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St. Louis Lambert International Airport to Singapore Changi Airport flight

Explore the cheapest one-way and round-trip flights from St. Louis Lambert International Airport to Singapore Changi Airport over the next 90 days, with one-way fares from S$ 902 and round-trip from S$ 1,669. Based on Trip.com's latest 7-day flight data.

    • STL 19:05
      22h 55m
      1 stop
      SIN 07:00
      St. Louis - Singapore | Thu, Nov 19 | United Airlines
      SIN 22:20
      33h 45m
      1 stop
      STL 18:05
      Singapore - St. Louis | Thu, Nov 26 | United Airlines
      S$ 1,669 S$ 1,855
      10% off
      10% off
      S$ 1,855 S$ 1,669
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Mon, Nov 30 | United Airlines
      SIN 10:10
      21h 55m
      1 stop
      STL 18:05
      Singapore - St. Louis | Mon, Dec 7 | United Airlines
      S$ 1,669 S$ 1,855
      10% off
      10% off
      S$ 1,855 S$ 1,669
    • STL 19:05
      22h 55m
      1 stop
      SIN 08:00
      St. Louis - Singapore | Sat, Dec 5 | United Airlines
      SIN 10:10
      21h 55m
      1 stop
      STL 18:05
      Singapore - St. Louis | Sat, Dec 12 | United Airlines
      S$ 1,669 S$ 1,855
      10% off
      10% off
      S$ 1,855 S$ 1,669
    • STL 19:05
      22h 55m
      1 stop
      SIN 08:00
      St. Louis - Singapore | Fri, Dec 4 | United Airlines
      SIN 10:10
      21h 55m
      1 stop
      STL 18:05
      Singapore - St. Louis | Fri, Dec 11 | United Airlines
      S$ 1,669
      10% off
      S$ 1,855 S$ 1,669
    • STL 07:08
      22h 27m
      1 stop
      SIN 18:35
      St. Louis - Singapore | Sun, Nov 1 | United Airlines
      SIN 08:45
      22h 58m
      1 stop
      STL 18:43
      Singapore - St. Louis | Sun, Nov 8 | United Airlines
      S$ 1,669
      10% off
      S$ 1,855 S$ 1,669
    • STL 07:08
      22h 27m
      1 stop
      SIN 18:35
      St. Louis - Singapore | Mon, Nov 2 | United Airlines
      SIN 20:35
      35h 8m
      1 stop
      STL 18:43
      Singapore - St. Louis | Mon, Nov 9 | United Airlines
      S$ 1,669
      10% off
      S$ 1,855 S$ 1,669
    • STL 07:08
      34h 7m
      1 stop
      SIN 06:15
      St. Louis - Singapore | Fri, Nov 6 | United Airlines
      SIN 10:10
      25h 5m
      1 stop
      STL 22:15
      Singapore - St. Louis | Fri, Nov 13 | United Airlines
      S$ 1,669
      10% off
      S$ 1,855 S$ 1,669
    • STL 07:08
      22h 27m
      1 stop
      SIN 18:35
      St. Louis - Singapore | Tue, Nov 3 | United Airlines
      SIN 20:35
      35h 8m
      1 stop
      STL 18:43
      Singapore - St. Louis | Tue, Nov 10 | United Airlines
      S$ 1,669
      10% off
      S$ 1,855 S$ 1,669
    • STL 07:08
      22h 27m
      1 stop
      SIN 18:35
      St. Louis - Singapore | Sat, Nov 7 | United Airlines
      SIN 22:20
      32h 45m
      1 stop
      STL 18:05
      Singapore - St. Louis | Sat, Nov 14 | United Airlines
      S$ 1,669
      10% off
      S$ 1,855 S$ 1,669
    • STL 13:00
      17h 25m
      1 stop
      SIN 14:00
      St. Louis - Singapore | Mon, Nov 2 | Normal Airline
      SIN 15:00
      6h
      Direct
      STL 16:00
      Singapore - St. Louis | Wed, Nov 4 | Normal Airline
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    • Cheapest
      STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Wed, Nov 4 | United Airlines
      S$ 902 S$ 1,584
      43% off
      43% off
      S$ 1,584 S$ 902
    • Cheapest
      STL 19:05
      35h 10m
      1 stop
      SIN 20:15
      St. Louis - Singapore | Thu, Nov 5 | United Airlines
      S$ 902 S$ 1,584
      43% off
      43% off
      S$ 1,584 S$ 902
    • Cheapest
      STL 19:05
      35h 10m
      1 stop
      SIN 20:15
      St. Louis - Singapore | Fri, Nov 6 | United Airlines
      S$ 902 S$ 1,584
      43% off
      43% off
      S$ 1,584 S$ 902
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Sun, Nov 1 | United Airlines
      S$ 943
      40% off
      S$ 1,584 S$ 943
    • STL 15:40
      25h 10m
      1 stop
      SIN 06:50
      St. Louis - Singapore | Wed, Nov 4 | Lufthansa
      S$ 1,115
      30% off
      S$ 1,584 S$ 1,115
    • STL 15:40
      35h 25m
      1 stop
      SIN 17:05
      St. Louis - Singapore | Sun, Nov 1 | Lufthansa
      S$ 1,132
      28% off
      S$ 1,584 S$ 1,132
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Wed, Nov 18 | United Airlines
      S$ 1,232
      22% off
      S$ 1,584 S$ 1,232
    • STL 15:40
      35h 25m
      1 stop
      SIN 17:05
      St. Louis - Singapore | Fri, Nov 6 | Lufthansa
      S$ 1,254
      21% off
      S$ 1,584 S$ 1,254
    • STL 15:40
      35h 25m
      1 stop
      SIN 17:05
      St. Louis - Singapore | Fri, Nov 13 | Lufthansa
      S$ 1,267
      20% off
      S$ 1,584 S$ 1,267
    • STL 13:00
      17h 25m
      1 stop
      SIN 14:00
      St. Louis - Singapore | Mon, Nov 2 | Normal Airline
      Find more flights
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    • STL 18:05
      24h 55m
      2 stops
      SIN 09:00
      St. Louis - Singapore | Fri, Dec 11 | Air France
      S$ 1,794 S$ 1,994
      10% off
      10% off
      S$ 1,994 S$ 1,794
    • STL 18:05
      24h 55m
      2 stops
      SIN 09:00
      St. Louis - Singapore | Sun, Dec 13 | Air France
      S$ 1,794 S$ 1,994
      10% off
      10% off
      S$ 1,994 S$ 1,794
    • STL 15:40
      25h 10m
      1 stop
      SIN 06:50
      St. Louis - Singapore | Wed, Nov 4 | Lufthansa
      S$ 1,115 S$ 1,584
      30% off
      30% off
      S$ 1,584 S$ 1,115
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Wed, Nov 4 | United Airlines
      S$ 902
      43% off
      S$ 1,584 S$ 902
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Sun, Nov 1 | United Airlines
      S$ 943
      40% off
      S$ 1,584 S$ 943
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Wed, Nov 18 | United Airlines
      S$ 1,232
      22% off
      S$ 1,584 S$ 1,232
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Mon, Nov 2 | United Airlines
      S$ 1,275
      20% off
      S$ 1,584 S$ 1,275
    • STL 19:05
      35h 10m
      1 stop
      SIN 20:15
      St. Louis - Singapore | Thu, Nov 5 | United Airlines
      S$ 902
      43% off
      S$ 1,584 S$ 902
    • STL 19:05
      35h 10m
      1 stop
      SIN 20:15
      St. Louis - Singapore | Fri, Nov 6 | United Airlines
      S$ 902
      43% off
      S$ 1,584 S$ 902
    • STL 13:00
      17h 25m
      1 stop
      SIN 14:00
      St. Louis - Singapore | Mon, Nov 2 | Normal Airline
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Which airline offers the cheapest flights from St. Louis Lambert International Airport to Singapore Changi Airport?

The cheapest airline flying from St. Louis Lambert International Airport to Singapore Changi Airport is Qatar Airways (from S$ 825) among 9 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Qatar Airways
From S$ 825
United Airlines
From S$ 902
All Nippon Airways
From S$ 987
Korean Air
From S$ 994
American Airlines
From S$ 1,037
Lufthansa
From S$ 1,107
Turkish Airlines
From S$ 1,111
Alaska Airlines
From S$ 1,611
Finnair
From S$ 1,651

Find more flights and airlines

What is the flight schedule from St. Louis Lambert International Airport to Singapore Changi Airport?

Check the schedule for flights from St. Louis to Singapore and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. LH449

    St. Louis Lambert International Airport

    15:40

    STL

    8h 50m

    Direct

    07:30

    FRA

    - - T - T - S
    Search

  2. LH9762

    Frankfurt Airport

    11:25

    FRA

    12h 25m

    Direct

    06:50

    SIN

    S M T W T F S

  3. UA2414

    St. Louis Lambert International Airport

    07:30

    STL

    1h 30m

    Direct

    09:00

    ORD

    S M T W T F S
    Search

  4. KE038

    O'Hare International Airport

    12:10

    ORD

    15h 5m

    Direct

    17:15

    ICN

    S M T W T F S

  5. KE645

    Incheon International Airport

    18:35

    ICN

    6h 40m

    Direct

    00:15

    SIN

    S M T W T F S

  6. LH8923

    St. Louis Lambert International Airport

    13:08

    STL

    1h 31m

    Direct

    14:39

    ORD

    S M T W T F S
    Search

  7. LH431

    O'Hare International Airport

    16:20

    ORD

    8h 10m

    Direct

    07:30

    FRA

    S M T W T F S

  8. LH9762

    Frankfurt Airport

    11:25

    FRA

    12h 25m

    Direct

    06:50

    SIN

    S M T W T F S

  9. KE3735

    St. Louis Lambert International Airport

    06:00

    STL

    1h 40m

    Direct

    08:40

    ATL

    S M T W T F S
    Search

  10. KE034

    Hartsfield–Jackson Atlanta International Airport

    10:45

    ATL

    15h 55m

    Direct

    16:40

    ICN

    S M T W T F S

  11. KE645

    Incheon International Airport

    18:35

    ICN

    6h 40m

    Direct

    00:15

    SIN

    S M T W T F S

  12. TK9564

    St. Louis Lambert International Airport

    07:29

    STL

    1h 31m

    Direct

    09:00

    ORD

    S M T W T F S
    Search

  13. TK186

    O'Hare International Airport

    11:45

    ORD

    10h 25m

    Direct

    07:10

    IST

    S M T W T F S

  14. TK022

    Istanbul Airport

    15:20

    IST

    10h 30m

    Direct

    06:50

    SIN

    S - T W T F -

  15. NH7589

    St. Louis Lambert International Airport

    08:05

    STL

    1h 40m

    Direct

    09:45

    ORD

    S M T W T F S
    Search

  16. NH111

    O'Hare International Airport

    17:45

    ORD

    12h 30m

    Direct

    21:15

    HND

    S M T W T F S

  17. NH843

    Haneda Airport

    00:25

    HND

    7h 30m

    Direct

    06:55

    SIN

    S M T W T F S

  18. UA1257

    St. Louis Lambert International Airport

    08:00

    STL

    4h 36m

    Direct

    10:36

    SFO

    S M T W T F S
    Search

  19. UA001

    San Francisco International Airport

    22:40

    SFO

    15h 35m

    Direct

    06:15

    SIN

    S M T W T F S

  20. UA214

    St. Louis Lambert International Airport

    19:05

    STL

    4h 36m

    Direct

    21:41

    SFO

    - - - W T F S
    Search

  21. UA029

    San Francisco International Airport

    10:50

    SFO

    15h 45m

    Direct

    18:35

    SIN

    S M T W T F S

  22. LH449

    St. Louis Lambert International Airport

    15:40

    STL

    8h 50m

    Direct

    07:30

    FRA

    - - T - T - S
    Search

  23. LH780

    Frankfurt Airport

    21:40

    FRA

    12h 25m

    Direct

    17:05

    SIN

    S M T W T F S

  24. QR8886

    St. Louis Lambert International Airport

    06:00

    STL

    4h 42m

    Direct

    08:42

    SEA

    S - T - T F S
    Search

  25. QR720

    Seattle-Tacoma International Airport

    16:25

    SEA

    14h 35m

    Direct

    17:00

    DOH

    S - T - T F S

  26. QR942

    Hamad International Airport

    20:00

    DOH

    7h 50m

    Direct

    08:50

    SIN

    S M T W T F S
Find more flights and airlines

About St. Louis Lambert International Airport and Singapore Changi Airport

Learn about St. Louis Lambert International Airport (STL) and Singapore Changi Airport (SIN) — including location, terminals, transportation, and travel tips.

Flight distance 15,337.23km
Cheapest one-way ticket price S$ 902
Cheapest return ticket price S$ 1,669

FAQs for St. Louis Lambert International Airport to Singapore Changi Airport Flights

  • What is the transportation method from the main airport to downtown in Singapore?

    • The distance from Singapore Changi Airport to downtown is about 17km, by taxi about 30 minutes.
    • The distance from Seletar Airport to downtown is about 15km, by taxi about 30 minutes.
  • One-way flights from St. Louis Lambert International Airport to Singapore Changi Airport currently start from S$ 902, and round-trip fares start from S$ 1,669. The current lowest fare is a United Airlines flight departing on Wed, Nov 4; prices may vary depending on availability.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from St. Louis Lambert International Airport to Singapore Changi Airport is S$ 1,652. Prices may vary depending on the departure date, airline, and availability.
  • Enter St. Louis Lambert International Airport and Singapore Changi Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Popular Destinations & Recommendations

Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.