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
Alaska Airlines
Alaska Airlines
Frontier Airlines
Frontier Airlines
Air Canada
Air Canada

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

Nonstop

Carry-on included

Lower price than typical

Phoenix (PHX) to St. Louis (STL).
Departing on Sat, Oct 25 at 4:15pm from Phoenix, arriving at 9:10pm in St. Louis.
Returning on Sat, Nov 1 at 5:55pm from St. Louis, arriving at 7:15pm in Phoenix.
Southwest Airlines, nonstop.
55% less than typical

$184

Select Southwest Airlines flight departing on Sat, Oct 25 at 4:15pm from Phoenix, returning on Sat, Nov 1 at 5:55pm from St. Louis priced at $184
Phoenix (PHX) to St. Louis (STL).
Departing on Sat, Oct 25 at 3:25pm from Phoenix, arriving at 8:27pm in St. Louis.
Returning on Sat, Nov 1 at 7:31am from St. Louis, arriving at 9:05am in Phoenix.
American Airlines, nonstop.
55% less than typical

$184

Select American Airlines flight departing on Sat, Oct 25 at 3:25pm from Phoenix, returning on Sat, Nov 1 at 7:31am from St. Louis priced at $184
Phoenix (PHX) to St. Louis (STL).
Departing on Wed, Oct 15 at 3:25pm from Phoenix, arriving at 8:27pm in St. Louis.
Returning on Sun, Oct 19 at 7:31am from St. Louis, arriving at 9:05am in Phoenix.
American Airlines, nonstop.
25% less than typical

$372

Select American Airlines flight departing on Wed, Oct 15 at 3:25pm from Phoenix, returning on Sun, Oct 19 at 7:31am from St. Louis priced at $372

Phoenix (PHX) to St. Louis (STL).
Departing on Thu, Oct 30 at 12:38pm from Phoenix, arriving at 5:38pm in St. Louis.
Returning on Mon, Nov 3 at 2:29pm from St. Louis, arriving at 5:05pm in Phoenix.
American Airlines, nonstop.
35% less than typical

$254

Select American Airlines flight departing on Thu, Oct 30 at 12:38pm from Phoenix, returning on Mon, Nov 3 at 2:29pm from St. Louis priced at $254
Phoenix (PHX) to St. Louis (STL).
Departing on Sat, Oct 18 at 6:15am from Phoenix, arriving at 11:10am in St. Louis.
Returning on Tue, Oct 21 at 8:45pm from St. Louis, arriving at 10:05pm in Phoenix.
Southwest Airlines, nonstop.
25% less than typical

$309

Select Southwest Airlines flight departing on Sat, Oct 18 at 6:15am from Phoenix, returning on Tue, Oct 21 at 8:45pm from St. Louis priced at $309
Phoenix (PHX) to St. Louis (STL).
Departing on Fri, Oct 31 at 3:25pm from Phoenix, arriving at 8:27pm in St. Louis.
Returning on Mon, Nov 10 at 7:33am from St. Louis, arriving at 10:09am in Phoenix.
American Airlines, nonstop.
35% less than typical

$244

Select American Airlines flight departing on Fri, Oct 31 at 3:25pm from Phoenix, returning on Mon, Nov 10 at 7:33am from St. Louis priced at $244
Los Angeles (LAX) to St. Louis (STL).
Departing on Thu, Oct 16 at 5:47pm from Los Angeles, arriving at 11:14pm in St. Louis.
Returning on Mon, Oct 20 at 6:39am from St. Louis, arriving at 8:27am in Los Angeles.
American Airlines, nonstop.
20% less than typical

$389

Select American Airlines flight departing on Thu, Oct 16 at 5:47pm from Los Angeles, returning on Mon, Oct 20 at 6:39am from St. Louis priced at $389
Dallas (DAL) to St. Louis (STL).
Departing on Tue, Oct 21 at 8:35am from Dallas, arriving at 10:15am in St. Louis.
Returning on Sat, Oct 25 at 8:30am from St. Louis, arriving at 10:15am in Dallas.
Southwest Airlines, nonstop.
25% less than typical

$259

Select Southwest Airlines flight departing on Tue, Oct 21 at 8:35am from Dallas, returning on Sat, Oct 25 at 8:30am from St. Louis priced at $259
New York (LGA) to St. Louis (STL).
Departing on Fri, Nov 21 at 12:55pm from New York, arriving at 2:51pm in St. Louis.
Returning on Fri, Nov 28 at 8:40am from St. Louis, arriving at 4:28pm in New York.
American Airlines, nonstop.
20% less than typical

$303

Select American Airlines flight departing on Fri, Nov 21 at 12:55pm from New York, returning on Fri, Nov 28 at 8:40am from St. Louis priced at $303

Travel information

Origin airport	SWI-All Airports
Destination airport	Lambert-St. Louis Intl.
Distance	4133 mi

Book with confidence

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.

Explore a world of travel with Expedia

St. Ann Vacation Rentals

*Available to One Key members.

Unlock instant savings with Member Prices

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

Travelers