 am-5:55 pm

2 stops22h 55m

Seoul Gimpo Intl

Fri 5/22

8:00 am-6:48 pm

2 stops23h 48m

$1,583

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Wed 5/13

6:00 am-9:15 pm

2 stops26h 15m

Seoul Gimpo Intl

Wed 6/10

12:05 pm-11:01 pm

2 stops23h 56m

$1,833

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Thu 4/30

10:32 am-9:15 pm

2 stops21h 43m

Seoul Gimpo Intl

Sun 5/10

8:00 am-4:45 pm

2 stops21h 45m

$1,875

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Tue 5/19

6:00 am-5:55 pm

2 stops22h 55m

Seoul Gimpo Intl

Thu 6/4

12:05 pm-11:01 pm

2 stops23h 56m

$1,911

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Thu 4/30

10:32 am-9:15 pm

2 stops21h 43m

Seoul Gimpo Intl

Tue 5/12

8:00 am-4:45 pm

2 stops21h 45m

$1,963

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Sat 5/23

6:30 am-5:55 pm

2 stops22h 25m

Seoul Gimpo Intl

Sat 6/6

7:15 pm-6:15 pm

1 stop36h 00m

$1,987

BostonSeoul

BOS - GMP

BOSGMP

Boston Logan Intl

Fri 5/22

6:30 am-9:15 pm

2 stops25h 45m

Seoul Gimpo Intl

Thu 6/4

12:05 pm-11:01 pm

2 stops23h 56m

$2,026

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 40 resultsSorted by cheapest first
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Compare providers for flights from Boston to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Seoul in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Boston 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.

Cheapflights Insights

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

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

To ensure you get the cheapest price possible for a flight from Boston to Seoul, you should look to book at least 11 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boston to Seoul?

Currently, September is the cheapest month in which you can book a flight from Boston to Seoul (average of $258). Flying from Boston to Seoul in February is currently the most expensive (average of $872). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to SEL?

Find hourly flight availability from Boston to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 23, 2026.

When flying from Boston to Seoul, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Boston to Seoul

Explore weekly flight availability from Boston to Seoul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 23, 2026.

The most flights from BOS to SEL are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from Boston to Seoul?

What’s the top layover airport for flights from Boston to Seoul?

Share of 1-stop round-trip flights from Boston to Seoul chosen by Cheapflights users in the past 12 months, using the same layover each way.

Hong Kong (HKG) – chosen by Cheapflights users on 82% of 1-stop itineraries from Boston to Seoul on Cheapflights.

What’s the cheapest layover airport for flights from Boston to Seoul?

Average round-trip fare for 1-stop flights from Boston to Seoul, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Hong Kong (HKG) is the most affordable 1-stop option, with an average round-trip price of $772.

What’s the fastest layover option from Boston to Seoul?

Shortest average travel time for 1-stop one-way flights from Boston to Seoul, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via San Francisco (SFO) have the shortest average one-way travel time for 1-stop routes: 21h 50m.

Which airport typically offers the quickest layover for flights from Boston to Seoul?

Average layover duration for 1-stop one-way flights from Boston to Seoul, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via San Francisco (SFO) offer the fastest connection on this route, with an average layover time of 1h 43m.

The best insider tips for Boston to Seoul flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Seoul trip
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Paul Rubio

Paul Rubio

Expert on BOS

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated April 23, 2026.
Read through reviews of airlines operating flights from Boston to Seoul, such as Korean Air,Delta, andCathay Pacific. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Boston to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Boston to Seoul?

    Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to Seoul. You should not have trouble finding flights to Seoul from Logan Intl; the airport handles an average of 2 outbound flights to Seoul per day. You should also have plenty of airline options to choose from since 7 airlines have flights from the Boston airport to Seoul. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.

  • How long is the flight from Boston to Seoul?

    Cathay Pacific, WestJet, and Japan Airlines can get you from Boston to Seoul in just under 22h 20m. Your travel time can differ by up to 15h 18m. The distance from Boston to Seoul is about 6809 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Boston to Seoul round-trip?

    Cheapflights users have booked flights from Boston to Seoul round-trip from $357. Other airlines that can offer you cheap pricing are Cathay Pacific, from $767, and Air Canada, from $806. These flights start at 75% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Boston to Seoul one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $468. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Boston to Seoul for a low price.

  • What are the cheapest flights from Boston to Seoul?

    Looking at all options, your cheapest flight can be booked for $442. While the most popular route (Boston Logan Intl - Incheon Intl) can be booked for $952 on average, our data indicates $2,805 when flying from Boston to Seoul.

  • Can I find deals for flights from Boston to Seoul that include hotel bookings?

    Yes. In addition to deals on Boston to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Seoul.

  • Can I find deals for business class flights from Boston to Seoul?

    Yes. Cheapflights offers flight deals from Boston to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Seoul?

    Currently, September is the cheapest month in which you can book a flight from Boston to Seoul (average of $258). Flying from Boston to Seoul in February is currently the most expensive (average of $872). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boston to Seoul

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Boston to Seoul

Discover the top 7 airlines that operate flights from Boston to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$357Average$2,023FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$767Average$1,053FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$806Average$1,130FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$843Average$999FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$872Average$1,430FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$872Average$1,159FlexibilityNo cancel feeOn-time71%
Korean AirCheapest$1,515Average$1,931FlexibilityNo cancel feeOn-time81%

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