Cheap Flights to Southwest

View ₩137,300 flight on Thu, Oct 23, 2025Opens 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 ₩137,300 for one-way flights and ₩284,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Oct 23 - Sun, Oct 26
OKC
Oklahoma City
DEN
Denver
₩284,300 Roundtrip, found 1 day ago
₩284,300
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 23 from Oklahoma City to Denver, returning Sun, Oct 26, priced at ₩284,300 found 1 day ago
Delta
Tue, Aug 5 - Wed, Aug 13
OKC
Oklahoma City
DEN
Denver
₩315,700 Roundtrip, found 1 day ago
₩315,700
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Aug 5 from Oklahoma City to Denver, returning Wed, Aug 13, priced at ₩315,700 found 1 day ago
American Airlines
Fri, Aug 15 - Thu, Aug 21
RDU
Raleigh
DEN
Denver
₩398,600 Roundtrip, found 6 days ago
₩398,600
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Aug 15 from Raleigh to Denver, returning Thu, Aug 21, priced at ₩398,600 found 6 days ago
Alaska Airlines
Sat, Dec 27 - Thu, Jan 8
ICN
Seoul
DEN
Denver
₩960,800 Roundtrip, found 6 days ago
₩960,800
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Dec 27 from Seoul to Denver, returning Thu, Jan 8, priced at ₩960,800 found 6 days ago
Korean Air
Thu, Dec 4 - Thu, Dec 11
ICN
Seoul
DEN
Denver
₩1,024,300 Roundtrip, found 3 days ago
₩1,024,300
Roundtrip
found 3 days ago
Select Korean Air flight, departing Thu, Dec 4 from Seoul to Denver, returning Thu, Dec 11, priced at ₩1,024,300 found 3 days ago

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

August is typically the cheapest month to fly

From ₩142,852 - ₩458,497 per traveler.

Graph displaying average flight prices per month

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 Denver. Expedia provides the cheapest flights to many destinations in Denver and you may find even greater savings if you combine your flight with a hotel stay in Southwest.

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. ₩284,300 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 Oklahoma City (OKC) sold for just ₩137,300 in the last seven days. During this time, the cost of a round-trip fare to Southwest varied between ₩284,300 and ₩1,024,300. 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 ₩284,300 and ₩1,024,300. 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
Roundtrip price
₩284,300

Trending flights to Southwest

Prices were available within the past 7 days and start at ₩137,300 for one-way flights and ₩284,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Oct 23 - Wed, Oct 29
ICN
Seoul
DEN
Denver
₩930,200 Roundtrip, found 3 days ago
₩930,200
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Oct 23 from Seoul to Denver, returning Wed, Oct 29, priced at ₩930,200 found 3 days ago
*Available to Expedia members.