$1,236 Cheap Flights from St. Louis (STL) to Asmara (ASM)

View $1,236 flight on Tue, Sep 16, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Asmara (ASM-Asmara Intl.)

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Cheap Flights from St. Louis to Asmara (STL-ASM)

Prices were available within the past 7 days and start at $1,236 for one-way flights and $1,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, Sep 13 - Thu, Jan 15
STL
St. Louis
ASM
Asmara
$1,500 Roundtrip, found 1 day ago
$1,500
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sat, Sep 13 from St. Louis to Asmara, returning Thu, Jan 15, priced at $1,500 found 1 day ago
United
Fri, Sep 12 - Wed, Jan 14
STL
St. Louis
ASM
Asmara
$1,549 Roundtrip, found 1 day ago
$1,549
Roundtrip
found 1 day ago
Select United flight, departing Fri, Sep 12 from St. Louis to Asmara, returning Wed, Jan 14, priced at $1,549 found 1 day ago
Air Canada
Sat, Sep 13 - Thu, Jan 15
STL
St. Louis
ASM
Asmara
$1,601 Roundtrip, found 5 days ago
$1,601
Roundtrip
found 5 days ago
Select Air Canada flight, departing Sat, Sep 13 from St. Louis to Asmara, returning Thu, Jan 15, priced at $1,601 found 5 days ago
Lufthansa
Sun, Sep 14 - Wed, Jan 14
STL
St. Louis
ASM
Asmara
$1,610 Roundtrip, found 3 days ago
$1,610
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Sun, Sep 14 from St. Louis to Asmara, returning Wed, Jan 14, priced at $1,610 found 3 days ago
United
Fri, Sep 12 - Thu, Jan 15
STL
St. Louis
ASM
Asmara
$1,611 Roundtrip, found 1 day ago
$1,611
Roundtrip
found 1 day ago
Select United flight, departing Fri, Sep 12 from St. Louis to Asmara, returning Thu, Jan 15, priced at $1,611 found 1 day ago
Air Canada
Sat, Sep 13 - Wed, Jan 14
STL
St. Louis
ASM
Asmara
$1,635 Roundtrip, found 1 day ago
$1,635
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sat, Sep 13 from St. Louis to Asmara, returning Wed, Jan 14, priced at $1,635 found 1 day ago
United
Fri, Sep 12 - Mon, Jan 12
STL
St. Louis
ASM
Asmara
$1,644 Roundtrip, found 1 day ago
$1,644
Roundtrip
found 1 day ago
Select United flight, departing Fri, Sep 12 from St. Louis to Asmara, returning Mon, Jan 12, priced at $1,644 found 1 day ago
Lufthansa
Wed, Oct 1 - Mon, Dec 22
STL
St. Louis
ASM
Asmara
$1,650 Roundtrip, found 5 days ago
$1,650
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Wed, Oct 1 from St. Louis to Asmara, returning Mon, Dec 22, priced at $1,650 found 5 days ago
Lufthansa
Sun, Sep 14 - Wed, Jan 14
STL
St. Louis
ASM
Asmara
$1,670 Roundtrip, found 1 day ago
$1,670
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Sun, Sep 14 from St. Louis to Asmara, returning Wed, Jan 14, priced at $1,670 found 1 day ago
Turkish Airlines
Thu, Sep 4 - Wed, Oct 1
STL
St. Louis
ASM
Asmara
$1,956 Roundtrip, found 8 hours ago
$1,956
Roundtrip
found 8 hours ago
Select Turkish Airlines flight, departing Thu, Sep 4 from St. Louis to Asmara, returning Wed, Oct 1, priced at $1,956 found 8 hours ago
Flights from St. Louis (STL) to Asmara (ASM)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Asmara Intl.
Airlines serving
Turkish Airlines
Roundtrip price
$1,499
Distance
7470 mi

St. Louis to Asmara Flights

The cheapest times to fly from St. Louis to Asmara

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 Asmara are during the month of September. You can find some of the cheapest flights from St. Louis to Asmara with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from St. Louis to Asmara: 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 Asmara

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 Asmara in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,236 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 Asmara 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 Asmara 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.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Asmara Intl. Airport (ASM) cost?
Lock in a cheap one-way flight from $1,236 or cheap return flight from $1,500 from Lambert-St. Louis Intl. Airport (STL) to Asmara Intl. Airport (ASM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Asmara Intl. Airport (ASM)?
September is the most affordable month to fly from STL to ASM. Planning your trip for the off-season is often the key to better flight prices.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Asmara Intl. Airport (ASM)?
To find the cheapest airline that'll fly you from STL to ASM, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Asmara Intl. Airport (ASM)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Asmara Intl. Airport (ASM) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to ASM?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a number of factors, including the time of year and airline.*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 Asmara Intl. Airport (ASM)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Asmara Intl. Airport (ASM) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Later departures are on average 22% more likely to be canceled.**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 Asmara Intl. Airport (ASM) last-minute?
Booking your flight from STL to ASM shortly before your trip is usually more expensive. But if you're flexible with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a STL to ASM flight and hotel package?
Booking a STL to ASM flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Choose from our extensive range of hotels and then add flights, activities and car rentals 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 Asmara Intl. Airport (ASM)?
If you booked your STL to ASM flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.