STL - SIN

S$ 707 Find Cheap Flights from St. Louis to Singapore – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
S$ 1,401
Typical prices: S$ 1,520-S$ 2,030
Air Canada
Sat 27-10Sat 3-11
STL - SIN • 2 stops
Cheapest one-way flight
S$ 707
Typical prices: S$ 955-S$ 1,041
Multiple Airlines
Fri 9-2
STL - SIN • 2 stops
Direct flights
Not available
There are currently no direct flights between St. Louis and Singapore. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
October
Cheapest • 27% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg S$ 2,030 (return)
San Francisco (SFO)
Shortest trip • 22h 36m (one-way)
Insights
Insights
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We hope you enjoy your trip to Singapore!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Singapore (STL-SIN)

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

Recent return flight deals from St. Louis to Singapore

Tue, 27 Oct - Tue, 3 Nov
Air Canada Logo
16:05 - 07:00STL  Lambert-St Louis-SIN Singapore Changi
49h 55m2 stops Toronto Pearson Intl Vancouver Intl
Air Canada Logo
08:40 - 15:26SIN  Singapore Changi-STL Lambert-St Louis
44h 46m2 stops Vancouver Intl Toronto Pearson Intl
S$ 1,401Air Canada
Thu, 29 Oct - Thu, 5 Nov
Multiple Airlines Logo
13:40 - 07:00STL  Lambert-St Louis-SIN Singapore Changi
28h 20m2 stops Denver Intl Vancouver Intl
Multiple Airlines Logo
08:40 - 15:26SIN  Singapore Changi-STL Lambert-St Louis
44h 46m2 stops Vancouver Intl Toronto Pearson Intl
S$ 1,408Multiple Airlines
Tue, 29 Sep - Thu, 8 Oct
Qatar Airways Logo
06:29 - 15:45STL  Lambert-St Louis-SIN Singapore Changi
44h 16m2 stops Seattle/Tacoma Intl Doha Hamad Intl
Qatar Airways Logo
18:40 - 23:59SIN  Singapore Changi-STL Lambert-St Louis
42h 19m2 stops Doha Hamad Intl Seattle/Tacoma Intl
S$ 1,449Qatar Airways
Sun, 25 Oct - Sun, 1 Nov
Air Canada Logo
16:05 - 06:55STL  Lambert-St Louis-SIN Singapore Changi
49h 50m2 stops Toronto Pearson Intl Tokyo Haneda
Air Canada Logo
08:40 - 16:23SIN  Singapore Changi-STL Lambert-St Louis
44h 43m2 stops Vancouver Intl Toronto Pearson Intl
S$ 1,471Air Canada
Tue, 29 Sep - Tue, 6 Oct
Cathay Pacific Logo
11:01 - 05:30STL  Lambert-St Louis-SIN Singapore Changi
29h 29m2 stops Chicago O'Hare Intl Hong Kong Intl
Cathay Pacific Logo
01:45 - 21:59SIN  Singapore Changi-STL Lambert-St Louis
33h 14m2 stops Hong Kong Intl Dallas/Fort Worth
S$ 1,484Cathay Pacific
Tue, 29 Sep - Sun, 4 Oct
Multiple Airlines Logo
11:01 - 05:30STL  Lambert-St Louis-SIN Singapore Changi
29h 29m2 stops Chicago O'Hare Intl Hong Kong Intl
Multiple Airlines Logo
13:25 - 23:59SIN  Singapore Changi-STL Lambert-St Louis
47h 34m2 stops Hong Kong Intl Seattle/Tacoma Intl
S$ 1,520Multiple Airlines
Sun, 4 Oct - Sun, 11 Oct
Qatar Airways Logo
07:27 - 15:45STL  Lambert-St Louis-SIN Singapore Changi
43h 18m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
19:40 - 23:59SIN  Singapore Changi-STL Lambert-St Louis
41h 19m2 stops Doha Hamad Intl Seattle/Tacoma Intl
S$ 1,537Qatar Airways
Sun, 4 Oct - Sun, 11 Oct
Qatar Airways Logo
07:27 - 15:45STL  Lambert-St Louis-SIN Singapore Changi
43h 18m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
19:40 - 23:59SIN  Singapore Changi-STL Lambert-St Louis
41h 19m2 stops Doha Hamad Intl Seattle/Tacoma Intl
S$ 1,544Qatar Airways
Sun, 4 Oct - Sat, 10 Oct
Qatar Airways Logo
11:01 - 16:20STL  Lambert-St Louis-SIN Singapore Changi
40h 19m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
03:15 - 23:59SIN  Singapore Changi-STL Lambert-St Louis
33h 44m2 stops Doha Hamad Intl Seattle/Tacoma Intl
S$ 1,556Qatar Airways
Mon, 7 Dec - Sun, 20 Dec
Lufthansa Logo
13:18 - 06:50STL  Lambert-St Louis-SIN Singapore Changi
27h 32m2 stops Chicago O'Hare Intl Frankfurt am Main
Lufthansa Logo
23:55 - 23:38SIN  Singapore Changi-STL Lambert-St Louis
37h 43m2 stops Frankfurt am Main Chicago O'Hare Intl
S$ 1,592Lufthansa
Booking Insights

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

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

How much is a return flight from St. Louis to Singapore?

Return flights from St. Louis to Singapore start at S$ 1,401. Prices are below average for this route right now, with typical return fares ranging from S$ 1,520 to S$ 2,030. The lowest price found in the past 5 days was S$ 1,401 on Air Canada.

What's the cheapest day of the week to fly from St. Louis to Singapore?

Tuesday is the cheapest day of the week to fly from St. Louis to Singapore and is 9% cheaper than the average day. Sunday is the most expensive day with flight prices 92% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • October is the cheapest month to fly from St. Louis to Singapore at S$ 1,311 return.
  • April (S$ 2,821) and December (S$ 2,678) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 115% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for St. Louis to Singapore flights

Low season

March

Cheapest flight

S$ 707
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly (50% more expensive on average)
Flights from St. Louis to Singapore

When to book flights from St. Louis to Singapore

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

Your St. Louis to Singapore flight questions, answered

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

  • Which airports can I use when flying from St. Louis to Singapore?

    Flights from St. Louis to Singapore usually depart from Lambert-St Louis (STL) and arrive at Singapore Changi (SIN).

  • Which airports do connecting flights from St. Louis to Singapore pass through?

    Connecting flights from St. Louis to Singapore most commonly pass through:

    • San Francisco (SFO) – 83% of one-stop connections
    • Seattle/Tacoma Intl (SEA) – 17% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

  • Can I save money by using flexible dates for flights from St. Louis to Singapore?

    Yes. Being flexible with your travel dates can save you up to 53% on the St. Louis to Singapore route. Tuesday is the cheapest departure day at S$ 1,631 return on average, while Sunday is the most expensive at S$ 3,436, a difference of S$ 1,805. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Singapore?

    Some of the most popular sights in Singapore are Sentosa, Orchard Road, and Mustafa Centre. These are among the most viewed places in Singapore on KAYAK.

  • How long is a flight from St. Louis to Singapore?

    A direct flight from St. Louis to Singapore takes 0h 00m, covering 24,637 km.

  • Do I need a passport to fly from St. Louis to Singapore?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from St. Louis to Singapore looking right now?

    One-way fares from St. Louis to Singapore are currently lower than usual. Average one-way flight prices are about S$ 885, which is 9% below the typical average for this route.

  • How much time can I save by choosing a different stopover airport from St. Louis to Singapore?

    Flying via San Francisco (SFO) gives the shortest average 1-stop total travel time of 22h 36m, compared to 27h 36m via Seattle/Tacoma Intl (SEA).

  • What is the time difference between St. Louis and Singapore?

    Singapore is 13 hours ahead of St. Louis (Singapore Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at Singapore Changi Airport (SIN)?

    Singapore Changi Airport (SIN) hosts 5 major car hire companies, with daily rates starting from around S$ 74 for economy cars. Top options include:
    • Avis
    • Sixt
    • Thrifty
    • Hertz
    • Europcar

  • How much should I expect to pay for a St. Louis to Singapore flight?

    Return flights from St. Louis to Singapore range from S$ 1,520 to S$ 2,030, with an average of S$ 1,786 over the past 12 months. Anything below S$ 1,520 counts as a good deal.

Your guide to booking St. Louis to Singapore flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average S$ 1,631 – about S$ 1,805 less than Sunday (53% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Singapore trip for October. Fares historically average S$ 1,311 return in that month – typically S$ 1,511 less than the most expensive month, which is April (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Singapore Changi Airport.
    - Crowne Plaza Changi Airport by IHG
    - Changi Transit Hotel Terminal 1
    - The Haven by Jetquay

More options for your flight from St. Louis to Singapore

Complete your trip to Singapore with a hotel stay or car hire

Car rentals in Singapore
Hotels in Singapore