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Washington, D.C.

$383+ Cheap flights from Incheon Intl (ICN) to Washington, D.C. (WAS)

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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — WAS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Incheon Intl to Washington, D.C. are usually found in October or December, booked 24 days in advance, depart on a Sunday or Saturday and return on a Tuesday

Cheap flight deals from Incheon Intl to Washington, D.C.

Cheapest flights from Incheon Intl to Washington, D.C.
Explore the most affordable flight options available from Incheon Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This American Airlines deal was found by Cheapflights users on 12/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:15 pmICN - BWI
1 stop17h 43mAmerican Airlines
Mon 2/236:00 amBWI - ICN
1 stop20h 45mAmerican Airlines
Deal found 12/18$479
This American Airlines deal was found by Cheapflights users on 12/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:15 pmICN - BWI
2 stops31h 52mAmerican Airlines
Mon 2/167:52 pmBWI - ICN
2 stops30h 53mAmerican Airlines
Deal found 12/18$483
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:15 pmICN - DCA
2 stops27h 30mAmerican Airlines
Mon 2/166:35 pmDCA - ICN
1 stop32h 10mAmerican Airlines
Deal found 12/17$490
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:15 pmICN - IAD
1 stop35h 01mAmerican Airlines
Mon 2/165:46 pmIAD - ICN
1 stop32h 59mAmerican Airlines
Deal found 12/17$492
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/2412:45 pmICN - IAD
1 stop30h 37mUnited Airlines
Sat 1/310:10 pmIAD - ICN
2 stops28h 05mUnited Airlines
Deal found 12/17$512
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/2512:45 pmICN - BWI
2 stops20h 45mUnited Airlines
Sat 1/36:30 amBWI - ICN
1 stop33h 10mUnited Airlines
Deal found 12/16$513
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/256:00 pmICN - IAD
1 stop26h 47mUnited Airlines
Sat 1/310:05 pmIAD - ICN
1 stop28h 10mUnited Airlines
Deal found 12/16$513
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/2412:45 pmICN - IAD
1 stop22h 10mUnited Airlines
Mon 2/2310:10 pmIAD - ICN
1 stop28h 05mUnited Airlines
Deal found 12/16$520
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/246:00 pmICN - BWI
1 stop25h 14mUnited Airlines
Mon 2/236:25 pmBWI - ICN
1 stop21h 15mUnited Airlines
Deal found 12/17$522
This United Airlines deal was found by Cheapflights users on 12/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:45 pmICN - BWI
3 stops41h 33mUnited Airlines
Mon 2/1612:37 pmBWI - ICN
2 stops51h 03mUnited Airlines
Deal found 12/18$531
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/2412:45 pmICN - DCA
1 stop22h 58mUnited Airlines
Mon 2/235:50 pmDCA - ICN
1 stop32h 25mUnited Airlines
Deal found 12/17$538
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:30 pmICN - BWI
1 stop32h 21mDelta
Mon 2/237:05 amBWI - ICN
1 stop19h 15mDelta
Deal found 12/16$634

Find flight deals from Incheon Intl to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to Washington, D.C. (WAS). 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$469
(American Airlines)

One-way from

$383
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$729

Good round-trip deal

$1,327 or less

Good one-way deal

$1,055 or less
Provider with most accurate pricing for Incheon Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Incheon Intl-Washington, D.C. (WAS) flights.
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From Incheon Intl to Washington, D.C. (WAS)
Search Deals
One-way flight from Incheon Intl to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($247 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Incheon Intl to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from Incheon Intl to Washington, D.C. (WAS).
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Incheon Intl to Washington, D.C. 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 December 18, 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Washington, D.C. that are best for you.

Fly from

Incheon Intl

Fly to

Washington, D.C.

Route

Depart

Return

Price

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 2/6

7:15 pm-10:50 am

2 stops29h 35m

Washington, D.C. Reagan-National

Sun 2/8

6:30 am-4:45 pm

1 stop20h 15m

$469

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Wed 2/18

12:45 pm-9:17 pm

2 stops22h 32m

Baltimore/Washington

Mon 3/23

6:05 am-4:40 am

2 stops33h 35m

$605

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Tue 3/3

6:00 pm-5:20 pm

1 stop37h 20m

Baltimore/Washington

Mon 4/6

6:15 am-3:00 pm

1 stop19h 45m

$605

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Mon 3/2

6:00 pm-2:01 pm

3 stops34h 01m

Baltimore/Washington

Wed 4/8

6:31 pm-4:20 am

1 stop20h 49m

$605

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Mon 3/30

11:30 am-5:52 am

1 stop31h 22m

Baltimore/Washington

Mon 5/4

4:10 pm-4:20 am

2 stops23h 10m

$605

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Wed 2/11

12:45 pm-5:26 pm

1 stop18h 41m

Baltimore/Washington

Mon 3/9

6:31 pm-4:40 am

1 stop21h 09m

$605

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 2/11

12:45 pm-4:52 pm

1 stop18h 07m

Washington, D.C. Reagan-National

Mon 3/9

5:55 pm-4:40 am

1 stop21h 45m

$605

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Tue 3/3

6:00 pm-11:30 am

2 stops31h 30m

Baltimore/Washington

Sun 4/5

6:31 pm-3:00 pm

1 stop31h 29m

$606

IncheonBaltimore

ICN - BWI

ICNBWI

Incheon Intl

Mon 3/2

6:00 pm-7:27 am

1 stop27h 27m

Baltimore/Washington

Wed 3/4

8:42 am-5:40 am

1 stop30h 58m

$606

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 2/11

12:45 pm-8:54 pm

1 stop22h 09m

Washington, D.C. Dulles Intl

Mon 3/9

2:36 pm-4:40 am

1 stop25h 04m

$606

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 47 results
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Compare providers for flights from Incheon Intl to Washington, D.C.

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 Incheon Intl to Washington, D.C. in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*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 Incheon Intl Airport-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Incheon Intl Airport-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Incheon Intl Airport-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams 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 Incheon Intl Airport-Washington, D.C. 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 Incheon Intl to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Incheon Intl 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 Incheon Intl Airport to Washington, D.C.

What is the cheapest month to book a flight from Incheon Intl Airport to Washington, D.C.?

Currently, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. (average of $389). Flying from Incheon Intl Airport to Washington, D.C. in July is currently the most expensive (average of $954). 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 ICN to WAS?

Find hourly flight availability from Incheon Intl to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Incheon Intl Airport to Washington, D.C. as you normally would.

Weekly flight availability from Incheon Intl Airport to Washington, D.C.

Explore weekly flight availability from Incheon Intl to Washington, D.C.. 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 December 18, 2025.

The most flights from ICN to WAS 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 often are flights from Incheon to Washington, D.C. delayed?

About 19% of weekly flights between Incheon and Washington, D.C. have experienced delays in the past year, with the average delay time being 131 minutes.

What is the most punctual flight time for Incheon to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Incheon to Washington, D.C. flights?

Over the last year, Korean Air have had the lowest number of delays on this route, with just 19% of flights being delayed.

The best insider tips for Incheon Intl Airport to Washington, D.C. 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 Incheon Intl Airport to Washington, D.C. trip
Airports
ICN

Plan for extra time at security; lines can take up to 20 minutes, especially without fast track options.

Read more about ICNBy Gabriel Leigh
IAD

Use the Silver Line Metro for a cheap, 40-minute ride to D.C. from IAD, just 5 minutes from the terminal.

Read more about IADBy Ramsey Qubein
Our travel experts
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
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated December 18, 2025.
Read through reviews of airlines operating flights from Incheon Intl Airport to Washington, D.C., such as Korean Air, Asiana Airlines, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,186 reviews

Overall

8.4

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,186 reviews
Korean Air
8.4
Very good
1,186 reviews

Overall

8.4

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.2
Very good
493 reviews
Korean Air
8.4
Very good
1,186 reviews

Overall

8.4

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Delta
7.9
Good
8,005 reviews
Korean Air
8.4
Very good
1,186 reviews

Overall

8.4

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
United Airlines
7.4
Good
9,092 reviews
Korean Air
8.4
Very good
1,186 reviews

Overall

8.4

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air Canada
7.1
Good
10,534 reviews
Korean Air
8.4
Very good
1,186 reviews

Overall

8.4

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Incheon Intl to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Incheon Intl Airport to Washington, D.C.?

    For as low as $605, American Airlines can have you in Washington, D.C. from Incheon Intl Airport in 22h 32m. The distance between Incheon Intl Airport and Washington, D.C. is about 6938 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Incheon Intl Airport to Washington, D.C. round-trip?

    According to our current data, American Airlines ($501), United Airlines ($512), and Air Canada ($688) offers the cheapest pricing from Incheon Intl Airport to Washington, D.C.. American Airlines is priced at 53% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Incheon Intl Airport to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $440. United Airlines flights start at $443 while deals on Korean Air start at $776 one-way.

  • What are the most popular routes from Incheon Intl Airport to Washington, D.C.?

    The most popular flight routes from Incheon Intl Airport to Washington, D.C. are Incheon Intl - Washington, D.C. Dulles Intl, Incheon Intl - Baltimore/Washington and Incheon Intl - Washington, D.C. Reagan-National.

  • What are the cheapest flights from Incheon Intl Airport to Washington, D.C.?

    While on average a flight from Incheon Intl Airport to Washington, D.C. is generally $1,285, our data shows the cheapest flight currently is $1,052. When looking at the most popular route, (Incheon Intl - Washington, D.C. Dulles Intl), you can expect to pay $512 for that flight.

  • Can I find deals for flights from Incheon Intl to Washington, D.C. that include hotel bookings?

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

  • How can I find direct flights from Incheon Intl to Washington, D.C.?

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

  • Can I find deals for business class flights from Incheon Intl to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Incheon Intl to Washington, D.C. 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 Incheon Intl Airport to Washington, D.C.?

    Currently, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Washington, D.C. (average of $389). Flying from Incheon Intl Airport to Washington, D.C. in July is currently the most expensive (average of $954). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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Alternative routes for Incheon Intl to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Dulles Intl flights
Incheon Intl to Reagan-National flights

Top 5 airlines flying from Incheon Intl to Washington, D.C.

Discover the top 5 airlines that operate flights from Incheon Intl to Washington, D.C.. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$501Average$723FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$512Average$731FlexibilityNo cancel feeOn-time69%
DeltaCheapest$649Average$1,520FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$688Average$980FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$1,195Average$1,408FlexibilityNo cancel feeOn-time81%

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