Cheap Flights from St. Louis (STL) to Constanta (CND)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Constanta (CND-Mihail Kogalniceanu)

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Cheap Flights from St. Louis to Constanta (STL-CND)

Prices were available within the past 7 days and start at for one-way flights and $1,374 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Oct 7 - Sun, Oct 12
STL
St. Louis
CND
Constanta
$1,374 Roundtrip, found 3 days ago
$1,374
Roundtrip
found 3 days ago
Select United flight, departing Tue, Oct 7 from St. Louis to Constanta, returning Sun, Oct 12, priced at $1,374 found 3 days ago
United
Mon, Oct 6 - Fri, Oct 17
STL
St. Louis
CND
Constanta
$1,380 Roundtrip, found 2 days ago
$1,380
Roundtrip
found 2 days ago
Select United flight, departing Mon, Oct 6 from St. Louis to Constanta, returning Fri, Oct 17, priced at $1,380 found 2 days ago
Turkish Airlines
Tue, Oct 7 - Fri, Oct 17
STL
St. Louis
CND
Constanta
$1,394 Roundtrip, found 2 days ago
$1,394
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Tue, Oct 7 from St. Louis to Constanta, returning Fri, Oct 17, priced at $1,394 found 2 days ago
United
Wed, Oct 8 - Fri, Oct 17
STL
St. Louis
CND
Constanta
$1,397 Roundtrip, found 3 days ago
$1,397
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 8 from St. Louis to Constanta, returning Fri, Oct 17, priced at $1,397 found 3 days ago
United
Mon, Oct 6 - Fri, Oct 17
STL
St. Louis
CND
Constanta
$1,400 Roundtrip, found 2 days ago
$1,400
Roundtrip
found 2 days ago
Select United flight, departing Mon, Oct 6 from St. Louis to Constanta, returning Fri, Oct 17, priced at $1,400 found 2 days ago
Turkish Airlines
Wed, Oct 8 - Wed, Oct 15
STL
St. Louis
CND
Constanta
$1,407 Roundtrip, found 2 days ago
$1,407
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Wed, Oct 8 from St. Louis to Constanta, returning Wed, Oct 15, priced at $1,407 found 2 days ago
United
Wed, Oct 8 - Fri, Oct 17
STL
St. Louis
CND
Constanta
$1,412 Roundtrip, found 3 days ago
$1,412
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 8 from St. Louis to Constanta, returning Fri, Oct 17, priced at $1,412 found 3 days ago
Turkish Airlines
Wed, Oct 8 - Sun, Oct 12
STL
St. Louis
CND
Constanta
$1,414 Roundtrip, found 2 days ago
$1,414
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Wed, Oct 8 from St. Louis to Constanta, returning Sun, Oct 12, priced at $1,414 found 2 days ago
Turkish Airlines
Mon, Oct 6 - Fri, Oct 17
STL
St. Louis
CND
Constanta
$1,420 Roundtrip, found 2 days ago
$1,420
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Mon, Oct 6 from St. Louis to Constanta, returning Fri, Oct 17, priced at $1,420 found 2 days ago
United
Wed, Oct 8 - Wed, Oct 15
STL
St. Louis
CND
Constanta
$1,427 Roundtrip, found 2 days ago
$1,427
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 8 from St. Louis to Constanta, returning Wed, Oct 15, priced at $1,427 found 2 days ago
United
Wed, Oct 8 - Sun, Oct 12
STL
St. Louis
CND
Constanta
$1,434 Roundtrip, found 2 days ago
$1,434
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 8 from St. Louis to Constanta, returning Sun, Oct 12, priced at $1,434 found 2 days ago
Alaska Airlines
Mon, Oct 6 - Sun, Oct 12
STL
St. Louis
CND
Constanta
$1,456 Roundtrip, found 3 days ago
$1,456
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Oct 6 from St. Louis to Constanta, returning Sun, Oct 12, priced at $1,456 found 3 days ago
Turkish Airlines
Wed, Oct 8 - Wed, Oct 15
STL
St. Louis
CND
Constanta
$1,459 Roundtrip, found 2 days ago
$1,459
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Wed, Oct 8 from St. Louis to Constanta, returning Wed, Oct 15, priced at $1,459 found 2 days ago
Turkish Airlines
Wed, Oct 8 - Sun, Oct 12
STL
St. Louis
CND
Constanta
$1,465 Roundtrip, found 2 days ago
$1,465
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Wed, Oct 8 from St. Louis to Constanta, returning Sun, Oct 12, priced at $1,465 found 2 days ago
Alaska Airlines
Mon, Oct 6 - Fri, Oct 17
STL
St. Louis
CND
Constanta
$1,469 Roundtrip, found 2 days ago
$1,469
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Oct 6 from St. Louis to Constanta, returning Fri, Oct 17, priced at $1,469 found 2 days ago
Alaska Airlines
Mon, Oct 6 - Fri, Oct 17
STL
St. Louis
CND
Constanta
$1,476 Roundtrip, found 2 days ago
$1,476
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Oct 6 from St. Louis to Constanta, returning Fri, Oct 17, priced at $1,476 found 2 days ago
United
Wed, Oct 8 - Wed, Oct 15
STL
St. Louis
CND
Constanta
$1,479 Roundtrip, found 2 days ago
$1,479
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 8 from St. Louis to Constanta, returning Wed, Oct 15, priced at $1,479 found 2 days ago
United
Wed, Oct 8 - Sun, Oct 12
STL
St. Louis
CND
Constanta
$1,486 Roundtrip, found 2 days ago
$1,486
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 8 from St. Louis to Constanta, returning Sun, Oct 12, priced at $1,486 found 2 days ago
United
Sat, Oct 4 - Wed, Oct 15
STL
St. Louis
CND
Constanta
$1,547 Roundtrip, found 3 days ago
$1,547
Roundtrip
found 3 days ago
Select United flight, departing Sat, Oct 4 from St. Louis to Constanta, returning Wed, Oct 15, priced at $1,547 found 3 days ago
United
Sat, Oct 4 - Fri, Oct 17
STL
St. Louis
CND
Constanta
$1,577 Roundtrip, found 3 days ago
$1,577
Roundtrip
found 3 days ago
Select United flight, departing Sat, Oct 4 from St. Louis to Constanta, returning Fri, Oct 17, priced at $1,577 found 3 days ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Mihail Kogalniceanu Airport (CND) cost?
Snag a cheap one-way flight or cheap return flight from $1,374 from Lambert-St. Louis Intl. Airport (STL) to Mihail Kogalniceanu Airport (CND) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Mihail Kogalniceanu Airport (CND)?
October is the least expensive month to fly from STL to CND. Traveling outside of peak seasons is often the key to finding better deals on flights.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Mihail Kogalniceanu Airport (CND)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest STL to CND flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Mihail Kogalniceanu Airport (CND)?
There are no daily direct flights from Lambert-St. Louis Intl. Airport (STL) to Mihail Kogalniceanu Airport (CND). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from STL to CND?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can change based on the season, airline 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 Mihail Kogalniceanu Airport (CND)?
Select a flight from Lambert-St. Louis Intl. Airport (STL) to Mihail Kogalniceanu Airport (CND) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this 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 Mihail Kogalniceanu Airport (CND) last-minute?
Holding off until just before your departure to book your flight from STL to CND generally means paying more. While you may come across some last-minute deals, they're not always guaranteed. Allow some flexibility in your schedule for a better chance of scoring a bargain.
Is it cheaper to book a STL to CND flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to CND flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place takes the hassle out of travel planning. Simply secure your flights and select from our wide range of hotels, then personalize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Mihail Kogalniceanu Airport (CND)?
If you reserved your STL to CND flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Mihail Kogalniceanu
Roundtrip price
$1,373
Distance
5548 mi

Book with confidence

Book with confidence

St. Louis to Constanta Flights

The cheapest times to fly from St. Louis to Constanta

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

 

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

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

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 Constanta in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Constanta 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 Constanta 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 Constanta Flights

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Explore a world of travel with Expedia

*Available to One Key members.