$513+ Cheap flights from St. Louis (STL) to Hanoi (HAN)
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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HAN
Sep 7 — Sep 141
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 August 8, 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 August 8, 2026.
This Justfly.com deal was found by Cheapflights users on 8/7. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:32 am -
2 stops30h 23m
Mon 11/167:10 pm -
2 stops36h 07m
Deal found 8/7![Qatar Airways logo]()
$1,037
This oojo deal was found by Cheapflights users on 8/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:32 am -
2 stops33h 43m
Tue 9/227:30 pm -
2 stops40h 57m
Deal found 8/7![Qatar Airways logo]()
$1,070
This FlightHub deal was found by Cheapflights users on 8/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:01 am -
2 stops32h 14m
Sun 10/117:30 pm -
2 stops40h 39m
Deal found 8/7![Qatar Airways logo]()
$1,077
This oojo deal was found by Cheapflights users on 8/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:00 am -
2 stops26h 25m
Thu 11/2611:50 pm -
2 stops37h 09m
Deal found 8/6![Multiple Airlines logo]()
$1,078
This Justfly.com deal was found by Cheapflights users on 8/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:11 pm -
2 stops56h 09m
Thu 11/268:55 am -
2 stops52h 04m
Deal found 8/4![Multiple Airlines logo]()
$1,081
This FlightHub deal was found by Cheapflights users on 8/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:11 pm -
2 stops50h 44m
Mon 11/167:10 pm -
2 stops56h 05m
Deal found 8/3![Multiple Airlines logo]()
$1,086
This oojo deal was found by Cheapflights users on 8/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:24 am -
2 stops26h 06m
Wed 12/1611:55 pm -
2 stops36h 56m
Deal found 8/3![Japan Airlines logo]()
$1,149
This China Airlines deal was found by Cheapflights users on 8/5. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:15 pm -
2 stops38h 35m
Sat 9/265:50 pm -
2 stops41h 15m
Deal found 8/5![Multiple Airlines logo]()
$1,163
This FlightHub deal was found by Cheapflights users on 8/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/306:00 am -
2 stops35h 55m
Tue 12/157:10 pm -
2 stops41h 49m
Deal found 8/3![Multiple Airlines logo]()
$1,171
This Delta deal was found by Cheapflights users on 8/3. 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 11/297:18 pm -
2 stops37h 27m
Mon 12/1411:05 pm -
2 stops27h 18m
Deal found 8/3![Delta logo]()
$1,179
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 August 8, 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 August 8, 2026.
This FlightHub deal was found by Cheapflights users on 8/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:32 am -
2 stops30h 23m
Mon 11/167:10 pm -
2 stops36h 07m
Deal found 8/6![Qatar Airways logo]()
$1,037
This Justfly.com deal was found by Cheapflights users on 8/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:11 pm -
2 stops56h 09m
Thu 11/268:55 am -
2 stops52h 04m
Deal found 8/4![Multiple Airlines logo]()
$1,081
This Delta deal was found by Cheapflights users on 8/3. 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 11/297:18 pm -
2 stops37h 27m
Sun 12/1311:05 pm -
2 stops37h 51m
Deal found 8/3![Delta logo]()
$1,179
This Korean Air deal was found by Cheapflights users on 8/7. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:00 am -
2 stops27h 35m
Sun 10/411:10 pm -
2 stops28h 44m
Deal found 8/7![Korean Air logo]()
$1,185
This FlightHub deal was found by Cheapflights users on 8/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:00 am -
2 stops43h 55m
Fri 9/117:30 pm -
2 stops37h 14m
Deal found 8/7![Qatar Airways logo]()
$1,037
This FlightHub deal was found by Cheapflights users on 8/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:11 pm -
2 stops50h 44m
Mon 11/167:10 pm -
2 stops56h 05m
Deal found 8/4![Multiple Airlines logo]()
$1,086
This Delta deal was found by Cheapflights users on 8/3. 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.
Tue 12/15:37 pm -
2 stops28h 33m
Sun 12/1311:05 pm -
2 stops27h 18m
Deal found 8/3![Delta logo]()
$1,179
This Korean Air deal was found by Cheapflights users on 8/6. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
2 stops27h 35m
Mon 9/2111:10 pm -
2 stops36h 32m
Deal found 8/6![Korean Air logo]()
$1,185
This China Airlines deal was found by Cheapflights users on 8/6. 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.
Wed 11/118:25 am -
3 stops37h 10m
Thu 11/265:30 pm -
2 stops43h 45m
Deal found 8/6![Multiple Airlines logo]()
$1,151
This Delta deal was found by Cheapflights users on 8/3. 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 11/297:18 pm -
2 stops37h 27m
Mon 12/1411:05 pm -
2 stops27h 18m
Deal found 8/3![Delta logo]()
$1,179
This China Airlines deal was found by Cheapflights users on 8/5. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:15 pm -
2 stops38h 35m
Sat 9/265:50 pm -
2 stops41h 15m
Deal found 8/5![Multiple Airlines logo]()
$1,163
Last-minute flights from St. Louis to HanoiDiscover last-minute flight deals from St. Louis to Hanoi. Data last updated August 8, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Hanoi. Data last updated August 8, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 8/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:00 am -
2 stops43h 55m
Fri 9/117:30 pm -
2 stops37h 14m
Deal found 8/7![Qatar Airways logo]()
$1,037
This China Airlines deal was found by Cheapflights users on 8/7. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:25 am -
3 stops40h 05m
Fri 9/115:50 pm -
2 stops29h 50m
Deal found 8/7![Multiple Airlines logo]()
$1,303
This oojo deal was found by Cheapflights users on 8/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:32 am -
2 stops33h 43m
Tue 9/227:30 pm -
2 stops40h 57m
Deal found 8/7![Qatar Airways logo]()
$1,070
This EVA Air deal was found by Cheapflights users on 8/7. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:19 pm -
2 stops31h 46m
Tue 9/226:00 pm -
3 stops33h 38m
Deal found 8/7![Multiple Airlines logo]()
$1,351
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:35 am -
2 stops25h 40m
Fri 10/911:35 pm -
3 stops49h 05m
Deal found 8/7![United Airlines logo]()
$1,289
This Mytrip deal was found by Cheapflights users on 8/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:40 pm -
3 stops35h 20m
Thu 10/81:45 am -
3 stops28h 56m
Deal found 8/7![Multiple Airlines logo]()
$1,643
This Korean Air deal was found by Cheapflights users on 8/6. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
2 stops27h 35m
Mon 9/2111:10 pm -
2 stops36h 32m
Deal found 8/6![Korean Air logo]()
$1,185
This China Airlines deal was found by Cheapflights users on 8/5. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:15 pm -
2 stops38h 35m
Sat 9/265:50 pm -
2 stops41h 15m
Deal found 8/5![Multiple Airlines logo]()
$1,163
This FlightHub deal was found by Cheapflights users on 8/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:01 am -
2 stops32h 14m
Sun 10/117:30 pm -
2 stops40h 39m
Deal found 8/7![Qatar Airways logo]()
$1,077
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:00 am -
2 stops26h 15m
Sun 10/1111:35 pm -
3 stops49h 05m
Deal found 8/7![United Airlines logo]()
$1,282
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 August 8, 2026.
Search for one-way flight options from St. Louis to Hanoi. Find affordable one-way fares based on user searches. Data last updated August 8, 2026.
This oojo deal was found by Cheapflights users on 8/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:00 am -
2 stops26h 25m
Deal found 8/5![Multiple Airlines logo]()
$513
This FlightHub deal was found by Cheapflights users on 8/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:06 pm -
2 stops36h 49m
Deal found 8/7![Qatar Airways logo]()
$579
This Air Canada deal was found by Cheapflights users on 8/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:55 am -
2 stops26h 50m
Deal found 8/7![Multiple Airlines logo]()
$592
This BusinessClass deal was found by Cheapflights users on 8/3. 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.
Fri 10/97:02 am -
2 stops26h 58m
Deal found 8/3![Multiple Airlines logo]()
$615
This Malaysia Airlines deal was found by Cheapflights users on 8/7. 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 10/96:04 am -
3 stops42h 11m
Deal found 8/7![Malaysia Airlines logo]()
$1,943
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 August 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,037 (Justfly.com) |
One-way from | $513 (oojo) |
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 2,558,603 searches. Data last updated August 8, 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 11/9
11:32 am-6:55 am
2 stops30h 23m
Hanoi Noibai
Mon 11/16
7:10 pm-6:17 pm
2 stops36h 07m
$1,037
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Thu 8/27
6:00 am-1:55 pm
2 stops43h 55m
Hanoi Noibai
Fri 9/11
7:30 pm-8:44 pm
2 stops37h 14m
$1,037
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Thu 11/12
3:11 pm-12:20 pm
2 stops56h 09m
Hanoi Noibai
Thu 11/26
8:55 am-11:59 pm
2 stops52h 04m
$1,081
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Mon 11/9
3:11 pm-6:55 am
2 stops50h 44m
Hanoi Noibai
Mon 11/16
7:10 pm-2:15 pm
2 stops56h 05m
$1,086
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Wed 11/11
8:25 am-10:35 am
3 stops37h 10m
Hanoi Noibai
Thu 11/26
5:30 pm-12:15 am
2 stops43h 45m
$1,151
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Sat 9/19
2:15 pm-4:50 pm
2 stops38h 35m
Hanoi Noibai
Sat 9/26
5:50 pm-11:05 pm
2 stops41h 15m
$1,163
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Sun 11/29
7:18 pm-9:45 pm
2 stops37h 27m
Hanoi Noibai
Sun 12/13
11:05 pm-11:56 pm
2 stops37h 51m
$1,179
Quickest round-trip
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Tue 12/1
5:37 pm-11:10 am
2 stops28h 33m
Hanoi Noibai
Sun 12/13
11:05 pm-1:23 pm
2 stops27h 18m
$1,179
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Sun 11/29
7:18 pm-9:45 pm
2 stops37h 27m
Hanoi Noibai
Mon 12/14
11:05 pm-1:23 pm
2 stops27h 18m
$1,179
St. LouisHanoi
STL Lambert-St Louis - HAN Hanoi Noibai
STLHAN
Lambert-St Louis
Wed 9/30
6:00 am-9:35 pm
2 stops27h 35m
Hanoi Noibai
Sun 10/4
11:10 pm-3:54 pm
2 stops28h 44m
$1,185
Showing 1-10 of 16 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 August.
| 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.
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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