If it feels like everyone around you started coughing the week school went back, you are not imagining it. Korea's flu season normally gets going in late October. This year it arrived before Chuseok.

Last updated: September 21, 2026 (KST)

Here is the bottom line. Most adult foreigners pay for a flu shot in Korea, and the going rate at a neighborhood clinic is 25,000 to 35,000 KRW (about $18 to $26). National health insurance does not cover it. The shot is free only for children aged 6 months to 14 years, pregnant women, and people 65 and over, and registered foreigners in those groups have long been included. Free shots for children and pregnant women started on Monday, September 21. Vaccine supply is tighter than usual this year, so call your clinic before you walk over.

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Why 2026 Is Not a Normal Flu Year

The Korea Disease Control and Prevention Agency (KDCA) issued its influenza epidemic advisory (yuhaeng juuibo, 유행주의보) on September 11, 2026. Last season the same advisory came on October 17. In 2024 it came on December 20.

The numbers behind it moved fast. Doctors reported 9.2 suspected flu patients per 1,000 outpatients in the week of August 16 to 22, then 13.3, then 25.3, then 31.0 in the week of September 6 to 12. The threshold for an advisory this season is 12.9. That latest figure is 4.6 times the same week last year. Elementary school children are hit hardest, at 79.6 per 1,000.

KDCA responded on September 16 by moving the free vaccination schedule forward. If you saw dates in an article from late August, they are out of date. The current dates are in the next section.

Supply is the second problem. The World Health Organization changed all three recommended strains this year, production yields dropped, and Korea has about 4 million fewer doses in total than last season. The 12.33 million doses for the free program are secured. The paid market is where it gets thin. KDCA itself says private supply is "not as comfortable as in previous years," and some clinic distributors are quoting deliveries after September 28. KDCA expects more than 90% of this year's vaccine to be shipped by early October and the situation to settle after the first week of October. Industry sources describe it as an early-season bottleneck, not a crisis.

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Who Gets the Flu Shot Free in 2026-2027

The national program runs from September 21, 2026 to April 30, 2027. You can use any of roughly 23,000 designated clinics nationwide, regardless of where your address is registered.

Start dates after the September 16 revision:

• Children aged 6 months to 14 years (born January 1, 2012 to August 31, 2026), from September 21. The age limit went up from 13 to 14 this year.
• Pregnant women, from September 21. Bring your maternity handbook (sanmo sucheop, 산모수첩) or a pregnancy certificate.
• Seniors 75 and over, from October 6
• Seniors 70 to 74, from October 12
• Seniors 65 to 69 (born on or before December 31, 1961), from October 15
• Immunocompromised and other high-risk people, from October 6 regardless of age band, after talking to a doctor

Children under 9 who have never had a flu shot before need two doses, one month apart. The program vaccine is trivalent (3-ga, 3가), the same type Korea switched to last season.

Does the Free Program Cover Foreigners?

Yes, if you are in one of the groups above and you are registered. KDCA's program guideline includes foreigners who completed alien registration under the Immigration Act, overseas Koreans with a domestic residence report (F-4), and people issued a management number by a public health center (bogeonso, 보건소). The guideline does not list health insurance enrollment as a condition. For this season, the Korea JoongAng Daily reported that children with foreign nationality qualify as long as they have a registration number.

One caveat. KDCA's 2026 announcements do not restate the foreigner rule, so the wording above comes from the agency's earlier guideline and its 2024 confirmation to the Korea Biomedical Review. It has been the standing rule for years. If a clinic front desk hesitates, show your Alien Registration Card (ARC), and if that fails, call 1339.

💡 TIP: Do not assume your district public health center gives flu shots. Gwanak-gu's center, for one, states that it does not administer them at all and sends everyone to designated clinics. Start with a clinic.

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What Everyone Else Pays

If you are a healthy adult under 65, the flu shot is a non-covered service (bigeubyeo, 비급여). The National Health Insurance Service pays nothing toward it, and every clinic sets its own price.

2026 average prices, from the Health Insurance Review and Assessment Service (HIRA) disclosure:

• Local clinics (uiwon, 의원), 32,671 KRW (about $24)
• Hospitals, 29,976 KRW (about $22)
• General hospitals, 33,723 KRW (about $25)
• Tertiary university hospitals, 32,388 KRW (about $24)
• Seoul neighborhood clinics, typically 25,000 to 35,000 KRW (about $18 to $26)
• Full listed range, 10,000 KRW (about $7) at one clinic in Paju up to 42,510 KRW (about $31) at Seoul St. Mary's Hospital
• By region, Jeju is cheapest on average at 27,600 KRW (about $20), Gangwon the most expensive at 36,130 KRW (about $27)

These averages were reported before September's supply squeeze. Wholesale prices to clinics have since risen about 30%, so treat the figures as a floor, not a promise. No outlet has yet reported what that does to the price you pay at the desk.

A cheaper route last season was the Korea Association of Health Promotion (Hanguk Geongang Gwalli Hyeophoe, 한국건강관리협회), which charged 17,000 KRW (about $12.50) for a trivalent shot at its 16 regional centers. Its 2026 price is not published yet, so call your nearest center.

For readers 65 and over who want more than the free standard shot, Sanofi's high-dose vaccine Efluelda has been supplied nationwide since September 8. It is a paid option with four times the antigen of a standard dose. No 2026 price has been published. In earlier seasons, senior-specific vaccines ran about 50,000 KRW (about $37).

You can look up any hospital's price yourself on HIRA's non-covered fee site at hira.or.kr/npay. It is in Korean, so search for 인플루엔자.

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How to Get the Shot, Step by Step

① Find a clinic. For the free program, use KDCA's Vaccination Helper site at nip.kdca.go.kr and follow 예방접종관리, then 지정의료기관 찾기. The site is Korean only, and you search by city, district, and neighborhood. For a paid shot, almost any internal medicine (naegwa, 내과), pediatric, or ENT clinic gives them. Searching 독감 예방접종 in Naver Map or KakaoMap shows what is near you.

② Call before you go. This is KDCA's own advice this year, because stock differs from clinic to clinic. Ask: Dokgam yebang jeopjong doenayo? (독감 예방접종 되나요?, "Do you do flu shots?") and Eolmayeyo? (얼마예요?, "How much is it?").

③ Bring ID. Your ARC is what the clinic needs. Overseas Koreans bring the residence card (geoso-jeung, 거소증).

④ Fill in the screening form. Every clinic hands you a pre-vaccination questionnaire (yejinpyo, 예진표) asking about fever, allergies, and past reactions. You can complete it online in advance at nip.kdca.go.kr, but the site has no English version, so most foreigners do it on paper at the desk. Tell the doctor if you have ever had a severe allergic reaction to a flu shot or to eggs. A cell-culture vaccine exists for egg-allergy patients.

⑤ Stay 20 to 30 minutes. Clinics ask you to wait in the lobby after the injection to watch for a reaction. Plan for it and do not book a meeting straight after.

Words worth knowing at the desk:

• 독감 예방접종 (dokgam yebang jeopjong), flu shot
• 무료접종 / 유료접종 (muryo / yuryo jeopjong), free shot / paid shot
• 3가 백신 (sam-ga baeksin), trivalent vaccine
• 외국인등록증 (oegugin deungnokjeung), ARC
• 이상반응 (isang baneung), adverse reaction

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English-Speaking Options in Seoul

If you want the whole visit in English, the university hospital international clinics are the dependable choice. Severance Hospital's International Health Care Center in Sinchon lists child and adult immunizations among its services and always has interpreting in English, Japanese, Russian, and Chinese.

• Severance International Health Care Center, 02-2228-5800
• Samsung Medical Center International Healthcare Center, 02-3410-0200
• Asan Medical Center International Healthcare Center, 02-3010-5001
• Seoul National University Hospital International Healthcare Center, 02-2072-0505

None of them publishes a flu shot price, so ask for the total, including any consultation or registration fee, when you book. For most people a neighborhood clinic and the five Korean phrases above get the same vaccine for less.

For questions, KDCA's 1339 call center runs 24 hours a day. It has no English line of its own and connects you through a three-way interpreted call with the 1330 tourism hotline (8 languages) or the 1345 immigration contact center (20 languages).

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When to Go

Antibodies take about two weeks to form after the shot. With the virus already circulating, earlier is better.

• Free-program groups, go on or soon after your start date. That is KDCA's own advice this season.
• Everyone else, start calling clinics now. If yours is out of stock, the first or second week of October is when KDCA expects supply to even out. Waiting until November, the usual expat habit, is a worse bet this year.

COVID-19 and RSV Shots

The COVID-19 vaccine became a routine national vaccination this season, running from October 12, 2026 to June 30, 2027. It is free for people 65 and over (70 and over from October 12, ages 65 to 69 from October 15), for immunocompromised people aged 12 and up, and for residents of care facilities. Flu and COVID-19 shots can be given in the same visit, in different arms. If you are 75 or older and want both at once, that means waiting until October 12 instead of October 6.

RSV vaccination is not part of the national program. GSK's Arexvy is offered at private clinics for adults 60 and over as a single paid dose. The only price we found was 300,000 KRW (about $220) at one clinic in 2025, so call around.

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If You Catch It Anyway

See a doctor early, because antivirals work best at the start. A clinic visit is covered if you are enrolled in national health insurance (see our NHIS guide if you are not sure you are). Last season's costs looked like this:

• Tamiflu (oral oseltamivir), covered, under 10,000 KRW (about $7) out of pocket
• Rapid flu test, not covered, about 28,500 KRW (about $21) on average in Seoul
• Peramiflu IV injection, not covered, 70,000 to 150,000 KRW (about $51 to $110)

Clinics often suggest the IV plus a nutrient drip, which is how a flu visit turns into a 100,000 to 200,000 KRW bill. You can ask for the oral prescription instead. While the epidemic advisory is in force, high-risk patients (children, pregnant women, people 65 and over, and those with chronic conditions) get insurance coverage for antivirals on a doctor's judgment alone, without the paid test.

Seoul City's guidance if you are sick: wear a mask, see a doctor, and stay home until 24 hours after the fever is gone. For finding a late-night or English-speaking pharmacy, our pharmacy guide has the details.

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From October on, Koreans start signing off messages with gamgi josimhaseyo (감기 조심하세요), "be careful not to catch a cold." It is small talk, and it is also sincere. This year the kindest reply is a photo of the bandage on your arm.

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A warm room does more for your winter than any vitamin. If your current place is drafty or you are moving before the cold sets in, Homes in Korea lists furnished rooms and monthly rentals that foreigners can actually book.