Cheapest one-way tickets
Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.
Round trips
The cheapest return tickets found recently, price for the whole trip.
- Nov 19 – Dec 15Jeju Air, nonstop out, nonstop back $216
- Nov 18 – Dec 16Sun PhuQuoc Airways, 1 stop out, nonstop back $220
- Nov 10 – Nov 14Jeju Air, nonstop out, nonstop back $227
- Nov 29 – Dec 17Shandong Airlines, 1 stop out, nonstop back $229
- Nov 18 – Dec 17Vietravel Airlines, 1 stop out, nonstop back $230
Plan the rest of the trip
Price calendar
The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.
October 2026
November 2026
Lowest fares by month
In the fares found this week, October has the lowest: from $94 one-way, against $180 in February 2027. Pick a month to see its cheapest date.
- Oct$94
- Nov$96
- Dec$98
- Jan$113
- Feb$180
- Mar$157
- Apr$105
- May$108
- Junno fares yet
- Jul$109
- Augno fares yet
- Sepno fares yet
Show as a table
| Month | Cheapest one-way | Date | Stops |
|---|---|---|---|
| October | $94 | Thu, Oct 29 | 1 stop |
| November | $96 | Thu, Nov 19 | 1 stop |
| December | $98 | Tue, Dec 1 | 1 stop |
| January 2027 | $113 | Mon, Jan 18 | Nonstop |
| February 2027 | $180 | Mon, Feb 22 | 1 stop |
| March 2027 | $157 | Mon, Mar 29 | 1 stop |
| April 2027 | $105 | Fri, Apr 23 | Nonstop |
| May 2027 | $108 | Fri, May 21 | Nonstop |
| June 2027 | — | ||
| July 2027 | $109 | Fri, Jul 9 | Nonstop |
| August 2027 | — | ||
| September 2027 | — |
Fares and weather by month
The lowest one-way fare found for each month, next to the weather in Seoul. Average daily high and low and monthly precipitation, 1991–2020 normals.
| Oct2026 | Nov | Dec | Jan2027 | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lowest fare | $94 | $96 | $98 | $113 | $180 | $157 | $105 | $108 | – | $109 | – | – |
| High °C | 20° | 12° | 4° | 2° | 5° | 11° | 18° | 24° | 28° | 29° | 30° | 26° |
| Low °C | 11° | 4° | -3° | -5° | -3° | 2° | 8° | 14° | 19° | 22° | 23° | 18° |
| Precipitation mm | 52 | 51 | 23 | 17 | 28 | 37 | 73 | 104 | 130 | 414 | 348 | 142 |
Source: Seoul on Wikipedia, CC BY-SA 4.0.
Questions travellers ask
What is the cheapest month to fly from Hanoi to Seoul?
In the fares found this week, October has the lowest: from $94 one-way, against $180 in February 2027.
What is the weather in Seoul in October?
In October, the cheapest month to fly, the average daily high in Seoul is 20 °C and the low 11 °C.
Are there direct flights from Hanoi to Seoul?
Yes. Recent fares include nonstop flights with Vietjet, Jeju Air and Sun PhuQuoc Airways.
How long is the flight from Hanoi to Seoul?
A nonstop flight takes about 4h 10m. The distance is 1,667 mi.
Which day of the week is cheapest to fly?
In the fares we have, Tuesday departures are the cheapest, with a typical lowest fare of $100. Monday is the priciest at about $113.
More cheap flights from Hanoi
All 316 destinations- Da NangDAD Vietnam from $23 Thu, Oct 29, nonstop
- Nha TrangNHA Vietnam from $27 Mon, Nov 16, nonstop
- Ho Chi Minh CitySGN Vietnam from $28 Sat, Jan 16, nonstop
- Phu QuocPQC Vietnam from $31 Tue, Jan 26, nonstop
- HueHUI Vietnam from $35 Thu, Oct 29, nonstop
- Qui NhonUIH Vietnam from $37 Sun, Dec 6, nonstop
- DalatDLI Vietnam from $44 Mon, Jan 11, nonstop
- Hong KongHKG Hong Kong from $50 Fri, Dec 25, nonstop
- HaiphongHPH Vietnam from $54 Sat, Dec 5, 1 stop
- ShenzhenSZX China from $72 Sat, Nov 28, nonstop
- BangkokBKK Thailand from $72 Tue, Feb 2, nonstop
- SingaporeSIN Singapore from $77 Sat, Nov 7, nonstop