$1,111 Cheap Flights from Newcastle (NCL) to St. Louis (STL)

View $1,111 flight on Sat, Nov 1, 2025Opens in a new window

Popular airlines from Newcastle Intl. Airport (NCL) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Newcastle to St. Louis (NCL-STL)

Prices were available within the past 7 days and start at $1,111 for one-way flights and $1,379 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Fri, Oct 17 - Sat, Nov 1
NCL
Newcastle-upon-Tyne
STL
St. Louis
$1,379 Roundtrip, found 22 hours ago
$1,379
Roundtrip
found 22 hours ago
Select British Airways flight, departing Fri, Oct 17 from Newcastle-upon-Tyne to St. Louis, returning Sat, Nov 1, priced at $1,379 found 22 hours ago
American Airlines
Fri, Oct 17 - Sat, Nov 1
NCL
Newcastle-upon-Tyne
STL
St. Louis
$1,399 Roundtrip, found 22 hours ago
$1,399
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Fri, Oct 17 from Newcastle-upon-Tyne to St. Louis, returning Sat, Nov 1, priced at $1,399 found 22 hours ago
American Airlines
Fri, Oct 17 - Sat, Nov 1
NCL
Newcastle-upon-Tyne
STL
St. Louis
$1,401 Roundtrip, found 22 hours ago
$1,401
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Fri, Oct 17 from Newcastle-upon-Tyne to St. Louis, returning Sat, Nov 1, priced at $1,401 found 22 hours ago
British Airways
Fri, Oct 17 - Sat, Nov 1
NCL
Newcastle-upon-Tyne
STL
St. Louis
$1,402 Roundtrip, found 22 hours ago
$1,402
Roundtrip
found 22 hours ago
Select British Airways flight, departing Fri, Oct 17 from Newcastle-upon-Tyne to St. Louis, returning Sat, Nov 1, priced at $1,402 found 22 hours ago
American Airlines
Fri, Oct 17 - Sat, Nov 1
NCL
Newcastle-upon-Tyne
STL
St. Louis
$1,406 Roundtrip, found 22 hours ago
$1,406
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Fri, Oct 17 from Newcastle-upon-Tyne to St. Louis, returning Sat, Nov 1, priced at $1,406 found 22 hours ago
American Airlines
Fri, Oct 17 - Sat, Nov 1
NCL
Newcastle-upon-Tyne
STL
St. Louis
$1,407 Roundtrip, found 22 hours ago
$1,407
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Fri, Oct 17 from Newcastle-upon-Tyne to St. Louis, returning Sat, Nov 1, priced at $1,407 found 22 hours ago
British Airways
Fri, Oct 17 - Sat, Nov 1
NCL
Newcastle-upon-Tyne
STL
St. Louis
$1,413 Roundtrip, found 22 hours ago
$1,413
Roundtrip
found 22 hours ago
Select British Airways flight, departing Fri, Oct 17 from Newcastle-upon-Tyne to St. Louis, returning Sat, Nov 1, priced at $1,413 found 22 hours ago
Delta
Fri, Oct 17 - Sat, Nov 1
NCL
Newcastle-upon-Tyne
STL
St. Louis
$1,467 Roundtrip, found 22 hours ago
$1,467
Roundtrip
found 22 hours ago
Select Delta flight, departing Fri, Oct 17 from Newcastle-upon-Tyne to St. Louis, returning Sat, Nov 1, priced at $1,467 found 22 hours ago
Aer Lingus
Fri, Oct 17 - Sat, Nov 1
NCL
Newcastle-upon-Tyne
STL
St. Louis
$1,482 Roundtrip, found 22 hours ago
$1,482
Roundtrip
found 22 hours ago
Select Aer Lingus flight, departing Fri, Oct 17 from Newcastle-upon-Tyne to St. Louis, returning Sat, Nov 1, priced at $1,482 found 22 hours ago
KLM
Fri, Oct 17 - Sat, Nov 1
NCL
Newcastle-upon-Tyne
STL
St. Louis
$1,490 Roundtrip, found 22 hours ago
$1,490
Roundtrip
found 22 hours ago
Select KLM flight, departing Fri, Oct 17 from Newcastle-upon-Tyne to St. Louis, returning Sat, Nov 1, priced at $1,490 found 22 hours ago
Flights from Newcastle (NCL) to St. Louis (STL)
Origin airport
Newcastle Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Aer Lingus, American Airlines, British Airways, Delta, Iberia, KLM, Lufthansa, Virgin Atlantic
Roundtrip price
$1,378
Distance
4037 mi

Newcastle to St. Louis Flights

The cheapest times to fly from Newcastle to St. Louis

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

 

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

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

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 Newcastle to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,111 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 Newcastle to St. Louis 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 Newcastle to St. Louis 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 Newcastle Intl. Airport (NCL) to Lambert-St. Louis Intl. Airport (STL) cost?
Discover the latest flight deals from NCL to STL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from NCL to STL?
The cheapest flights from NCL to STL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from NCL to STL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from NCL to STL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Newcastle Intl. Airport (NCL) to Lambert-St. Louis Intl. Airport (STL)?
Direct flights from Newcastle Intl. Airport (NCL) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from NCL to STL?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Newcastle Intl. Airport (NCL) to Lambert-St. Louis Intl. Airport (STL)?
To touch down at Lambert-St. Louis Intl. Airport (STL) on time, book a flight that leaves Newcastle Intl. Airport (NCL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Newcastle Intl. Airport (NCL) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until right before your break to book your flight from NCL to STL often results in higher prices. While it's possible to find some last-minute discounts, there's no guarantee. Be flexible with your itinerary to maximize your chances of snagging a bargain.
Is it cheaper to book a NCL to STL flight and hotel package?
Opting for a NCL to STL flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our wide range of stays and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Newcastle Intl. Airport (NCL) to Lambert-St. Louis Intl. Airport (STL)?
Typically, you can modify or cancel your NCL to STL flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you'd like more information, go to our Customer Service portal.

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*Available to One Key members.