⚡ Fare recorded April 25, 2026 · Prices change daily

Portland to Seoul flights

Portland (PDX) to Seoul (SEL): 5,275 miles (8,490 km) great-circle, about 11h 05m nonstop by our estimate. Cheapest fare observed: $1288 round-trip on Alaska Airlines, with 1 stop, departing July 9, 2026.

ASAlaska AirlinesAS1389
Depart
PDX
Portland, USA
21:27
2026-07-09
✈
Arrive
SEL
Seoul, South Korea
Returns 12:40
2026-08-13
Stops
1 stop
Distance
5,275 mi
Est. nonstop time
11h 05m
Trip type
Round-trip
$1288
Round-trip · per person
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About this flight

When did the cheapest Portland to Seoul fare fly?

$1288 round-trip, Alaska Airlines AS1389, departing 2026-07-09 at 21:27, returning 2026-08-13. The recorded itinerary left on a Thursday, returning on a Thursday 35 nights later; the fare was observed 75 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.

Route facts

How far is Portland from Seoul?

  • Distance: 5,275 miles (8,490 km) great-circle, heading northwest (measured to Incheon International Airport, ICN).
  • Estimated nonstop flight time: about 11h 05m.
  • Departure airport: Portland International Airport (PDX), Portland, United States, UTC-7 on July 9, 2026.
  • Arrival: Seoul (SEL, all airports), South Korea, UTC+9 on July 9, 2026.
  • Time difference: Seoul is 16 hours ahead of Portland on the recorded date.
  • Route type: international, United States to South Korea.
  • Recorded itinerary: Alaska Airlines AS1389, 1 stop, round-trip, 35 days between departure and return.
Fare comparison

How does the Portland to Seoul fare compare with other routes from PDX?

At $1288, it ranked 27th of the 30 round-trip fares we recorded from PDX (median $378). That is 24.4 cents per great-circle mile (round-trip price over one-way distance), above the PDX median of 21.2 cents across 30 round-trip routes.

Routes from PDX of similar length: Moscow (5,324 mi) at $1552 and Almaty (6,174 mi) at $2047.

Alaska Airlines had the cheapest fare on 13 of 30 PDX routes. It is the 7th longest of the 30 routes we track from PDX.

Other ways in

What did other cities pay to fly to Seoul?

Of 24 departure airports with a fare to Seoul, Portland (PDX) ranked 24th at $1288. Lowest: $142 from Osaka (KIX); highest: $1288 from Portland (PDX); 10 nonstop. Cheapest-fare airlines (routes): Jetstar (2), Peach Aviation (2), airline 9G (1), airline WE (1), Alaska Airlines (1) and Asiana (1), plus 16 more.

Entry requirements

Do you need a visa to fly to South Korea?

That depends on your passport and trip, so check the official source for South Korea: Republic of Korea: K-ETA. Connecting elsewhere? Check that country's transit rules too.

Sources

Where do these numbers come from?

Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, Asia/Seoul; flight time is our estimate.

FAQ

Portland to Seoul flight questions

How far is Portland from Seoul by plane?

+
Portland is about 5,275 miles (8,490 km) from Seoul on a great-circle line from Portland International Airport (PDX) to Incheon International Airport (ICN), heading northwest. SEL is the city code that covers every commercial airport in Seoul; distances on this page are measured to Incheon International Airport (ICN). It is the 7th longest of the 30 routes we track from PDX. The recorded itinerary had 1 stop, so the distance flown was longer.

How long is the flight from Portland to Seoul?

+
About 11h 05m nonstop by our estimate for 5,275 miles (500 mph cruise plus 30 minutes, not a timetable). The recorded Alaska Airlines fare was with 1 stop. 24 airports in our feed had a fare to Seoul; this one ranked 24th, and 10 of the 24 were nonstop.

What is the time difference between Portland and Seoul?

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On July 9, 2026, Portland was on UTC-7 (America/Los_Angeles) and Seoul on UTC+9 (Asia/Seoul), so Seoul was 16 hours ahead of Portland: noon in Portland was 04:00 the next day in Seoul. Daylight saving changes it: in mid-January 2026 the gap is Seoul 17 hours ahead, in mid-July Seoul 16 hours ahead.

How much is a flight from Portland to Seoul?

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As observed on April 25, 2026: $1288 per person round-trip on Alaska Airlines flight AS1389, departing July 9, 2026, returning August 13, 2026, with 1 stop. At $1288, it ranked 27th of the 30 round-trip fares we recorded from PDX (median $378). That is 24.4 cents per great-circle mile (round-trip price over one-way distance), above the PDX median of 21.2 cents across 30 round-trip routes. Prices change daily, so check the live fare.

Is there a nonstop flight from Portland to Seoul?

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The cheapest recorded fare had 1 stop; our feed keeps only the cheapest fare per route, so a pricier nonstop may exist. Into Seoul, 10 of the 24 recorded fares were nonstop. From PDX, 6 of 30 were. Routes from PDX of similar length: Moscow (5,324 mi) at $1552 and Almaty (6,174 mi) at $2047.

Which airports serve flights from Portland to Seoul?

+
It departs Portland International Airport (PDX) in Portland, United States, and arrives at Seoul (SEL) in Seoul, South Korea. SEL is the city code that covers every commercial airport in Seoul; distances on this page are measured to Incheon International Airport (ICN). An international flight, United States to South Korea.

Where else near Seoul can you fly from Portland?

Hong Kong (HKG) $1521Bangkok (BKK) $1130Almaty (ALA) $2047Anchorage (ANC) $538Moscow (MOW) $1552Honolulu (HNL) $436All flights from Portland →

Other cities with flights to Seoul

From Osaka (KIX) $142From Nagoya (NGO) $165From Tokyo (NRT) $167From Taipei (TPE) $200From Shanghai (PVG) $218From Ho Chi Minh City (SGN) $218

Ready to fly?

Book Alaska Airlines PDX → SEL · $1288 →