HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sri Lanka

$846+ Cheap flights from St. Louis (STL) to Sri Lanka

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CMB
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Sri Lanka with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 29, 2025.

Round-trip from

$1,397
(Etihad Airways)

One-way from

$846
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,196
From Lambert-St Louis to Sri Lanka
Search Deals
One-way flight from Lambert-St Louis to Sri Lanka
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($127 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($73 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 29, 2025.

This Etihad Airways deal was found by Cheapflights users on 4/27. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/254:01 pmSTL - CMB
2 stops29h 59mMultiple Airlines
Sun 6/19:45 pmCMB - STL
2 stops27h 40mMultiple Airlines
Deal found 4/27$1,397
This Air Canada deal was found by Cheapflights users on 4/27. 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.
Sat 5/247:30 amSTL - CMB
2 stops38h 35mAir Canada
Thu 7/312:05 amCMB - STL
2 stops30h 25mAir Canada
Deal found 4/27$1,493
This oojo deal was found by Cheapflights users on 4/27. 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.
Sat 5/245:00 amSTL - CMB
2 stops35h 20mEtihad Airways
Fri 7/44:30 pmCMB - STL
2 stops31h 47mEtihad Airways
Deal found 4/27$2,132
This Gurufare deal was found by Cheapflights users on 4/27. 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.
Sat 5/2410:31 amSTL - CMB
3 stops29h 04mBritish Airways
Thu 7/33:35 amCMB - STL
3 stops44h 42mBritish Airways
Deal found 4/27$2,749

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 April 29, 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 5/25

4:01 pm-8:30 am

2 stops29h 59m

Colombo Bandaranaike Intl

Sun 6/1

9:45 pm-2:55 pm

2 stops27h 40m

$1,397

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Sat 5/24

7:30 am-8:35 am

2 stops38h 35m

Colombo Bandaranaike Intl

Thu 7/3

12:05 am-8:00 pm

2 stops30h 25m

$1,493

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Sat 5/24

5:00 am-2:50 am

2 stops35h 20m

Colombo Bandaranaike Intl

Fri 7/4

4:30 pm-1:47 pm

2 stops31h 47m

$2,132

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Sat 5/24

10:31 am-2:05 am

3 stops29h 04m

Colombo Bandaranaike Intl

Thu 7/3

3:35 am-1:47 pm

3 stops44h 42m

$2,749

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Fri 5/23

2:25 pm-8:50 am

3 stops55h 55m

$846

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Fri 5/23

7:30 pm-12:45 pm

2 stops30h 45m

$904

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

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 April 29, 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 April 29, 2025.
Etihad Airways
7.4
Good
1,203 reviews

Boarding

7.6

Comfort

7.3

Crew

7.8

Entertainment

7.3

Food

7.2

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2025

JFK - AUH

Low load on JFK to AUH. Got a whole row to myself. Modern airline and airplane. Only vegetarian option available on same route. It was delicious though. AUH BKK was packed to the gills. Nothing wrong with the flight though.
Etihad Airways
7.4
Good
1,203 reviews
Etihad Airways
7.4
Good
1,203 reviews

Boarding

7.6

Comfort

7.3

Crew

7.8

Entertainment

7.3

Food

7.2

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2025

JFK - AUH

Low load on JFK to AUH. Got a whole row to myself. Modern airline and airplane. Only vegetarian option available on same route. It was delicious though. AUH BKK was packed to the gills. Nothing wrong with the flight though.
Air Canada
7.0
Good
9,240 reviews
Etihad Airways
7.4
Good
1,203 reviews

Boarding

7.6

Comfort

7.3

Crew

7.8

Entertainment

7.3

Food

7.2

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2025

JFK - AUH

Low load on JFK to AUH. Got a whole row to myself. Modern airline and airplane. Only vegetarian option available on same route. It was delicious though. AUH BKK was packed to the gills. Nothing wrong with the flight though.
SriLankan Airlines
6.8
Okay
73 reviews
Etihad Airways
7.4
Good
1,203 reviews

Boarding

7.6

Comfort

7.3

Crew

7.8

Entertainment

7.3

Food

7.2

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2025

JFK - AUH

Low load on JFK to AUH. Got a whole row to myself. Modern airline and airplane. Only vegetarian option available on same route. It was delicious though. AUH BKK was packed to the gills. Nothing wrong with the flight though.
British Airways
6.6
Okay
6,830 reviews
Etihad Airways
7.4
Good
1,203 reviews

Boarding

7.6

Comfort

7.3

Crew

7.8

Entertainment

7.3

Food

7.2

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2025

JFK - AUH

Low load on JFK to AUH. Got a whole row to myself. Modern airline and airplane. Only vegetarian option available on same route. It was delicious though. AUH BKK was packed to the gills. Nothing wrong with the flight though.

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Sri Lanka

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Narita flights
Kansas City to Haneda flights
St. Louis to Narita flights
St. Louis to Haneda flights
Kansas City to Suvarnabhumi flights
St. Louis to Hyderabad flights
St. Louis to Incheon Intl flights
St. Louis to Manila flights
Springfield to Haneda flights
St. Louis to New Delhi flights
Kansas City to Manila flights
St. Louis to Suvarnabhumi flights
Springfield to Narita flights
St. Louis to Gimpo Intl flights
Kansas City to Incheon Intl flights
Kansas City to Ho Chi Minh City flights
Kansas City to Hyderabad flights
Kansas City to New Delhi flights
St. Louis to Mumbai flights
St. Louis to Da Nang flights
St. Louis to Kansai Intl flights
St. Louis to Singapore flights
St. Louis to Chennai flights
St. Louis to Hong Kong flights
Kansas City to Kansai Intl flights
St. Louis to Denpasar flights
St. Louis to Hongqiao Intl flights
St. Louis to Pu Dong flights
St. Louis to Taiwan Taoyuan Intl flights
Kansas City to Malé flights
Kansas City to Taiwan Taoyuan Intl flights
Kansas City to Fukuoka flights
St. Louis to Ahmedabad flights
Kansas City to Mumbai flights
Kansas City to Denpasar flights
St. Louis to Ho Chi Minh City flights
St. Louis to Sung Shan flights
Kansas City to Hongqiao Intl flights
Kansas City to Chennai flights
Kansas City to Pu Dong flights
St. Louis to Cebu City flights
Springfield to Manila flights
St. Louis to Fukuoka flights
Kansas City to Itami flights
Kansas City to Chubu Centrair Intl flights
Kansas City to Capital flights

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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$946Average$1,209FlexibilityNo cancel feeOn-time71%
Qatar AirwaysCheapest$1,156Average$1,396FlexibilityNo cancel feeOn-time68%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.