$608 Cheap Flights from St. Louis (STL) to Colombo (CMB)

View $608 flight on Thu, Jan 15, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB)

Cheap Flights from St. Louis to Colombo (STL-CMB)

Prices were available within the past 7 days and start at $608 for one-way flights and $1,143 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Oct 13 - Wed, Oct 22
STL
St. Louis
CMB
Colombo
$1,143 Roundtrip, found 4 days ago
$1,143
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Oct 13 from St. Louis to Colombo, returning Wed, Oct 22, priced at $1,143 found 4 days ago
American Airlines
Wed, Apr 1 - Sun, Jun 7
STL
St. Louis
CMB
Colombo
$1,147 Roundtrip, found 2 days ago
$1,147
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Apr 1 from St. Louis to Colombo, returning Sun, Jun 7, priced at $1,147 found 2 days ago
American Airlines
Tue, Oct 7 - Mon, Oct 20
STL
St. Louis
CMB
Colombo
$1,149 Roundtrip, found 4 days ago
$1,149
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Oct 7 from St. Louis to Colombo, returning Mon, Oct 20, priced at $1,149 found 4 days ago
American Airlines
Tue, Oct 7 - Mon, Oct 20
STL
St. Louis
CMB
Colombo
$1,151 Roundtrip, found 4 days ago
$1,151
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Oct 7 from St. Louis to Colombo, returning Mon, Oct 20, priced at $1,151 found 4 days ago
American Airlines
Wed, Apr 1 - Sun, Jun 7
STL
St. Louis
CMB
Colombo
$1,153 Roundtrip, found 2 days ago
$1,153
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Apr 1 from St. Louis to Colombo, returning Sun, Jun 7, priced at $1,153 found 2 days ago
American Airlines
Wed, Apr 1 - Sun, Jun 7
STL
St. Louis
CMB
Colombo
$1,153 Roundtrip, found 2 days ago
$1,153
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Apr 1 from St. Louis to Colombo, returning Sun, Jun 7, priced at $1,153 found 2 days ago
Cathay Pacific
Thu, Feb 19 - Wed, Mar 11
STL
St. Louis
CMB
Colombo
$1,186 Roundtrip, found 8 hours ago
$1,186
Roundtrip
found 8 hours ago
Select Cathay Pacific flight, departing Thu, Feb 19 from St. Louis to Colombo, returning Wed, Mar 11, priced at $1,186 found 8 hours ago
Qatar Airways
Thu, Mar 5 - Fri, Mar 13
STL
St. Louis
CMB
Colombo
$1,388 Roundtrip, found 5 days ago
$1,388
Roundtrip
found 5 days ago
Select Qatar Airways flight, departing Thu, Mar 5 from St. Louis to Colombo, returning Fri, Mar 13, priced at $1,388 found 5 days ago
Air Canada
Tue, Oct 7 - Mon, Oct 20
STL
St. Louis
CMB
Colombo
$1,558 Roundtrip, found 4 days ago
$1,558
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Oct 7 from St. Louis to Colombo, returning Mon, Oct 20, priced at $1,558 found 4 days ago
Lufthansa
Wed, Nov 19 - Tue, Dec 2
STL
St. Louis
CMB
Colombo
$1,656 Roundtrip, found 2 days ago
$1,656
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Wed, Nov 19 from St. Louis to Colombo, returning Tue, Dec 2, priced at $1,656 found 2 days ago

Alternative airports near Colombo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Bandaranaike Intl. CMB. Cheapest option available. Average driving time to city center is 28 minutes. Flights from $1,255
CMB
Bandaranaike Intl.
Cheapest
Average driving time to city center28 min
Flights from $1,255

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB) cost?
Grab a cheap one-way flight from $608 or cheap return flight from $1,143 from Lambert-St. Louis Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB)?
The cheapest month to fly from STL to CMB is October, when there's less demand. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to CMB. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB)?
There are no daily nonstop flights departing from Lambert-St. Louis Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from STL to CMB?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB) route, travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB) last-minute?
Last-minute fares from STL to CMB are generally more expensive. For the lowest rates, start searching for flights as early as possible. That being said, if you're flexible with your travel plans, you may score a cheap fare right before your journey.
Is it cheaper to book a STL to CMB flight and hotel package?
Booking a STL to CMB flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our wide range of hotels and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Bandaranaike Intl. Airport (CMB)?
Usually, it's possible to reschedule or cancel your STL to CMB flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Bandaranaike Intl.
Airlines serving
Air Canada, American Airlines, Cathay Pacific, Qatar Airways
Roundtrip price
$1,143
Distance
9202 mi

Book with confidence

Book with confidence

St. Louis to Colombo Flights

The cheapest times to fly from St. Louis to Colombo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Colombo are during the month of October. You can find some of the cheapest flights from St. Louis to Colombo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Colombo

Sunday is one of the best days to book for cheap flights from St. Louis to Colombo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Colombo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Colombo in 2025. You can also book with separate airlines for your outbound and return journeys, from $608 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Colombo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Colombo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Colombo Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.