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$91+ Cheap flights from Incheon Intl (ICN) to Singapore (SIN)

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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SIN
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Incheon Intl to Singapore Changi are usually found in March or April, booked 40 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Incheon Intl to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to Singapore (SIN). 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 14, 2025.

Round-trip from

$223
(T'way Air)

One-way from

$91
(oojo)

Popular in

October

Cheapest in

March

Average price

$306

Good round-trip deal

$265 or less

Good one-way deal

$126 or less
From Incheon Intl to Singapore Changi
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One-way flight from Incheon Intl to Singapore Changi
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Highest demand for flights based on searches. 14% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 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 Incheon Intl to Singapore Changi.
Search Deals
Price to beat on a one-way flight from Incheon Intl to Singapore Changi.
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Find flight deals from Incheon Intl to Singapore

Cheapest flights from Incheon Intl to Singapore
Explore the most affordable flight options available from Incheon Intl to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This T'way Air deal was found by Cheapflights users on 8/13. 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 T'way Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/277:00 pmICN - SIN
Nonstop6h 45mT'way Air
Mon 9/111:00 pmSIN - ICN
Nonstop6h 30mT'way Air
Deal found 8/13$223
This Vietnam Airlines deal was found by Cheapflights users on 8/12. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1910:05 amICN - SIN
1 stop26h 50mVietnam Airlines
Thu 9/251:05 pmSIN - ICN
1 stop15h 45mVietnam Airlines
Deal found 8/12$224
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/304:10 pmICN - SIN
Nonstop6h 20mMultiple Airlines
Tue 9/301:05 pmSIN - ICN
1 stop15h 40mMultiple Airlines
Deal found 8/14$225
This Vietnam Airlines deal was found by Cheapflights users on 8/13. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:05 pmICN - SIN
1 stop18h 50mVietnam Airlines
Sun 10/261:25 pmSIN - ICN
1 stop26h 05mVietnam Airlines
Deal found 8/13$226
This Vietnam Airlines deal was found by Cheapflights users on 8/14. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:05 pmICN - SIN
1 stop18h 50mVietnam Airlines
Mon 9/291:05 pmSIN - ICN
1 stop15h 45mVietnam Airlines
Deal found 8/14$227
This T'way Air deal was found by Cheapflights users on 8/14. 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 T'way Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/14:10 pmICN - SIN
Nonstop6h 20mT'way Air
Wed 10/111:00 pmSIN - ICN
Nonstop6h 30mT'way Air
Deal found 8/14$228
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/304:10 pmICN - SIN
Nonstop6h 20mMultiple Airlines
Mon 9/297:30 pmSIN - ICN
1 stop13h 10mMultiple Airlines
Deal found 8/14$229
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/304:10 pmICN - SIN
Nonstop6h 20mMultiple Airlines
Thu 10/21:05 pmSIN - ICN
1 stop19h 35mMultiple Airlines
Deal found 8/14$230
This oojo deal was found by Cheapflights users on 8/13. 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.
Mon 10/2010:35 amICN - SIN
1 stop26h 35mVietnam Airlines
Thu 10/231:05 pmSIN - ICN
1 stop26h 30mVietnam Airlines
Deal found 8/13$231
This Vietnam Airlines deal was found by Cheapflights users on 8/13. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:05 pmICN - SIN
1 stop18h 50mVietnam Airlines
Thu 9/186:25 pmSIN - ICN
1 stop11h 15mVietnam Airlines
Deal found 8/13$232
This T'way Air deal was found by Cheapflights users on 8/14. 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 T'way Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/253:40 pmICN - SIN
Nonstop6h 50mT'way Air
Mon 9/2911:00 pmSIN - ICN
Nonstop6h 30mT'way Air
Deal found 8/14$233
This T'way Air deal was found by Cheapflights users on 8/14. 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 T'way Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/243:40 pmICN - SIN
Nonstop6h 50mT'way Air
Tue 9/3011:00 pmSIN - ICN
Nonstop6h 30mT'way Air
Deal found 8/14$234

Cheapflights Fare Finder

 
Customize your flight search to find flights from Incheon Intl to Singapore 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 14, 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Singapore that are best for you.

Fly from

Incheon Intl

Fly to

Singapore

Route

Depart

Return

Price

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Wed 8/27

7:00 pm-12:45 am

Nonstop6h 45m

Singapore Changi

Mon 9/1

11:00 pm-6:30 am

Nonstop6h 30m

$223

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Fri 9/19

10:05 am-11:55 am

1 stop26h 50m

Singapore Changi

Tue 9/23

1:05 pm-4:35 pm

1 stop26h 30m

$224

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Fri 9/19

10:05 am-11:55 am

1 stop26h 50m

Singapore Changi

Sat 9/27

1:05 pm-5:50 am

1 stop15h 45m

$224

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Sun 9/21

10:05 am-11:55 am

1 stop26h 50m

Singapore Changi

Tue 9/30

1:05 pm-4:35 pm

1 stop26h 30m

$224

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Sun 10/19

6:05 pm-11:55 am

1 stop18h 50m

Singapore Changi

Sun 10/26

1:25 pm-4:30 pm

1 stop26h 05m

$226

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Tue 10/21

6:05 pm-11:55 am

1 stop18h 50m

Singapore Changi

Sun 10/26

1:25 pm-4:30 pm

1 stop26h 05m

$226

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Sat 10/18

6:05 pm-11:55 am

1 stop18h 50m

Singapore Changi

Tue 10/21

1:05 pm-4:35 pm

1 stop26h 30m

$226

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Sat 10/18

6:05 pm-11:55 am

1 stop18h 50m

Singapore Changi

Mon 10/20

1:05 pm-5:50 am

1 stop15h 45m

$226

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Sun 10/19

6:05 pm-11:55 am

1 stop18h 50m

Singapore Changi

Wed 10/22

1:05 pm-5:50 am

1 stop15h 45m

$226

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Wed 10/22

6:05 pm-11:55 am

1 stop18h 50m

Singapore Changi

Sun 10/26

1:25 pm-4:30 pm

1 stop26h 05m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 20 results
1
2

The best insider tips for Incheon Intl Airport to Singapore 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 Incheon Intl Airport to Singapore trip
Airlines
Singapore Airlines

Enjoy free unlimited Wi-Fi and extensive inflight entertainment for a seamless travel experience.


Economy passengers get 25kg baggage allowance even on a 'Lite' fare.

Read more about Singapore Airlinesby Gabriel Leigh
Korean Air

Korean Air offers 33”-34” seat pitch in economy, providing more space than many competitors.


Experience traditional Korean dishes like bibimbap, a highlight of Korean Air's economy meals.

Read more about Korean Airby Yulia Denisyuk
Airports
ICN

Plan for a little extra time at security, as lines can take up to 20 minutes, especially during busy periods.

Read more about ICNby Gabriel Leigh
SIN

Use the Grab app for a quick 25-minute ride to the city, cheaper than a taxi from Terminal 4.

Read more about SINby Yulia Denisyuk
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on Singapore Airlines and 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
Yulia Denisyuk

Yulia Denisyuk

Expert on Korean Air and SIN

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more

Best time to book a flight from Incheon Intl to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore 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 Singapore

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

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

The best time to book flights from Incheon Intl Airport to Singapore is 40 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Singapore (average of $991). Flying from Incheon Intl Airport to Singapore in December is currently the most expensive (average of $1,684). 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 SIN?

Find hourly flight availability from Incheon Intl to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

One of the essential ways to save on airfare from Incheon Intl Airport to Singapore is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 27% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Incheon Intl to Singapore. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Incheon Intl Airport to Singapore flight should consider departing on Wednesday mornings 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.

Weekly flight availability from Incheon Intl Airport to Singapore

Explore weekly flight availability from Incheon Intl to Singapore. 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 August 14, 2025.

The most flights from ICN to SIN are scheduled on a Wednesday (34 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (28 on average).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. 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 Singapore. Reviews last updated August 14, 2025.
Peruse reviews from past customers who have flown with Korean Air, Asiana Airlines, and Singapore Airlines from Incheon Intl Airport to Singapore to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,131 reviews

Boarding

8.5

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Crew

8.7

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

Boarding

8.5

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Crew

8.7

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
473 reviews
Korean Air
8.4
Very good
1,131 reviews

Boarding

8.5

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Crew

8.7

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!!
Singapore Airlines
8.1
Very good
1,346 reviews
Korean Air
8.4
Very good
1,131 reviews

Boarding

8.5

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Crew

8.7

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!!
Scoot
6.7
Okay
308 reviews
Korean Air
8.4
Very good
1,131 reviews

Boarding

8.5

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Crew

8.7

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 Singapore. 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 into for flights to Singapore from Incheon Intl?

    For a flight from Incheon Intl to Singapore, you will be flying into Changi. Singapore Changi (SIN) is just 10.5 mi from the center of the city. Changi is the only Singapore airport and it handles 30 inbound flights from Incheon Intl per day. 5 airlines have flights to Singapore Changi from Incheon Intl on a regular basis.

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

    This flight path from Incheon Intl to Singapore Changi was viewed by 58 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Our cheapest airline available from Incheon Intl Airport to Singapore is Scoot. Our recent data shows that you can find tickets from as low as $79 on this airline. Additional options worth looking into are T'way Air and Asiana Airlines, starting at $186 and $297 round-trip. Scoot is 76% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Consider SriLankan Airlines (93%), Air Canada (76%) or Air India (74%) when booking your flight. These represent the most reliable airlines when flying from Incheon Intl Airport to Singapore.

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

    Looking at all options, your cheapest flight can be booked for $87. While the most popular route (Incheon Intl - Singapore Changi) can be booked for $195 on average our data indicates $614 when flying from Incheon Intl Airport to Singapore.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Incheon Intl to Singapore 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 Singapore?

    Currently, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Singapore (average of $991). Flying from Incheon Intl Airport to Singapore in December is currently the most expensive (average of $1,684). 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

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Top 5 airlines flying from Incheon Intl to Singapore

Discover the top 5 airlines that operate flights from Incheon Intl to Singapore. 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 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapest$79Average$307FlexibilityNo cancel feeOn-timeN/A
T'way AirCheapest$186Average$292FlexibilityNo cancel feeOn-time88%
Asiana AirlinesCheapest$297Average$391FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$307Average$416FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$315Average$443FlexibilityNo cancel feeOn-time81%

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