A traditional Korean palace with a large, ornate building in the center, surrounded by a courtyard with stone pathways and red-roofed structures.

$135 Cheap Flights from Singapore (SIN) to Seoul (ICN)

View $135 flight on Mon, Feb 1, 2027Opens in a new window

Popular airlines from Singapore Changi Airport (SIN) to Incheon Intl. Airport (ICN)

Cheap Flights from Singapore to Seoul (SIN-ICN)

Prices were available within the past 7 days and start at $135 for one-way flights and $243 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scoot
Mon, Feb 15 - Wed, Feb 24
SIN
Singapore
ICN
Seoul
$243 Roundtrip, found 3 days ago
$243
Roundtrip
found 3 days ago
Select Scoot flight, departing Mon, Feb 15 from Singapore to Seoul, returning Wed, Feb 24, priced at $243 found 3 days ago
Trinity Airways
Mon, Oct 26 - Wed, Nov 4
SIN
Singapore
ICN
Seoul
$322 Roundtrip, found 2 days ago
$322
Roundtrip
found 2 days ago
Select Trinity Airways flight, departing Mon, Oct 26 from Singapore to Seoul, returning Wed, Nov 4, priced at $322 found 2 days ago
Shandong Airlines
Wed, Oct 14 - Sat, Oct 17
SIN
Singapore
ICN
Seoul
$353 Roundtrip, found 14 hours ago
$353
Roundtrip
found 14 hours ago
Select Shandong Airlines flight, departing Wed, Oct 14 from Singapore to Seoul, returning Sat, Oct 17, priced at $353 found 14 hours ago
Hainan Airlines
Thu, Oct 22 - Mon, Oct 26
SIN
Singapore
ICN
Seoul
$382 Roundtrip, found 1 day ago
$382
Roundtrip
found 1 day ago
Select Hainan Airlines flight, departing Thu, Oct 22 from Singapore to Seoul, returning Mon, Oct 26, priced at $382 found 1 day ago
Xiamen Airlines
Wed, Jan 6 - Tue, Jan 12
SIN
Singapore
ICN
Seoul
$392 Roundtrip, found 2 days ago
$392
Roundtrip
found 2 days ago
Select Xiamen Airlines flight, departing Wed, Jan 6 from Singapore to Seoul, returning Tue, Jan 12, priced at $392 found 2 days ago
Trinity Airways with baggage
Tue, Oct 6 - Thu, Oct 22
SIN
Singapore
ICN
Seoul
$395 Roundtrip, found 4 hours ago
$395
Roundtrip
found 4 hours ago
Select Trinity Airways with baggage flight, departing Tue, Oct 6 from Singapore to Seoul, returning Thu, Oct 22, priced at $395 found 4 hours ago
China Southern Airlines
Sat, Nov 14 - Sat, Nov 21
SIN
Singapore
ICN
Seoul
$401 Roundtrip, just found
$401
Roundtrip
just found
Select China Southern Airlines flight, departing Sat, Nov 14 from Singapore to Seoul, returning Sat, Nov 21, priced at $401 just found
China Eastern Airlines
Sun, Oct 18 - Thu, Oct 22
SIN
Singapore
ICN
Seoul
$410 Roundtrip, found 1 hour ago
$410
Roundtrip
found 1 hour ago
Select China Eastern Airlines flight, departing Sun, Oct 18 from Singapore to Seoul, returning Thu, Oct 22, priced at $410 found 1 hour ago
Hahn Air Systems
Sun, Oct 18 - Thu, Oct 22
SIN
Singapore
ICN
Seoul
$410 Roundtrip, found 1 hour ago
$410
Roundtrip
found 1 hour ago
Select Hahn Air Systems flight, departing Sun, Oct 18 from Singapore to Seoul, returning Thu, Oct 22, priced at $410 found 1 hour ago
Asiana Airlines
Mon, Sep 21 - Tue, Sep 29
SIN
Singapore
ICN
Seoul
$429 Roundtrip, found 1 day ago
$429
Roundtrip
found 1 day ago
Select Asiana Airlines flight, departing Mon, Sep 21 from Singapore to Seoul, returning Tue, Sep 29, priced at $429 found 1 day ago

Alternative airports near Seoul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gimpo Intl. GMP. Closest option available. Average driving time to city center is 20 minutes. Flights from $1,076
GMP
Gimpo Intl.
Closest
Average driving time to city center20 min
Flights from $1,076

Find the cheapest month to fly from Singapore (SIN) to Seoul (ICN)

September is typically the cheapest month to fly

From $218 - $380 per traveler.

What you need to know for your flight from Changi to Incheon Intl.

Singapore (SIN) to Seoul (ICN) at a glance

Travel from Singapore (SIN) to Seoul (ICN) with a range of airlines offering both full-service and budget options on this long-haul route. Compare the available flights from Singapore to Seoul to find an itinerary that suits your budget and schedule as you prepare to explore the vibrant sights and neighborhoods of Seoul. Discover essential information for your journey from Changi Airport (SIN) to Incheon International Airport (ICN).

  • Fastest flight duration: around 6h 30m non-stop
  • Route distance: roughly 2,900 miles (4,670 km)
  • Flights per week: around 10 departures on average
  • Typical fares (one-way): economy tickets often range from $140–$755, depending on seasonality and how far ahead you book

Flights from Changi Airport (SIN) to Incheon International Airport (ICN)

Based on recent traveler bookings, here are the top airlines flying from Singapore to Seoul, offering both non-stop and one-stop flights. Many routes feature popular layovers, including Suvarnabhumi International Airport (BKK) with a layover of about 1 hour and 15 minutes, Capital International Airport (PEK) at around 3 hours and 45 minutes, and Kuala Lumpur International Airport (KUL) for approximately 2 hours and 45 minutes. This variety allows you to compare prices, total travel time, and cabin class to select the best itinerary for your needs.

  • Korean Air: This full-service airline provides non-stop flights, with one-way prices usually ranging from $210 to $1325. It represents around 34% of departures on this route, with a total travel duration of 6 hours and 30 minutes.
  • Singapore Airlines: As a full-service carrier, it offers non-stop options, with one-way fares typically between $230 and $2525. This airline makes up approximately 18% of the departures on this route, taking 6 hours and 30 minutes for the journey.
  • Asiana Airlines: Another full-service option, it features non-stop flights with one-way fares generally from $230 to $1505. About 15% of departures on this route are operated by Asiana, with a total flight time of 6 hours and 30 minutes.
  • Scoot: A low-cost carrier that provides non-stop service, Scoot's one-way fares range from $140 to $380. It accounts for roughly 13% of departures on this route, with a total journey time of 6 hours and 30 minutes.
  • Jeju Air: This budget airline offers non-stop service, with one-way fares typically between $145 and $415. It constitutes around 3% of the departures on this route, with a total travel time of 6 hours and 30 minutes.

Travelers flying from Singapore to Seoul can opt to upgrade their journey. Top airlines include Korean Air, which provides both business class and premium economy service; Asiana Airlines, offering business class; and Singapore Airlines, also featuring business class options.

Best time to fly from Singapore (SIN) to Seoul (ICN)

The most popular months for travelers flying from Singapore to Seoul are January, February, and March, when peak temperatures in Seoul reach up to 43°F in March. If you prefer quieter travel, consider May, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 62.4°F. For better deals, January usually offers the lowest average one-way fare around $415. Flight availability peaks in May, June, October, November, and December, with approximately 12 flights per week, making it easier to find convenient departure times. April has the fewest flights, with approximately 8 flights per week.

  • Cheapest time to fly: January usually offers good deals with average one-way fare around $415, roughly 20% cheaper than the yearly average.
  • More budget-friendly months to fly: June and November typically offer average one-way fares of around $420.
  • Most flight options: May, June, October, November, and December have the highest number of flights from Singapore to Seoul, with approximately 12 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January29.3°F (-1.5°C)High10$415
February33.6°F (0.9°C)High9$565
March43.0°F (6.1°C)High11$597
April52.7°F (11.5°C)Average8$503
May62.4°F (16.9°C)Low12$477
June70.9°F (21.6°C)Average12$416
July77.0°F (25.0°C)Low9$491
August79.0°F (26.1°C)Low9$534
September72.1°F (22.3°C)Average10$503
October61.0°F (16.1°C)Average12$667
November48.0°F (8.9°C)Average12$425
December33.4°F (0.8°C)Average12$654

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Singapore (SIN) to Seoul (ICN)

  • Singapore to Seoul (SIN-GMP): Gimpo International Airport (GMP) is located approximately 21 miles from Incheon International Airport (ICN).
  • Singapore to Suwon (SIN-SWU): Suwon Airbase Airport (SWU) is about 35 miles away from Incheon International Airport (ICN).
  • Singapore to Cheongju (SIN-CJJ): Cheongju International Airport (CJJ) is roughly 78 miles from Incheon International Airport (ICN).

How to find the best prices for flights from Singapore (SIN) to Seoul (ICN)

Getting some of the best deals on flights from Singapore to Seoul is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Afternoon departures (12pm-6pm) often offer lower prices, while morning flights (5am-12pm) are the most popular. Additionally, flying on Mondays typically provides cheaper options, even though Saturdays are the busiest travel days.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Incheon International Airport from Changi Airport

Seoul welcomes travelers from Singapore with a range of transport options based on price, convenience, and proximity. Here's how to reach Seoul efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Seoul, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Incheon International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Incheon International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Incheon International Airport, Incheon Int'l Airport Terminal 2 Station, a metro station, is located about 0.1 miles away on foot, while Yongyu Station, a train station, is situated approximately 3.6 miles from the airport and is most conveniently reached by car.

Frequently asked questions

How much does a flight from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) cost?
You can find cheap one-way flights from $135 and cheap return flights from $243 Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) with Expedia. One-way flights usually range from $226 to $2419, and return flights typically cost between $327 and $3089. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
August is the cheapest month to fly from Singapore (SIN) to Seoul (ICN), with average return fares around $414. This is about 7% lower than the average price throughout the year, as travel demand tends to be lower during this time. Other economical months to consider are January and May.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
8 airlines operate nonstop service from SIN to ICN:

  • Singapore Airlines operates around 27 direct flights from SIN to ICN every week
  • Korean Air operates around 20 direct flights from SIN to ICN every week
  • Jeju Air with Bag operates around 8 direct flights from SIN to ICN every week
  • Jeju Air operates around 8 direct flights from SIN to ICN every week
  • Asiana Airlines operates around 7 direct flights from SIN to ICN every week

What is the cheapest airline that flies from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
T'Way Air is one of the cheapest airlines offering connecting flights from Singapore (SIN) to Seoul (ICN), with round-trip tickets starting from around $281. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
To find a cheap flight from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
The best airline to fly with from Singapore (SIN) to Seoul (ICN) will differ from traveler to traveler. If you like to fly early, Korean Air offers early morning flights. If price is the most important factor, T'Way Air typically offers the lowest fares. Vietjet Air offers the most daily flights from Singapore to Seoul, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
When traveling from Singapore to Seoul, August and May are the best months to fly, with return flights averaging around $414. August is ideal for enjoying summer festivities, while May offers mild weather and beautiful blooms, making it a delightful time to explore Seoul.*Prices based on flights available on Expedia in the last year.
How many flights per day from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
There are approximately 13 nonstop flights per day from Changi (SIN) to Incheon Intl. (ICN). For more options, look at flights that include layovers.
What is the earliest flight from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
The earliest flight from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) typically departs at around 12:10 AM, operated by Singapore Airlines. This service is seasonal, active in January, February, March, October, November, and December. An early departure like this can help you maximize your time in Seoul. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
The most popular departure times for flights from Changi (SIN) to Incheon International Airport (ICN) are in the early morning, from midnight to 3am. About 21% of passengers prefer this time window. Many major carriers, including Cathay Pacific and Singapore Airlines, offer flights during this window. This timing works well because it allows you to arrive in Seoul early in the day, giving you a full day to enjoy the city.
How long does it take to fly from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
Direct flights from SIN to ICN usually take about 6 hours 30 minutes, traveling roughly 2,874 miles. If you opt for a connecting flight, expect to add around 2 hours 30 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
You can fly business class between SIN and ICN. Airlines that offer business class service on this route include:

  • Thai Airways International
  • Philippine Airlines
  • China Eastern Airlines
  • Malaysia Airlines
  • Korean Air
  • Air China
  • Cathay Pacific
  • China Airlines
  • Shenzhen Airlines
  • Singapore Airlines

How much is a business class flight from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
A direct, return business class ticket from Singapore (SIN) to Seoul (ICN) typically costs between $2,436 - $4,214. A non-stop, one-way business class flight is usually around $1,335 - $1,934. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) flight with Expedia?
It's easy to earn miles on a Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seoul from Changi (SIN)?
When traveling from Changi (SIN) to Seoul, you can fly into Gimpo Intl. (GMP) and Incheon Intl. (ICN). Some flights may connect through major hubs like Hong Kong Intl. (HKG), Changshui Intl. (KMG) before reaching Seoul. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) at the last minute?
Typically, booking a last minute flight from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) flight and hotel package?
Securing a Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) Incheon Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.)?
If you booked your Singapore (SIN-Changi) to Seoul (ICN-Incheon Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Changi
Destination airport
Incheon Intl.
Airlines serving
Air China, Air Macau Company, Asiana Airlines, Cathay Pacific, China Airlines, China Eastern Airlines, China Southern Airlines, EVA Airways, Garuda Indonesia, Hahn Air Systems, Korean Air, Malaysia Airlines, Philippine Airlines, Scoot, Singapore Airlines, Thai Airways International, Trinity Airways with baggage, Vietjet Air, Vietnam Airlines, Xiamen Airlines
Roundtrip price
$243
Distance
2874 mi
Average flight time
6 hours 47 mins

Book with confidence

Singapore to Seoul Flights

The cheapest times to fly from Singapore to Seoul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Singapore to Seoul are during the month of February. You can find some of the cheapest flights from Singapore to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Singapore to Seoul

Sunday is one of the best days to book for cheap flights from Singapore to Seoul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Singapore to Seoul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Singapore to Seoul in 2026. You can also book with separate airlines for your outbound and return journeys, from $135 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Singapore to Seoul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Singapore to Seoul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Singapore to Seoul Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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