Cheap flights from St. Louis to Hanoi from $1,007
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Hanoi departing on 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from St. Louis to Hanoi
Cheap round-trip flights
Cheap one-way flights
United Airlines flights from St. Louis to Hanoi
Our best United Airlines deals on St. Louis to Hanoi flight tickets
See travel insights to Hanoi from
How to get the cheapest flight ticket from St. Louis to Hanoi
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Hanoi?
According to our data, Sunday is the cheapest day to fly to Hanoi from St. Louis. The lowest ticket price found for a Sunday departure recently was $1,292. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Hanoi on Monday is $2,429.
What is the cheapest time of day to depart on your flight to Hanoi?
Our most recent data shows that the best time of day to fly to Hanoi is at noon. Flights from St. Louis to Hanoi during this time can be as low as $1,510. Try not to purchase tickets in the morning because they tend to be around $2,340. Of course, these prices can vary depending on the time of year and what airport you fly to.
When to book flights from St. Louis to Hanoi
Cheap St. Louis to Hanoi (STL to HAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Hanoi
How far is Lambert-St Louis to Hanoi Noibai by plane?
There are 8181.5 mi between Lambert-St Louis and Hanoi Noibai. By plane, this route typically takes 26h 46m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Hanoi Noibai Airport?
Prices for flights from Lambert-St Louis Airport to Hanoi Noibai Airport refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Hanoi Noibai Airport?
There is 1 operator available for flights from Lambert-St Louis Airport to Hanoi Noibai Airport as of February 2025.
How old do you have to be to fly from Lambert-St Louis Airport to Hanoi Noibai Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Hanoi Noibai Airport.
What documentation or ID do you need to fly to Hanoi Noibai Airport?
The necessary travel and health documents for your Hanoi Noibai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Hanoi?
Based on momondo bookings for flights between St. Louis and Hanoi, the leading airline is Delta, making up 100% of the total bookings.
Best airlines flying from St. Louis to Hanoi
Compare and see reviews for airlines that fly from St. Louis to Hanoi with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,294 | Free Cancellation | Rating 8.0 8,203 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Hanoi?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Hanoi. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from St. Louis to Hanoi with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Hanoi from St. Louis with this policy.
How can momondo help me find flights from St. Louis to Hanoi?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Hanoi.
I’m not ready to book a flight from St. Louis to Hanoi right now. Can momondo alert me if prices change?
Yes. momondo can track prices for St. Louis to Hanoi flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.