ORD → ICN

Find and Compare the Cheapest Ways to Fly from Chicago to Seoul

Compare one-way, round-trip and flight + hotel packages from Chicago to Seoul, a nonstop flight of about 13h 40m, with fares from around 770.

Chicago to Seoul flight facts

Chicago to Seoul is an international route covering about 6,533 miles, arriving at Incheon International Airport (ICN) in South Korea. Peak travel season in Seoul runs June–August (mild, long sunny days), while November–March is usually the quietest and best-value time to visit. The cheapest fares we've tracked on this route include at least one stop.

Key facts for flights from Chicago to Seoul
Departing fromO'Hare International Airport (ORD)
Arriving atIncheon International Airport (ICN)
Distance6,533 miles (10,520 km)
Nonstop flight timeAbout 13h 40m
Nonstop airlines seenNone in recent fares, expect 1 stop
Round-trip fares from$770 (estimate)
Cheapest monthsJanuary, September, February
Peak season in SeoulJune–August
Cheapest hotel months in SeoulNovember–March
Best time to book2 to 6 months ahead
Route info updatedOctober 16, 2026

When to visit Seoul

  • Peak season

    June–August

    Mild, long sunny days

  • Shoulder season

    April–May & September–October

    Cool and crisp, fewer crowds

  • Off-peak season

    November–March

    Cold, damp and grey

Estimated round-trip fares by month, Chicago to Seoul

Estimated lowest round-trip fare per month
MonthFares from
January$770
February$785
March$805
April$830
May$840
June$1070
July$1010
August$980
September$775
October$815
November$880
December$995

Flying from Chicago to Seoul

Airlines Flying this Route

The cheapest fares we've tracked on this route include at least one stop. Ducoffs.com compares full-service and low-cost airlines flying between Chicago and Seoul in a single search, including nonstop and one-stop options, so you can weigh price against total travel time.

Best Time to Book Flights from Chicago to Seoul

Fares on this route tend to be lowest in January, September, and February. For the best selection, book about 2 to 6 months before departure and stay flexible by a day or two.

Average Travel Duration

Chicago and Seoul are about 6,533 miles apart. A nonstop flight takes roughly 13h 40m; connecting itineraries usually add 2 to 5 hours.

Chicago to Seoul flight questions

How can I find the absolute cheapest flight from Chicago to Seoul?

The best way to secure budget rates is by comparing multiple airlines simultaneously and checking flexible dates. Ducoffs.com scans available partner networks to bring you real-time pricing options.

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

Based on typical seasonal demand, January, September, and February tend to offer the lowest fares on this route, with estimated round-trip prices starting around $770. Live prices change daily, so run a search for your exact dates.

How long is the flight from Chicago to Seoul?

Chicago and Seoul are about 6,533 miles apart. A nonstop flight takes roughly 13h 40m, while connecting itineraries usually add 2 to 5 hours depending on the layover.

Which airlines fly nonstop from Chicago to Seoul?

The cheapest fares we've tracked recently on this route include at least one stop. Your live search shows any nonstop options available for your dates.

When are hotels cheapest in Seoul?

Hotel rates in Seoul are usually lowest in November–March, when demand is quieter, and highest during peak season (June–August). Booking your flight and hotel together can save up to 30%.

Which airport do I fly into for Seoul?

This route arrives at Incheon International Airport (ICN). Your search results also show nearby airports when they offer a cheaper or faster option.

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

For this route, booking about 2 to 6 months before departure usually gives the best balance of price and seat selection. Mid-week departures are often cheaper than weekend flights.

Is it cheaper to bundle flights and hotels together?

Yes. Bundling your travel components can save you up to 30% compared to booking flights and hotels separately, as airlines and properties offer exclusive package discounts.