Cheap flights from Swindon to St. Louis (SWI to STL)

Popular airlines from Swindon to St. Louis, MO (STL-Lambert-St. Louis Intl.)

American Airlines
American Airlines
Delta
Delta
United
United
Southwest Airlines
Southwest Airlines
Frontier Airlines
Frontier Airlines
Alaska Airlines
Alaska Airlines
Air Canada
Air Canada

Plan, book, fly with confidence
Be in the know
Get alerts if flight prices drop or rise*
Book smarter
Save up to 30% on select hotels after you book a flight*
Earn twice
Earn your airline miles on top of our OneKeyCash
Learn about One Key

Today's featured flight deals from Swindon to St. Louis, MO (STL-Lambert-St. Louis Intl.)

Nonstop

Carry-on included

Lower price than typical

Los Angeles (LAX) to St. Louis (STL).
Departing on Sun, Sep 7 at 5:31pm from Los Angeles, arriving at 10:59pm in St. Louis.
Returning on Sun, Sep 14 at 5:18am from St. Louis, arriving at 10:05am in Los Angeles.
American Airlines, nonstop.
30% less than typical

$337

Select American Airlines flight departing on Sun, Sep 7 at 5:31pm from Los Angeles, returning on Sun, Sep 14 at 5:18am from St. Louis priced at $337
Los Angeles (LAX) to St. Louis (STL).
Departing on Wed, Aug 27 at 5:37pm from Los Angeles, arriving at 11:09pm in St. Louis.
Returning on Mon, Sep 1 at 6:45am from St. Louis, arriving at 8:34am in Los Angeles.
American Airlines, nonstop.
25% less than typical

$367

Select American Airlines flight departing on Wed, Aug 27 at 5:37pm from Los Angeles, returning on Mon, Sep 1 at 6:45am from St. Louis priced at $367
Los Angeles (LAX) to St. Louis (STL).
Departing on Wed, Aug 27 at 5:37pm from Los Angeles, arriving at 11:09pm in St. Louis.
Returning on Tue, Sep 2 at 6:45am from St. Louis, arriving at 8:34am in Los Angeles.
American Airlines, nonstop.
20% less than typical

$345

Select American Airlines flight departing on Wed, Aug 27 at 5:37pm from Los Angeles, returning on Tue, Sep 2 at 6:45am from St. Louis priced at $345

Los Angeles (LAX) to St. Louis (STL).
Departing on Sat, Sep 6 at 1:35pm from Los Angeles, arriving at 7:10pm in St. Louis.
Returning on Sat, Sep 13 at 6:20am from St. Louis, arriving at 8:23am in Los Angeles.
Southwest Airlines, nonstop.
25% less than typical

$295

Select Southwest Airlines flight departing on Sat, Sep 6 at 1:35pm from Los Angeles, returning on Sat, Sep 13 at 6:20am from St. Louis priced at $295
Atlanta (ATL) to St. Louis (STL).
Departing on Sun, Sep 7 at 11:55am from Atlanta, arriving at 12:31pm in St. Louis.
Returning on Sun, Sep 14 at 9:19am from St. Louis, arriving at 11:51am in Atlanta.
Delta, nonstop.
20% less than typical

$277

Select Delta flight departing on Sun, Sep 7 at 11:55am from Atlanta, returning on Sun, Sep 14 at 9:19am from St. Louis priced at $277
Dallas (DFW) to St. Louis (STL).
Departing on Mon, Sep 8 at 9:07pm from Dallas, arriving at 10:50pm in St. Louis.
Returning on Mon, Sep 15 at 3:59pm from St. Louis, arriving at 5:55pm in Dallas.
American Airlines, nonstop.
25% less than typical

$243

Select American Airlines flight departing on Mon, Sep 8 at 9:07pm from Dallas, returning on Mon, Sep 15 at 3:59pm from St. Louis priced at $243
Atlanta (ATL) to St. Louis (STL).
Departing on Sat, Sep 6 at 1:35pm from Atlanta, arriving at 2:15pm in St. Louis.
Returning on Sat, Sep 13 at 7:55pm from St. Louis, arriving on Sun, Sep 14 at 6:04am in Atlanta.
Southwest Airlines, nonstop.
20% less than typical

$270

Select Southwest Airlines flight departing on Sat, Sep 6 at 1:35pm from Atlanta, returning on Sat, Sep 13 at 7:55pm from St. Louis priced at $270
Dallas (DFW) to St. Louis (STL).
Departing on Wed, Oct 1 at 1:27pm from Dallas, arriving at 3:09pm in St. Louis.
Returning on Mon, Oct 6 at 6:05pm from St. Louis, arriving at 7:50pm in Dallas.
American Airlines, nonstop.
25% less than typical

$169

Select American Airlines flight departing on Wed, Oct 1 at 1:27pm from Dallas, returning on Mon, Oct 6 at 6:05pm from St. Louis priced at $169

Flights from Swindon (SWI) to St. Louis (STL)
Origin airport	SWI-All Airports
Destination airport	Lambert-St. Louis Intl.
Distance	4133 mi

Swindon to St. Louis Flights

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

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

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

Unlock instant savings with Member Prices

Cheap Flights from Swindon (SWI) to St. Louis (STL)

Travelers

Popular airlines from Swindon to St. Louis, MO (STL-Lambert-St. Louis Intl.)

Plan, book, fly with confidence

Be in the know

Book smarter

Earn twice

Today's featured flight deals from Swindon to St. Louis, MO (STL-Lambert-St. Louis Intl.)

Swindon to St. Louis Flights

Explore a world of travel with Expedia

Lodging

Flights

Packages

Cars

Vacation Rentals

Other