Flights Chicago → Seoul
As of November 2026, economy flights from Chicago to Seoul have a typical range USD 848–2685, median USD 1144. Full range across all 227 offers: USD 569–10048. We analyzed 227 offers from 26 airlines in a single price check.
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Chicago → Seoul
Based on 227 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Chicago → Seoul
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Cathay Pacific | — | — | — |
| Philippine Airlines | Included | Included | — |
| EVA Air | — | — | — |
| Turkish Airlines | Included | Included | — |
| Southwest | — | Included | — |
| American Airlines | — | USD 35 | — |
| Alaska Airlines | Included | USD 35 | — |
| United Airlines | — | USD 35 | — |
| American | — | USD 281 | — |
| Japan Airlines | — | — | — |
| Icelandair | — | USD 30 | — |
| Ethiopian Airlines | Included | Included | — |
| Korean Air | Included | Included | — |
| Delta | Included | USD 35 | — |
| Air Canada | — | USD 30 | — |
| ANA (All Nippon Airways) | Included | Included | — |
| Aeromexico | Included | — | — |
| Qatar Airways | Included | Included | — |
| Emirates | Included | Included | — |
| Etihad Airways | Included | Included | — |
| KLM | Included | USD 35 | — |
| Air France | Included | USD 35 | — |
| Lufthansa | Included | USD 35 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Chicago to Seoul cost?
Based on 227 offers · November 2026
Chicago to Seoul flights ranged from USD 569 to USD 10048 across 227 offers analyzed in November 2026. The chart below shows how prices distributed across all 227 offers.
These 227 offers (November 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 1051 and USD 1715
What hidden fees do Chicago to Seoul flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Chicago to Seoul routes. The breakdown below is based on 227 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| CX | 50 | 2% |
| PR | 15 | 2% |
| BR | 15 | 2% |
| TK | 10 | 1% |
| WN | 0 | 0% |
| AA | 45 | 5% |
| AS | 45 | 2% |
| UA | 35 | 2% |
| American | 281 | 32% |
| JL | 0 | 0% |
| FI | 40 | 4% |
| ET | 10 | 1% |
| KE | 15 | 0% |
| DL | 32 | 3% |
| AC | 42 | 2% |
| NH | 0 | 0% |
| AM | 0 | 0% |
| QR | 20 | 1% |
| EK | 20 | 1% |
| EY | 15 | 0% |
| KL | 47 | 2% |
| AF | 47 | 3% |
| LH | 45 | 2% |
American: base ~USD 835 + fees USD 281 = ~USD 1116 total. Korean Air: base ~USD 3550 + fees USD 15 = ~USD 3565 total.
American's USD 281 ancillary fees narrow the gap with Korean Air's lower-fee model — the USD 2715 base difference shrinks to USD 2449 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Chicago to Seoul?
26 airlines flew Chicago to Seoul in this dataset. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
Even on the cheapest airline (Philippine Airlines), fares ranged USD 581–682 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Philippine Airlines | 2 | 581–682 | 632 | 15 (2%) |
 Cathay Pacific | 7 | 654–5608 | 654 | 50 (8%) |
 Cathay Pacific | 2 | — | 654 | n/a |
 EVA Air | 6 | 712–938 | 720 | 15 (2%) |
 Turkish Airlines | 6 | 727–969 | 761 | 10 (1%) |
 Southwest Airlines | 3 | 768–1006 | 797 | 0 (0%) |
 Ethiopian Airlines | 1 | — | 955 | 10 (1%) |
 American Airlines | 7 | 789–1148 | 1002 | 45 (4%) |
 Icelandair | 2 | 925–1091 | 1008 | 40 (4%) |
 Korean Air | 1 | — | 1048 | n/a |
 United Airlines | 21 | 1051–2901 | 1051 | 35 (3%) |
 Delta | 16 | 1057–1126 | 1062 | n/a |
 Alaska Airlines | 7 | 807–4464 | 1077 | 45 (4%) |
 American | 5 | 918–1136 | 1116 | 281 (25%) |
 Delta Air Lines | 52 | 1051–1286 | 1126 | 32 (3%) |
 Japan Airlines | 14 | 943–1755 | 1279 | 0 (0%) |
 AM | 2 | 1320–1376 | 1348 | 0 (0%) |
 Air France | 5 | 1500–1665 | 1505 | 47 (3%) |
 Air Canada | 15 | 1395–1879 | 1572 | 42 (3%) |
 KLM | 6 | 1500–3538 | 1641 | 47 (3%) |
 Qatar Airways | 6 | 1447–1738 | 1688 | 20 (1%) |
 Emirates | 15 | 1726–2076 | 1984 | 20 (1%) |
 Lufthansa | 6 | 2653–3201 | 2674 | 45 (2%) |
 Korean Air | 14 | 1128–4454 | 3565 | 15 (0%) |
 ANA | 4 | 1199–6282 | 3741 | 0 (0%) |
 Etihad Airways | 2 | 2327–9190 | 5759 | 15 (0%) |
Where do the best Chicago → Seoul prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Chicago to Seoul flights
- Full-service carriers on Chicago–Seoul cost 2.0x more than budget airlines (USD 1585 vs USD 797 median; overall median USD 1144).
- American charges 28.1x more in ancillary fees than ET — USD 281 vs USD 10 avg per booking.
- The same route priced USD 419 apart depending on where it was booked — the lowest median was USD 1051. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Chicago to Seoul cost?
- Based on 227 offers analyzed, Chicago to Seoul flights range from USD 569 to USD 10048, with a median price of USD 1144. Search for your specific dates →
- What hidden fees should I expect on Chicago to Seoul flights?
- On average, ancillary fees (bags, seat selection) add USD 30 to the base fare on Chicago to Seoul flights. See itemized fees for your itinerary →
- Which airline is cheapest on Chicago to Seoul including all fees?
- Philippine Airlines has the lowest median fare on Chicago to Seoul at USD 632 (median across 2 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Chicago–Seoul flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 1051. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Chicago to Seoul routes?
- Chicago to Seoul has 26 airlines competing, creating a price range from USD 569 to USD 10048 across 227 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
26 airlines compete on this route — we check every one
Find flights for my datesNew route — be among the first to track this itinerary
Building with flight data? Power your app or agent with LetsFG
The same multi-source search behind this page — every airline and the major booking sites, deduplicated and ranked — is available to your app or AI agent. Natural-language or structured queries, live prices, zero price bias.
Try the free sandbox — no card →Free sandbox, instant fake results · email for a key · Bearer-token auth · MCP, Python & JS SDKs · letsfg.co/developers