$495 Find Cheap Flights from St. Louis to Southeast Asia - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Southeast Asia departing on 10/21. 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.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from St. Louis to Southeast Asia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Manila
Manila2 stops$950
Ho Chi Minh City
Ho Chi Minh City2 stops$1,086
Singapore
Singapore3 stops$1,129
Denpasar
Denpasar2 stops$1,261
Hanoi
Hanoi2 stops$1,086
Phuket City
Phuket City2 stops$1,067
Cebu City
Cebu City2 stops$1,096
Da Nang
Da Nang2 stops$1,206
Phnom Penh
Phnom Penh2 stops$1,164
Chiang Mai
Chiang Mai2 stops$1,235
Angeles City
Angeles City2 stops$1,062
Vientiane
Vientiane3 stops$1,602
Manila
Manila2 stops$950
Ho Chi Minh City
Ho Chi Minh City2 stops$1,086
Singapore
Singapore3 stops$1,129
Denpasar
Denpasar2 stops$1,261
Hanoi
Hanoi2 stops$1,086
Phuket City
Phuket City2 stops$1,067
Cebu City
Cebu City2 stops$1,096
Da Nang
Da Nang2 stops$1,206
Phnom Penh
Phnom Penh2 stops$1,164
Chiang Mai
Chiang Mai2 stops$1,235
Angeles City
Angeles City2 stops$1,062
Vientiane
Vientiane3 stops$1,602

Book Cheap St. Louis to Southeast Asia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Southeast Asia

Mon, Sep 14 - Fri, Sep 18
Multiple Airlines Logo
6:29 am - 10:35 pm-
27h 06m
Multiple Airlines Logo
12:05 pm - 11:59 pm-
24h 54m
$950Multiple Airlines
Thu, Sep 10 - Wed, Sep 16
Multiple Airlines Logo
6:29 am - 10:35 pm-
27h 06m
Multiple Airlines Logo
11:55 pm - 11:59 pm-
37h 04m
$950Multiple Airlines
Tue, Jan 26 - Wed, Feb 24
United Airlines Logo
6:30 am - 10:10 pm-
25h 40m
United Airlines Logo
9:30 am - 11:09 pm-
27h 39m
$1,096United Airlines
Mon, Jan 25 - Sun, Feb 14
United Airlines Logo
6:15 am - 10:10 pm-
25h 55m
United Airlines Logo
9:30 am - 9:13 pm-
25h 43m
$1,096United Airlines
Sun, Nov 1 - Sun, Nov 15
Cathay Pacific Logo
11:32 am - 12:20 am-
22h 48m
Cathay Pacific Logo
12:35 pm - 8:19 pm-
21h 44m
$1,114Cathay Pacific
Wed, Aug 26 - Tue, Sep 1
Cathay Pacific Logo
9:32 am - 12:15 am-
25h 43m
Cathay Pacific Logo
12:30 pm - 11:42 pm-
24h 12m
$1,114Cathay Pacific
Wed, Nov 18 - Fri, Dec 4
Delta Logo
6:40 am - 10:25 pm-
26h 45m
Delta Logo
2:05 pm - 7:59 pm-
42h 54m
$1,141Delta
Mon, Dec 7 - Mon, Jan 18
Delta Logo
7:10 am - 11:20 pm-
27h 10m
Delta Logo
8:00 am - 11:18 pm-
28h 18m
$1,141Delta
Wed, Dec 2 - Wed, Dec 16
Japan Airlines Logo
7:29 am - 10:30 pm-
26h 01m
Japan Airlines Logo
11:55 pm - 11:51 pm-
36h 56m
$1,147Japan Airlines
Tue, Dec 1 - Wed, Dec 16
Japan Airlines Logo
7:24 am - 10:30 pm-
26h 06m
Japan Airlines Logo
11:55 pm - 11:51 pm-
36h 56m
$1,149Japan Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Southeast Asia flights

Get data-powered insights and trends into flights from St. Louis to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from St. Louis to Southeast Asia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $454, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from St. Louis to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Southeast Asia is November, when tickets cost $1,095 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,664 and $1,644 respectively.

How far in advance should I book a flight from St. Louis to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Southeast Asia, you should book around 2 weeks before departure, which saves you about 13% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low season

September

Cheapest flight

$495
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from St. Louis to Manila

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from St. Louis to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Southeast Asia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports