Cheap flights from St. Louis to Hanoi from £432

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2 stops
Sun, May 11
St. Louis STLHanoi HAN

£432
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3 stops
Tue, May 13
St. Louis STLHanoi HAN

£493
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3 stops
Mon, May 12
St. Louis STLHanoi HAN

£543
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3 stops
Mon, May 12
St. Louis STLHanoi HAN

£543
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3 stops
Mon, May 12
St. Louis STLHanoi HAN

£568
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2 stops
Tue, May 13
St. Louis STLHanoi HAN

£728
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Prices updated:

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2 stops
Sun, May 11 – Sat, May 17
St. Louis STLHanoi HAN

£1,007
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2 stops
Mon, May 12 – Sat, May 17
St. Louis STLHanoi HAN

£1,287
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2 stops
Mon, May 12 – Mon, May 19
St. Louis STLHanoi HAN

£1,292
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2 stops
Sun, May 11 – Sat, May 17
St. Louis STLHanoi HAN

£1,334
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2 stops
Sun, May 11 – Sat, May 17
St. Louis STLHanoi HAN

£1,334
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2 stops
Mon, May 12 – Mon, May 19
St. Louis STLHanoi HAN

£1,339
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Prices updated:

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How much do flights to Hanoi cost?

Key info about flying to Hanoi

Depart from
St. Louis Lambert International
Arrive to
Noi Bai International
Average flights per week
138
Flight distance
Worth visiting
Hanoi's Old Quarter - Halong Bay

Check-in for a flight from St. Louis to Hanoi

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUANo
Qatar AirwaysQTRQRYes
Vietnam AirlinesHVNVNYes
Korean AirKALKEYes
Alaska AirlinesASAASNo

Weather in Hanoi

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January20°C14°C
February22°C16°C
March26°C19°C
April29°C22°C
May32°C24°C
June34°C26°C
July33°C26°C
August32°C25°C
September31°C24°C
October29°C22°C
November26°C19°C
December21°C15°C
Hottest Month
34°C
June
Coldest month
14°C
January
Sunny days
257
days per year

14 day forecast

Monday
21 Apr
88%
36°C23°C
28 Apr
83%
27°C23°C
Tuesday
22 Apr
37°C24°C
29 Apr
77%
31°C23°C
Wednesday
23 Apr
80%
35°C24°C
30 Apr
82%
31°C23°C
Thursday
24 Apr
88%
27°C24°C
1 May
32°C23°C
Friday
25 Apr
81%
23°C22°C
2 May
35°C23°C
Saturday
26 Apr
88%
25°C22°C
3 May
37°C24°C
Sunday
27 Apr
81%
29°C23°C
4 May
73%
36°C25°C
The most popular airlines for this route are United Airlines, Qatar Airways, Vietnam Airlines, Korean Air, and Alaska Airlines. St. Louis and Hanoi have 138 direct flights per week. When you arrive at Hanoi, consider visiting Hanoi's Old Quarter, and Halong Bay.

Frequently asked questions

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How many airports are there near St. Louis?
How many airports are there near Hanoi?
What time do nonstop (direct) flights between St. Louis and Hanoi depart?
What time do nonstop (direct) flights between St. Louis and Hanoi arrive?
What time do flights between St. Louis and Hanoi depart?
What time do flights between St. Louis and Hanoi arrive?

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