Cheap Flights to Southwest from $220

Plan your trip for January if you're hoping to get a good price on your fare. It's the cheapest month to fly to Southwest. If possible, avoid traveling during peak periods such as public holidays or major events.

Nonstop flights to Southwest depart from US cities like Miami and Fort Lauderdale. When planning your getaway, just choose the "Direct flights only" filter to search for routes that'll let you fly to Southwest without a stopover.

Making travel plans in the low season and booking in advance are two great ways to secure cheap flights to Southwest. Or, consider flying on a Thursday, which, on average, is 16% cheaper than leaving on a Sunday.* Want to be the first to know as soon as fares drop? Set up price tracking on the Expedia app to get real-time updates.

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Staying flexible with your plans might help you to secure last-minute deals on cheap flights to Southwest. To see all the available options, consider exploring different ticket types, tweaking your Southwest trip dates, jetting out of an alternative airport or going with another carrier.

Get the travel dates you want and a price that suits your budget by booking your domestic flight to Southwest up to 28 days in advance. Lock in tickets two to four months ahead if you're flying to Southwest from an international destination.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

You can save an average of 8% if you purchase tickets on a Sunday rather than Fridays, which tend to be the most expensive day to book.* When it comes to getting a cheap flight to Southwest, the key is good timing.

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Pack your suitcase and choose between these well-known airlines that fly to Southwest:

• American Airlines - 65 flights to Southwest each month, including 65 flights to Henry E. Rohlsen Airport (STX) per month.
• Spirit Airlines - 30 flights to Southwest each month, including 30 flights to Henry E. Rohlsen Airport (STX) per month.
• Delta Air Lines - 4 flights to Southwest each month, including 4 flights to Henry E. Rohlsen Airport (STX) per month.

You could potentially save hundreds of dollars if you secure a Southwest, St. Croix Island flight and hotel package deal on Expedia. And you'll make life easier by having all your travel plans in one place. Try bundling your flight and hotel with add-ons like tours and car rentals for your own customized Southwest getaway.

It's usually possible to change or cancel your flight to Southwest. Many airlines let you cancel your flight for free within 24 hours of making your booking. However, some flights are non-refundable, and airlines may offer you a credit toward future travel rather than a direct refund. To find affordable flights to Southwest with flexible change policies, check "No cancel fee" or "Changes included" during your search. Want more details? Check out our Customer Service Portal.