Cheap flights from Chicago to Seoul from $712 MDW, ORD, RFD → GMP, ICN
Chicago Midway International Airport (MDW), O'Hare International Airport (ORD), Chicago Rockford International Airport (RFD) → Gimpo International Airport (GMP), Incheon International Airport (ICN)
The cheapest return found recently is $1,214 with American Airlines, 8 Apr 2027 – 25 Apr 2027, found 2 days ago. The cheapest one-way found recently is $712 with Air Canada, 1 Jun 2027, found 2 days ago.
- Cheapest one-way found recently
- $712, found 2 days ago
- Cheapest return found recently
- $1,214, 8 Apr 2027 to 25 Apr 2027
- Usual return price
- $1,075 to $1,355
- Cheapest month to fly
- December 2026, return fares from $971 found in the last 7 days
- Airlines with nonstop flights
- Korean Air
Return
The cheapest return fare on each of 8 departure dates is usually $1,075 to $1,355.
Cheapest return found recently
$1,214
8 Apr 2027 – 25 Apr 2027 · American Airlines
O'Hare International Airport (ORD) → Incheon International Airport (ICN)
Leaves 6:05 a.m. · Return leaves 5:50 p.m. · 39 h 34 min of travel, both ways together
out 1 stop, back 1 stop · via Dallas/Fort Worth International Airport (DFW)
found 2 days ago
Cheapest nonstop return
$1,905
20 Feb 2027 – 27 Feb 2027 · Korean Air
O'Hare International Airport (ORD) → Incheon International Airport (ICN)
Leaves 11:10 a.m. · Return leaves 11:30 p.m. · 27 h 55 min of travel, both ways together
out nonstop, back nonstop
found 7 days ago
Found recently, and the cheapest we hold
$1,214 8 Apr 2027 – 25 Apr 2027found 2 days agoSee prices for these dates
$971 1 Dec – 9 Decfound 4 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $855 to $1,228.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 8 departure dates from 21 Nov to 1 Jul 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 17-night return fares leaving within 3 days of 8 Apr 2027 to compare.
Every date we hold
55 fares on 8 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 21 Nov – 27 Nov | $1,440 | American Airlines | O'Hare International Airport (ORD) → Incheon International Airport (ICN) | out 2 stops, back 2 stops | found 7 days ago | See prices for these dates |
| 1 Dec – 9 Dec | $971 | Frontier Airlines | O'Hare International Airport (ORD) → Incheon International Airport (ICN) | out 2 stops, back 2 stops | found 4 days ago | See prices for these dates |
| 15 Dec – 29 Dec | $1,792 | Icelandair | O'Hare International Airport (ORD) → Incheon International Airport (ICN) | out 3 stops, back 2 stops | found 7 days ago | See prices for these dates |
| 14 Jan 2027 – 28 Jan 2027 | $1,116 | Turkish Airlines | O'Hare International Airport (ORD) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 20 Feb 2027 – 27 Feb 2027 | $1,075 | American Airlines | O'Hare International Airport (ORD) → Incheon International Airport (ICN) | out 2 stops, back 2 stops | found 7 days ago | See prices for these dates |
| 2 Mar 2027 – 9 Mar 2027 | $1,075 | American Airlines | O'Hare International Airport (ORD) → Incheon International Airport (ICN) | out 2 stops, back 2 stops | found 7 days ago | See prices for these dates |
| 8 Apr 2027 – 25 Apr 2027 | $1,214 | American Airlines | O'Hare International Airport (ORD) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 1 Jul 2027 – 8 Jul 2027 | $1,327 | Cathay Pacific | O'Hare International Airport (ORD) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $971.
Airlines on the cheapest dates: American Airlines, Frontier Airlines, Icelandair, Turkish Airlines, Cathay Pacific.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$712
1 Jun 2027 · Air Canada
O'Hare International Airport (ORD) → Incheon International Airport (ICN)
Leaves 3:40 p.m. · 23 h 50 min trip
1 stop
found 2 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$712 1 Jun 2027found 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 37 days, 27 Sept to 11 Nov, the cheapest one-way we saw each day was $417 to $1,188.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 1 Jun 2027 to compare.
Every date we hold
3 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Jun 2027 | $712 | Air Canada | O'Hare International Airport (ORD) → Incheon International Airport (ICN) | 1 stop | found 2 days ago | Open this trip |
Airlines on the cheapest dates: Air Canada.
Premium cabin fares from Chicago to Seoul
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 8 Apr 2027 – 25 Apr 2027 in another cabin: Premium economy · Business · First
Today's prices for 1 Jun 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Chicago to Seoul?
Return
The cheapest fares were 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $855 | $855 | Cheapest seen | 9 |
| 14–29 days | $1,136 | $930 | +33% | 25 |
| 30–59 days | $1,563 | $1,108 | +83% | 32 |
| 60–89 days | $2,378 | $1,071 | +178% | 15 |
| 90–179 days | $1,075 | $879 | +26% | 40 |
| 180+ days | $1,072 | $1,045 | +25% | 26 |
One-way
Not enough history yet: in 37 days of one-way prices, 27 Sept to 11 Nov, fewer than 3 booking ranges had prices on 7 days or more.
Live price for these dates
The cheapest return found recently is for 8 Apr 2027 – 25 Apr 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Chicago to Seoul?
The cheapest return found recently is $1,214 with American Airlines, 8 Apr 2027 to 25 Apr 2027, found 2 days ago. The cheapest return we hold, of any age, is $971 with Frontier Airlines, 1 Dec to 9 Dec, found 4 days ago. The cheapest return fare on each of 8 departure dates is usually $1,075 to $1,355.
How much is a one-way flight from Chicago to Seoul?
The cheapest one-way found recently is $712 with Air Canada, 1 Jun 2027, found 2 days ago.
What is the cheapest month to fly from Chicago to Seoul?
December 2026 is the cheapest month for a return, from $971, 1 Dec to 9 Dec, found 4 days ago.
How far ahead should I book a flight from Chicago to Seoul?
In 49 days of prices between 24 Sept and 11 Nov, return fares were cheapest 0 to 6 days before departure.
Is there a direct flight from Chicago to Seoul?
Yes, the cheapest nonstop return found recently is $1,905 with Korean Air, 20 Feb 2027 to 27 Feb 2027, found 7 days ago.
How long is the flight from Chicago to Seoul?
The cheapest one-way found recently, with Air Canada on 1 Jun 2027, takes 23 h 50 min with 1 stop.
Which airlines have the cheapest flights from Chicago to Seoul?
Between 21 Nov and 1 Jul 2027, American Airlines has the cheapest return on 4 of the 8 departure dates we hold, Frontier Airlines on 1 and Icelandair on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work