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Incheon Intl

$346+ Cheap flights from San Francisco (SFO) to Incheon Intl (ICN)

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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ICN
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to Incheon Intl are usually found in February or March, booked 1 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from San Francisco to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Incheon Intl (ICN). 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 August 21, 2025.

Round-trip from

$657
(Ovago)

One-way from

$346
(SmartFares)

Popular in

June

Cheapest in

February

Average price

$776

Good round-trip deal

$661 or less

Good one-way deal

$353 or less
From San Francisco to Incheon Intl
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One-way flight from San Francisco to Incheon Intl
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Highest demand for flights based on searches. 14% potential increase in price ($149 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from San Francisco to Incheon Intl.
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Price to beat on a one-way flight from San Francisco to Incheon Intl.
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Find flight deals from San Francisco to Incheon Intl

Cheapest flights from San Francisco to Incheon Intl
Explore the most affordable flight options available from San Francisco to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

This Ovago deal was found by Cheapflights users on 8/21. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/243:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Fri 10/316:55 pmICN - SFO
Nonstop10h 05mAIR PREMIA
Deal found 8/21$657
This Trip.com deal was found by Cheapflights users on 8/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:00 pmSFO - ICN
1 stop30h 55mChina Eastern
Sun 11/234:20 pmICN - SFO
1 stop33h 40mChina Eastern
Deal found 8/21$658
This United Airlines deal was found by Cheapflights users on 8/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2311:55 pmSFO - ICN
Nonstop12h 25mUnited Airlines
Fri 10/1011:30 amICN - SFO
Nonstop10h 40mUnited Airlines
Deal found 8/21$659
This United Airlines deal was found by Cheapflights users on 8/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/111:45 pmSFO - ICN
Nonstop12h 35mUnited Airlines
Tue 9/1611:30 amICN - SFO
Nonstop10h 40mUnited Airlines
Deal found 8/21$660
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3010:40 amSFO - ICN
Nonstop12h 20mUnited Airlines
Wed 9/1011:30 amICN - SFO
Nonstop10h 40mUnited Airlines
Deal found 8/20$661
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:35 amSFO - ICN
Nonstop12h 25mUnited Airlines
Mon 10/275:00 pmICN - SFO
Nonstop10h 35mUnited Airlines
Deal found 8/20$662
This United Airlines deal was found by Cheapflights users on 8/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2611:45 pmSFO - ICN
Nonstop12h 55mUnited Airlines
Tue 11/1112:45 pmICN - SFO
Nonstop10h 45mUnited Airlines
Deal found 8/21$663
This Tourvis deal was found by Cheapflights users on 8/21. 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 Tourvis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/217:00 amSFO - ICN
1 stop19h 35mHawaiian Airlines
Sun 9/288:35 pmICN - SFO
1 stop29h 57mHawaiian Airlines
Deal found 8/21$665
This FlightHub deal was found by Cheapflights users on 8/21. 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.
Fri 9/123:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Sun 9/216:20 pmICN - SFO
Nonstop10h 40mAIR PREMIA
Deal found 8/21$668
This FlightHub deal was found by Cheapflights users on 8/20. 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 11/612:00 pmSFO - ICN
2 stops31h 15mChina Eastern
Mon 11/178:55 amICN - SFO
1 stop17h 05mChina Eastern
Deal found 8/20$670
This Booking.com deal was found by Cheapflights users on 8/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/193:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Sun 10/266:55 pmICN - SFO
Nonstop10h 05mAIR PREMIA
Deal found 8/20$671

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Incheon Intl 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 August 21, 2025.
Use the filters below to find and compare flights from San Francisco to Incheon Intl Airport that are best for you.

Fly from

San Francisco

Fly to

Incheon Intl

Route

Depart

Return

Price

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 9/18

11:45 pm-4:20 am

Nonstop12h 35m

Incheon Intl

Wed 10/15

11:30 am-6:10 am

Nonstop10h 40m

$659

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 8/28

11:55 pm-4:20 am

Nonstop12h 25m

Incheon Intl

Mon 9/8

4:50 pm-11:35 am

Nonstop10h 45m

$660

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 10/26

10:30 am-3:15 pm

Nonstop12h 45m

Incheon Intl

Tue 11/11

12:45 pm-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 10/5

11:45 pm-4:20 am

Nonstop12h 35m

Incheon Intl

Tue 3/10

11:45 am-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Tue 9/23

10:35 am-3:00 pm

Nonstop12h 25m

Incheon Intl

Sun 11/9

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 11/8

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Thu 11/27

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Tue 9/23

10:35 am-3:00 pm

Nonstop12h 25m

Incheon Intl

Thu 11/13

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 9/6

11:45 pm-4:20 am

Nonstop12h 35m

Incheon Intl

Wed 9/17

11:30 am-6:10 am

Nonstop10h 40m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 9/22

11:45 pm-4:20 am

Nonstop12h 35m

Incheon Intl

Thu 11/13

6:00 pm-11:35 am

Nonstop10h 35m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 8/30

11:55 pm-4:20 am

Nonstop12h 25m

Incheon Intl

Sat 11/1

5:00 pm-11:35 am

Nonstop10h 35m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

Showing 1-10 of 23 results
1
2
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The best insider tips for San Francisco to Incheon Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Francisco to Incheon Intl Airport trip
Airlines
AIR PREMIA

Economy seats offer 35 inches of legroom, ideal for long-haul comfort without extra cost.


Premium Economy includes priority boarding and extra baggage, enhancing the travel experience.

Read more about AIR PREMIAby Esther Carlstone
Asiana Airlines

Business class offers fully flat beds and direct aisle access for ultimate comfort.


Economy Smartium seats provide 36 inches of legroom, ensuring extra comfort on long flights.

Read more about Asiana Airlinesby Marisa Garcia
Airports
SFO

Save time at SFO by using the AirTrain Red Line to quickly navigate between terminals and security checkpoints.

Read more about SFOby Harriet Baskas
ICN

Use the AREX express train for a quick 40-50 minute trip between ICN and Seoul Station.

Read more about ICNby Gabriel Leigh
Our travel experts
Esther Carlstone

Esther Carlstone

Expert on AIR PREMIA

Esther Carlstone

Esther Carlstone

Esther Carlstone is a travel and food writer based in Los Angeles. Her work has appeared in publications such as Travel + Leisure, Lonely Planet, Forbes, Tripadvisor, Insider, and more.

Read more
Marisa Garcia

Marisa Garcia

Expert on Asiana Airlines

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel Leigh

Gabriel Leigh

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.

Read more
Harriet Baskas

Harriet Baskas

Expert on SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Best time to book a flight from San Francisco to Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl from San Francisco 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 San Francisco to Incheon Intl Airport

How far ahead should I book a flight from San Francisco to Incheon Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Incheon Intl. Price data was last updated on August 8, 2025.

Booking 1 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Incheon Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Francisco to Incheon Intl Airport?

Currently, February is the cheapest month in which you can book a flight from San Francisco to Incheon Intl Airport (average of $992). Flying from San Francisco to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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 SFO to ICN?

Find hourly flight availability from San Francisco to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 14% on flights from San Francisco to Incheon Intl Airport by exploring options for tickets in the afternoon.

What is the cheapest day to fly from San Francisco to Incheon Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Incheon Intl. Price data was last updated on August 17, 2025.

Travelers seeking maximum savings on their San Francisco to Incheon Intl Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated August 21, 2025.
Read reviews from past customers who have flown Korean Air, AIR PREMIA, and Asiana Airlines from San Francisco to Incheon Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,131 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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.
Korean Air
8.4
Very good
1,131 reviews
Korean Air
8.4
Very good
1,131 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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.
AIR PREMIA
8.2
Very good
60 reviews
Korean Air
8.4
Very good
1,131 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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.
Asiana Airlines
8.2
Very good
475 reviews
Korean Air
8.4
Very good
1,131 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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.
Delta
8.0
Very good
7,981 reviews
Korean Air
8.4
Very good
1,131 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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.
United Airlines
7.4
Good
8,930 reviews
Korean Air
8.4
Very good
1,131 reviews

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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 San Francisco to Incheon Intl. 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 San Francisco to Incheon Intl?

    San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly out of when you book flights from San Francisco to Incheon Intl. 13 airlines have flights from San Francisco to Incheon Intl on a regular basis. Booking flights from San Francisco to Incheon Intl should not be difficult; the airport handles an average of 10 outbound flights to Incheon Intl per day.

  • How popular is this San Francisco to Incheon Intl Airport flight route?

    Flights from San Francisco to Incheon Intl have been viewed 398 times in the past calendar month.

  • How long is the flight from San Francisco to Incheon Intl Airport?

    United Airlines can get you from San Francisco to Incheon Intl Airport in just under 12h 35m. Your travel time will be generally consistent. Airlines will cover a distance of 5642 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from San Francisco to Incheon Intl Airport round-trip?

    Flying on Hawaiian Airlines is currently your cheapest option to Incheon Intl Airport, with prices starting at $422. Additional round-trip tickets that might be worth considering are offered by AIR PREMIA and China Eastern, with the lowest prices starting at $618 and $651, respectively. Hawaiian Airlines is 51% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from San Francisco to Incheon Intl Airport?

    Before booking your flight to Incheon Intl Airport from San Francisco, check out the most reliable airlines to get you to your destination on time: Asiana Airlines (92%), United Airlines (92%), Thai Airways( 92%).

  • What are the cheapest flights from San Francisco to Incheon Intl Airport?

    On average you can expect to pay $2,292 for a flight from San Francisco to Incheon Intl Airport. The cheapest flight overall is $340 while the most popular route, (San Francisco - Incheon Intl) is currently priced at $615.

  • Can I find deals for flights from San Francisco to Incheon Intl that include hotel bookings?

    Yes. In addition to deals on San Francisco to Incheon Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Incheon Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Incheon Intl.

  • Can I find deals for business class flights from San Francisco to Incheon Intl?

    Yes. Cheapflights offers flight deals from San Francisco to Incheon Intl 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 San Francisco to Incheon Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Incheon Intl Airport (average of $992). Flying from San Francisco to Incheon Intl Airport in December is currently the most expensive (average of $1,635). 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

Traveling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon
Seongnam
Daejeon

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Alternative routes for San Francisco to Incheon Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from San Francisco to Incheon Intl

Discover the top 10 airlines that operate flights from San Francisco to Incheon Intl. 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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$422Average$671FlexibilityNo cancel feeOn-time85%
AIR PREMIACheapest$618Average$801FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$651Average$746FlexibilityNo cancel feeOn-time62%
Asiana AirlinesCheapest$651Average$794FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$651Average$848FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$660Average$808FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$675Average$1,075FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$776Average$973FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$789Average$953FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$809Average$865FlexibilityNo cancel feeOn-time72%

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