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Cheap Flights to Southwest

View ₩173,800 flight on Tue, Sep 8, 2026Opens in a new window

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How much is the cheapest flight to Southwest?

Prices were available within the past 7 days and start at ₩173,800 for one-way flights and ₩282,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Sep 12 - Tue, Sep 15
MCI
Kansas City
DEN
Denver
₩282,200 Roundtrip, found 23 hours ago
₩282,200
Roundtrip
found 23 hours ago
Select Delta flight, departing Sat, Sep 12 from Kansas City to Denver, returning Tue, Sep 15, priced at ₩282,200 found 23 hours ago
United
Wed, Sep 9 - Sat, Sep 12
MCI
Kansas City
DEN
Denver
₩326,900 Roundtrip, found 23 hours ago
₩326,900
Roundtrip
found 23 hours ago
Select United flight, departing Wed, Sep 9 from Kansas City to Denver, returning Sat, Sep 12, priced at ₩326,900 found 23 hours ago
American Airlines
Wed, Sep 9 - Sat, Sep 12
MCI
Kansas City
DEN
Denver
₩341,500 Roundtrip, found 23 hours ago
₩341,500
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Wed, Sep 9 from Kansas City to Denver, returning Sat, Sep 12, priced at ₩341,500 found 23 hours ago
Air Canada
Fri, Oct 16 - Sun, Oct 18
ICN
Seoul
DEN
Denver
₩1,663,300 Roundtrip, found 7 hours ago
₩1,663,300
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Fri, Oct 16 from Seoul to Denver, returning Sun, Oct 18, priced at ₩1,663,300 found 7 hours ago
Alaska Airlines
Mon, Nov 2 - Sat, Nov 21
ICN
Seoul
DEN
Denver
₩1,705,600 Roundtrip, found 1 day ago
₩1,705,600
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Nov 2 from Seoul to Denver, returning Sat, Nov 21, priced at ₩1,705,600 found 1 day ago

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. ₩282,200 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 Chicago (ORD) sold for just ₩173,800 in the last seven days. During this time, the cost of a round-trip fare to Southwest varied between ₩282,200 and ₩1,705,600. 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.
When is the cheapest time to fly to Southwest?
If you'd rather spend your money enjoying the best of Southwest rather than on flying there, jet off earlier in the week. The most cost-effective day to travel is normally Tuesday, with Monday a close second. With many folks traveling over the weekend, Saturday often has the highest airfares.
How much is a plane ticket to Southwest?
In the last seven days, fares to Southwest cost between ₩282,200 and ₩1,705,600. 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.

Travel information

Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Roundtrip price
₩282,200

Trending flights to Southwest

Prices were available within the past 7 days and start at ₩173,800 for one-way flights and ₩282,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 17 - Wed, Nov 18
ICN
Seoul
DEN
Denver
₩1,605,600 Roundtrip, found 4 hours ago
₩1,605,600
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Nov 17 from Seoul to Denver, returning Wed, Nov 18, priced at ₩1,605,600 found 4 hours ago
*Available to Expedia members.