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Flights to Ulsan

$1,627 Cheap flights to Ulsan

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight to Ulsan departing on 4/9. 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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0 bags

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Find the cheapest flights from the United States to Ulsan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Korean Air Logo
12:40 pm - 8:20 amSFO-USN
27h 40m1 stop
Korean Air Logo
8:15 pm - 10:40 amUSN-SFO
30h 25m1 stop
$1,627Korean Air
Find Deal
Thu, Apr 9 - Mon, Apr 27
Korean Air Logo
12:40 pm - 8:20 amSFO-USN
27h 40m1 stop
Korean Air Logo
8:15 pm - 1:57 pmUSN-SFO
57h 42m2 stops
$1,628Korean Air
Find Deal
Thu, Apr 9 - Tue, Apr 28
Korean Air Logo
7:00 am - 8:20 amSFO-USN
33h 20m2 stops
Korean Air Logo
8:15 pm - 10:40 amUSN-SFO
30h 25m1 stop
$1,632Korean Air
Find Deal
Mon, Mar 30 - Tue, Apr 21
Korean Air Logo
4:03 pm - 7:35 pmSFO-USN
35h 32m2 stops
Korean Air Logo
8:15 pm - 1:57 pmUSN-SFO
57h 42m2 stops
$1,633Korean Air
Find Deal
Thu, Apr 9 - Wed, Apr 29
Korean Air Logo
7:00 am - 8:20 amSFO-USN
33h 20m2 stops
Korean Air Logo
8:15 pm - 8:10 pmUSN-SFO
39h 55m2 stops
$1,643Korean Air
Find Deal
Mon, Mar 30 - Mon, Apr 20
Korean Air Logo
1:05 pm - 8:20 amSFO-USN
51h 15m2 stops
Korean Air Logo
8:15 pm - 10:40 amUSN-SFO
30h 25m1 stop
$1,645Korean Air
Find Deal
Sun, Apr 12 - Wed, Apr 29
Korean Air Logo
4:03 pm - 8:20 amSFO-USN
48h 17m2 stops
Korean Air Logo
8:15 pm - 1:57 pmUSN-SFO
57h 42m2 stops
$1,646Korean Air
Find Deal
Sun, Apr 12 - Tue, Apr 28
Korean Air Logo
1:05 pm - 8:20 amSFO-USN
51h 15m2 stops
Korean Air Logo
8:15 pm - 8:10 pmUSN-SFO
39h 55m2 stops
$1,650Korean Air
Find Deal
Sun, Apr 5 - Sun, Apr 19
Korean Air Logo
12:40 pm - 8:20 amSFO-USN
27h 40m1 stop
Korean Air Logo
9:00 am - 10:40 amUSN-SFO
17h 40m1 stop
$1,677Korean Air
Find Deal
Fri, Apr 10 - Mon, Apr 27
Korean Air Logo
12:40 pm - 8:20 amSFO-USN
27h 40m1 stop
Korean Air Logo
9:00 am - 1:57 pmUSN-SFO
44h 57m2 stops
$1,678Korean Air
Find Deal
Fri, Apr 10 - Wed, Apr 29

momondo Fare Finder

 
Locate flights to Ulsan 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 December 2, 2025.
Use the filters below to find and compare flights to Ulsan that are best for you.

Fly from

Route

Depart

Return

Price

San FranciscoUlsan

SFO - USN

SFOUSN

San Francisco

Thu 4/9

12:40 pm-8:20 am

1 stop27h 40m

Ulsan

Mon 4/27

8:15 pm-10:40 am

1 stop30h 25m

$1,627

San FranciscoUlsan

SFO - USN

SFOUSN

San Francisco

Thu 4/9

12:40 pm-8:20 am

1 stop27h 40m

Ulsan

Tue 4/28

8:15 pm-1:57 pm

2 stops57h 42m

$1,628

San FranciscoUlsan

SFO - USN

SFOUSN

San Francisco

Mon 3/30

7:00 am-8:20 am

2 stops33h 20m

Ulsan

Tue 4/21

8:15 pm-10:40 am

1 stop30h 25m

$1,632

San FranciscoUlsan

SFO - USN

SFOUSN

San Francisco

Thu 4/9

4:03 pm-7:35 pm

2 stops35h 32m

Ulsan

Wed 4/29

8:15 pm-1:57 pm

2 stops57h 42m

$1,633

San FranciscoUlsan

SFO - USN

SFOUSN

San Francisco

Mon 3/30

7:00 am-8:20 am

2 stops33h 20m

Ulsan

Mon 4/20

8:15 pm-8:10 pm

2 stops39h 55m

$1,643

San FranciscoUlsan

SFO - USN

SFOUSN

San Francisco

Sun 4/12

1:05 pm-8:20 am

2 stops51h 15m

Ulsan

Wed 4/29

8:15 pm-10:40 am

1 stop30h 25m

$1,645

San FranciscoUlsan

SFO - USN

SFOUSN

San Francisco

Sun 4/12

4:03 pm-8:20 am

2 stops48h 17m

Ulsan

Tue 4/28

8:15 pm-1:57 pm

2 stops57h 42m

$1,646

San FranciscoUlsan

SFO - USN

SFOUSN

San Francisco

Sun 4/5

1:05 pm-8:20 am

2 stops51h 15m

Ulsan

Sun 4/19

8:15 pm-8:10 pm

2 stops39h 55m

$1,650

San FranciscoUlsan

SFO - USN

SFOUSN

San Francisco

Fri 4/10

12:40 pm-8:20 am

1 stop27h 40m

Ulsan

Mon 4/27

9:00 am-10:40 am

1 stop17h 40m

$1,677

San FranciscoUlsan

SFO - USN

SFOUSN

San Francisco

Fri 4/10

12:40 pm-8:20 am

1 stop27h 40m

Ulsan

Wed 4/29

9:00 am-1:57 pm

2 stops44h 57m

$1,678

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Ulsan from

Ulsan flights insights and trends

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

On average, the least expensive day to fly to Ulsan from United States is on a Saturday. momondo users have found tickets for Saturday departures for as low as $276. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Ulsan on Monday is $436.

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

Flying to Ulsan from United States in the morning is the least expensive time of day to depart. momondo users have found prices as low as $212 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Ulsan is in the afternoon when prices are around $434.

Cheapest flights to Ulsan

Find the cheapest flights to Ulsan from your nearest city or airport

Cheap Ulsan flight deals and tips

Summary info about Ulsan flight prices, duration and airlines

Best Round-Trip Price

$1,627

Fastest flight time

27h 40m
The best round-trip flight price to Ulsan from United States in the last 72 hours is $1,627 (San Francisco to Ulsan).
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The fastest flight to Ulsan from United States takes 27h 40m (San Francisco to Ulsan).
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Frequently asked questions about flying to Ulsan

Is there an alternative airport near Ulsan?

Finding an alternative and possibly cheaper destination airport near Ulsan is possible. If you are planning a flight to Ulsan, consider booking flights to Ulsan Airport (4 mi from Ulsan city center), Pohang Airport (32 mi from Ulsan city center), Daegu Airport (44 mi from Ulsan city center) or Jinju Sacheon Airport (77 mi from Ulsan city center).

Is there a cheaper alternative to flying into Ulsan?

Prices vary based on where travelers are departing from, but on average, the cheapest airport to fly to in Ulsan is Jinju Sacheon Airport where the average price is $68. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

What is the absolute cheapest flight to Ulsan?

In the past two weeks, users have booked deals to Ulsan for $31/person, which is 74% cheaper than the average flight to Ulsan. To find the cheapest price to Ulsan from your area, use momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Ulsan Airport?

Prices for flights to Ulsan Airport are refreshed on a daily basis.

How old do you have to be to fly to Ulsan Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Ulsan Airport.

What documentation or ID do you need to fly to Ulsan Airport?

The necessary travel and health documents for your Ulsan Airport 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 Ulsan?

It is quick and easy to find flights to Ulsan on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ulsan that suits you.

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

Yes. All flights to Ulsan on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights to Ulsan?

momondo helps you find the best flight to Ulsan by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Ulsan. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Popular flights to Ulsan

Popular routes according to searches in the past day on momondo
San Francisco to Ulsan Flightsfrom $1,172
Washington, D.C. to Ulsan Flightsfrom $2,570