Flights to Seoul

$337 Cheap flights to Seoul

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Seoul departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

AIR PREMIA Logo
3:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
AIR PREMIA Logo
6:20 pm - 1:00 pmICN-SFO
10h 40mnonstop
$615AIR PREMIA
Find Deal
Mon, Sep 8 - Mon, Sep 15
 Logo
10:00 am - 4:05 pmSEA-ICN
14h 05m1 stop
 Logo
9:45 am - 6:36 pmICN-SEA
24h 51m2 stops
Mon, Sep 8 - Wed, Sep 17
United Airlines Logo
10:35 am - 3:00 pmSFO-ICN
12h 25mnonstop
United Airlines Logo
11:30 am - 6:10 amICN-SFO
10h 40mnonstop
$661United Airlines
Find Deal
Fri, Sep 5 - Mon, Sep 15
United Airlines Logo
10:40 am - 3:00 pmSFO-ICN
12h 20mnonstop
United Airlines Logo
4:50 pm - 11:35 amICN-SFO
10h 45mnonstop
$662United Airlines
Find Deal
Sun, Aug 24 - Sat, Sep 6
Air Canada Logo
7:15 pm - 4:05 pmSEA-ICN
28h 50m1 stop
Air Canada Logo
5:45 pm - 10:16 pmICN-SEA
20h 31m1 stop
$675Air Canada
Find Deal
Tue, Sep 9 - Fri, Sep 26
Air Canada Logo
6:00 am - 4:05 pmLAX-ICN
18h 05m1 stop
Air Canada Logo
5:45 pm - 5:58 pmICN-LAX
16h 13m1 stop
$678Air Canada
Find Deal
Mon, Sep 8 - Thu, Sep 18
Asiana Airlines Logo
2:15 pm - 5:55 pmSEA-ICN
11h 40mnonstop
Asiana Airlines Logo
9:00 pm - 1:55 pmICN-SEA
9h 55mnonstop
$812Asiana Airlines
Find Deal
Sat, Oct 25 - Sun, Nov 2
Korean Air Logo
8:00 am - 5:50 pmSEA-ICN
17h 50m1 stop
Korean Air Logo
4:40 pm - 10:40 amICN-SEA
10h 00mnonstop
$815Korean Air
Find Deal
Fri, Sep 26 - Wed, Oct 15
Korean Air Logo
12:50 pm - 4:40 pmSEA-ICN
11h 50mnonstop
Korean Air Logo
4:40 pm - 10:40 amICN-SEA
10h 00mnonstop
$816Korean Air
Find Deal
Fri, Sep 26 - Wed, Oct 15
Asiana Airlines Logo
2:15 pm - 5:55 pmSEA-ICN
11h 40mnonstop
Asiana Airlines Logo
6:20 pm - 12:30 pmICN-SEA
10h 10mnonstop
$820Asiana Airlines
Find Deal
Sun, Sep 7 - Sun, Sep 14

momondo Fare Finder

 
Locate flights to Seoul that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 832,500 searches and data was last updated on August 12, 2025.
Use the filters below to find and compare flights to Seoul that are best for you.

Fly from

Route

Depart

Return

Price

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 9/8

3:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Mon 9/15

6:20 pm-1:00 pm

Nonstop10h 40m

$615

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Mon 9/8

10:00 am-4:05 pm

1 stop14h 05m

Incheon Intl

Wed 9/17

9:45 am-6:36 pm

2 stops24h 51m

$633

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 9/5

10:35 am-3:00 pm

Nonstop12h 25m

Incheon Intl

Mon 9/15

11:30 am-6:10 am

Nonstop10h 40m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 8/24

10:40 am-3:00 pm

Nonstop12h 20m

Incheon Intl

Sat 9/6

4:50 pm-11:35 am

Nonstop10h 45m

$662

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Tue 9/9

7:15 pm-4:05 pm

1 stop28h 50m

Incheon Intl

Fri 9/26

5:45 pm-10:16 pm

1 stop20h 31m

$675

Los AngelesIncheon

LAX - ICN

LAXICN

Los Angeles

Mon 9/8

6:00 am-4:05 pm

1 stop18h 05m

Incheon Intl

Thu 9/18

5:45 pm-5:58 pm

1 stop16h 13m

$678

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 10/25

2:15 pm-5:55 pm

Nonstop11h 40m

Incheon Intl

Sun 11/2

9:00 pm-1:55 pm

Nonstop9h 55m

$812

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 9/26

8:00 am-5:50 pm

1 stop17h 50m

Incheon Intl

Wed 10/15

4:40 pm-10:40 am

Nonstop10h 00m

$815

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 9/26

12:50 pm-4:40 pm

Nonstop11h 50m

Incheon Intl

Wed 10/15

4:40 pm-10:40 am

Nonstop10h 00m

$816

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sun 9/7

2:15 pm-5:55 pm

Nonstop11h 40m

Incheon Intl

Sun 9/14

6:20 pm-12:30 pm

Nonstop10h 10m

$820

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

Seoul flights insights and trends

Explore insights for your Seoul flight to craft the best travel plan

What is the cheapest month to fly to Seoul?

The month of January is another great option to travel to Seoul, with average flight prices from United States averaging around $1,102.

What is the absolute cheapest flight to Seoul?

In the past two weeks, users have booked deals to Seoul for $39/person, which is 82% cheaper than the average flight to Seoul. To find the cheapest price to Seoul from your area, use momondo’s Airport-to-Airport Pricing Tool.
See prices from:

What is the cheapest day to depart on your flight to Seoul?

According to our data, Wednesday is the cheapest day to fly to Seoul from United States. The lowest ticket price found for a Wednesday departure recently was $1,172. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Saturday, with ticket prices averaging around $1,336.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from United States in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,154 when looking at flights departing in the morning. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,283 per ticket.

How far in advance should I book a flight to Seoul?

You are more likely to see cheaper flights to Seoul from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,533 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from United States for as low as $1,348 on momondo.

Cheapest flights to Seoul

Find the cheapest flights to Seoul from your nearest city or airport
CHEAPEST MONTH TO FLY TO SEOUL FROM LOS ANGELESNovember16% cheaperFlying from Los Angeles to Seoul costs on average just $844 in November
MOST EXPENSIVE MONTH TO FLY TO SEOUL FROM LOS ANGELESDecember31% more expensiveIt costs about $1,321 for flights to Seoul from Los Angeles in December
MOST POPULAR MONTH TO FLY TO SEOUL FROM LOS ANGELESJune271% more users visitedMore momondo users searched in flights to Seoul from Los Angeles in June than any other month

Cheap Seoul flight deals and tips

Summary info about Seoul flight prices, duration and airlines

Best One-Way Price

$337

Best Round-Trip Price

$615

Fastest flight time

13h 00m

Popular in

June
The best one-way flight price to Seoul from United States in the last 72 hours is $337 (San Francisco to Incheon Intl).
The best round-trip flight price to Seoul from United States in the last 72 hours is $615 (San Francisco to Incheon Intl).
The fastest flight to Seoul from United States takes 13h 00m (San Francisco to Incheon Intl).
June has the highest demand for flights to Seoul, with a 8% price increase on average.

Frequently asked questions about flying to Seoul

What is there to do in Seoul when it’s raining?

If you are planning a flight to Seoul and are looking to avoid the rain, you should avoid traveling during the months of May, June, and July. These months will typically see 5.1 inches or more of rain, meaning that rain is likely. If you do run into rain while in Seoul, there are still things to do and ways to enjoy your trip. Korea House is a great museum to visit near Seoul and is especially great when the weather outside is less than desirable. For those looking to get out of the rain and do a little shopping, check out Myeongdong Shopping Street.

How far in advance should I book a flight to Seoul?

Most flyers found that booking tickets 81 days in advance of their planned departure date is the best time to get cheap flights to Seoul. During this timeframe, flight prices are around $1,272. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $850.

Is there an alternative airport near Seoul?

Seoul Gimpo Intl Airport can be an alternative airport used for travel to Seoul.

Is there a cheaper alternative to flying into Seoul?

Seoul Gimpo Intl Airport has an average price of $210 per person and is typically the cheapest airport to fly into when visiting Seoul. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

Are there flights to Gangnam-gu?

Yes, flights to Gangnam-gu are served by Seoul’s Incheon Intl airport which is 33.0 mi away.

What’s the closest airport to Myeongdong Shopping Street?

Incheon Intl in Seoul is the closest airport to Myeongdong Shopping Street (distance: 30.4 mi).

When did momondo last update prices for flights to Seoul?

Prices for flights to Seoul refresh daily.

How many operators does momondo search for flights to Seoul?

How old do you have to be to fly to Seoul?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Seoul.

What documentation or ID do you need to fly to Seoul?

The necessary travel and health documents for your Seoul trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal to Seoul?

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

Can I find flights to Seoul with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for flights to Seoul to just show those with flexible booking policies.

How can momondo help me find flights to Seoul?

Once you have performed a search for flights to Seoul, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight to Seoul right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seoul, momondo offers a useful price alert feature which will track prices for flights to Seoul and alert you when they change.

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1 adult
Sun 8/17
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