Cheap flights from St. Louis to Singapore from $1,087
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 Singapore departing on 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from St. Louis to Singapore
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How to get the cheapest flight ticket from St. Louis to Singapore
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 typical price of a round-trip flight between St. Louis and Singapore?
What is the cheapest month to fly to Singapore?
The month of September is, on average, the cheapest month to fly to Singapore from St. Louis, with most prices found around $1,094. If you aren’t able to travel to Singapore during the month of September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,309.
What is the cheapest day to depart on your flight to Singapore?
The cheapest day to depart from St. Louis to Singapore is on a Tuesday when prices can be found for as low as $1,370. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,691.
When to book flights from St. Louis to Singapore
Cheap St. Louis to Singapore (STL to SIN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Singapore
How far is Lambert-St Louis to Singapore Changi by plane?
Singapore Changi is 9530.1 mi away from Lambert-St Louis. In terms of flight time, this usually takes a little over 22h 55m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Singapore Changi Airport?
Prices for flights from Lambert-St Louis Airport to Singapore Changi Airport are updated daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Singapore Changi Airport?
As of June 2025, there is 1 operator available to choose from for flights from Lambert-St Louis Airport to Singapore Changi Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Singapore Changi Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Singapore Changi Airport.
What documentation or ID do you need to fly to Singapore Changi Airport?
The travel and health documents you'll need for your trip to Singapore Changi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Singapore Changi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Singapore?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Singapore is United Airlines (100% of total bookings).
Best airlines flying from St. Louis to Singapore
Compare and see reviews for airlines that fly from St. Louis to Singapore with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,094 | Free Cancellation | Rating 7.4 8,798 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Singapore?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Singapore for you.
Can I find flights from St. Louis to Singapore with flexible booking policies on momondo?
All flight searches from St. Louis to Singapore on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from St. Louis to Singapore?
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 Singapore.
I’m not ready to book a flight from St. Louis to Singapore right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Singapore, momondo offers a useful price alert feature which will track prices for flights to Singapore from St. Louis and alert you when they change.