$515+ Cheap flights from St. Louis (STL) to Hanoi (HAN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HAN
Dec 10 — Dec 171
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Hanoi with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Hanoi
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Best
Last-minute
One-way
Cheapest flights from St. Louis to HanoiExplore the most affordable flight options available from St. Louis to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
Explore the most affordable flight options available from St. Louis to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
This Travelocity deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 am -
2 stops54h 25m
Sun 11/228:55 am -
2 stops52h 04m
Deal found 11/6![Multiple Airlines logo]()
$1,177
This Travelocity deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/63:23 pm -
2 stops45h 02m
Sun 11/158:55 am -
2 stops52h 04m
Deal found 11/6![Multiple Airlines logo]()
$1,214
This American Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/85:50 am -
2 stops27h 35m
Tue 12/1511:55 pm -
2 stops31h 31m
Deal found 11/10![American Airlines logo]()
$1,227
This BusinessClass deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:20 pm -
2 stops26h 45m
Mon 11/1610:30 am -
2 stops22h 49m
Deal found 11/5![Cathay Pacific logo]()
$1,252
This China Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:05 am -
2 stops41h 25m
Mon 11/165:30 pm -
2 stops33h 55m
Deal found 11/6![Multiple Airlines logo]()
$1,348
Best flights from St. Louis to HanoiDiscover carefully curated flight deals from St. Louis to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
Discover carefully curated flight deals from St. Louis to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
This Japan Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/59:15 am -
2 stops48h 10m
Tue 1/1211:55 pm -
2 stops24h 25m
Deal found 11/7![Japan Airlines logo]()
$1,379
This Mytrip deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/84:05 pm -
3 stops31h 15m
Tue 12/152:25 pm -
3 stops33h 52m
Deal found 11/10![Multiple Airlines logo]()
$1,881
This CheapOair deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:30 am -
2 stops35h 35m
Mon 1/48:45 am -
2 stops49h 52m
Deal found 11/8![Turkish Airlines logo]()
$2,023
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/239:52 am -
2 stops36h 18m
Wed 12/3012:20 pm -
2 stops37h 59m
Deal found 11/8![Delta logo]()
$2,295
This Mytrip deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/245:37 pm -
2 stops29h 33m
Thu 12/316:20 pm -
3 stops34h 06m
Deal found 11/9![Multiple Airlines logo]()
$2,178
This Kiwi.com deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:40 pm -
1 stop25h 50m
Mon 1/46:20 pm -
2 stops33h 48m
Deal found 11/8![Multiple Airlines logo]()
$3,708
This Kiwi.com deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/63:40 pm -
1 stop25h 50m
Tue 1/1211:25 pm -
1 stop27h 20m
Deal found 11/7![Multiple Airlines logo]()
$4,005
This Mytrip deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/233:40 pm -
2 stops28h 30m
Wed 12/308:40 am -
3 stops27h 58m
Deal found 11/8![Multiple Airlines logo]()
$4,258
Last-minute flights from St. Louis to HanoiDiscover last-minute flight deals from St. Louis to Hanoi. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Hanoi. Data last updated November 10, 2026 and is based on user searches.
This Travelocity deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/63:23 pm -
2 stops45h 02m
Sun 11/158:55 am -
2 stops52h 04m
Deal found 11/6![Multiple Airlines logo]()
$1,214
This BusinessClass deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:20 pm -
2 stops26h 45m
Mon 11/1610:30 am -
2 stops22h 49m
Deal found 11/5![Cathay Pacific logo]()
$1,252
This China Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:05 am -
2 stops41h 25m
Mon 11/165:30 pm -
2 stops33h 55m
Deal found 11/6![Multiple Airlines logo]()
$1,348
This Travelocity deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 am -
2 stops54h 25m
Sun 11/228:55 am -
2 stops52h 04m
Deal found 11/6![Multiple Airlines logo]()
$1,177
This American Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/85:50 am -
2 stops27h 35m
Tue 12/1511:55 pm -
2 stops31h 31m
Deal found 11/10![American Airlines logo]()
$1,227
One-way flights from St. Louis to HanoiSearch for one-way flight options from St. Louis to Hanoi. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
Search for one-way flight options from St. Louis to Hanoi. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This Expedia deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/83:10 pm -
2 stops45h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$515
This Cathay Pacific deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/236:00 am -
2 stops39h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$551
This Cathay Pacific deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/210:25 am -
2 stops43h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Multiple Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/231:08 pm -
3 stops45h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![United Airlines logo]()
$832
This Malaysia Airlines deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/26:00 am -
3 stops42h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Malaysia Airlines logo]()
$1,410
This Malaysia Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/236:00 am -
3 stops41h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Malaysia Airlines logo]()
$1,682
Find 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 November 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,085 (Cathay Pacific) |
One-way from | $515 (Expedia) |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated November 10, 2026.
Use the filters below to find and compare flights from St. Louis to Hanoi that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Mon 3/8
3:10 pm-1:25 am
2 stops45h 15m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$515
Quickest round-trip
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Tue 2/23
6:00 am-10:05 am
2 stops39h 05m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$551
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Fri 4/2
10:25 am-6:10 pm
2 stops43h 45m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$607
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Tue 2/23
1:08 pm-11:15 pm
3 stops45h 07m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$832
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Tue 1/5
9:15 am-10:25 pm
2 stops48h 10m
Hanoi Noibai
Tue 1/12
11:55 pm-11:20 am
2 stops24h 25m
$1,379
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Fri 4/2
6:00 am-12:15 pm
3 stops42h 15m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$1,410
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Tue 12/8
4:05 pm-12:20 pm
3 stops31h 15m
Hanoi Noibai
Tue 12/15
2:25 pm-11:17 am
3 stops33h 52m
$1,881
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Wed 12/2
6:30 am-7:05 am
2 stops35h 35m
Hanoi Noibai
Mon 1/4
8:45 am-9:37 pm
2 stops49h 52m
$2,023
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Thu 12/24
5:37 pm-12:10 pm
2 stops29h 33m
Hanoi Noibai
Thu 12/31
6:20 pm-3:26 pm
3 stops34h 06m
$2,178
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Wed 12/23
9:52 am-11:10 am
2 stops36h 18m
Hanoi Noibai
Wed 12/30
12:20 pm-1:19 pm
2 stops37h 59m
$2,295
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Hanoi
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Hanoi in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Hanoi flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Hanoi flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Hanoi flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Hanoi flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Hanoi flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Hanoi
Have a flexible travel schedule? Discover the best time to fly to Hanoi from St. Louis with our price prediction graph.
STL-HAN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
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 November 10, 2026.
Get a feel of what it's like to fly with Japan Airlines from St. Louis to Hanoi by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.4
Food
7.7
Comfort
8.2
Crew
8.7
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Boarding
8.4
Food
7.7
Comfort
8.2
Crew
8.7
Entertainment
7.8
Overall
8.3
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
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.
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Complete your trip
Complete your trip to Hanoi by adding a car rental and/or hotel reservation to your travel itinerary.
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.
Other flights to Hanoi
Explore flights to Hanoi departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 10, 2026.
St. Louis and Hanoi flights
Browse other St. Louis and Hanoi flight options. Last updated on November 10, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on November 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from St. Louis to Hanoi
Discover the top airline 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 7,457,451 searches. Data last updated November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,013 | Average$1,266 | FlexibilityNo cancel fee | On-time79% |