Cheap Flights from St. Louis (CPS) to Medan (KNO)

Popular airlines from St. Louis, MO (CPS-St. Louis Downtown) to Medan (KNO-Kuala Namu Intl.)

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Frequently asked questions

How much does a flight from St. Louis Downtown Airport (CPS) to Kuala Namu Intl. Airport (KNO) cost?
Secure a cheap one-way flight or cheap return flight from St. Louis Downtown Airport (CPS) to Kuala Namu Intl. Airport (KNO) 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 St. Louis Downtown Airport (CPS) to Kuala Namu Intl. Airport (KNO)?
The cheapest month to fly from CPS to KNO is , when there's less demand. Off-peak season is usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from St. Louis Downtown Airport (CPS) to Kuala Namu Intl. Airport (KNO)?
To find the cheapest airline flying from CPS to KNO, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from St. Louis Downtown Airport (CPS) to Kuala Namu Intl. Airport (KNO)?
There are no daily direct flights departing from St. Louis Downtown Airport (CPS) to Kuala Namu Intl. Airport (KNO). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time at all.
What day of the week has the most flights from CPS to KNO?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can vary based 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 St. Louis Downtown Airport (CPS) to Kuala Namu Intl. Airport (KNO)?
Opt for a flight from St. Louis Downtown Airport (CPS) to Kuala Namu Intl. Airport (KNO) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time 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 St. Louis Downtown Airport (CPS) to Kuala Namu Intl. Airport (KNO) last-minute?
Holding off until just before your departure to book a ticket from CPS to KNO often results in higher prices. While you might find some last-minute discounts, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of getting a bargain.
Is it cheaper to book a CPS to KNO flight and hotel package?
You'll generally save money by securing a CPS to KNO flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your preferred flights and accommodations, you can add extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from St. Louis Downtown Airport (CPS) to Kuala Namu Intl. Airport (KNO)?
If you reserved your CPS to KNO flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the fare type you purchased, 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 if you want more information.

Travel information

Origin airport
St. Louis Downtown
Destination airport
Kuala Namu Intl.
Distance
9463 mi

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St. Louis to Medan Flights

The cheapest times to fly from St. Louis to Medan

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

 

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

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

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 Medan in 2026. 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 Medan 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 Medan 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 Medan Flights

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*Available to One Key members.