$157 Cheap Flights from Seoul (GMP) to Singapore (SIN)

View $157 flight on Tue, Dec 2, 2025Opens in a new window

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

Cheap Flights from Seoul to Singapore (GMP-SIN)

Prices were available within the past 7 days and start at $157 for one-way flights and $305 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Mon, Oct 13 - Mon, Oct 27
GMP
Seoul
SIN
Singapore
$305 Roundtrip, found 1 hour ago
$305
Roundtrip
found 1 hour ago
Select China Eastern Airlines flight, departing Mon, Oct 13 from Seoul to Singapore, returning Mon, Oct 27, priced at $305 found 1 hour ago
China Eastern Airlines
Sun, Oct 26 - Sat, Nov 8
GMP
Seoul
SIN
Singapore
$315 Roundtrip, found 6 days ago
$315
Roundtrip
found 6 days ago
Select China Eastern Airlines flight, departing Sun, Oct 26 from Seoul to Singapore, returning Sat, Nov 8, priced at $315 found 6 days ago
Air China
Mon, Nov 10 - Sun, Nov 16
GMP
Seoul
SIN
Singapore
$317 Roundtrip, found 9 hours ago
$317
Roundtrip
found 9 hours ago
Select Air China flight, departing Mon, Nov 10 from Seoul to Singapore, returning Sun, Nov 16, priced at $317 found 9 hours ago
Air China
Wed, Oct 15 - Tue, Oct 28
GMP
Seoul
SIN
Singapore
$318 Roundtrip, found 1 hour ago
$318
Roundtrip
found 1 hour ago
Select Air China flight, departing Wed, Oct 15 from Seoul to Singapore, returning Tue, Oct 28, priced at $318 found 1 hour ago
China Eastern Airlines
Mon, Oct 13 - Sun, Nov 2
GMP
Seoul
SIN
Singapore
$322 Roundtrip, found 1 hour ago
$322
Roundtrip
found 1 hour ago
Select China Eastern Airlines flight, departing Mon, Oct 13 from Seoul to Singapore, returning Sun, Nov 2, priced at $322 found 1 hour ago
China Eastern Airlines
Mon, Oct 27 - Sat, Nov 8
GMP
Seoul
SIN
Singapore
$324 Roundtrip, found 6 days ago
$324
Roundtrip
found 6 days ago
Select China Eastern Airlines flight, departing Mon, Oct 27 from Seoul to Singapore, returning Sat, Nov 8, priced at $324 found 6 days ago
Air China
Fri, Nov 14 - Sun, Nov 16
GMP
Seoul
SIN
Singapore
$331 Roundtrip, found 1 day ago
$331
Roundtrip
found 1 day ago
Select Air China flight, departing Fri, Nov 14 from Seoul to Singapore, returning Sun, Nov 16, priced at $331 found 1 day ago
Air China
Wed, Oct 15 - Mon, Oct 27
GMP
Seoul
SIN
Singapore
$332 Roundtrip, found 1 hour ago
$332
Roundtrip
found 1 hour ago
Select Air China flight, departing Wed, Oct 15 from Seoul to Singapore, returning Mon, Oct 27, priced at $332 found 1 hour ago
Air China
Wed, Oct 22 - Sat, Oct 25
GMP
Seoul
SIN
Singapore
$334 Roundtrip, found 5 days ago
$334
Roundtrip
found 5 days ago
Select Air China flight, departing Wed, Oct 22 from Seoul to Singapore, returning Sat, Oct 25, priced at $334 found 5 days ago
Japan Airlines
Sat, Dec 20 - Tue, Dec 30
GMP
Seoul
SIN
Singapore
$1,956 Roundtrip, found 8 hours ago
$1,956
Roundtrip
found 8 hours ago
Select Japan Airlines flight, departing Sat, Dec 20 from Seoul to Singapore, returning Tue, Dec 30, priced at $1,956 found 8 hours ago

Alternative airports near Singapore

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

Select flight to Changi SIN. Cheapest option available. Average driving time to city center is 18 minutes. Flights from $318
SIN
Changi
Cheapest
Average driving time to city center18 min
Flights from $318

Frequently asked questions

How much does a flight from Gimpo Intl. Airport (GMP) to Changi Airport (SIN) cost?
Secure a cheap one-way flight from $157 or cheap return flight from $305 from Gimpo Intl. Airport (GMP) to Changi Airport (SIN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Gimpo Intl. Airport (GMP) to Changi Airport (SIN)?
October is the least expensive month to fly from GMP to SIN. Traveling during quieter months is often the key to finding a great deal.
Which airlines fly direct from Gimpo Intl. Airport (GMP) to Changi Airport (SIN)?
Direct flights aren't available from Seoul (GMP-Gimpo Intl.) to Changi Airport (SIN). However, you'll find other airports with nonstop flights. Board your plane at Incheon Intl. Airport (ICN) and travel straight to Singapore without any detours.
What is the cheapest airline that flies from Gimpo Intl. Airport (GMP) to Changi Airport (SIN)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest GMP to SIN flight.
How many flights per day from Gimpo Intl. Airport (GMP) to Changi Airport (SIN)?
You'll have to catch a flight with a layover if you're traveling from Gimpo Intl. Airport (GMP) to Changi Airport (SIN). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from GMP to SIN?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gimpo Intl. Airport (GMP) to Changi Airport (SIN)?
Choose a flight from Gimpo Intl. Airport (GMP) to Changi Airport (SIN) that takes off before 3 PM to reduce the likelihood of delays. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Gimpo Intl. Airport (GMP) to Changi Airport (SIN) last-minute?
Holding off until just before your departure to book your flight from GMP to SIN generally means paying more. While you might find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible for the best chance of landing a bargain.
Is it cheaper to book a GMP to SIN flight and hotel package?
You'll generally save money by booking a GMP to SIN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your ideal flights and accommodations, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Gimpo Intl. Airport (GMP) to Changi Airport (SIN)?
You can usually reschedule or cancel your GMP to SIN flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Gimpo Intl.
Destination airport
Changi
Airlines serving
Air China, China Eastern Airlines, Japan Airlines
Roundtrip price
$305
Distance
2891 mi

Book with confidence

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 October. 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 2025. You can also book with separate airlines for your outbound and return journeys, from $157 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

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.