$834 Find Cheap Flights from St. Louis to Sri Lanka

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Sri Lanka departing on 8/12. 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
1 adult, Economy

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Cheap Flights from St. Louis to Sri Lanka

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Sri Lanka 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Sri Lanka

Thu, Jul 31 - Tue, Sep 30
Etihad Airways Logo
6:00 am - 8:35 pmSTL-CMB
28h 05m2 stops
Etihad Airways Logo
4:30 pm - 3:24 pmCMB-STL
33h 24m2 stops
$1,350Etihad Airways
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Thu, Jul 31 - Mon, Sep 29
Qatar Airways Logo
1:16 pm - 3:05 amSTL-CMB
27h 19m2 stops
Qatar Airways Logo
3:35 am - 8:23 pmCMB-STL
27h 18m2 stops
$1,501Qatar Airways
Find Deal
Mon, Jul 14 - Mon, Aug 4
Qatar Airways Logo
1:16 pm - 5:45 pmSTL-CMB
41h 59m2 stops
Qatar Airways Logo
10:30 am - 11:59 pmCMB-STL
47h 59m2 stops
$1,645Qatar Airways
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Fri, Jul 18 - Thu, Jul 31
Qatar Airways Logo
6:10 am - 2:05 amSTL-CMB
33h 25m2 stops
Qatar Airways Logo
10:30 am - 11:59 pmCMB-STL
47h 59m2 stops
$1,815Qatar Airways
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Mon, Jul 14 - Mon, Aug 4
 Logo
10:47 am - 8:30 amSTL-CMB
35h 13m3 stops
 Logo
5:05 pm - 4:31 pmCMB-STL
33h 56m3 stops
$1,902
Find Deal
Mon, Jul 14 - Sun, Aug 3
Qatar Airways Logo
6:41 am - 2:05 amSTL-CMB
32h 54m2 stops
Qatar Airways Logo
3:35 am - 11:59 pmCMB-STL
30h 54m2 stops
$1,971Qatar Airways
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Mon, Jul 14 - Mon, Aug 4
 Logo
9:15 am - 8:50 amSTL-CMB
37h 05m2 stops
 Logo
5:05 pm - 4:31 pmCMB-STL
33h 56m3 stops
$1,991
Find Deal
Fri, Jul 18 - Wed, Jul 30
Qatar Airways Logo
6:10 am - 2:05 amSTL-CMB
33h 25m2 stops
Qatar Airways Logo
3:35 am - 11:59 pmCMB-STL
30h 54m2 stops
$2,056Qatar Airways
Find Deal
Thu, Jul 31 - Tue, Sep 30
Emirates Logo
3:20 pm - 9:30 amSTL-CMB
31h 40m3 stops
Emirates Logo
8:35 pm - 9:59 pmCMB-STL
35h 54m3 stops
$4,911Emirates
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Thu, Jul 31 - Mon, Sep 29
Emirates Logo
3:20 pm - 9:30 amSTL-CMB
31h 40m3 stops
Emirates Logo
2:55 am - 7:42 pmCMB-STL
27h 17m2 stops
$4,977Emirates
Find Deal
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KAYAK's insights & trends for St. Louis to Sri Lanka flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Sri Lanka, 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 Sri Lanka is October, when tickets cost $1,118 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $2,305 and $1,880 respectively.

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

The average price of all round-trip flights from St. Louis to Sri Lanka clicked on KAYAK for each day over the last 12 months.

When flying from St. Louis to Sri Lanka, you should consider leaving on a Thursday and avoid Saturdays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.


Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$834
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from St. Louis to Colombo

FAQs - booking Sri Lanka flights

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

    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 Sri Lanka.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Sri Lanka 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 Sri Lanka?

    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 from St. Louis to Sri Lanka with an airline and back with another airline.

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

    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 from St. Louis to Sri Lanka up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Sri Lanka?

    The cheapest time of day to fly to Sri Lanka is generally in the morning, when round-trip flights cost $1,409 on average. Morning departures are around 3% cheaper than evening flights, on average. The most expensive time of day to fly to Sri Lanka is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,495.

Top airlines flying from St. Louis to Sri Lanka

 
Need help choosing which airline to fly with from St. Louis to Sri Lanka? 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
Qatar AirwaysOverall score based on 3584 reviews
7.4Entertainment
7.9Crew
7.4Comfort
7.5Boarding
7.3Food
Airline reviews

This trip was the most comfortable one I have ever experienced, the team was excellent and very helpful. I am so glad I picked Qatar Airways.

10.0 ExcellentItimad, Mar 2025BOS - DOH
Read more Qatar Airways reviews

This trip was the most comfortable one I have ever experienced, the team was excellent and very helpful. I am so glad I picked Qatar Airways.

All the crew members were too slow and rude. Most of the times the registers were empty, while hundreds of customers were waiting in line, and it was impossible to get a supervisor. Despite being in line on time, I missed my freight, plus a some customers who were ahead and behind me.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

My experience with Qatar airway was very unsatisfactory. They lost my child’s stroller and I was told they found it and will send it to the hotel which was a lie. I had to go back to the airport baggage claim and pick up myself after trying to contact them many times!. There was a lack professional and communication. I am very disappointed in Qatar airway and will not be recommending them to friends and family nor will I be flying with them in the future.

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

Delayed my flights and no communication. We end up spending 6 hrs in Doha. No food or any concern from the airline. Terrible

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

Everything you need to know for your flight from St. Louis to Sri Lanka

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