Find the cheapest flights from Seoul to Hanoi in 2026. Compare airlines, prices by month, and booking tips to save on your trip.
Route: Seoul (ICN) → Hanoi (HAN)
Distance: Direct flights not available
Flight Duration: 7 h 30 m – 12 h
Prices by Month
| Month | Avg Price | Demand |
|---|---|---|
| January | €480 | high |
| February | €520 | high |
| March | €380 | medium |
| April | €340 | low |
| May | €360 | medium |
| June | €420 | medium |
| July | €490 | high |
| August | €510 | high |
| September | €350 | low |
| October | €340 | low |
| November | €360 | medium |
| December | €450 | high |
Airlines on This Route
- Vietnam Airlines (direct): from €420 — Book directly on Vietnam Airlines website for best prices. Their flexible fare includes changes without fees.
- Korean Air (direct): from €450 — Use Korean Air’s Korean-language site for sometimes lower prices. Check SKYPASS redemption rates.
- VietJet Air (direct): from €310 — Add baggage during initial booking — prices double at airport. Watch for flash sales on their app.
- Jeju Air (direct): from €330 — Often cheapest option. Book 5-7 weeks ahead for best deals. No advance seat selection on basic fare.
- Asiana Airlines (direct): from €440 — Join Asiana Club for redeeming miles on this route. Offers good connection times at ICN.
- Singapore Airlines (connecting): from €480 — Great if you want a layover in Singapore. Book 8+ weeks ahead for lowest fares.
Booking Strategy
The Seoul-Hanoi route is highly competitive with daily direct flights from multiple carriers. For the cheapest fares, target April-May or September-October shoulder seasons when prices drop to €300-380. VietJet Air and Jeju Air consistently offer the lowest direct fares, but factor in baggage costs if you need checked luggage. Tuesday and Wednesday departures are typically 10-15% cheaper than weekend flights. Book 5-8 weeks in advance for direct flights — last-minute deals are rare on this popular route. Use Google Flights or Skyscanner to track price trends, then book directly with the airline to avoid third-party fees. Vietnamese visa-on-arrival is available for most nationalities, making last-minute trips viable.
Route Tips
- Arrive at Incheon Terminal 2 for most Seoul-Hanoi flights — Vietnam Airlines, VietJet, and Jeju Air typically use this terminal. Allow 2.5 hours before departure for international flights.
- Vietnam visa-on-arrival is available for most nationalities but requires pre-approval letter (€20-50 via agencies). Processing takes 3-5 business days — apply at least one week before departure.
- Book VietJet flights on their app rather than website — sometimes exclusive flash sales only appear in the mobile app. Enable notifications for deal alerts.
- ICN airport offers excellent layover facilities if connecting — free shower rooms, nap zones, and free city tours for transit passengers with 5+ hour layovers.
- Avoid Tet holiday period (late January to mid-February) — flight prices double and many businesses close. If traveling during Tet, book 3+ months ahead.
Frequently Asked Questions
How long is the flight from Seoul to Hanoi?
Direct flights from Seoul Incheon (ICN) to Hanoi Noi Bai (HAN) take approximately 4 hours 35 minutes to 5 hours 30 minutes. The main carriers offering direct service include Vietnam Airlines, Korean Air, Asiana Airlines, VietJet Air, and Jeju Air. If flying with one stop (connecting), expect 7.5 to 12 hours depending on the hub city — common connection points include Singapore, Bangkok, Hong Kong, and Shanghai. Early morning departures from Seoul typically have shorter connection times.
How much does it cost to fly from Seoul to Hanoi?
Round-trip prices range from €300 to €600 depending on season and airline. Budget carriers like VietJet Air and Jeje Air offer the cheapest fares starting around €300-380 for basic economy. Full-service airlines like Vietnam Airlines, Korean Air, and Asiana typically charge €420-520 for economy class. Peak season (December-February and July-August) sees prices climb to €500-600, while shoulder seasons (April-May, September-November) offer the best deals at €300-400. Business class on Vietnam Airlines runs €1,200-1,800.
Are there direct flights from Seoul to Hanoi?
Yes, direct flights are available and operate daily from Seoul Incheon International Airport (ICN) to Hanoi Noi Bai International Airport (HAN). Six airlines offer direct service: Vietnam Airlines (2-3 daily), Korean Air (1-2 daily), Asiana Airlines (1-2 daily), VietJet Air (2-3 daily), Jeju Air (1-2 daily), and Air Seoul (1 daily). Flight time is approximately 4h 35m to 5h 30m. No direct flights operate from Gimpo (GMP) airport — all direct services depart from Incheon.
What is the cheapest month to fly from Seoul to Hanoi?
April offers the lowest average prices at around €340 for round-trip economy fares. October is similarly cheap at €340, followed by September (€350) and March (€380). These shoulder months avoid both the Vietnamese New Year (Tet) rush in January/February and the summer vacation peak in July-August. February is the most expensive month (€520 average) due to Tet holiday travel. If your schedule is flexible, late April or early October provides the best combination of low prices and good weather.
Which airlines fly from Seoul to Hanoi?
Six airlines operate direct flights: Vietnam Airlines (full-service, 30kg baggage included), Korean Air (full-service, 23kg + 12kg cabin), Asiana Airlines (full-service, 23kg + 10kg cabin), VietJet Air (budget, basic fare cabin-only), Jeju Air (budget, 15kg + 10kg included), and Air Seoul (budget, 15kg + 10kg). Connecting options include Singapore Airlines, Cathay Pacific, Thai Airways, and China Eastern. VietJet and Jeju Air offer the lowest base fares but charge extra for checked bags, while full-service carriers include baggage in the ticket price.
What airport do I fly into in Hanoi?
You will arrive at Hanoi Noi Bai International Airport (HAN), located about 45 kilometers (28 miles) northeast of central Hanoi. Terminal 2 handles international arrivals including Seoul flights. Transport options: Grab/Gojek taxi to city center costs 300,000-400,000 VND (€11-15) and takes 40-60 minutes. Public bus line 07 runs every 15-20 minutes from Terminal 2 to Long Biên bus station (35,000 VND / €1.30, takes 60-90 minutes). Official taxi counters are available inside arrivals — avoid unlicensed taxi touts. Many hotels offer airport transfer booking.
How far in advance should I book Seoul to Hanoi flights?
Book direct flights 5-8 weeks ahead for optimal prices. The sweet spot is typically 6 weeks before departure when airlines release their lowest fare buckets. Booking too early (12+ weeks) sometimes results in higher prices as airlines haven’t yet released sale fares, while booking within 2 weeks rarely yields deals on this route due to consistent demand from business and leisure travelers. For February (Tet holiday) and July-August peak periods, book 8-12 weeks ahead to secure affordable seats. Connecting flights can sometimes be booked further in advance (10-12 weeks) for better prices.
Is it cheaper to fly from Seoul to Hanoi on weekdays?
Yes, weekday flights are typically cheaper by 10-20% compared to weekend departures. Tuesday and Wednesday are the cheapest days to fly, with Thursday offering similar rates. Friday through Sunday departures carry a premium, especially Sunday return flights from Hanoi. The difference can be €40-80 per person on round-trip tickets. If your schedule allows flexibility, departing Seoul on Tuesday/Wednesday and returning on Saturday provides the best value. Morning departures (6-9 AM) are often slightly cheaper than midday or evening flights on this route.
Data updated: 2026-03
