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Cheap flights from St. Louis (STL) to Hanoi (HAN) from $673

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 9/2. 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
Apr 30 — May 71
From?
To?
Tue 4/30
Tue 5/7
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 April 25, 2024.

Popular in

June

Cheapest in

September

Round-trip from

$1,066

One-way from

$699
High demand for flights, 37% potential price rise
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Best time to find cheap flights, 25% 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 September. Prices to Hanoi from St. Louis average $1,604. You can even find prices in September for less than $1,604, as users have found deals to Hanoi from as low as $1,207. 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 59%.

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 Delta flights from St. Louis to Hanoi

Explore cheap flight options specifically provided by Delta 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 3,068,701 searches. Data last updated April 25, 2024.
Consider these cheap Delta 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 10/36:30 amSTL - HAN
2 stops40h 25mDelta
Mon 10/712:15 pmHAN - STL
2 stops21h 16mDelta
Deal found 4/23$1,479
Sun 6/96:06 amSTL - HAN
2 stops40h 49mDelta
Sat 6/1511:10 pmHAN - STL
2 stops34h 45mDelta
Deal found 4/25$1,955

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 3,068,701 searches. Data last updated April 25, 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 4/23$1,483
Sat 5/256:08 amSTL - HAN
2 stops28h 07mUnited Airlines
Sat 6/111:35 pmHAN - STL
3 stops52h 50mUnited Airlines
Deal found 4/25$3,548

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

Find cheap flight options from St. Louis to Hanoi specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,701 searches. Prices were last updated on April 25, 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.
Sat 5/257:41 pmSTL - HAN
2 stops38h 09mMultiple Airlines
Sat 6/111:20 pmHAN - STL
2 stops36h 39mMultiple Airlines
Deal found 4/25$2,030
Sat 5/253:10 pmSTL - HAN
2 stops43h 05mMultiple Airlines
Fri 5/3112:20 amHAN - STL
2 stops31h 22mMultiple Airlines
Deal found 4/25$3,157
Sat 5/256:08 amSTL - HAN
2 stops28h 07mUnited Airlines
Sat 6/111:35 pmHAN - STL
3 stops52h 50mUnited Airlines
Deal found 4/25$3,548
Sat 5/255:21 amSTL - HAN
3 stops28h 29mAmerican Airlines
Sat 6/111:20 pmHAN - STL
3 stops34h 27mAmerican Airlines
Deal found 4/25$4,899

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 3,068,701 searches. Data last updated April 25, 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 10/36:30 amSTL - HAN
2 stops40h 25mDelta
Mon 10/712:15 pmHAN - STL
2 stops21h 16mDelta
Deal found 4/23$1,479
Thu 10/36:02 amSTL - HAN
2 stops28h 13mUnited Airlines
Mon 10/711:30 pmHAN - STL
3 stops28h 52mUnited Airlines
Deal found 4/23$1,483
Thu 10/34:17 pmSTL - HAN
2 stops26h 58mQatar Airways
Sun 10/63:30 amHAN - STL
2 stops30h 05mQatar Airways
Deal found 4/23$1,564
Sun 6/96:06 amSTL - HAN
2 stops40h 49mDelta
Sat 6/1511:10 pmHAN - STL
2 stops34h 45mDelta
Deal found 4/25$1,955
Mon 7/87:32 pmSTL - HAN
2 stops27h 33mMultiple Airlines
Wed 8/76:00 pmHAN - STL
2 stops31h 20mMultiple Airlines
Deal found 4/25$1,956
Sat 5/257:41 pmSTL - HAN
2 stops38h 09mMultiple Airlines
Sat 6/111:20 pmHAN - STL
2 stops36h 39mMultiple Airlines
Deal found 4/25$2,030
Sun 6/94:48 pmSTL - HAN
2 stops26h 27mQatar Airways
Fri 6/143:30 amHAN - STL
2 stops30h 32mQatar Airways
Deal found 4/25$2,685
Mon 7/85:30 pmSTL - HAN
2 stops40h 45mUnited Airlines
Wed 8/711:35 pmHAN - STL
3 stops52h 53mUnited Airlines
Deal found 4/25$2,693
Mon 7/85:25 pmSTL - HAN
2 stops29h 30mMultiple Airlines
Tue 8/61:30 amHAN - STL
2 stops34h 29mMultiple Airlines
Deal found 4/25$3,093

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 3,068,701 searches. Data last updated April 25, 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.
Mon 9/24:45 pmSTL - HAN
3 stops48h 45mMultiple Airlines
Deal found 4/25$673
Sat 9/75:30 pmSTL - HAN
2 stops34h 05mMultiple Airlines
Deal found 4/25$699
Sat 9/78:00 amSTL - HAN
3 stops41h 10mMultiple Airlines
Deal found 4/25$707
Mon 9/27:31 pmSTL - HAN
2 stops27h 34mMultiple Airlines
Deal found 4/25$710
Sat 5/255:15 pmSTL - HAN
3 stops50h 00mMultiple Airlines
Deal found 4/25$1,000
Sat 5/256:02 pmSTL - HAN
2 stops51h 53mCathay Pacific
Deal found 4/25$1,172

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 3,068,701 searches. Data last updated April 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,479 - $4,722

Route

Depart

Return

Price

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 58m

Hanoi Noibai

Sun 10/6

2 stops30h 05m

$1,564

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Sun 6/9

2 stops40h 49m

Hanoi Noibai

Sat 6/15

2 stops34h 45m

$1,955

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Sat 5/25

2 stops38h 09m

Hanoi Noibai

Sat 6/1

2 stops36h 39m

$2,030

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Sun 6/9

2 stops26h 27m

Hanoi Noibai

Fri 6/14

2 stops30h 32m

$2,685

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Sat 5/25

2 stops43h 05m

Hanoi Noibai

Fri 5/31

2 stops31h 22m

$3,157

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Sat 5/25

2 stops28h 07m

Hanoi Noibai

Sat 6/1

3 stops52h 50m

$3,548

Lambert-St LouisHanoi Noibai

STL - HAN

STLHAN

Lambert-St Louis

Sun 6/9

3 stops27h 50m

Hanoi Noibai

Sat 6/15

3 stops34h 42m

$4,722

Flights are sorted by cheapest first

Deals found on 4/23

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 April 21, 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 mornings 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.
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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 $827 while a round-trip flight costs $2,514. Price data was last updated on April 21, 2024.

Currently, March is the cheapest month in which you can book a flight from St. Louis to Hanoi (average of $1,066). Flying from St. Louis to Hanoi in June is currently the most expensive (average of $1,636). 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

$1,066

April

$1,126

May

$1,314

June

$1,636

July

$1,366

August

$1,234

September

$1,076

October

$1,125

November

$1,154

December

$1,355

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 April 25, 2024.
See what other customers who have flown with Delta, United Airlines and Qatar Airways 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.
Delta
8.1
Very good
10,975 reviews
Check prices

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very good
10,975 reviews
Delta
8.1
Very good
10,975 reviews
Check prices

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Cathay Pacific
7.9
Good
1,135 reviews
Delta
8.1
Very good
10,975 reviews
Check prices

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Qatar Airways
7.7
Good
4,479 reviews
Delta
8.1
Very good
10,975 reviews
Check prices

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

United Airlines
7.4
Good
11,234 reviews
Delta
8.1
Very good
10,975 reviews
Check prices

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

American Airlines
7.3
Good
14,898 reviews
Delta
8.1
Very good
10,975 reviews
Check prices

Boarding

8.2

Crew

8.6

Food

7.4

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

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 Delta for just $1,479, but on average you can expect to pay $3,767.

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

    Currently priced at $1,479, Delta will fly you from St. Louis to Hanoi and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Qatar Airways - these airlines can fly you to your destination from $1,483 and $1,564, respectively. Users have found that Delta is 7% 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 4/25.

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 3,068,701 searches. Data last updated April 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$936Average$1,492FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Qatar AirwaysCheapest$1,185Average$1,490FlexibilityNo 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
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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