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Book Southwest Last-Minute Flights

Discover Southwest last-minute flights

When you book with Alternative Airlines, you can select last-minute flights from 600+ airlines, including Southwest. Discover how to find cheap last-minute flights, available deals and discounts, and how to book.

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What are last-minute flights?

Last-minute flights are booked close to departure. You can book last-minute flights a week before, one day in advance, or even on the day of travel.

Whether it's for an emergency or you're looking for a spontaneous trip, you can book Southwest Airlines last-minute flights at Alternative Airlines.

Discover how to get cheap Southwest flights, different ways to pay, top locations and more by scrolling down this page.

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How to get cheap last-minute flights with Southwest?

Avoid tourist hotspots πŸ—ΊοΈ

If you want to get away but haven't settled on a destination, choose somewhere less common to fly to. Last-minute flights to popular destinations tend to be very expensive, as airlines know there will always be people willing to pay steep fees.

However, if you travel somewhere more remote, then there's a chance your tickets will actually be cheaper than if you booked them in advance. If an airline flies without all its seats being booked, it loses money, so often, airlines will lower the prices of less popular flights to encourage more people to book!


Flexible Dates πŸ—“οΈ

Different days in the same week will have different flight prices. If you're flexible with your travel dates, select a time when flights are cheaper. Alternative Airlines' fare finder tool lets you see how expensive it is to fly each day. Flights in red are the most pricey and green the cheapest.


Night Flights πŸŒƒ

Night flights tend to be less booked than day flights. This means they're usually cheaper than a daytime flight. Read our guide on Southwest red-eye flights to learn more about travelling during the night hours.

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Select a Buy Now Pay Later at checkout πŸ’Έ

At Alternative Airlines, you can choose from 20+ Buy Now Pay Later lenders (BNPL), including worldwide favourites like Klarna and Afterpay. BNPLs let you split the cost of your flights into short or long-term instalment plans that range from a couple of weeks to over a year. Many are interest-free, meaning you'll pay the same sum as you would have if you'd bought your flights upfront.

Paying over time means less money is leaving your account at one point, so there's less financial stress on your wallet. Discover fly now, pay later with Southwest.


Southwest last-minute flight deals and offers πŸ€‘

We've always got deals and discounts available at Alternative Airlines. Visit our promo code page to save on your next flight!

New York City

Popular Southwest last-minute flight routes

At Alternative Airlines, the most popular Southwest last-minute flight routes are within the US. Here are some that are often booked:

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New York ✈ to Los Angeles

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San Francisco ✈ to Orlando

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Seattle ✈ to Texas

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Chicago ✈ to Miami

How to book last-minute flights with Southwest

Step 1 - search for flights

Search for flights

At the top of this page, you'll find the Alternative Airlines flight search form. Select your travel dates and the amount of passengers flying. You can also choose from one of the 160+ available currencies, with additional Crypto options available.

How to book last-minute flights with Southwest

Select Southwest

Select Southwest Airlines

Once you've filled out your details, you'll see all the available flights for your travel dates and location. Filter the search to only show Southwest Airlines. You can also filter by the cheapest flights, the quickest and more.

How to book last-minute flights with Southwest

Select a Buy Now Pay Later option at checkout

Select your preferred payment provider at checkout

Once you've entered your passenger details, airline and additional amenities, you'll be taken to checkout. Select your preferred payment method, whether that's paying all upfront, using a Buy Now Pay Later or putting down a deposit.

Some payment methods are country-specific and may not be available to you.

How to book last-minute flights with Southwest

Booking confirmed

Booking confirmed

Once you've selected your payment method, you're all done! You'll receive confirmation to your email inbox.

Get ready for takeoff. ✈️

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Ready to book your last-minute flights?

The clock's ticking. Book your tickets now before they run out!

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Southwest last-minute flights FAQs

Where can I book Southwest Airlines last-minute flights?

At Alternative Airlines, you can book your Southwest last-minute flights stress-free. Select your travel dates and how you want to pay in just a few minutes, then receive your booking confirmation to your email. It's really that simple!

Are last minute flights cheaper?

This depends. If you're travelling to a popular destination, chances are your flights will be a lot more expensive than if you'd booked them in advance. However, the opposite can apply if you're going to a more remote location. If an airline has plenty of empty seats, sometimes they'll lower the prices of their tickets to encourage more people to book.

Can I finance Southwest last-minute flights?

Absolutely. Book your Southwest last-minute flights today and pay in instalments through Alternative Airlines. With 20+ Buy Now Pay Later options available, you can select the plan that best suits your budget needs, whether through 3 monthly instalments or 12 tiny ones over a year.

Fly now pay later at Alternative Airlines.

How to get cheap last-minute flights on Southwest?

By booking at Alternative Airlines. We offer plenty of schemes to make your Southwest last-minute flights affordable. You can use our fare finder tool to discover the cheapest day to fly, travel at night, select a Buy Now Pay Later at checkout and use one of our promo codes!

No matter how last-minute you book, you can still travel affordably at Alternative Airlines.

How late can I book a Southwest flight?

At Alternative Airlines, you can book flights months, weeks or days in advance. You can sometimes even book the day of the flight. The closer it is to departure, the less likely you'll be able to find the flight that suits your travel and budget needs. So if you want to travel, book as soon as possible.

Most Alternative Airlines customers book their flights 6 weeks before travel.

Can I book same-day flights with Southwest?

This depends. At Alternative Airlines, same-day flights are always available. However, depending on the airline and route, they may or may not be what you're looking for. If you're flying between popular airports, you may be able to book same-day Southwest flights.