Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

STL - SIN

Find cheap flights from St. Louis to Singapore from $1,284

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Singapore departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 5/24
Fri 5/31

Search hundreds of travel sites at once for deals on flights to Singapore

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Singapore.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Singapore.
In the last 7 days travelers have searched 45,119,101 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Singapore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:00 am - 9:00 amSTL-SIN
37h 00m2 stops
6:45 pm - 6:28 pmSIN-STL
36h 43m2 stops
$1,284Qatar Airways
Find Deal
Wed, Sep 11 - Fri, Sep 20
7:00 am - 9:00 amSTL-SIN
37h 00m2 stops
6:45 pm - 9:08 amSIN-STL
51h 23m2 stops
$1,294Qatar Airways
Find Deal
Mon, Sep 23 - Mon, Oct 7
6:00 pm - 6:15 amSTL-SIN
23h 15m1 stop
9:00 pm - 4:22 pmSIN-STL
32h 22m2 stops
$1,365United Airlines
Find Deal
Mon, Sep 23 - Mon, Oct 7
5:03 pm - 6:45 pmSTL-SIN
36h 42m2 stops
8:45 am - 5:03 pmSIN-STL
21h 18m1 stop
$1,370United Airlines
Find Deal
Sun, Jul 7 - Wed, Sep 18
7:00 am - 9:00 amSTL-SIN
37h 00m2 stops
2:15 am - 7:58 pmSIN-STL
30h 43m2 stops
$1,373Qatar Airways
Find Deal
Wed, Sep 11 - Thu, Sep 19
7:30 am - 6:15 amSTL-SIN
33h 45m2 stops
1:50 am - 3:40 pmSIN-STL
26h 50m2 stops
$1,384American Airlines
Find Deal
Mon, Sep 23 - Sun, Oct 6
5:25 pm - 11:40 pmSTL-SIN
41h 15m2 stops
10:30 pm - 6:04 pmSIN-STL
32h 34m2 stops
$1,535Delta
Find Deal
Sun, Jul 21 - Sun, Sep 1
7:00 am - 6:15 amSTL-SIN
34h 15m2 stops
1:50 am - 12:03 pmSIN-STL
23h 13m2 stops
$1,784American Airlines
Find Deal
Sun, Jul 7 - Tue, Sep 17
5:31 pm - 4:35 pmSTL-SIN
58h 04m2 stops
11:40 pm - 1:30 pmSIN-STL
26h 50m1 stop
$2,942Lufthansa
Find Deal
Sat, Jun 22 - Sat, Jul 6
3:25 pm - 4:20 pmSTL-SIN
35h 55m1 stop
12:30 am - 3:49 pmSIN-STL
28h 19m2 stops
$3,465Lufthansa
Find Deal
Sun, Jul 7 - Tue, Sep 17

Flights from St. Louis to Singapore - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Singapore to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all flights from St. Louis to Singapore clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Singapore on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from St. Louis to Singapore. For your return ticket, we recommend flying on a Monday and avoiding Saturdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Singapore, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Singapore is November, where tickets cost $1,317 on average. On the other hand, the most expensive months are December and January, where the average cost of tickets is $2,502 and $2,464 respectively.

Good to know

Low season

January

High season

May

Cheapest flight

$1,284
Best time to beat the crowds but there is an average 30% increase in price.
Most popular time to fly and prices are also 15% lower on average.
Flight 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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Singapore

  • What is the cheapest flight from St. Louis to Singapore?

    In the last 3 days, the lowest price for a flight from St. Louis to Singapore was $1,284 for a round-trip ticket.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in St. Louis and on arrival in Singapore.

  • Which aircraft models fly most regularly from St. Louis to Singapore?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Singapore?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between St. Louis and Singapore, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Singapore, Japan Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from St. Louis to Singapore are Japan Airlines and Delta. With an average price for the route of $1,500 and an overall rating of 8.3, Japan Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $1,530 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from St. Louis to Singapore?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Singapore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Singapore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Singapore from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Singapore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Singapore with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SIN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Singapore?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Singapore from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from St. Louis to Singapore

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Singapore. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Singapore? 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.
8.0
DeltaOverall score based on 11004 reviews
7.9comfort
8.2boarding
8.6crew
8.0entertainment
7.5food
Airline reviews

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

6.0 GoodDan, Apr 2024LGA - DEN
Read more about Delta reviews

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

This flight was ridiculous. I had to have a connecting flight from New York to orlando Florida??? The flight left late and because it was a short flight there was no first class amenities. I had one alcohol drink. The flight crew was fine, but it sure did not feel like first class. Delta to me dropped the ball by giving me a connecting flight. By the time we got to Raleigh we would have missed the next flight. Lucky for me the flight never came so now I was stuck waiting for a later flight that came in late also.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

I liked the ease of checking in, luggage check in, wheel chair assistance, boarding and flight.

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

They did a fine job. Can't wait to use Delta in the future.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

Operated by American Airlines. Very chaotic and the crew was bit rough responding any enquiries. Restricted leg space.. Qatar would have been better

Qatar airways from Doha to guangzhau was excellent big bird Boeing 777 more room and smoothly flight, I Love it

It was good no problems made it on time for the next flight overseas!

The made us waiting and held our passports and boarding pass making us miss our flights

Not impressed. Only allowed one carry on on such a long flight.

The flight was good but my neighbor had the vent open full power for the whole flight and because the air was blowing from the side instead of from the top and I got very cold and ended up with a sore throat.

Bad experience with the delay n long wait time for connecting flight after missing the connection flight from Doha.

Wore experience due to delay and took me 3 days to reach my destination.

All over with Qatar airlines my experience was really bad due to delays and then putting me on different airlines and after 8 hours of wait I had to listen to their is no plane to fly for another 24 hours. Wore experience ever.

Excellent will be flying again in May with Qatar. to Botswana.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

the flight from Tampa departed with a delay. The food on board was poor, usually on international airlines alcoholic beverages are offered free of charge , but here it was for a fee, the cutlery was wooden, there were no hot drinks (tea, coffee). Unfortunately, I didn't take pictures of the portions of food, but it wouldn't have been enough for a child either.And in the future, I will try not to use the services of this airline

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

The flight was great but board was a nightmare. The gate was changed 4 times during the layover period

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Cold air blew constantly on my legs almost making me numb.

Horrible experience. Nothing to give to kids to keep them entertained.

I think I have bruises on my kneecaps. Do the seats have to be so close together these days? And if they are so close they really shouldn’t recline. I think when the gentleman in front of me reclined, the back of his head was on my chin. That being said the crew were always caring and polite, and the flight was on time and very safe. So I’m grateful for that.

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

I dropped my wallet under my seat on this flight with all of my money and credit card. I requested to be able to go back and retrieve it but Lufthansa denied my request. I went to the Customer Services and they called Lost and Found but I was told nothing found would be turned in until around 12:00pm. My next flight was leaving so I was unable to check to see if my wallet was turned in. I will never fly with Lufthansa again.

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

Dinner was good by air travel standards but breakfast was too light and heavy on carbs/sugar.

Checking in for ongoing flight from Singapore could not be done in the UK. This meant we were not sure whether we had seats together or in the right place. This needs sorting!!

Used to love Lufthansa, but Rowe are too close together in Economy and passengers are allowed to recline their seats so far back it is impossible for those behind them to even reach for carry-on essentials during flight - except for meal service when flight attendants ask for seat backs to be raised, we can’t sleep on planes so this flight was most uncomfortable ever! Rod Rose

So far so good. I missed my flight because of the Lufthansa diversion. United helped me to figure out how to get accommodations from Lufthansa for my long layover. They help me book appropriate onward flight.

Last minute flights from St. Louis to Singapore

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Singapore that are departing in the next 10 days.
4/28Sun
multi-stopUnited Airlines
36h 20mSTL-SIN
6/25Tue
multi-stopUnited Airlines
31h 41mSIN-STL
$1,370
4/28Sun
multi-stopQatar Airways
39h 19mSTL-SIN
6/24Mon
multi-stopQatar Airways
32h 47mSIN-STL
$1,540
4/28Sun
multi-stop
31h 45mSTL-SIN
6/24Mon
multi-stop
27h 25mSIN-STL
$1,886
4/28Sun
multi-stop
31h 45mSTL-SIN
6/25Tue
multi-stop
31h 25mSIN-STL
$1,898
4/28Sun
multi-stop
31h 26mSTL-SIN
6/25Tue
multi-stop
39h 37mSIN-STL
$2,337
4/28Sun
multi-stopLufthansa
35h 55mSTL-SIN
6/25Tue
multi-stopLufthansa
35h 19mSIN-STL
$2,367
4/28Sun
multi-stopLufthansa
35h 55mSTL-SIN
6/24Mon
multi-stopLufthansa
28h 11mSIN-STL
$3,700
4/28Sun
multi-stopLufthansa
35h 40mSTL-SIN
6/25Tue
multi-stopLufthansa
39h 15mSIN-STL
$3,969

Search by stops

Search by airline

Search by price

St. Louis - Singapore Flights

Departure:

St. Louis (STL)United States

Destination:

Singapore (SIN)Singapore

Cabin classes:

Browse destinations: