9G
$136
HAN → ICN
Hà Nội → Seoul
Pingsme.com compares prices from 87 airlines on the Hanoi–Seoul route and highlights useful fare changes.
About Hanoi to Seoul flights
Pingsme.com monitors airlines operating the Hanoi (HAN) to Seoul (ICN) route. We check prices regularly and surface useful drops and fare signals. Prices shown are per person, one-way, in economy class.
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Hanoi to Seoul is a capital-to-capital route, and the two cities rhyme in interesting ways: both mix centuries-old palaces and old quarters with fast-moving modern life, and both take their food very seriously. A direct, convenient flight from Noi Bai to Incheon International Airport (ICN) puts you at the gateway to Korea — and into a travel scene Hanoians already know well through K-dramas, K-pop, and Korean food streets at home.
Seasonally, this route rewards planning. Autumn from September to November is Seoul's showcase — foliage, festivals, clear skies — and the busiest booking window. Early April brings cherry blossoms. Winter is cold but doubles as ski season and the cheapest time of year to fly. One box to tick first: Vietnamese citizens need a K-ETA electronic travel authorization, applied for online at least 72 hours before departure.
On the pricing side, Pingsme monitors the Hanoi – Seoul route across 87 airlines with daily updates, so you can watch fares move and book when the numbers favor you rather than the other way around.
When should you fly from Hanoi to Seoul?
If you can only pick one season, pick autumn: September to November delivers Seoul's famous foliage, clear skies, festival season, and comfortable 15–22°C days. Hanoi has its own lovely autumn, but Seoul's version — with mountains and palace grounds turning red and gold — is worth the flight on its own.
Spring, from March to May, is cherry blossom time, peaking in early April. The weather is comfortable and the city's parks are at their best. Like autumn, it is a high-demand window, so early booking is the rule rather than the exception.
December to February is properly cold, around -5 to 5°C — colder than a Hanoi winter — but it unlocks ski season, winter festivals, and the year's cheapest flights. For travelers who already own a real winter coat, it is the value pick.
On arrival: money, timezone, getting around
Korea runs on the Korean Won (KRW) and speaks Korean. Seoul's time zone is UTC+9, two hours ahead of Hanoi — enough to notice on arrival day, not enough to cause real jet lag on this direct, convenient flight.
The single most useful pre-trip step for Vietnamese travelers: apply for your K-ETA online at least 72 hours before departure; it is mandatory. The second most useful: install Naver Maps. Google Maps does not work properly in South Korea because of national security restrictions, and Naver is what locals actually use.
Once in the city, buy a T-money card at any convenience store — it covers all buses and subways and even some taxis. And do not overlook those same convenience stores (CU, GS25) for food: their hot kimbap, ramyeon, and rice bowls are a legitimate, wallet-friendly meal after a long sightseeing day.
Where to stay & what to do in Seoul
Base yourself according to your style: Hongdae for budget stays and student-district energy, Myeongdong for mid-range hotels in the middle of the shopping action, or Gangnam / Apgujeong if you want Seoul's luxury end.
The classic first-timer circuit runs through Gyeongbokgung Palace, Bukchon Hanok Village's traditional alleys, and N Seoul Tower on Namsan for the skyline view — capped with Korean BBQ in Mapo-gu, which is exactly as good as the shows make it look.
For everything beyond the flight — detailed transport advice, food strategy, and which neighborhood truly fits you — our full Seoul guide lives at /destinations/seoul.
Booking tips for this route
- Sort out your K-ETA online at least 72 hours before your flight — it is required for Vietnamese citizens, and leaving it late is the classic mistake on this route.
- Autumn (September–November) and early-April cherry blossom dates sell fast from Hanoi; book those well ahead.
- December–February is the cheapest time to fly — pack for -5 to 5°C and you will be rewarded with low fares and winter festivals.
- Midweek flights out of Hanoi tend to be cheaper than weekend ones, and Pingsme's daily-updated comparison across 87 airlines will flag the dips for you.
- Download Naver Maps before departure and grab a T-money card on arrival — Google Maps will let you down in Korea.
Content updated: 2026-07-18
Frequently asked questions
When is the best time to fly from Hanoi to Seoul?
Autumn — September to November — is Seoul's best season, with foliage, festivals, clear skies, and 15–22°C weather; it is also the busiest booking period. Cherry blossom season peaks in early April and is equally popular. Winter, December to February, is cold at -5 to 5°C but brings ski season, winter festivals, and the cheapest flights of the year.
What should Hanoi travelers know about Seoul's timezone, currency, and entry requirements?
Seoul is on UTC+9, two hours ahead of Vietnam, so the adjustment after this direct, convenient flight is minor. The currency is the Korean Won (KRW) and the language is Korean. Vietnamese citizens must apply online for a K-ETA electronic travel authorization at least 72 hours before departure — it is a mandatory entry requirement.
How do I get a good fare on Hanoi – Seoul flights?
Book early for the peak seasons — autumn (September–November) and cherry blossom season around early April — or fly in winter (December–February) when fares are the lowest of the year. Midweek departures are usually cheaper than weekends. Pingsme compares 87 airlines on this route and updates prices daily, so tracking the route there is the easiest way to catch a drop.
What is the cheapest flight from Hanoi to Seoul right now?
The lowest fare we've collected is $136 with 9G, departing 2026-08-25. Fares change quickly — the final price is always confirmed on the airline or partner site.
How often are prices on this page updated?
Automated crawlers refresh fares on this route at least once daily. Each listed deal reflects the most recent collection.
Which airlines does Pingsme compare for Hanoi to Seoul?
Pingsme tracks 87 airlines worldwide and lists every carrier with a collected fare on this route, ranked by price.
Does Pingsme sell tickets?
No — Pingsme is a free price comparator. Clicking a deal takes you to the airline or travel partner to complete the booking; we earn a small affiliate commission at no extra cost to you.
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