Cheap Flights to Southwest

View ฿2,275 flight on Tue, 23 Sep 2025Opens in a new window

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Cheap round-trip flights to Southwest

Prices were available within the past 7 days and start at ฿2,275 for one-way flights and ฿4,550 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 23 Sep - Tue, 30 Sep
LAX
Los Angeles
DEN
Denver
฿4,550 Return, found 5 days ago
฿4,550
Return
found 5 days ago
Select Delta flight, departing Tue, 23 Sep from Los Angeles to Denver, returning Tue, 30 Sep, priced at ฿4,550 found 5 days ago
United
Tue, 23 Sep - Tue, 30 Sep
LAX
Los Angeles
DEN
Denver
฿6,835 Return, found 5 days ago
฿6,835
Return
found 5 days ago
Select United flight, departing Tue, 23 Sep from Los Angeles to Denver, returning Tue, 30 Sep, priced at ฿6,835 found 5 days ago
American Airlines
Thu, 2 Oct - Sat, 18 Oct
LAX
Los Angeles
DEN
Denver
฿7,780 Return, found 4 days ago
฿7,780
Return
found 4 days ago
Select American Airlines flight, departing Thu, 2 Oct from Los Angeles to Denver, returning Sat, 18 Oct, priced at ฿7,780 found 4 days ago
Copa
Wed, 10 Sep - Sun, 5 Oct
SJO
San José
DEN
Denver
฿12,295 Return, found 21 hours ago
฿12,295
Return
found 21 hours ago
Select Copa flight, departing Wed, 10 Sep from San José to Denver, returning Sun, 5 Oct, priced at ฿12,295 found 21 hours ago
Icelandair
Thu, 4 Sep - Wed, 17 Sep
MUC
Munich
DEN
Denver
฿21,035 Return, found 1 day ago
฿21,035
Return
found 1 day ago
Select Icelandair flight, departing Thu, 4 Sep from Munich to Denver, returning Wed, 17 Sep, priced at ฿21,035 found 1 day ago

Find the cheapest month to fly from Columbus (CMH) to Denver (DEN)

November is typically the cheapest month to fly

From ฿3,749 - ฿12,287 per traveller.

Graph displaying average flight prices per month

Flights to Southwest

Searching for cheap flights to Southwest? No travel company presents more choices than Expedia if you're looking to compare flights to Southwest. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Southwest. Expedia provides the cheapest flights to Southwest and you may find even greater savings if you combine your flight to Southwest with a hotel stay. Travellers who are flexible about flight times can benefit from last minute cheap flights to Southwest.

Expedia is the largest online travel agency which means that Expedia have access to cheap airline tickets. So make sure you check Expedia regularly for these bargain flights because the cheapest airline ticket deals sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Southwest for that period and let you choose your preferred time and airline.

Frequently asked questions

How do I find cheap flights to Southwest that have flexible change policies?
By using our convenient "No change fee" filter, that's how. Simply type in your dates and other details, click "Search," then select the box below the "Flexible change policies" subheading (look to the left of your screen). Expedia makes it simple to find cheap, flexible airfares to Southwest.
Which airlines fly to Southwest?
Book a seat with one of these airlines and dynamic Southwest will be all yours to discover:

  • United Airlines - 13,033 flights to or near Southwest each month, including 13,033 flights to Denver Intl. Airport (DEN) per month.
  • Southwest Airlines - 6,339 flights to or near Southwest each month, including 6,339 flights to Denver Intl. Airport (DEN) per month.
  • Frontier Airlines - 1,967 flights to or near Southwest each month, including 1,967 flights to Denver Intl. Airport (DEN) per month.

How can I find cheap tickets to Southwest?
You'll always walk away with an epic deal with Expedia, but our "flexible dates" feature makes it that much easier. Enter your preferred flight date, then check the flexible dates box above to see the cheapest prices for nearby days. ฿4,550 was the best price for a flight to Southwest in the last seven days.
How much is a flight to Southwest?
One-way flights departing from Los Angeles (LAX) sold for just ฿2,275 in the last seven days. During this time, the cost of a round-trip fare to Southwest varied between ฿4,550 and ฿27,305. If you spot a deal, grab it quickly — these fares don't stick around.
What are the most popular airports to fly into in Southwest?
Jet into Denver Intl. Airport (DEN) and enjoy all that Southwest has to offer. As the region's primary entry point, about 24,249 flights touch down here every month.
How much is a plane ticket to Southwest?
In the last seven days, fares to Southwest cost between ฿4,550 and ฿27,305. Prices usually rise as your travel date nears, so find a cheap flight today.
What months are the cheapest to book a flight to Southwest?
The perfect month to purchase well-priced airfares to Southwest is February. It's worth noting that in the USA, the most expensive time to reserve a ticket is the festive month of December.
Flights to Southwest information
Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Return price
฿4,550

Trending flights to Southwest

Prices were available within the past 7 days and start at ฿2,275 for one-way flights and ฿4,550 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, 3 Nov - Mon, 10 Nov
BKK
Bangkok
DEN
Denver
฿27,305 Return, found 3 days ago
฿27,305
Return
found 3 days ago
Select Air Canada flight, departing Mon, 3 Nov from Bangkok to Denver, returning Mon, 10 Nov, priced at ฿27,305 found 3 days ago
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