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Cheap flights from Seoul to Singapore from $121 GMP, ICN → SIN, XSP

Gimpo International Airport (GMP), Incheon International Airport (ICN) → Changi International Airport (SIN), Seletar (XSP)

The cheapest return found recently is $458 with Scoot, 20 Jan 2027 – 3 Feb 2027, found 2 days ago. The cheapest one-way found recently is $121 with AirAsia, 20 Feb 2027, found 2 days ago.

Cheapest one-way found recently
$121, found 2 days ago
Cheapest return found recently
$458, 20 Jan 2027 to 3 Feb 2027
Usual return price
$311 to $437
Cheapest month to fly
November 2026, return fares from $291 found in the last 7 days
Airlines with nonstop flights
Singapore Airlines, Scoot, Jeju Air, T'way Air, Korean Air, Asiana Airlines
Shortest nonstop flight found
6 h 45 min

Return

The cheapest return fare on each of 17 departure dates is usually $311 to $437.

Cheapest return found recently

$458

20 Jan 2027 – 3 Feb 2027 · Scoot

Incheon International Airport (ICN) → Changi International Airport (SIN)

Leaves 8:35 p.m. · Return leaves 9:10 a.m. · 25 h 5 min of travel, both ways together

out 1 stop, back nonstop · via Changle International Airport (FOC) · overnight connection · 11 h connection

found 2 days ago

See prices for these datesCheck today's price

Cheapest nonstop return

$459

20 Jan 2027 – 3 Feb 2027 · Scoot

Incheon International Airport (ICN) → Changi International Airport (SIN)

Leaves 11:25 a.m. · Return leaves 9:10 a.m. · 13 h 5 min of travel, both ways together

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

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Found recently, and the cheapest we hold

Cheapest found recently $458 20 Jan 2027 – 3 Feb 2027found 2 days agoSee prices for these dates

Cheapest we hold, of any age $291 24 Nov – 29 Novfound 3 days agoSee prices for these dates

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $244 to $316.

At $458, the cheapest return found recently is above that range.

Those were the prices on those days, not today's.

Is this a good return price?

Compared with the cheapest return fare on each of 17 departure dates from 24 Nov to 11 Jun 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other 14-night return fares leaving within 3 days of 20 Jan 2027 to compare.

Every date we hold

310 fares on 17 departure dates

24 Nov – 29 Nov: $291, found 3 days ago3 Dec – 4 Dec: $594, found 2 days ago10 Dec – 11 Dec: $720, found 2 days ago12 Dec – 12 Dec: $426, found 6 days ago18 Dec – 20 Dec: $319, found 4 days ago19 Dec – 20 Dec: $299, found 7 days ago7 Jan 2027 – 13 Jan 2027: $359, found 8 days ago8 Jan 2027 – 13 Jan 2027: $347, found 6 days ago20 Jan 2027 – 3 Feb 2027: $458, found 2 days ago2 Feb 2027 – 12 Feb 2027: $458, found 3 days ago2 Mar 2027 – 27 Mar 2027: $322, found 5 days ago6 Mar 2027 – 7 Mar 2027: $402, found 5 days ago13 Mar 2027 – 15 Mar 2027: $322, found 4 days ago26 May 2027 – 31 May 2027: $293, found 5 days ago27 May 2027 – 1 Jun 2027: $293, found 5 days ago1 Jun 2027 – 1 Jun 2027: $437, found 5 days ago11 Jun 2027 – 25 Jun 2027: $311, found 3 days agoDecJanMarMayJun
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
24 Nov – 29 Nov$291China EasternIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
3 Dec – 4 Dec$594Air BusanGimpo International Airport (GMP) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
10 Dec – 11 Dec$720Eastar JetGimpo International Airport (GMP) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
12 Dec – 12 Dec$426ScootIncheon International Airport (ICN) → Changi International Airport (SIN)out nonstop, back 1 stopfound 6 days agoSee prices for these dates
18 Dec – 20 Dec$319China EasternIncheon International Airport (ICN) → Changi International Airport (SIN)out 2 stops, back 1 stopfound 4 days agoSee prices for these dates
19 Dec – 20 Dec$299China EasternIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
7 Jan 2027 – 13 Jan 2027$359Shandong AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 8 days agoSee prices for these dates
8 Jan 2027 – 13 Jan 2027$347China EasternIncheon International Airport (ICN) → Changi International Airport (SIN)out 2 stops, back nonstopfound 6 days agoSee prices for these dates
20 Jan 2027 – 3 Feb 2027$458ScootIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back nonstopfound 2 days agoSee prices for these dates
2 Feb 2027 – 12 Feb 2027$458ScootGimpo International Airport (GMP) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
2 Mar 2027 – 27 Mar 2027$322Shandong AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
6 Mar 2027 – 7 Mar 2027$402Vietnam AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
13 Mar 2027 – 15 Mar 2027$322Shandong AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
26 May 2027 – 31 May 2027$293Shandong AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
27 May 2027 – 1 Jun 2027$293Shandong AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
1 Jun 2027 – 1 Jun 2027$437China EasternIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
11 Jun 2027 – 25 Jun 2027$311Shandong AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $291.

November 2026From $291Cheapest seen1 departure date24 Nov – 29 Nov · found 3 days agoSee prices for these dates
December 2026From $2995 departure dates19 Dec – 20 Dec · found 7 days agoSee prices for these dates
January 2027From $3473 departure dates8 Jan 2027 – 13 Jan 2027 · found 6 days agoSee prices for these dates
February 2027From $4581 departure date2 Feb 2027 – 12 Feb 2027 · found 3 days agoSee prices for these dates
March 2027From $3223 departure dates2 Mar 2027 – 27 Mar 2027 · found 5 days agoSee prices for these dates
May 2027From $2932 departure dates26 May 2027 – 31 May 2027 · found 5 days agoSee prices for these dates
June 2027From $3112 departure dates11 Jun 2027 – 25 Jun 2027 · found 3 days agoSee prices for these dates

One-way

The cheapest one-way fare on each of 9 departure dates is usually $122 to $165.

Cheapest one-way found recently

$121

20 Feb 2027 · AirAsia

Incheon International Airport (ICN) → Changi International Airport (SIN)

Leaves 7:35 a.m. · 13 h 5 min trip

1 stop

found 2 days ago

Open this tripCheck today's price

Cheapest nonstop one-way

$106

27 Feb 2027 · Scoot

Incheon International Airport (ICN) → Changi International Airport (SIN)

Leaves 11:25 a.m. · 6 h 45 min trip

nonstop

found 7 days ago

Open this tripCheck today's price

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Found recently, and the cheapest we hold

Cheapest found recently $121 20 Feb 2027found 2 days agoOpen this trip

Cheapest we hold, of any age $106 27 Feb 2027found 7 days agoOpen this trip

What have prices looked like?

Over 44 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $66 to $283.

$121, the cheapest one-way found recently, sits here in that range of $66 to $283.

Those were the prices on those days, not today's.

Is this a good one-way price?

Compared with the cheapest one-way fare on each of 9 departure dates from 20 Feb 2027 to 19 Sept 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 20 Feb 2027 to compare.

Every date we hold

14 fares on 9 departure dates

20 Feb 2027: $121, found 2 days ago27 Feb 2027: $106, found 7 days ago14 May 2027: $158, found 5 days ago1 Jun 2027: $143, found 5 days ago22 Jun 2027: $154, found 3 days ago16 Aug 2027: $122, found 7 days ago11 Sept 2027: $165, found 4 days ago18 Sept 2027: $296, found 4 days ago19 Sept 2027: $275, found 2 days agoFebMayJunAugSep
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
20 Feb 2027$121AirAsiaIncheon International Airport (ICN) → Changi International Airport (SIN)1 stopfound 2 days agoOpen this trip
27 Feb 2027$106ScootIncheon International Airport (ICN) → Changi International Airport (SIN)nonstopfound 7 days agoOpen this trip
14 May 2027$158Shandong AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)1 stopfound 5 days agoOpen this trip
1 Jun 2027$143Shandong AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)1 stopfound 5 days agoOpen this trip
22 Jun 2027$154Shandong AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)1 stopfound 3 days agoOpen this trip
16 Aug 2027$122AirAsiaIncheon International Airport (ICN) → Changi International Airport (SIN)1 stopfound 7 days agoOpen this trip
11 Sept 2027$165Shandong AirlinesIncheon International Airport (ICN) → Changi International Airport (SIN)1 stopfound 4 days agoOpen this trip
18 Sept 2027$296Korean AirGimpo International Airport (GMP) → Changi International Airport (SIN)2 stopsfound 4 days agoOpen this trip
19 Sept 2027$275Korean AirGimpo International Airport (GMP) → Changi International Airport (SIN)1 stopfound 2 days agoOpen this trip

Which month looks cheapest?

February 2027 is the cheapest month — from $106.

February 2027From $106Cheapest seen2 departure dates27 Feb 2027 · found 7 days agoOpen this trip
May 2027From $1581 departure date14 May 2027 · found 5 days agoOpen this trip
June 2027From $1432 departure dates1 Jun 2027 · found 5 days agoOpen this trip
August 2027From $1221 departure date16 Aug 2027 · found 7 days agoOpen this trip
September 2027From $1653 departure dates11 Sept 2027 · found 4 days agoOpen this trip

Premium cabin fares from Seoul to Singapore

We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.

How far ahead were prices cheapest for Seoul to Singapore?

Return

The cheapest fares were 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

See these ranges as a table
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$295$263Cheapest seen16
7–13 days$356$291+21%10
14–29 days$385$288+31%14
30–59 days$300$259+2%34
60–89 days$373$259+26%45
90–179 days$316$309+7%39
180+ days$306$244+4%39

One-way

The cheapest fares were 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (44 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

See these ranges as a table
Typical price in each booking range — one way, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$84$66Cheapest seen7
90–179 days$126$101+50%13
180+ days$129$110+54%43

Live price for these dates

The cheapest return found recently is for 20 Jan 2027 – 3 Feb 2027. A live search on this page shows what those dates cost now, for one adult in economy.

Questions about this trip

How much is a return flight from Seoul to Singapore?

The cheapest return found recently is $458 with Scoot, 20 Jan 2027 to 3 Feb 2027, found 2 days ago. The cheapest return we hold, of any age, is $291 with China Eastern, 24 Nov to 29 Nov, found 3 days ago. The cheapest return fare on each of 17 departure dates is usually $311 to $437.

How much is a one-way flight from Seoul to Singapore?

The cheapest one-way found recently is $121 with AirAsia, 20 Feb 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $106 with Scoot, 27 Feb 2027, found 7 days ago. The cheapest one-way fare on each of 9 departure dates is usually $122 to $165.

What is the cheapest month to fly from Seoul to Singapore?

November 2026 is the cheapest month for a return, from $291, 24 Nov to 29 Nov, found 3 days ago. February 2027 is the cheapest month for a one-way, from $106, 27 Feb 2027, found 7 days ago.

How far ahead should I book a flight from Seoul to Singapore?

In 49 days of prices between 24 Sept and 11 Nov, return fares were cheapest 0 to 6 days before departure. In 44 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 0 to 6 days before departure.

Is there a direct flight from Seoul to Singapore?

Yes, the cheapest nonstop return found recently is $459 with Scoot, 20 Jan 2027 to 3 Feb 2027, found 2 days ago. The cheapest nonstop one-way found recently is $106 with Scoot, 27 Feb 2027, found 7 days ago.

How long is the flight from Seoul to Singapore?

The cheapest nonstop one-way found recently, with Scoot on 27 Feb 2027, takes 6 h 45 min from Incheon International Airport (ICN) to Changi International Airport (SIN). The cheapest one-way found recently, with AirAsia on 20 Feb 2027, takes 13 h 5 min with 1 stop.

Which airlines have the cheapest flights from Seoul to Singapore?

Between 24 Nov and 11 Jun 2027, Shandong Airlines has the cheapest return on 6 of the 17 departure dates we hold, China Eastern on 5 and Scoot on 3. Between 20 Feb 2027 and 19 Sept 2027, Shandong Airlines has the cheapest one-way on 4 of the 9 departure dates we hold, AirAsia on 2 and Korean Air on 2.

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work