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£81 Cheap Flights to Southwest

View £81 flight on Fri, 11 Dec 2026Opens in a new window

Popular airlines to Southwest

  • American Airlines

  • United

  • Delta

  • Cape Air

  • JetBlue Airways

  • Virgin Atlantic

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Cheap round-trip flights to Southwest

Prices were available within the past 7 days and start at £81 for one-way flights and £144 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
JetBlue Airways
Cape Air
JetBlue Airways
Cape Air
Cape Air
JetBlue Airways
Delta
American Airlines
Virgin Atlantic

Frequently asked questions

How do I find cheap flights to Southwest that have flexible change policies?
It's as easy as counting to three with Expedia. Firstly, enter your travel details and press "Search." Next step? Check the "No change fee" box just below the "Flexible change policies" subheading to the left of your screen. Step 3. Nab your flexible and cheap airfare to Southwest.
Which airlines fly to Southwest?
You can take your pick of a variety of airlines that offer flights into or near Southwest. A few of the best of them are:
  • American Airlines - 65 flights to or near Southwest each month, including 65 flights to Henry E. Rohlsen Airport (STX) per month.
  • Spirit Airlines - 30 flights to or near Southwest each month, including 30 flights to Henry E. Rohlsen Airport (STX) per month.
  • Delta Air Lines - 4 flights to or near Southwest each month, including 4 flights to Henry E. Rohlsen Airport (STX) per month.
How can I find cheap tickets to Southwest?
To score an amazing deal to Southwest, book well ahead. Also use Expedia's "flexible dates" feature above your search results. This will compare prices for similar time frames. In the last seven days, £144 was the lowest price for a flight to Southwest.
How much is a flight to Southwest?
One-way flights departing from San Juan (SJU) sold for as little as £81 in the last seven days. During this time, the price of a round-trip journey to Southwest varied between £144 and £1,149. If you spot a deal, book fast — these prices don't wait around for long.
What are the most popular airports to fly into in Southwest?
Zip up your suitcase and fly into Henry E. Rohlsen Airport (STX), Southwest's major flight hub. Book a ticket on one of the 99 flights that touch down at this well-known destination every month.
When is the cheapest time to fly to Southwest?
If you'd prefer to spend your cash enjoying the delights of Southwest rather than on flying there, depart earlier in the week. The cheapest day to travel is generally Tuesday, with Monday coming in second. With many people traveling on weekends, Saturday often has the most expensive fares.
How much is a plane ticket to Southwest?
Prices ranged from just £144 to £1,149 in the last seven days. When you're ready to book, we'll be ready to help you lock in a low-cost flight to Southwest.
What months are the cheapest to book a flight to Southwest?
Grab your ticket in February for the cheapest flights to Southwest. The month of December is usually the most expensive time to purchase a seat.

Book with confidence

Top tips for booking flights to Southwest from UK

Get ready to fly to Southwest

Prepare your luggage and book your flights to Southwest with Expedia. We offer a seamless flight booking experience, with a wide range of Southwest plane tickets to choose from. If you need help finding some of the best deals for cheap flights to Southwest in 2026, we are always available to assist you. Book your flights to Southwest today and let the adventure begin!

Find the best tickets to Southwest

To find some of the best tickets to Southwest in 2026, use Expedia's powerful search engine to compare dates and the different departure and arrival airports for your trip. Whether you're after direct flights to Southwest or last-minute flights to Southwest, you can filter and sort your search results, making it easy to find the ideal flight to Southwest.

Airlines fly to Southwest

There are 20 different airlines that fly to Southwest including some of the most trusted names in the business. To book flights to Southwest with your favourite airline, take a look at Expedia's flight listings and try out different dates to find some of the best Southwest plane tickets.

Find the cheapest flights to Southwest

By booking early you may find some of the best deals for Southwest flights from the UK, including Southwest direct flights. You can usually find affordable and cheap flights to Southwest, whether one-way from £81 or round-trip from £144, with Expedia if you book your trip far enough in advance.

Find the best airports for cheap flights to Southwest

Try searching for different Southwest airports with Expedia to find some of the cheapest flights to Southwest. Flights from San Juan (SJU) to St. Croix Island (STX) usually have the lowest price from £81.

Why book your flights to Southwest with Expedia

Expedia offers great deals on Southwest air fares from £81 to cater to every budget. Not only is Expedia one of the top platforms to book flights to Southwest from the UK, it is also your one-stop shop for booking hotels, car rentals, and more.

*Prices and availability are subject to change. Additional terms apply.

Top tips for booking flights to Southwest from UK

Travel information

Southwest Flights Information

Airlines serving
JetBlue Airways, Cape Air, interCaribbean Airways, American Airlines, Delta, Virgin Atlantic
Roundtrip price
from £144
Southwest Flights Information
*Available to Expedia members.