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Cheap flights from St. Louis (STL) to Hanoi (HAN) from $664

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — HAN
May 13 — May 201
From?
To?
Mon 5/13
Mon 5/20
1 adult, Economy
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Cheap flight deals from St. Louis to Hanoi

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Hanoi (HAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 8, 2024.

Popular in

June

Cheapest in

October

Round-trip from

$1,024

One-way from

$664
High demand for flights, 31% potential price rise
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Best time to find cheap flights, 21% potential price drop
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From Lambert-St Louis to Hanoi Noibai
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One-way flight from Lambert-St Louis to Hanoi Noibai
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What is the cheapest day to fly round-trip from St. Louis to Hanoi?

Users have found that flying from St. Louis to Hanoi on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from St. Louis to Hanoi?

The best pricing can be found in the month of October. Prices to Hanoi from St. Louis average $1,750. You can even find prices in October for less than $1,750, as users have found deals to Hanoi from as low as $1,286. The month of June appears to be one of the more expensive times to travel to Hanoi from St. Louis. Flying in the targeted month can save you up to 45%.

When is the cheapest time to fly from St. Louis to Hanoi (STL - HAN)?

It’s optimal to fly from St. Louis to Hanoi at noon. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the afternoon.

Cheap Qatar Airways flights from St. Louis to Hanoi

Explore cheap flight options specifically provided by Qatar Airways for the route between St. Louis and Hanoi. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 8, 2024.
Consider these cheap Qatar Airways flights we've found departing from St. Louis to Hanoi. Come back soon if you're not finding the exact deal you're looking for.
Thu 10/34:17 pmSTL - HAN
2 stops26h 58mQatar Airways
Sun 10/63:30 amHAN - STL
2 stops28h 37mQatar Airways
Deal found 5/7$1,418
Tue 6/255:00 amSTL - HAN
2 stops62h 10mQatar Airways
Wed 7/103:30 amHAN - STL
2 stops30h 24mQatar Airways
Deal found 5/7$2,582
Wed 6/267:47 pmSTL - HAN
2 stops47h 28mQatar Airways
Wed 7/103:30 amHAN - STL
2 stops30h 24mQatar Airways
Deal found 5/7$2,602

Cheap United Airlines flights from St. Louis to Hanoi

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Hanoi. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 8, 2024.
Some of the lowest-priced United Airlines flights we've found at this time heading from St. Louis to Hanoi. Ensure the flight price, dates, time, and airline match your criteria before you book.
Thu 10/36:02 amSTL - HAN
2 stops28h 13mUnited Airlines
Mon 10/711:30 pmHAN - STL
3 stops28h 52mUnited Airlines
Deal found 5/7$1,483
Thu 10/37:15 amSTL - HAN
2 stops26h 45mUnited Airlines
Mon 10/711:30 pmHAN - STL
3 stops28h 52mUnited Airlines
Deal found 5/6$1,721

Cheap St. Louis to Hanoi flights in May & June 2024

Find cheap flight options from St. Louis to Hanoi specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,749,864 searches. Prices were last updated on May 8, 2024.
These are some of the most attractive deals on flights from St. Louis to Hanoi in 2024. More deals are always being added, so be sure to check back regularly.
Wed 6/261:55 pmSTL - HAN
3 stops34h 10mMultiple Airlines
Thu 7/117:55 amHAN - STL
3 stops44h 34mMultiple Airlines
Deal found 5/7$1,846
Tue 6/255:31 pmSTL - HAN
2 stops33h 54mTurkish Airlines
Thu 7/1111:05 pmHAN - STL
2 stops51h 31mTurkish Airlines
Deal found 5/7$2,025
Tue 6/258:05 amSTL - HAN
2 stops50h 10mMultiple Airlines
Thu 7/117:55 amHAN - STL
3 stops44h 34mMultiple Airlines
Deal found 5/7$2,039
Wed 6/265:27 amSTL - HAN
2 stops28h 23mAmerican Airlines
Thu 7/1111:20 pmHAN - STL
2 stops35h 32mAmerican Airlines
Deal found 5/7$2,198
Wed 6/268:05 amSTL - HAN
2 stops26h 10mMultiple Airlines
Thu 7/115:45 pmHAN - STL
3 stops34h 44mMultiple Airlines
Deal found 5/7$2,436
Tue 6/255:00 amSTL - HAN
2 stops62h 10mQatar Airways
Wed 7/103:30 amHAN - STL
2 stops30h 24mQatar Airways
Deal found 5/7$2,582
Wed 6/267:47 pmSTL - HAN
2 stops47h 28mQatar Airways
Wed 7/103:30 amHAN - STL
2 stops30h 24mQatar Airways
Deal found 5/7$2,602
Tue 6/255:27 amSTL - HAN
3 stops28h 23mAmerican Airlines
Thu 7/1111:20 pmHAN - STL
3 stops34h 34mAmerican Airlines
Deal found 5/7$4,516
Tue 6/256:30 amSTL - HAN
2 stops27h 45mMultiple Airlines
Thu 7/1110:55 pmHAN - STL
1 stop26h 35mMultiple Airlines
Deal found 5/7$5,318

St. Louis to Hanoi 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Hanoi in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 8, 2024.
These are some of the most attractive deals on flights from St. Louis to Hanoi in 2024. More deals are always being added, so be sure to check back regularly.
Thu 10/34:17 pmSTL - HAN
2 stops26h 58mQatar Airways
Sun 10/63:30 amHAN - STL
2 stops28h 37mQatar Airways
Deal found 5/7$1,418
Thu 10/35:30 pmSTL - HAN
2 stops36h 35mCathay Pacific
Mon 10/77:05 pmHAN - STL
2 stops37h 02mCathay Pacific
Deal found 5/7$1,422
Thu 10/36:30 amSTL - HAN
2 stops40h 25mDelta
Mon 10/712:15 pmHAN - STL
2 stops21h 16mDelta
Deal found 5/6$1,479
Thu 10/36:02 amSTL - HAN
2 stops28h 13mUnited Airlines
Mon 10/711:30 pmHAN - STL
3 stops28h 52mUnited Airlines
Deal found 5/7$1,483
Thu 10/37:15 amSTL - HAN
2 stops26h 45mUnited Airlines
Mon 10/711:30 pmHAN - STL
3 stops28h 52mUnited Airlines
Deal found 5/6$1,721
Mon 7/86:29 amSTL - HAN
2 stops27h 21mJapan Airlines
Wed 8/711:20 pmHAN - STL
2 stops35h 22mJapan Airlines
Deal found 5/7$1,842
Wed 6/261:55 pmSTL - HAN
3 stops34h 10mMultiple Airlines
Thu 7/117:55 amHAN - STL
3 stops44h 34mMultiple Airlines
Deal found 5/7$1,846
Sun 12/157:15 pmSTL - HAN
2 stops37h 25mDelta
Fri 1/1011:00 pmHAN - STL
2 stops35h 42mDelta
Deal found 5/7$2,001
Tue 6/255:31 pmSTL - HAN
2 stops33h 54mTurkish Airlines
Thu 7/1111:05 pmHAN - STL
2 stops51h 31mTurkish Airlines
Deal found 5/7$2,025

One-way flights to Hanoi from St. Louis

Search for one-way flight options from St. Louis to Hanoi. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 8, 2024.
Users traveling one-way from St. Louis to Hanoi can select one of these great deals. For those needing a return trip from St. Louis, there is a search form available above.
Thu 9/197:30 amSTL - HAN
2 stops46h 35mCathay Pacific
Deal found 5/7$664
Wed 10/22:25 pmSTL - HAN
2 stops31h 45mMultiple Airlines
Deal found 5/7$668
Thu 9/198:35 pmSTL - HAN
3 stops45h 05mMultiple Airlines
Deal found 5/7$680
Wed 10/211:36 amSTL - HAN
3 stops46h 24mMultiple Airlines
Deal found 5/7$708
Wed 10/23:25 pmSTL - HAN
1 stop26h 40mMultiple Airlines
Deal found 5/7$5,243

Find flights from St. Louis to Hanoi within your budget

Customize your flight search to find flights from St. Louis to Hanoi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 8, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,418 - $2,198

Route

Depart

Return

Price

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Thu 10/3

2 stops26h 58m

Hanoi Noibai

Sun 10/6

2 stops28h 37m

$1,418

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Thu 10/3

2 stops36h 35m

Hanoi Noibai

Mon 10/7

2 stops37h 02m

$1,422

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Thu 10/3

2 stops40h 25m

Hanoi Noibai

Mon 10/7

2 stops21h 16m

$1,479

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Thu 10/3

2 stops28h 13m

Hanoi Noibai

Mon 10/7

3 stops28h 52m

$1,483

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Thu 10/3

2 stops26h 45m

Hanoi Noibai

Mon 10/7

3 stops28h 52m

$1,721

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Mon 7/8

2 stops27h 21m

Hanoi Noibai

Wed 8/7

2 stops35h 22m

$1,842

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Wed 6/26

3 stops34h 10m

Hanoi Noibai

Thu 7/11

3 stops44h 34m

$1,846

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Tue 6/25

2 stops33h 54m

Hanoi Noibai

Thu 7/11

2 stops51h 31m

$2,025

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Wed 6/26

2 stops28h 23m

Hanoi Noibai

Thu 7/11

2 stops35h 32m

$2,198

Flights are sorted by cheapest first

Deals found on 5/7

When is the cheapest time to fly from St. Louis to Hanoi?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Hanoi. Price data was last updated on May 5, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Hanoi flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Hanoi by month

Plan your trip from St. Louis to Hanoi by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Hanoi is currently $1,593 while a round-trip flight costs $1,715. Price data was last updated on May 5, 2024.

Currently, September is the cheapest month in which you can book a flight from St. Louis to Hanoi (average of $1,024). Flying from St. Louis to Hanoi in June is currently the most expensive (average of $1,644). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$1,188

February

$1,114

March

$1,068

April

$1,119

May

$1,286

June

$1,644

July

$1,361

August

$1,234

September

$1,024

October

$1,138

November

$1,158

December

$1,363

Temperature and rainfall in Hanoi by month

Plan your trip to Hanoi by taking into account the average temperature and rainfall totals by month.

HAN

Temperature

62.6 - 84.2 °F

Reviews of airlines servicing Hanoi

Get insights into the airlines that provide service to Hanoi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hanoi. Reviews last updated May 8, 2024.
See what other customers who have flown with Qatar Airways, United Airlines and American Airlines from St. Louis to Hanoi have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,478 reviews
Check prices

Entertainment

7.8

Comfort

8.2

Overall

8.3

Food

7.9

Boarding

8.4

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Japan Airlines
8.3
Very good
1,478 reviews
Japan Airlines
8.3
Very good
1,478 reviews
Check prices

Entertainment

7.8

Comfort

8.2

Overall

8.3

Food

7.9

Boarding

8.4

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Delta
8.1
Very good
10,810 reviews
Japan Airlines
8.3
Very good
1,478 reviews
Check prices

Entertainment

7.8

Comfort

8.2

Overall

8.3

Food

7.9

Boarding

8.4

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Cathay Pacific
7.8
Good
1,100 reviews
Japan Airlines
8.3
Very good
1,478 reviews
Check prices

Entertainment

7.8

Comfort

8.2

Overall

8.3

Food

7.9

Boarding

8.4

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Qatar Airways
7.7
Good
4,430 reviews
Japan Airlines
8.3
Very good
1,478 reviews
Check prices

Entertainment

7.8

Comfort

8.2

Overall

8.3

Food

7.9

Boarding

8.4

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Turkish Airlines
7.5
Good
3,711 reviews
Japan Airlines
8.3
Very good
1,478 reviews
Check prices

Entertainment

7.8

Comfort

8.2

Overall

8.3

Food

7.9

Boarding

8.4

Crew

8.7

Reviews

1 / 10

I travel frequently but it was my first JAL flight and it turned out to be a good experience.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Hanoi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from St. Louis to Hanoi for under $1,500 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Hanoi for under $1,500. The cheapest flight booked recently is on Qatar Airways for just $1,418, but on average you can expect to pay $2,782.

  • What are the cheapest airlines flying from St. Louis to Hanoi round-trip?

    Currently priced at $1,418, Qatar Airways will fly you from St. Louis to Hanoi and back. In addition to Qatar Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Cathay Pacific and Delta - these airlines can fly you to your destination from $1,422 and $1,479, respectively. Users have found that Qatar Airways is 18% cheaper than the other options available to this destination.

  • What are the most popular airlines that fly from St. Louis to Hanoi?

    Before booking your flight from St. Louis to Hanoi check out the most popular airlines for this route: American Airlines, Delta or Japan Airlines.

  • What does STL to HAN mean?

    STL stands for Lambert-St Louis Airport, while HAN stands for Hanoi Noibai Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from St. Louis to Hanoi that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Hanoi flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Hanoi with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Hanoi flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Hanoi that include hotel bookings?

    Yes. In addition to deals on St. Louis to Hanoi flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Hanoi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Hanoi.

  • Can I find deals for business class flights from St. Louis to Hanoi?

    Yes. Cheapflights offers flight deals from St. Louis to Hanoi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Hanoi that allow pets onboard?

    Many airlines flying from St. Louis to Hanoi offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Hanoi?

    Yes, you can often find last-minute deals on St. Louis to Hanoi flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Hanoi flight deals updated?

    The St. Louis to Hanoi flight deals you see on this page were last updated on 5/7.

See more FAQs

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Alternative routes for St. Louis to Hanoi
See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from St. Louis to Hanoi

Discover the top 6 airlines that operate flights from St. Louis to Hanoi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,749,864 searches. Data last updated May 8, 2024.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,242Average$1,510FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Japan AirlinesCheapest$1,269Average$1,908FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights
DeltaCheapest$1,432Average$2,405FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$1,453Average$1,510FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
ANACheapest$1,491Average$1,647FlexibilityNo cancel feeOn-time80%
Search ANA flights
Korean AirCheapest$1,561Average$2,297FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
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Search flights from St. Louis to Hanoi by cabin class

Find flights from St. Louis to Hanoi, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Hanoi?

When you search for this flight from St. Louis to Hanoi, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Hanoi?

Cheapflights simply makes it quick and affordable to book flights from St. Louis to Hanoi by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from St. Louis to Hanoi with no change fees?

Certainly. Search results for flights to Hanoi from St. Louis shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from St. Louis to Hanoi become cheaper?

Of course! You can now track prices for flights from St. Louis to Hanoi and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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