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Airalo South Korea eSIM: which plan for how many days
Airalo sells South Korea as fixed-data plans (from $4) and unlimited plans (from $12), on the network it lists as SK. Here is what each costs today, which one fits your trip length, when Saily or your own carrier is the better deal, and the two Korea-specific things to sort out before you land at Incheon: maps and a phone number.
Ad / affiliate disclosure: I may earn a commission if you buy an eSIM through the Airalo, Saily or Yesim links on this page, at no extra cost to you. Using your carrier's plan costs me nothing to recommend. PracticalPivot is not affiliated with Airalo. Prepared with AI assistance; Airalo and Saily prices were read on their South Korea pages on October 16, 2026.
The 30-second answer
Best plan for most week-long Korea trips: Airalo 5GB for 7 days ($10). It covers Naver Map or KakaoMap, the subway, messages and some social media.
Heavy use (streaming, hotspot): Airalo unlimited, 7 days for $29.
Two weeks to a month: Airalo 10GB for 15 days ($18.50) or 10GB for 30 days ($19). Saily's 30-day plans cost about the same (10GB $18.99); its 3GB / 30-day plan ($8.99) is the cheapest way to cover a long, light-use stay.
Korea plus Japan or other Asian stops: Airalo lists Asia regional plans from $4; for Japan on its own, see Japan eSIM for 7 days.
Know this: these are data-only eSIMs with no Korean phone number, and Google Maps gives limited directions in Korea, so download Naver Map or KakaoMap before you fly.
Airalo South Korea fixed-data plans (checked October 16, 2026)
| Valid for | Data and price |
|---|---|
| 3 days | 1GB $4.00 · 3GB $8.00 |
| 7 days | 3GB $9.00 · 5GB $10.00 · 10GB $18.00 |
| 15 days | 5GB $10.50 · 10GB $18.50 · 20GB $29.00 |
| 30 days | 5GB $11.00 · 10GB $19.00 · 20GB $30.00 · 50GB $49.00 |
Airalo South Korea unlimited plans
| Plan | Price | Per day |
|---|---|---|
| Unlimited, 3 days | $12.00 | $4.00 |
| Unlimited, 5 days | $20.00 | $4.00 |
| Unlimited, 7 days | $29.00 | $4.14 |
| Unlimited, 10 days | $35.00 | $3.50 |
| Unlimited, 15 days | $49.00 | $3.27 |
| Unlimited, 30 days | $69.00 | $2.30 |
Airalo's South Korea page opens on the unlimited tab; the fixed-data plans are under "Fixed data". It lists the network as "SK". It did not state a speed cap for unlimited plans; unlimited eSIM plans often slow down after heavy daily use, so read the plan's fair-usage line in the app before you pay. Note the jump: a 5GB / 7-day plan is $10, but 7 days unlimited is $29, so only pay for unlimited if you will really stream or hotspot.
Which plan for your trip length
| Trip | Light use (maps, messages) | Heavy use (streaming, hotspot) |
|---|---|---|
| 3 days (Seoul long weekend or a stopover) | Airalo 3GB / 3 days, $8 (1GB, $4, for a layover) | Airalo unlimited 3 days, $12 |
| 7 days (Seoul + Busan) | Airalo 5GB / 7 days, $10 | Airalo unlimited 7 days, $29 |
| 10 days | Airalo 10GB / 15 days, $18.50 | Airalo unlimited 10 days, $35 |
| 15 days | Airalo 10GB / 15 days, $18.50 | Airalo 20GB / 15 days, $29, or unlimited $49 |
| 30 days | Airalo 10GB / 30 days, $19, or Saily 3GB / 30 days, $8.99 for very light use | Airalo 50GB / 30 days, $49, or unlimited $69 |
Saily's South Korea plans on October 16, 2026: 1GB / 7 days $3.99; 3GB $8.99, 5GB $10.99, 10GB $18.99, 20GB $29.99 (each 30 days); Saily also sells unlimited plans by the day count. Rough data use: maps and messaging run around 100-300MB a day; a day of Instagram and photo uploads can reach 1GB.
Two Korea-specific checks
| Issue | What it means | What to do |
|---|---|---|
| Maps | Google Maps shows places in Korea but its walking and driving directions are limited there; most visitors navigate with Korean apps | Install Naver Map or KakaoMap (both have English menus) and save your hotel before you fly |
| No Korean phone number | Airalo and Saily Korea eSIMs are data-only. Some Korean apps (taxi, delivery, some bookings) ask for a Korean number to verify | Book taxis through apps that accept foreign numbers, or buy a local SIM with a number at the airport if you need one; keep your US line on for texts and bank codes |
Common questions
Which Airalo South Korea plan is best for 7 days?
For most travelers, Airalo's 5GB / 7-day South Korea plan ($10 on October 16, 2026). For streaming or hotspot use, the 7-day unlimited plan ($29).
Does Airalo have fixed-data plans for South Korea?
Yes. Besides unlimited plans (from $12 for 3 days), Airalo sells South Korea plans from 1GB / 3 days ($4) up to 50GB / 30 days ($49). They are under the Fixed data tab on Airalo's South Korea page.
Is Saily cheaper than Airalo for South Korea?
About the same, on October 16, 2026: at 30 days Airalo charged $11 for 5GB, $19 for 10GB and $30 for 20GB, against Saily's $10.99, $18.99 and $29.99. Saily's 3GB / 30-day plan ($8.99) has no Airalo match, so it wins for a long trip with very light use; Airalo wins for short trips because it sells 3-, 7- and 15-day plans.
Does the Airalo Korea eSIM come with a phone number?
No. It is data only. You can still use WhatsApp, KakaoTalk and other internet calling, and keep your home line active for texts.
Is Airalo cheaper than AT&T or Verizon in South Korea?
Usually. AT&T's International Day Pass and Verizon's TravelPass both charge $12 a day (about $84 for a week), compared with $10 for Airalo's 5GB / 7-day plan. Many T-Mobile plans include basic data in South Korea.
Check your US carrier first (it may be free or cheaper)
| Carrier | South Korea option | Watch out for |
|---|---|---|
| T-Mobile | Many plans include data and texting in South Korea at no extra cost; higher plans include some high-speed GB | Basic plans are slow abroad. Check "International" in your plan details. |
| AT&T | International Day Pass: $12/day for one line, $6/day for each extra line, max 10 charged days per bill | 7 days = $84 for one line, far more than any eSIM above |
| Verizon | TravelPass: $12/day in most countries | Charges apply on every day you use the phone abroad unless you turn data roaming off |
| Free option | Wi-Fi in hotels, cafes and many subway stations | Fine for a short city stay if you download offline maps, but you lose navigation between hotspots |
How to set up an Airalo eSIM for South Korea
- Check your phone: it must support eSIM and be carrier-unlocked. On iPhone: Settings > General > About, look for "Carrier Lock: No SIM restrictions".
- Buy and install at home on Wi-Fi a day or two before you fly. Airalo says you can install as soon as you like; don't delete the eSIM after installing.
- Label it "Korea", keep your home line on for calls and texts if you want, and set Cellular Data to the Korea eSIM.
- Turn data roaming ON for the Korea eSIM and OFF for your home line so your carrier can't start a $12 day pass.
- When you land at Incheon or Gimpo, switch the Korea line on and give it a minute to find the network. If there's no data, toggle airplane mode once.
Before you fly: checklist
- Phone unlocked and eSIM-capable
- Plan length covers your last day (count arrival and departure days)
- eSIM installed on Wi-Fi at home, QR code or app login saved
- Home line: data roaming off (avoids day-pass charges)
- Naver Map or KakaoMap installed, hotel saved; KakaoTalk if you'll message Korean hosts
- Know whether any booking you need asks for a Korean phone number
What to do
Pick by trip length from the table above, then buy from the provider's South Korea page:
See Airalo South Korea plans →
Saily code PIVOT10 takes 10% off your first Saily purchase (all plans); it is applied automatically through the Saily link on this page.
See Yesim South Korea plans →
Affiliate links. Yesim's South Korea prices were not checked for this guide, so compare them on its page before buying.
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- Japan eSIM for 7 days (if Korea is part of a Japan trip)
- Airalo Thailand eSIM (if you add Bangkok or the islands)
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- Best eSIM for Europe
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