$542+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HAN
Nov 19 — Nov 261
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
Cheapest
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 October 20, 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 October 20, 2026.
This KAYAK deal was found by Cheapflights users on 10/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
2 stops47h 15m
Mon 11/1611:15 am -
2 stops42h 28m
Deal found 10/15![Cathay Pacific logo]()
$1,117
This Cathay Pacific deal was found by Cheapflights users on 10/18. 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.
Mon 11/98:10 am -
2 stops36h 55m
Mon 11/167:25 pm -
2 stops38h 17m
Deal found 10/18![Multiple Airlines logo]()
$1,138
This Cathay Pacific deal was found by Cheapflights users on 10/19. 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.
Wed 10/286:04 am -
2 stops40h 01m
Fri 11/1311:15 am -
2 stops24h 24m
Deal found 10/19![Multiple Airlines logo]()
$1,143
This Korean Air deal was found by Cheapflights users on 10/15. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:13 am -
2 stops38h 57m
Mon 11/1612:20 pm -
2 stops38h 03m
Deal found 10/15![Korean Air logo]()
$1,173
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Mon 11/307:30 am -
2 stops26h 45m
Sun 12/612:35 am -
2 stops33h 22m
Deal found 10/16![United Airlines logo]()
$1,177
This United Airlines deal was found by Cheapflights users on 10/18. 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.
Wed 10/219:00 am -
2 stops25h 15m
Sun 10/2512:25 am -
3 stops53h 40m
Deal found 10/18![United Airlines logo]()
$1,256
This United Airlines deal was found by Cheapflights users on 10/18. 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 10/208:35 am -
2 stops49h 40m
Sun 10/2512:25 am -
3 stops53h 40m
Deal found 10/18![United Airlines logo]()
$1,263
This Expedia deal was found by Cheapflights users on 10/19. 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.
Fri 12/46:04 am -
2 stops27h 21m
Thu 12/1012:35 am -
2 stops36h 24m
Deal found 10/19![Multiple Airlines logo]()
$1,282
This Delta deal was found by Cheapflights users on 10/18. 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.
Sun 10/187:20 pm -
2 stops51h 15m
Sun 10/2511:05 pm -
2 stops51h 40m
Deal found 10/18![Delta logo]()
$1,347
This United Airlines deal was found by Cheapflights users on 10/18. 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.
Wed 10/216:15 am -
2 stops28h 00m
Sat 10/2411:35 pm -
2 stops31h 48m
Deal found 10/18![United Airlines logo]()
$1,357
This United Airlines deal was found by Cheapflights users on 10/18. 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 10/203:12 pm -
2 stops43h 03m
Sat 10/2411:35 pm -
2 stops30h 30m
Deal found 10/18![United Airlines logo]()
$1,364
This United Airlines deal was found by Cheapflights users on 10/18. 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.
Mon 10/197:08 am -
2 stops27h 07m
Sun 10/2512:25 am -
2 stops30h 58m
Deal found 10/18![United Airlines logo]()
$1,370
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 October 20, 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 October 20, 2026.
This Cathay Pacific deal was found by Cheapflights users on 10/15. 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.
Wed 2/106:01 am -
2 stops39h 04m
Tue 2/2310:30 am -
2 stops25h 40m
Deal found 10/15![Multiple Airlines logo]()
$1,085
This Korean Air deal was found by Cheapflights users on 10/17. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:13 am -
2 stops38h 57m
Mon 11/1612:20 pm -
2 stops38h 03m
Deal found 10/17![Korean Air logo]()
$1,173
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Mon 11/307:30 am -
2 stops26h 45m
Sun 12/612:35 am -
2 stops33h 22m
Deal found 10/16![United Airlines logo]()
$1,177
This Cathay Pacific deal was found by Cheapflights users on 10/15. 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.
Wed 2/106:01 am -
2 stops39h 04m
Mon 2/227:25 pm -
2 stops41h 31m
Deal found 10/15![Multiple Airlines logo]()
$1,093
This Cathay Pacific deal was found by Cheapflights users on 10/19. 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.
Wed 1/276:01 am -
2 stops39h 04m
Thu 2/117:25 pm -
2 stops41h 31m
Deal found 10/19![Multiple Airlines logo]()
$1,135
This Cathay Pacific deal was found by Cheapflights users on 10/18. 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.
Mon 11/98:10 am -
2 stops36h 55m
Mon 11/167:25 pm -
2 stops38h 17m
Deal found 10/18![Multiple Airlines logo]()
$1,138
This Mytrip deal was found by Cheapflights users on 10/19. 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.
Fri 12/412:02 pm -
3 stops33h 03m
Fri 12/1112:20 pm -
3 stops35h 37m
Deal found 10/19![Multiple Airlines logo]()
$1,591
Last-minute flights from St. Louis to HanoiDiscover last-minute flight deals from St. Louis to Hanoi. Data last updated October 20, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Hanoi. Data last updated October 20, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/18. 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.
Mon 10/196:15 am -
2 stops28h 00m
Wed 10/2111:35 pm -
2 stops32h 41m
Deal found 10/18![United Airlines logo]()
$1,370
This United Airlines deal was found by Cheapflights users on 10/18. 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.
Mon 10/196:15 am -
2 stops28h 00m
Thu 10/2211:35 pm -
2 stops33h 34m
Deal found 10/18![United Airlines logo]()
$1,420
This United Airlines deal was found by Cheapflights users on 10/18. 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.
Mon 10/196:15 am -
2 stops28h 00m
Sat 10/2411:35 pm -
2 stops34h 40m
Deal found 10/18![United Airlines logo]()
$1,486
This United Airlines deal was found by Cheapflights users on 10/18. 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 10/208:35 am -
2 stops49h 40m
Sun 10/2512:25 am -
3 stops53h 40m
Deal found 10/18![United Airlines logo]()
$1,263
This United Airlines deal was found by Cheapflights users on 10/18. 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 10/203:12 pm -
2 stops43h 03m
Sat 10/2411:35 pm -
2 stops30h 30m
Deal found 10/18![United Airlines logo]()
$1,364
This United Airlines deal was found by Cheapflights users on 10/18. 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.
Wed 10/219:00 am -
2 stops25h 15m
Sun 10/2512:25 am -
3 stops53h 40m
Deal found 10/18![United Airlines logo]()
$1,256
This United Airlines deal was found by Cheapflights users on 10/18. 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.
Wed 10/216:15 am -
2 stops28h 00m
Sat 10/2411:35 pm -
2 stops31h 48m
Deal found 10/18![United Airlines logo]()
$1,357
This Cathay Pacific deal was found by Cheapflights users on 10/19. 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.
Wed 10/286:04 am -
2 stops40h 01m
Fri 11/1311:15 am -
2 stops24h 24m
Deal found 10/19![Multiple Airlines logo]()
$1,143
This KAYAK deal was found by Cheapflights users on 10/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
2 stops47h 15m
Mon 11/1611:15 am -
2 stops42h 28m
Deal found 10/15![Cathay Pacific logo]()
$1,117
This Cathay Pacific deal was found by Cheapflights users on 10/18. 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.
Mon 11/98:10 am -
2 stops36h 55m
Mon 11/167:25 pm -
2 stops38h 17m
Deal found 10/18![Multiple Airlines logo]()
$1,138
This Korean Air deal was found by Cheapflights users on 10/18. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:13 am -
2 stops38h 57m
Mon 11/1612:20 pm -
2 stops38h 03m
Deal found 10/18![Korean Air logo]()
$1,173
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Mon 11/307:30 am -
2 stops26h 45m
Sun 12/612:35 am -
2 stops33h 22m
Deal found 10/16![United Airlines logo]()
$1,177
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 October 20, 2026.
Search for one-way flight options from St. Louis to Hanoi. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
This Etihad Airways deal was found by Cheapflights users on 10/15. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/235:14 am -
2 stops35h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$542
This Delta deal was found by Cheapflights users on 10/20. 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.
Fri 4/26:45 am -
2 stops26h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Delta logo]()
$601
This Cathay Pacific deal was found by Cheapflights users on 10/19. 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.
Sun 11/18:10 am -
2 stops42h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Multiple Airlines logo]()
$611
This Cathay Pacific deal was found by Cheapflights users on 10/16. 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 4/27:23 am -
2 stops38h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Multiple Airlines logo]()
$612
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:04 am -
2 stops40h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Alaska Airlines logo]()
$621
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 12/27:58 pm -
3 stops50h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Multiple Airlines logo]()
$632
This Delta deal was found by Cheapflights users on 10/18. 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.
Sun 11/297:08 am -
2 stops25h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Delta logo]()
$644
This United Airlines deal was found by Cheapflights users on 10/18. 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 10/18![United Airlines logo]()
$668
This Kiwi.com deal was found by Cheapflights users on 10/18. 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.
Fri 12/47:58 pm -
3 stops48h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Multiple Airlines logo]()
$670
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 October 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,085 (Cathay Pacific) |
One-way from | $542 (Etihad Airways) |
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 October 20, 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
Tue 2/23
5:14 am-6:10 am
2 stops35h 56m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$542
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Fri 4/2
6:45 am-9:35 pm
2 stops26h 50m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$601
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Sun 11/1
8:10 am-3:45 pm
2 stops42h 35m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$611
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Fri 4/2
7:23 am-9:55 am
2 stops38h 32m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$612
Quickest round-trip
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Sun 11/29
7:08 am-9:45 pm
2 stops25h 37m
Hanoi Noibai
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$644
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
$668
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Wed 2/10
6:01 am-10:05 am
2 stops39h 04m
Hanoi Noibai
Tue 2/23
10:30 am-11:10 pm
2 stops25h 40m
$1,085
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Wed 2/10
6:01 am-10:05 am
2 stops39h 04m
Hanoi Noibai
Mon 2/22
7:25 pm-11:56 pm
2 stops41h 31m
$1,093
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Wed 1/27
6:01 am-10:05 am
2 stops39h 04m
Hanoi Noibai
Thu 2/11
7:25 pm-11:56 pm
2 stops41h 31m
$1,135
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Mon 11/9
8:10 am-10:05 am
2 stops36h 55m
Hanoi Noibai
Mon 11/16
7:25 pm-8:42 pm
2 stops38h 17m
$1,138
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 October.
| 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 |
- 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 October 20, 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.
Entertainment
7.8
Overall
8.3
Crew
8.7
Food
7.7
Comfort
8.2
Boarding
8.4
Reviews
1 / 20
4.0
OkayClark,Aug 2026
BDL - ORD
Entertainment
7.8
Overall
8.3
Crew
8.7
Food
7.7
Comfort
8.2
Boarding
8.4
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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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 October 20, 2026.
St. Louis and Hanoi flights
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Other flights from St. Louis
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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 October 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,013 | Average$1,266 | FlexibilityNo cancel fee | On-time79% |