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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 PHP 44,962 and round-trip from PHP 83,219. Based on Trip.com's latest 7-day flight data.

    • Cheapest
      STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Wed, Nov 4 | United Airlines
      PHP 44,962 PHP 94,389
      52% off
      52% off
      PHP 94,389 PHP 44,962
    • Cheapest
      STL 19:05
      35h 10m
      1 stop
      SIN 20:15
      St. Louis - Singapore | Thu, Nov 5 | United Airlines
      PHP 44,962 PHP 94,389
      52% off
      52% off
      PHP 94,389 PHP 44,962
    • Cheapest
      STL 19:05
      35h 10m
      1 stop
      SIN 20:15
      St. Louis - Singapore | Fri, Nov 6 | United Airlines
      PHP 44,962 PHP 94,389
      52% off
      52% off
      PHP 94,389 PHP 44,962
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Sun, Nov 1 | United Airlines
      PHP 47,022
      50% off
      PHP 94,389 PHP 47,022
    • STL 15:40
      25h 10m
      1 stop
      SIN 06:50
      St. Louis - Singapore | Wed, Nov 4 | Lufthansa
      PHP 55,614
      41% off
      PHP 94,389 PHP 55,614
    • STL 15:40
      35h 25m
      1 stop
      SIN 17:05
      St. Louis - Singapore | Sun, Nov 1 | Lufthansa
      PHP 56,447
      40% off
      PHP 94,389 PHP 56,447
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Wed, Nov 18 | United Airlines
      PHP 61,428
      35% off
      PHP 94,389 PHP 61,428
    • STL 15:40
      35h 25m
      1 stop
      SIN 17:05
      St. Louis - Singapore | Fri, Nov 6 | Lufthansa
      PHP 62,510
      34% off
      PHP 94,389 PHP 62,510
    • STL 15:40
      35h 25m
      1 stop
      SIN 17:05
      St. Louis - Singapore | Fri, Nov 13 | Lufthansa
      PHP 63,171
      33% off
      PHP 94,389 PHP 63,171
    • STL 13:00
      17h 25m
      1 stop
      SIN 14:00
      St. Louis - Singapore | Sun, Nov 1 | Normal Airline
      More cheap flights
      More cheap flights
    • STL 19:05
      22h 55m
      1 stop
      SIN 07:00
      St. Louis - Singapore | Sat, Oct 31 | United Airlines
      SIN 22:20
      33h 45m
      1 stop
      STL 18:05
      Singapore - St. Louis | Sat, Nov 7 | United Airlines
      PHP 83,219 PHP 134,021
      38% off
      38% off
      PHP 134,021 PHP 83,219
    • STL 19:05
      22h 55m
      1 stop
      SIN 08:00
      St. Louis - Singapore | Mon, Nov 16 | United Airlines
      SIN 10:10
      21h 55m
      1 stop
      STL 18:05
      Singapore - St. Louis | Mon, Nov 23 | United Airlines
      PHP 83,219 PHP 134,021
      38% off
      38% off
      PHP 134,021 PHP 83,219
    • STL 19:05
      22h 55m
      1 stop
      SIN 08:00
      St. Louis - Singapore | Sun, Nov 15 | United Airlines
      SIN 10:10
      21h 55m
      1 stop
      STL 18:05
      Singapore - St. Louis | Sun, Nov 22 | United Airlines
      PHP 83,219 PHP 134,021
      38% off
      38% off
      PHP 134,021 PHP 83,219
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Sun, Nov 1 | United Airlines
      SIN 10:10
      21h 55m
      1 stop
      STL 18:05
      Singapore - St. Louis | Sun, Nov 8 | United Airlines
      PHP 83,219
      38% off
      PHP 134,021 PHP 83,219
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Mon, Nov 2 | United Airlines
      SIN 10:10
      21h 55m
      1 stop
      STL 18:05
      Singapore - St. Louis | Mon, Nov 9 | United Airlines
      PHP 83,219
      38% off
      PHP 134,021 PHP 83,219
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Tue, Nov 3 | United Airlines
      SIN 22:20
      33h 45m
      1 stop
      STL 18:05
      Singapore - St. Louis | Tue, Nov 10 | United Airlines
      PHP 83,219
      38% off
      PHP 134,021 PHP 83,219
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Wed, Nov 4 | United Airlines
      SIN 22:20
      33h 45m
      1 stop
      STL 18:05
      Singapore - St. Louis | Wed, Nov 11 | United Airlines
      PHP 83,219
      38% off
      PHP 134,021 PHP 83,219
    • STL 19:05
      22h 55m
      1 stop
      SIN 08:00
      St. Louis - Singapore | Mon, Nov 9 | United Airlines
      SIN 22:20
      33h 45m
      1 stop
      STL 18:05
      Singapore - St. Louis | Mon, Nov 16 | United Airlines
      PHP 83,219
      38% off
      PHP 134,021 PHP 83,219
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Sun, Nov 8 | United Airlines
      SIN 10:10
      26h 5m
      1 stop
      STL 22:15
      Singapore - St. Louis | Sun, Nov 15 | United Airlines
      PHP 83,219
      38% off
      PHP 134,021 PHP 83,219
    • STL 13:00
      17h 25m
      1 stop
      SIN 14:00
      St. Louis - Singapore | Sun, Nov 1 | Normal Airline
      SIN 15:00
      6h
      Nonstop
      STL 16:00
      Singapore - St. Louis | Tue, Nov 3 | Normal Airline
      More cheap flights
      More cheap flights
    • STL 18:05
      24h 55m
      2 stops
      SIN 09:00
      St. Louis - Singapore | Fri, Dec 11 | Air France
      PHP 89,445 PHP 124,230
      28% off
      28% off
      PHP 124,230 PHP 89,445
    • STL 18:05
      24h 55m
      2 stops
      SIN 09:00
      St. Louis - Singapore | Sun, Dec 13 | Air France
      PHP 89,445 PHP 124,230
      28% off
      28% off
      PHP 124,230 PHP 89,445
    • STL 15:40
      25h 10m
      1 stop
      SIN 06:50
      St. Louis - Singapore | Wed, Nov 4 | Lufthansa
      PHP 55,614 PHP 94,389
      41% off
      41% off
      PHP 94,389 PHP 55,614
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Wed, Nov 4 | United Airlines
      PHP 44,962
      52% off
      PHP 94,389 PHP 44,962
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Sun, Nov 1 | United Airlines
      PHP 47,022
      50% off
      PHP 94,389 PHP 47,022
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Wed, Nov 18 | United Airlines
      PHP 61,428
      35% off
      PHP 94,389 PHP 61,428
    • STL 08:00
      34h
      1 stop
      SIN 08:00
      St. Louis - Singapore | Mon, Nov 2 | United Airlines
      PHP 63,583
      33% off
      PHP 94,389 PHP 63,583
    • STL 19:05
      35h 10m
      1 stop
      SIN 20:15
      St. Louis - Singapore | Thu, Nov 5 | United Airlines
      PHP 44,962
      52% off
      PHP 94,389 PHP 44,962
    • STL 19:05
      35h 10m
      1 stop
      SIN 20:15
      St. Louis - Singapore | Fri, Nov 6 | United Airlines
      PHP 44,962
      52% off
      PHP 94,389 PHP 44,962
    • STL 13:00
      17h 25m
      1 stop
      SIN 14:00
      St. Louis - Singapore | Sun, Nov 1 | Normal Airline
      More cheap flights
      More cheap flights

Displayed flight fares from St. Louis to Singapore are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

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 PHP 41,140) among 9 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Qatar Airways
From PHP 41,140
American Airlines
From PHP 44,838
United Airlines
From PHP 44,962
Delta Air Lines
From PHP 46,773
All Nippon Airways
From PHP 49,215
Korean Air
From PHP 49,569
Lufthansa
From PHP 55,211
Turkish Airlines
From PHP 55,384
Alaska Airlines
From PHP 80,326

Find more flights and airlines

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

Check on the flight schedule from St. Louis to Singapore to find the flight that matches your travel plan.

Flight info.
Departure
Arrival
Weekly Schedule

  1. LH449

    St. Louis Lambert International Airport

    15:40

    STL

    8h 50m

    Nonstop

    07:30

    FRA

    - - T - T - S
    Search

  2. LH9762

    Frankfurt Airport

    11:25

    FRA

    12h 25m

    Nonstop

    06:50

    SIN

    S M T W T F S

  3. UA2414

    St. Louis Lambert International Airport

    07:30

    STL

    1h 30m

    Nonstop

    09:00

    ORD

    S M T W T F S
    Search

  4. KE038

    O'Hare International Airport

    12:10

    ORD

    14h 40m

    Nonstop

    16:50

    ICN

    S M T W T F S

  5. KE645

    Incheon International Airport

    18:40

    ICN

    6h 15m

    Nonstop

    23:55

    SIN

    S M T W T F S

  6. LH8923

    St. Louis Lambert International Airport

    13:08

    STL

    1h 31m

    Nonstop

    14:39

    ORD

    S M T W T F S
    Search

  7. LH431

    O'Hare International Airport

    16:05

    ORD

    7h 20m

    Nonstop

    06:25

    FRA

    S M T W T F S

  8. LH9762

    Frankfurt Airport

    11:25

    FRA

    12h 25m

    Nonstop

    06:50

    SIN

    S M T W T F S

  9. KE3735

    St. Louis Lambert International Airport

    06:00

    STL

    1h 40m

    Nonstop

    08:40

    ATL

    S M T W T F S
    Search

  10. KE034

    Hartsfield–Jackson Atlanta International Airport

    11:45

    ATL

    15h 55m

    Nonstop

    16:40

    ICN

    S M T W T F S

  11. KE645

    Incheon International Airport

    18:40

    ICN

    6h 15m

    Nonstop

    23:55

    SIN

    S M T W T F S

  12. TK9564

    St. Louis Lambert International Airport

    07:29

    STL

    1h 31m

    Nonstop

    09:00

    ORD

    S M T W T F S
    Search

  13. TK186

    O'Hare International Airport

    11:45

    ORD

    10h 25m

    Nonstop

    07:10

    IST

    S M T W T F S

  14. TK022

    Istanbul Airport

    15:20

    IST

    10h 30m

    Nonstop

    06:50

    SIN

    S - T W T F -

  15. NH7589

    St. Louis Lambert International Airport

    08:05

    STL

    1h 40m

    Nonstop

    09:45

    ORD

    S M T W T F S
    Search

  16. NH111

    O'Hare International Airport

    17:45

    ORD

    12h 30m

    Nonstop

    21:15

    HND

    S M T W T F S

  17. NH843

    Haneda Airport

    00:25

    HND

    7h 30m

    Nonstop

    06:55

    SIN

    S M T W T F S

  18. UA1257

    St. Louis Lambert International Airport

    08:00

    STL

    4h 36m

    Nonstop

    10:36

    SFO

    S M T W T F S
    Search

  19. UA001

    San Francisco International Airport

    22:40

    SFO

    15h 35m

    Nonstop

    06:15

    SIN

    S M T W T F S

  20. DL1492

    St. Louis Lambert International Airport

    17:00

    STL

    3h 26m

    Nonstop

    19:26

    SLC

    S M T W T F S
    Search

  21. DL2016

    Salt Lake City International Airport

    20:45

    SLC

    2h 25m

    Nonstop

    22:10

    SEA

    S M T W T F S

  22. SQ027

    Seattle-Tacoma International Airport

    09:40

    SEA

    17h 5m

    Nonstop

    17:45

    SIN

    - M T W T F S

  23. UA214

    St. Louis Lambert International Airport

    19:05

    STL

    4h 36m

    Nonstop

    21:41

    SFO

    - - - W T F S
    Search

  24. UA029

    San Francisco International Airport

    10:50

    SFO

    15h 45m

    Nonstop

    18:35

    SIN

    S M T W T F S

  25. LH449

    St. Louis Lambert International Airport

    15:40

    STL

    8h 50m

    Nonstop

    07:30

    FRA

    - - T - T - S
    Search

  26. LH780

    Frankfurt Airport

    21:40

    FRA

    12h 25m

    Nonstop

    17:05

    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 15,337.23 km
Cheapest one-way ticket price PHP 44,962
Cheapest return ticket price PHP 83,219

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 17 km, by taxi about 30 minutes.
    • The distance from Seletar Airport to downtown is about 15 km, by taxi about 30 minutes.
  • One-way flights from St. Louis Lambert International Airport to Singapore Changi Airport currently start from PHP 44,962, and round-trip fares start from PHP 83,219. 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 PHP 82,402. 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

Note: Prices shown on this page are the estimated lowest 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 clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date 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.