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. Visit our flight page for the latest deals!>/a>

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 travellers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

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 return ticket. You could then fly from St. Louis to Southeast Asia with an airline and back with another airline. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

Which airlines provide the cheapest flights from St. Louis to Southeast Asia?

In the past 3 days, the cheapest return tickets from St. Louis to Southeast Asia were found on United Airlines (S$ 1,549) and Air Canada (S$ 1,813).

S$ 1,549 CHEAP FLIGHTS from St. Louis to Southeast Asia

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

...and more

Travellers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Best Southeast Asia Flight Deals from St. Louis

Cheapest return prices found by our users on KAYAK in the last 72 hours

Singapore1 stopS$ 1,549

Cheap Flight Deals from St. Louis to Southeast Asia (STL-zzYJX)

Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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.

Round-trip

Last minute

Recent return flight deals from St. Louis to Southeast Asia

Recommended return flight deals departing in the coming months from the most popular airlines that fly from St. Louis to Southeast Asia.

Discover the best prices for you by selecting your travel dates on KAYAK.

Choose your dates

07:00 - 06:45STL-SIN

34h 45m1 stop

09:00 - 22:45SIN-STL

26h 45m1 stop

S$ 1,549United Airlines

Find Deal

Sun, 11 May - Wed, 21 May

07:00 - 06:45STL-SIN

34h 45m1 stop

09:00 - 23:52SIN-STL

27h 52m2 stops

S$ 1,554United Airlines

Find Deal

Sun, 11 May - Wed, 21 May

16:32 - 07:05STL-SIN

49h 33m2 stops

09:10 - 12:36SIN-STL

40h 26m2 stops

S$ 1,813Air Canada

Find Deal

Sat, 24 May - Sun, 1 Jun

17:29 - 18:25STL-SIN

35h 56m2 stops

21:35 - 22:57SIN-STL

38h 22m2 stops

S$ 1,817Finnair

Find Deal

Wed, 2 Jul - Wed, 16 Jul

06:52 - 05:30STL-SIN

33h 38m2 stops

01:50 - 18:33SIN-STL

29h 43m2 stops

S$ 2,066Cathay Pacific

Find Deal

Sun, 11 May - Tue, 20 May

13:30 - 07:05STL-SIN

28h 35m2 stops

22:50 - 12:36SIN-STL

50h 46m2 stops

S$ 2,313Air Canada

Find Deal

Fri, 16 May - Fri, 23 May

13:09 - 08:25STL-SIN

30h 16m2 stops

00:40 - 15:00SIN-STL

27h 20m2 stops

S$ 2,492

Find Deal

Fri, 16 May - Thu, 22 May

09:09 - 06:40STL-SIN

32h 31m2 stops

01:55 - 23:20SIN-STL

34h 25m2 stops

S$ 2,517

Find Deal

Sat, 26 Jul - Sat, 2 Aug

06:15 - 05:30STL-SIN

34h 15m2 stops

09:45 - 22:45SIN-STL

26h 00m2 stops

S$ 6,793Cathay Pacific

Find Deal

Thu, 1 May - Mon, 12 May

16:15 - 18:25STL-SIN

37h 10m2 stops

21:35 - 21:55SIN-STL

37h 20m2 stops

S$ 8,126Finnair

Find Deal

Sat, 24 May - Sun, 1 Jun

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.

Prices

Airlines

What is the cheapest time of day to fly to Southeast Asia?

The cheapest time of day to fly to Southeast Asia is generally in the morning, when retur flights cost S$ 1,695 on average. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is S$ 1,695.

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

The cheapest month for flights from St. Louis to Southeast Asia is November, when tickets cost S$ 1,701 (return) on average. On the other hand, the most expensive months are August and December, when the average cost of return tickets is S$ 2,617 and S$ 2,570 respectively.

Find deals

Low season	July
High season	December
Cheapest flight	S$ 1,549

Best time to beat the crowds but there is an average 19% increase in price.

Most popular time to fly (18% more expensive on average)

Flight from St. Louis to Singapore

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 travellers 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 return 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.

See more FAQs

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

St. Louis (STL)

Cabin class types available on flights to St. Louis

First Class flights from St. Louis to Southeast Asiafrom S$ 2,478

Business Class flights from St. Louis to Southeast Asia

Prem Econ Class flights from St. Louis to Southeast Asia

Economy class flights from St. Louis to Southeast Asiafrom S$ 301

S$ 1,549 Find Cheap Flights from St. Louis to Southeast Asia

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

Best Southeast Asia Flight Deals from St. Louis

Cheap Flight Deals from St. Louis to Southeast Asia (STL-zzYJX)

Recent return flight deals from St. Louis to Southeast Asia

Recent last minute flight deals from St. Louis to Southeast Asia

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.

What is the cheapest time of day to fly to Southeast Asia?

The cheapest time of day to fly to Southeast Asia is generally in the morning, when retur flights cost S$ 1,695 on average. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is S$ 1,695.

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

The cheapest month for flights from St. Louis to Southeast Asia is November, when tickets cost S$ 1,701 (return) on average. On the other hand, the most expensive months are August and December, when the average cost of return tickets is S$ 2,617 and S$ 2,570 respectively.

Which airlines provide the cheapest flights from St. Louis to Southeast Asia?

In the past 3 days, the cheapest return tickets from St. Louis to Southeast Asia were found on United Airlines (S$ 1,549) and Air Canada (S$ 1,813).

Good to know

Low season

High season

Cheapest flight

FAQs - booking Southeast Asia flights

How does KAYAK find such low prices 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?

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

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

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

Cabin class types available on flights to St. Louis

Cabin classes available on flights to St. Louis. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to Southeast Asia with a hotel stay or car hire

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Flights from domestic origins to St. Louis

Flights from all regions of St. Louis to Southeast Asia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Flights to popular cities in Southeast Asia