How long is the flight from Chicago to Seoul?

Non-stop flights on ORD → ICN are typically around 14 hours. Connecting itineraries add 3–8 hours depending on the hub and layover.

Which airlines fly from Chicago to Seoul?

The main carriers on this route are Korean Air, Asiana, United. Codeshare and one-stop options add several more — the filter panel above shows every airline in the current fare set.

When is the cheapest time to fly from Chicago to Seoul?

Historically the lowest fares land in January, February, November. Summer (mid-June through mid-August) and the Christmas / New Year window are always peak. Mid-week departures (Tuesday–Thursday) typically beat weekend prices by 10–20%.

How far ahead should I book Chicago to Seoul?

Six to ten weeks ahead is the sweet spot for this route. Inside three weeks, fares tend to spike as airlines sell to last-minute business travellers. Award availability often opens 10–11 months out if you're booking on miles.

Can I book directly on destination.com?

The Book button on each fare opens the airline or OTA (Trip.com, Kiwi, Expedia, Booking, Priceline, etc.) that's actually selling that ticket. You complete payment there at the same price you saw here — we never add a markup.

ORD → ICN

Chicago to Seoul flights.

Live cached fares on Chicago (ORD) → Seoul (ICN), refreshed every 30 minutes. Non-stop and connecting itineraries side by side — compare airlines, times and stops, then book in one click.

Flying time
~14h non-stop
Airlines
Korean Air, Asiana, United
Cheapest months
January, February, November

Flex dates · cheapest nearby

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Read our best-time-to-book guide for ORD → ICN →Target price, booking window, weekday pattern.

See 30-day price history for ORD → ICN →Median fare, lows, and best-day patterns.

No cached fares for exactly 2026-12-06 → 2026-12-13. Showing recent fares on ORD → ICN — pick a different date in the calendar above or run a live search.

Chicago → Seoul · 3 fares12-month low · $521

Cached from Travelpayouts · filter & sort below

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Try a nearby airport

Thin routes often have more options from a neighbouring airport.

Chicago (MDW) → Seoul (ICN)

nearby origin

Chicago (ORD) → Seoul (GMP)

nearby destination

About Chicago → Seoul

Star (UA) + SkyTeam (KE) + separate OZ options. Mid-week Q1 departures regularly dip below $900 round-trip in economy.

Typical non-stop flying time is around 14 hours. Major carriers on this route include Korean Air, Asiana, United. Fares are usually cheapest in January, February, November — book 6–10 weeks ahead and avoid school-holiday peaks (late June–August, Christmas–New Year) for the best pricing.

Month-by-month price guide: Chicago to Seoul

Live cheapest round-trip fare cached on ORD → ICN for each of the next 12 months. Tap any month and run a live search to confirm.

Oct
No data
Nov
No data
Dec
Peak
from $1671
Jan
No data
Feb
No data
Mar
No data
Apr
Low
from $879
May
No data
Jun
No data
Jul
No data
Aug
No data
Sep
No data

Cheapest next 12 months: April from $879 round-trip. Run a live search →

Booking window tip

Long-haul fares are most predictable when booked 10-16 weeks ahead. Inside six weeks expect sharp increases, especially in premium cabins. If you're paying with miles, search 330+ days ahead when award inventory first loads.

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Where to stay

Once you’ve booked the flight, pick a Seoul neighbourhood.

See where to stay in Seoul →

Questions, answered

How long is the flight from Chicago to Seoul?
Non-stop flights on ORD → ICN are typically around 14 hours. Connecting itineraries add 3–8 hours depending on the hub and layover.
Which airlines fly from Chicago to Seoul?
The main carriers on this route are Korean Air, Asiana, United. Codeshare and one-stop options add several more — the filter panel above shows every airline in the current fare set.
When is the cheapest time to fly from Chicago to Seoul?
Historically the lowest fares land in January, February, November. Summer (mid-June through mid-August) and the Christmas / New Year window are always peak. Mid-week departures (Tuesday–Thursday) typically beat weekend prices by 10–20%.
How far ahead should I book Chicago to Seoul?
Six to ten weeks ahead is the sweet spot for this route. Inside three weeks, fares tend to spike as airlines sell to last-minute business travellers. Award availability often opens 10–11 months out if you're booking on miles.
Can I book directly on destination.com?
The Book button on each fare opens the airline or OTA (Trip.com, Kiwi, Expedia, Booking, Priceline, etc.) that's actually selling that ticket. You complete payment there at the same price you saw here — we never add a markup.

Other ways to reach Seoul

If your plans are flexible on the origin, these alternate departure airports also serve Seoul on the routes we track.

Other popular routes

Keep planning

Complete your Seoul trip

Trip plannerSeoul one-stop planTours, transfers, packages, and events for Seoul in one place.StaysWhere to stay in SeoulNeighborhood-by-neighborhood picks with live nightly rates.ExperiencesThings to do in SeoulCurated sights, food, nightlife, and tours across every district.Getting thereCheap flights to SeoulUS gateway fares with the months each route bottoms out.NeighborhoodsSeoul by districtLongform breakdowns of where locals eat, drink, and sleep.When to goBest time to visit South KoreaMonth-by-month verdicts on weather, crowds, and prices.