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$1,180+ Cheap flights from St. Louis (STL) to Sri Lanka

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CMB
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from St. Louis to Sri Lanka

Keep the following information in mind while searching for St. Louis to Sri Lanka flight deals. Data was last updated March 31, 2025.

Round-trip from

$1,180
(oojo)

Popular in

December

Cheapest in

April

Average price

$1,235
From Lambert-St Louis to Sri Lanka
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($218 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($103 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from St. Louis to Sri Lanka

Cheapest flights from St. Louis to Sri Lanka
Explore the most affordable flight options available from St. Louis to Sri Lanka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This oojo deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/207:35 amSTL - CMB
2 stops32h 45mEtihad Airways
Sun 6/224:30 pmCMB - STL
2 stops38h 30mEtihad Airways
Deal found 3/31$1,180
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/242:19 pmSTL - CMB
2 stops26h 16mAmerican Airlines
Tue 6/248:20 pmCMB - STL
2 stops27h 47mAmerican Airlines
Deal found 3/30$1,215
This American Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2410:48 amSTL - CMB
2 stops28h 47mMultiple Airlines
Mon 6/233:35 amCMB - STL
2 stops44h 32mMultiple Airlines
Deal found 3/30$1,218
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/59:10 amSTL - CMB
2 stops30h 25mQatar Airways
Thu 5/83:35 amCMB - STL
2 stops29h 14mQatar Airways
Deal found 3/30$1,328
This Air Canada deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/157:30 amSTL - CMB
2 stops38h 35mAir Canada
Thu 5/2210:05 amCMB - STL
2 stops44h 08mAir Canada
Deal found 3/31$1,458
This Emirates deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/233:40 pmSTL - CMB
3 stops40h 20mEmirates
Mon 6/238:35 pmCMB - STL
3 stops36h 10mEmirates
Deal found 3/30$1,667
This Gurufare deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/183:29 pmSTL - CMB
3 stops25h 06mBritish Airways
Sun 4/2710:30 amCMB - STL
3 stops38h 53mBritish Airways
Deal found 3/30$2,678

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Sri Lanka that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2025.
Use the filters below to find and compare flights from St. Louis to Sri Lanka that are best for you.

Fly from

St. Louis

Fly to

Sri Lanka

Route

Depart

Return

Price

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Sun 4/20

7:35 am-2:50 am

2 stops32h 45m

Colombo Bandaranaike Intl

Sun 6/22

4:30 pm-8:30 pm

2 stops38h 30m

$1,180

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Thu 4/24

2:19 pm-3:05 am

2 stops26h 16m

Colombo Bandaranaike Intl

Tue 6/24

8:20 pm-1:37 pm

2 stops27h 47m

$1,215

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Thu 4/24

10:48 am-2:05 am

2 stops28h 47m

Colombo Bandaranaike Intl

Mon 6/23

3:35 am-1:37 pm

2 stops44h 32m

$1,218

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Mon 5/5

9:10 am-2:05 am

2 stops30h 25m

Colombo Bandaranaike Intl

Thu 5/8

3:35 am-10:19 pm

2 stops29h 14m

$1,328

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Thu 5/15

7:30 am-8:35 am

2 stops38h 35m

Colombo Bandaranaike Intl

Thu 5/22

10:05 am-7:43 pm

2 stops44h 08m

$1,458

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Wed 4/23

3:40 pm-6:30 pm

3 stops40h 20m

Colombo Bandaranaike Intl

Mon 6/23

8:35 pm-10:15 pm

3 stops36h 10m

$1,667

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Fri 4/18

3:29 pm-3:05 am

3 stops25h 06m

Colombo Bandaranaike Intl

Sun 4/27

10:30 am-2:53 pm

3 stops38h 53m

$2,678

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Best time to book a flight from St. Louis to Sri Lanka

Have a flexible travel schedule? Discover the best time to fly to Sri Lanka from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from St. Louis to Sri Lanka?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Sri Lanka (average of $1,049). Flying from St. Louis to Sri Lanka in December is currently the most expensive (average of $1,850). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to LK?

Find hourly flight availability from St. Louis to Sri Lanka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

When flying from St. Louis to Sri Lanka, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Sri Lanka by month

Plan your trip to Sri Lanka by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sri Lanka ranges from 2.4 - 13.8 inches per month. October is typically the wettest month, when rainfall can reach 13.8 in. February is typically the driest time to visit Sri Lanka when rainfall is around 2.4 in.

Temperature in Sri Lanka by month

Plan your trip to Sri Lanka by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sri Lanka, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

Reviews of airlines servicing Sri Lanka

Get insights into the airlines that provide service to Sri Lanka. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sri Lanka. Reviews last updated March 31, 2025.
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Overall

8.0

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.0
Very good
3,192 reviews
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Overall

8.0

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,541 reviews
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Overall

8.0

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Etihad Airways
7.4
Good
1,181 reviews
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Overall

8.0

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
American Airlines
7.2
Good
10,000 reviews
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Overall

8.0

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Air Canada
7.0
Good
9,004 reviews
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Overall

8.0

Food

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Sri Lanka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Sri Lanka?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Sri Lanka.

  • Can I find deals for flights from St. Louis to Sri Lanka that include hotel bookings?

    Yes. In addition to deals on St. Louis to Sri Lanka flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Sri Lanka?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Sri Lanka.

  • Can I find deals for business class flights from St. Louis to Sri Lanka?

    Yes. Cheapflights offers flight deals from St. Louis to Sri Lanka by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Sri Lanka?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Sri Lanka (average of $1,049). Flying from St. Louis to Sri Lanka in December is currently the most expensive (average of $1,850). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Sri Lanka

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from St. Louis to Sri Lanka

Discover the top 2 airlines that operate flights from St. Louis to Sri Lanka. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$946Average$1,000FlexibilityNo cancel feeOn-time71%
Qatar AirwaysCheapest$1,156Average$1,397FlexibilityNo cancel feeOn-time68%
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