$526 Cheap Flights from St. Louis (STL) to Exeter (EXT)

View $526 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Exeter (EXT-Exeter Intl.)

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Cheap Flights from St. Louis to Exeter (STL-EXT)

Prices were available within the past 7 days and start at $526 for one-way flights and $1,178 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, May 9 - Sun, May 17
STL
St. Louis
EXT
Exeter
$1,178 Roundtrip, found 7 hours ago
$1,178
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sat, May 9 from St. Louis to Exeter, returning Sun, May 17, priced at $1,178 found 7 hours ago
American Airlines
Sat, May 9 - Sun, May 17
STL
St. Louis
EXT
Exeter
$1,183 Roundtrip, found 7 hours ago
$1,183
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sat, May 9 from St. Louis to Exeter, returning Sun, May 17, priced at $1,183 found 7 hours ago
United
Sat, May 9 - Sun, May 17
STL
St. Louis
EXT
Exeter
$1,188 Roundtrip, found 7 hours ago
$1,188
Roundtrip
found 7 hours ago
Select United flight, departing Sat, May 9 from St. Louis to Exeter, returning Sun, May 17, priced at $1,188 found 7 hours ago
American Airlines
Sat, May 9 - Sun, May 17
STL
St. Louis
EXT
Exeter
$1,188 Roundtrip, found 7 hours ago
$1,188
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sat, May 9 from St. Louis to Exeter, returning Sun, May 17, priced at $1,188 found 7 hours ago
United
Sat, May 9 - Sun, May 17
STL
St. Louis
EXT
Exeter
$1,203 Roundtrip, found 7 hours ago
$1,203
Roundtrip
found 7 hours ago
Select United flight, departing Sat, May 9 from St. Louis to Exeter, returning Sun, May 17, priced at $1,203 found 7 hours ago
American Airlines
Sat, May 9 - Sun, May 17
STL
St. Louis
EXT
Exeter
$1,218 Roundtrip, found 7 hours ago
$1,218
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sat, May 9 from St. Louis to Exeter, returning Sun, May 17, priced at $1,218 found 7 hours ago
United
Sat, May 9 - Sun, May 17
STL
St. Louis
EXT
Exeter
$1,223 Roundtrip, found 7 hours ago
$1,223
Roundtrip
found 7 hours ago
Select United flight, departing Sat, May 9 from St. Louis to Exeter, returning Sun, May 17, priced at $1,223 found 7 hours ago
Delta
Sat, May 9 - Sun, May 17
STL
St. Louis
EXT
Exeter
$1,268 Roundtrip, found 7 hours ago
$1,268
Roundtrip
found 7 hours ago
Select Delta flight, departing Sat, May 9 from St. Louis to Exeter, returning Sun, May 17, priced at $1,268 found 7 hours ago
Finnair
Sat, May 9 - Sun, May 17
STL
St. Louis
EXT
Exeter
$1,271 Roundtrip, found 7 hours ago
$1,271
Roundtrip
found 7 hours ago
Select Finnair flight, departing Sat, May 9 from St. Louis to Exeter, returning Sun, May 17, priced at $1,271 found 7 hours ago
Iberia
Sat, May 9 - Sun, May 17
STL
St. Louis
EXT
Exeter
$1,283 Roundtrip, found 7 hours ago
$1,283
Roundtrip
found 7 hours ago
Select Iberia flight, departing Sat, May 9 from St. Louis to Exeter, returning Sun, May 17, priced at $1,283 found 7 hours ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Exeter Intl. Airport (EXT) cost?
Get a cheap one-way flight from $526 or cheap return flight from $1,178 from Lambert-St. Louis Intl. Airport (STL) to Exeter Intl. Airport (EXT) 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 Exeter Intl. Airport (EXT)?
Flying in May can help you save, as it's the cheapest month for flights between STL and EXT. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Exeter Intl. Airport (EXT)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STL to EXT flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Exeter Intl. Airport (EXT)?
You'll have to hop on a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Exeter Intl. Airport (EXT). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from STL to EXT?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can change based on the season, 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 Exeter Intl. Airport (EXT)?
To reach Exeter Intl. Airport (EXT) on time, book a flight that takes off from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood 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 Lambert-St. Louis Intl. Airport (STL) to Exeter Intl. Airport (EXT) last-minute?
Holding off until just before your trip to book a flight from STL to EXT often results in higher prices. Although you may find some last-minute deals, they're not always guaranteed. Keep your travel plans flexible for the best chance of landing a bargain.
Is it cheaper to book a STL to EXT flight and hotel package?
Securing a STL to EXT flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Select from our extensive range of stays and then add car rentals, activities and flights to your booking. Bundle everything 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 Exeter Intl. Airport (EXT)?
In most cases, you can reschedule or cancel your STL to EXT flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you'd like further information, visit our Customer Service portal.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Exeter Intl.
Roundtrip price
$1,177
Distance
4095 mi

Book with confidence

Book with confidence

St. Louis to Exeter Flights

The cheapest times to fly from St. Louis to Exeter

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

 

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

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

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 Exeter in 2025. You can also book with separate airlines for your outbound and return journeys, from $526 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 Exeter 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 Exeter 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 Exeter Flights

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*Available to One Key members.