$272 Cheap Flights from Seoul (GMP) to Singapore (SIN)

View $272 flight on Wed, Mar 18, 2026Opens in a new window

Popular airlines from Gimpo Intl. Airport (GMP) to Singapore Changi Airport (SIN)

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Cheap Flights from Seoul to Singapore (GMP-SIN)

Prices were available within the past 7 days and start at $272 for one-way flights and $536 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air China
Wed, Apr 22 - Thu, Apr 23
GMP
Seoul
SIN
Singapore
$536 Roundtrip, found 5 days ago
$536
Roundtrip
found 5 days ago
Select Air China flight, departing Wed, Apr 22 from Seoul to Singapore, returning Thu, Apr 23, priced at $536 found 5 days ago
Air China
Wed, Apr 22 - Sun, Apr 26
GMP
Seoul
SIN
Singapore
$555 Roundtrip, found 6 days ago
$555
Roundtrip
found 6 days ago
Select Air China flight, departing Wed, Apr 22 from Seoul to Singapore, returning Sun, Apr 26, priced at $555 found 6 days ago
Air China
Wed, Mar 25 - Wed, Apr 1
GMP
Seoul
SIN
Singapore
$556 Roundtrip, found 5 days ago
$556
Roundtrip
found 5 days ago
Select Air China flight, departing Wed, Mar 25 from Seoul to Singapore, returning Wed, Apr 1, priced at $556 found 5 days ago
China Eastern Airlines
Mon, Mar 16 - Mon, Mar 23
GMP
Seoul
SIN
Singapore
$614 Roundtrip, found 1 day ago
$614
Roundtrip
found 1 day ago
Select China Eastern Airlines flight, departing Mon, Mar 16 from Seoul to Singapore, returning Mon, Mar 23, priced at $614 found 1 day ago
China Eastern Airlines
Mon, Mar 16 - Mon, Mar 23
GMP
Seoul
SIN
Singapore
$626 Roundtrip, found 1 day ago
$626
Roundtrip
found 1 day ago
Select China Eastern Airlines flight, departing Mon, Mar 16 from Seoul to Singapore, returning Mon, Mar 23, priced at $626 found 1 day ago
Air China
Tue, Aug 4 - Thu, Aug 6
GMP
Seoul
SIN
Singapore
$628 Roundtrip, found 4 days ago
$628
Roundtrip
found 4 days ago
Select Air China flight, departing Tue, Aug 4 from Seoul to Singapore, returning Thu, Aug 6, priced at $628 found 4 days ago
China Eastern Airlines
Tue, Aug 4 - Thu, Aug 6
GMP
Seoul
SIN
Singapore
$656 Roundtrip, found 4 days ago
$656
Roundtrip
found 4 days ago
Select China Eastern Airlines flight, departing Tue, Aug 4 from Seoul to Singapore, returning Thu, Aug 6, priced at $656 found 4 days ago
Air China
Wed, Mar 25 - Wed, Apr 1
GMP
Seoul
SIN
Singapore
$658 Roundtrip, found 2 days ago
$658
Roundtrip
found 2 days ago
Select Air China flight, departing Wed, Mar 25 from Seoul to Singapore, returning Wed, Apr 1, priced at $658 found 2 days ago
China Eastern Airlines
Mon, Mar 16 - Mon, Mar 23
GMP
Seoul
SIN
Singapore
$661 Roundtrip, found 1 day ago
$661
Roundtrip
found 1 day ago
Select China Eastern Airlines flight, departing Mon, Mar 16 from Seoul to Singapore, returning Mon, Mar 23, priced at $661 found 1 day ago
Japan Airlines
Fri, Oct 30 - Mon, Nov 2
GMP
Seoul
SIN
Singapore
$1,973 Roundtrip, found 1 hour ago
$1,973
Roundtrip
found 1 hour ago
Select Japan Airlines flight, departing Fri, Oct 30 from Seoul to Singapore, returning Mon, Nov 2, priced at $1,973 found 1 hour ago

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Frequently asked questions

How much does a flight from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi) cost?
You can find cheap one-way flights from $272 and cheap return flights from $536 GMP to SIN with Expedia. 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 our cheapest fares first, and use the Price Tracking tool to receive alerts when GMP to SIN ticket fares go up or down.
What is the cheapest month to fly from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
The cheapest month to fly from GMP to SIN is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
Enter GMP to SIN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
Asiana Airlines, Korean Air and Japan Airlines are just some of the carriers that fly from Seoul (GMP) to Singapore (SIN). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. 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 Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
To find a cheap flight from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi), 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 time to fly from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
The earliest flight from Gimpo International Airport (GMP) to Changi Airport (SIN) typically departs at around 8:40 AM, operated by Asiana Airlines and Singapore Airlines. This seasonal service is available in September, providing a good option for those planning a trip to Singapore. An early departure allows you to maximize your time in this vibrant city. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
a Sunday typically has the most flights from Gimpo Intl. (GMP) to Changi (SIN), with approximately 6 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include China Eastern Airlines, Asiana Airlines, and Air China.
What are the most popular departure times for flights from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
The most popular departure times for flights from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi) are from 12pm to 3pm. About 74% of passengers prefer this time window. Many major carriers, including China Eastern Airlines, China Airlines, and China Southern Airlines, offer flights during this window. This timing works well because it allows travelers to enjoy a leisurely morning before heading to the airport.
How long does it take to fly from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
Flying from GMP to SIN with a connection usually takes about 12 hours, traveling roughly 2,891 miles. 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 Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
You can fly business class between GMP and SIN. Airlines that offer business class service on this route include:

  • Korean Air
  • China Eastern Airlines
  • Air China
  • Asiana Airlines

How do I earn miles on a Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi) flight with Expedia?
It's easy to earn miles on a Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi) 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 Singapore from Gimpo Intl. (GMP)?
From Gimpo Intl. (GMP), you can fly into Changi (SIN) to reach Singapore. Some flights may connect through major hubs like Hongqiao Intl. (SHA), Capital Intl. (PEK) before reaching Singapore. 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 Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi) at the last minute?
Typically, booking a last minute flight from Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi) 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 Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi) flight and hotel package?
Securing a Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi) Singapore 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 Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi)?
If you booked your Seoul (GMP-Gimpo Intl.) to Singapore (SIN-Changi) 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
Gimpo Intl.
Destination airport
Changi
Airlines serving
Air China, China Eastern Airlines, Japan Airlines
Roundtrip price
$536
Distance
2891 mi

Book with confidence

Seoul to Singapore Flights

The cheapest times to fly from Seoul to Singapore

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 Seoul to Singapore are during the month of April. You can find some of the cheapest flights from Seoul to Singapore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seoul to Singapore

Sunday is one of the best days to book for cheap flights from Seoul to Singapore: 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 Seoul to Singapore

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 Seoul to Singapore in 2026. You can also book with separate airlines for your outbound and return journeys, from $272 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 Seoul to Singapore 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 Seoul to Singapore 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.

 

Seoul to Singapore Flights

*Flight schedules are subject to change.

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*Available to One Key members.