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1 adult
1 adult, Economy, 0 bags

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Everything you should know

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Best reviews • 8.3 score
Airline reviews
Airline reviews
When to travel
Cheapest • 33% price drop
Most popular
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Flight Deals

Cheap Flights to St. Louis

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

Recent return flight deals to St. Louis

Multiple Airlines Logo
SIN  Singapore Changi Airport-STL St. Louis Lambert Airport
24637 kmmulti-stop
Multiple Airlines Logo
STL  St. Louis Lambert Airport-SIN Singapore Changi Airport
24637 kmmulti-stop
Multiple Airlines
Multiple Airlines Logo
XSP  Singapore Seletar-STL St. Louis Lambert Airport
24633 kmmulti-stop
Multiple Airlines Logo
STL  St. Louis Lambert Airport-XSP Singapore Seletar
24633 kmmulti-stop
Multiple Airlines
Booking Insights

Price, demand, and travel trends for Singapore to St. Louis flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Singapore to St. Louis with more confidence.

How much is a flight to St. Louis?

A return flight to St. Louis costs S$ 1,741 on average, based on data over the past 12 months on KAYAK. Return fares from Singapore average S$ 1,741.

What is the cheapest time of day to fly to St. Louis?

Afternoon flights to St. Louis are the cheapest at S$ 1,523 return on average. Night flights are the most expensive at S$ 1,987.

What is a good deal for flights to St. Louis?

Flights under S$ 1,577 are considered a good deal. 25% of KAYAK users found return flights to St. Louis at or below these prices, with the lowest fares from:

  • Singapore S$ 1,577
.

Key details for flights to St. Louis

Low season

March

When to book flights to St. Louis

Are your dates flexible? Find out the best times to travel to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to St. Louis, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What is the difference between the most popular and the most frequent airline at St. Louis?

    United Airlines operates the most flights from Singapore to St. Louis at 0 per week, while Japan Airlines is the airline most often selected by KAYAK users searching for flights from Singapore to St. Louis. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

  • How far is Lambert-St Louis from St. Louis city centre?

    Lambert-St Louis is 21.1 km from St. Louis city centre.

  • How do I know if a flight to St. Louis is a good deal?

    A good deal on a flight to St. Louis is around S$ 1,577 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

Your guide to booking St. Louis flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to St. Louis, recent KAYAK data shows that stronger deals tend to be around S$ 1,577 return. If you see a fare below that threshold, it's a good deal – book before the price climbs back up.
  • If you can choose when to go, aim to travel to St. Louis in November. Return fares historically average S$ 1,161 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to midday to save up to S$ 464 per return. Midday flights to St. Louis average S$ 1,523 compared to S$ 1,987 for evening flights. See the time-of-day chart above for the full breakdown.

Reviews of the top airline flying to St. Louis

 
Need help choosing which airline to fly with to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10188 reviews
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

8.0 ExcellentTodd, Jul 2026
Read more United Airlines reviews

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airport terminal was outdated, flight was on a small jet with no wifi

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

Staff was generally seeming stressed out and was a bit rude and slow. Plane left late. Pilot was very well-spoken.

We boarded and buckled and then deplaned due to no pilot. Had to wait over 3 hours for a new pilot. Not weather related, just poor management.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

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