How long is the flight from St. Louis to Sri Lanka?

A quick flight from St. Louis to Sri Lanka can take about 28h 25m. Qatar Airways provides one of the quickest options available for as low as $1,373. The distance from St. Louis to Sri Lanka is about 9196 mi.

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.

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).

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.

$1,129+ Flights from St. Louis to Sri Lanka

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Cheap 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 December 18, 2025.

Sat 12/206:00 pmSTL - CMB

2 stops44h 25mQatar Airways

Fri 12/263:25 amCMB - STL

2 stops30h 40mQatar Airways

Deal found 12/15

$2,800

Sat 12/205:16 pmSTL - CMB

2 stops23h 39mMultiple Airlines

Sat 12/277:30 pmCMB - STL

3 stops39h 44mMultiple Airlines

Deal found 12/15

$3,167

Best flights from St. Louis to Sri Lanka
Discover carefully curated flight deals from St. Louis to Sri Lanka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Tue 2/1010:00 amSTL - CMB

2 stops28h 25mQatar Airways

Tue 3/37:30 pmCMB - STL

2 stops38h 05mQatar Airways

Deal found 12/16

$1,373

Tue 2/104:05 pmSTL - CMB

3 stops38h 50mMultiple Airlines

Tue 3/35:20 pmCMB - STL

2 stops33h 39mMultiple Airlines

Deal found 12/16

$1,619

Tue 2/103:11 pmSTL - CMB

2 stops29h 39mEmirates

Tue 3/38:15 pmCMB - STL

3 stops37h 29mEmirates

Deal found 12/17

$1,749

Sat 12/205:16 pmSTL - CMB

2 stops23h 39mMultiple Airlines

Sat 12/277:30 pmCMB - STL

3 stops39h 44mMultiple Airlines

Deal found 12/15

$3,167

Last-minute flights from St. Louis to Sri Lanka
Discover last-minute flight deals from St. Louis to Sri Lanka. Data last updated December 18, 2025 and is based on user searches.

Sat 12/206:00 pmSTL - CMB

2 stops44h 25mQatar Airways

Fri 12/263:25 amCMB - STL

2 stops30h 40mQatar Airways

Deal found 12/15

$2,800

Sat 12/205:16 pmSTL - CMB

2 stops23h 39mMultiple Airlines

Sat 12/277:30 pmCMB - STL

3 stops39h 44mMultiple Airlines

Deal found 12/15

$3,167

One-way flights from St. Louis to Sri Lanka
Search for one-way flight options from St. Louis to Sri Lanka. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Tue 12/2310:48 amSTL - CMB

3 stops34h 27mMultiple Airlines

Deal found 12/16

$1,129

Find flight deals from St. Louis to Sri Lanka

Round-trip from	$1,373 (oojo)
One-way from	$1,129 (Trip.com)
Popular in	June
Cheapest in	January
Average price	$1,688

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. 6% potential increase in price ($100 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Sri Lanka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Tue 2/10

10:00 am-1:55 am

2 stops28h 25m

Colombo Bandaranaike Intl

Tue 3/3

7:30 pm-10:05 pm

2 stops38h 05m

$1,373

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Tue 2/10

4:05 pm-6:25 pm

3 stops38h 50m

Colombo Bandaranaike Intl

Tue 3/3

5:20 pm-3:29 pm

2 stops33h 39m

$1,619

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Tue 2/10

3:11 pm-8:20 am

2 stops29h 39m

Colombo Bandaranaike Intl

Tue 3/3

8:15 pm-10:14 pm

3 stops37h 29m

$1,749

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Sat 12/20

5:16 pm-4:25 am

2 stops23h 39m

Colombo Bandaranaike Intl

Sat 12/27

7:30 pm-11:44 pm

3 stops39h 44m

$3,167

St. LouisColombo

STL - CMB

STLCMB

Lambert-St Louis

Tue 12/23

10:48 am-8:45 am

3 stops34h 27m

$1,129

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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 time of day to fly from STL to LK?

When flying from St. Louis to Sri Lanka, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 6% versus a flight at noon.

Reviews of airlines servicing Sri Lanka

See what other customers who have flown with Qatar Airways from St. Louis to Sri Lanka have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Qatar Airways

7.4

Good

3,686 reviews

Reviews

1 / 20

6.0

Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Qatar Airways

7.4

Good

3,686 reviews

Qatar Airways

7.4

Good

3,686 reviews

Reviews

1 / 20

6.0

Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Related info for your journey

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.
How long is the flight from St. Louis to Sri Lanka?
A quick flight from St. Louis to Sri Lanka can take about 28h 25m. Qatar Airways provides one of the quickest options available for as low as $1,373. The distance from St. Louis to Sri Lanka is about 9196 mi.
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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from St. Louis to Sri Lanka

Airline	Cheapest	Average	Flexibility	On-time
Qatar Airways	Cheapest$1,171	Average$1,492	FlexibilityNo cancel fee	On-time68%

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$1,129+ 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Sri Lanka

Cheapest flights from St. Louis to Sri LankaExplore 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 December 18, 2025.

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 December 18, 2025.

Find 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 December 18, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Sri Lanka that are best for you.

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.

Cheapflights Insights

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

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 December 18, 2025.

Reviews of airlines servicing Sri Lanka

See what other customers who have flown with Qatar Airways from St. Louis to Sri Lanka have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

How long is the flight from St. Louis to Sri Lanka?

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

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

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

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.

Top airline flying from St. Louis to Sri Lanka

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Book with Flexibility

Travel Smart

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 December 18, 2025.