$1,156 Find Cheap Flights from St. Louis to Sri Lanka

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 Sri Lanka departing on 1/22. 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, 0 bags

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Book Cheap St. Louis to Sri Lanka Plane Tickets

 
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, Jan 22 - Sun, Jan 25
Cathay Pacific Logo
7:04 am - 11:30 pm
STL
-
CMB
28h 56m2 stops
Cathay Pacific Logo
12:45 am - 11:59 pm
CMB
-
STL
34h 44m2 stops
$1,156Cathay Pacific
Tue, Feb 10 - Tue, Mar 3
Qatar Airways Logo
6:02 pm - 4:30 pm
STL
-
CMB
34h 58m2 stops
Qatar Airways Logo
7:30 pm - 10:05 pm
CMB
-
STL
38h 05m2 stops
$1,373Qatar Airways
Wed, Apr 29 - Sun, May 3
Qatar Airways Logo
7:00 am - 2:45 am
STL
-
CMB
33h 15m2 stops
Qatar Airways Logo
7:45 pm - 11:55 pm
CMB
-
STL
38h 40m2 stops
$1,452Qatar Airways
Sat, Apr 25 - Tue, Apr 28
Qatar Airways Logo
12:06 pm - 3:05 am
STL
-
CMB
28h 29m2 stops
Qatar Airways Logo
3:15 am - 11:55 pm
CMB
-
STL
31h 10m2 stops
$1,480Qatar Airways
Tue, Feb 10 - Tue, Mar 3
Multiple Airlines Logo
4:05 pm - 6:25 pm
STL
-
CMB
38h 50m3 stops
Multiple Airlines Logo
5:20 pm - 3:29 pm
CMB
-
STL
33h 39m2 stops
$1,619Multiple Airlines
Thu, Jan 22 - Mon, Jan 26
Multiple Airlines Logo
7:04 am - 11:30 pm
STL
-
CMB
28h 56m2 stops
Multiple Airlines Logo
8:15 pm - 1:55 pm
CMB
-
STL
53h 10m3 stops
$1,736Multiple Airlines
Tue, Feb 10 - Tue, Mar 3
Emirates Logo
3:11 pm - 8:20 am
STL
-
CMB
29h 39m2 stops
Emirates Logo
8:15 pm - 10:14 pm
CMB
-
STL
37h 29m3 stops
$1,749Emirates
Sat, Apr 25 - Tue, Apr 28
Emirates Logo
3:23 pm - 10:15 am
STL
-
CMB
32h 22m3 stops
Emirates Logo
2:55 am - 9:03 pm
CMB
-
STL
28h 38m2 stops
$1,794Emirates
Sat, Apr 25 - Wed, Apr 29
Emirates Logo
3:23 pm - 10:15 am
STL
-
CMB
32h 22m3 stops
Emirates Logo
8:35 pm - 9:04 pm
CMB
-
STL
34h 59m3 stops
$1,854Emirates
Sat, Apr 25 - Wed, Apr 29
Air Canada Logo
4:05 pm - 4:45 am
STL
-
CMB
26h 10m3 stops
Air Canada Logo
10:05 am - 3:24 pm
CMB
-
STL
39h 49m2 stops
$2,146Air Canada
Booking Insights

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’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

Cheapest flight$1,156
Most popular time to fly and prices are also 19% lower on average.
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.

Reviews of the top airline 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 3686 reviews
7.9Crew
7.4Comfort
7.4Entertainment
7.3Food
7.5Boarding
Airline reviews

All good. Over four hours flight if provided snacks like Qatar Airways would be better

8.0 ExcellentAnonymous, Oct 2025
DFW - YYC
Read more Qatar Airways reviews

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

I was travelling 3.5 years after. Agree Economy is no business class but the food was mediocre. Ordered a Hindu meal, the salads were bitter . The food was really below quality and had no tast from what I had in the past. Indian Railways probably have a better quality food when compared. However the kids meal was really nice and really appreciate how they were taken care of. The restrooms were dirty .

My flight was with American Airlines 120. The flight was delayed 3 hours and I missed my connection. When I arrived in Doha, the AA staff told me to call an 800 number to rebook a different flight, which was unacceptable. Eventually a Qatar Air staff member helped rebook me on a flight to Manila, that was 12 hours later. They offered me a hotel and meal voucher which I declined, because I didn’t want to leave the airport. Long story short, I spent 12 hours in the Doha airport waiting for my next flight.

Overall the experience was neat with crew being nice and caring especially to parent with kids. The free snacks option was okay. The kiosk at Philly airport didn’t work.

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

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

Information on your arrival and departure airports