Cheap Flights to Southwest

View NZ$189 flight on Wed, 20 May 2026Opens in a new window

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Cheap Tickets to Southwest

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 20 May - Wed, 27 May
SFO
San Francisco
DEN
Denver
NZ$376 Return, found 18 hours ago
NZ$376
Return
found 18 hours ago
Select Delta flight, departing Wed, 20 May from San Francisco to Denver, returning Wed, 27 May, priced at NZ$376 found 18 hours ago
Alaska Airlines
Tue, 19 May - Sat, 30 May
SFO
San Francisco
DEN
Denver
NZ$445 Return, found 5 days ago
NZ$445
Return
found 5 days ago
Select Alaska Airlines flight, departing Tue, 19 May from San Francisco to Denver, returning Sat, 30 May, priced at NZ$445 found 5 days ago
American Airlines
Wed, 20 May - Wed, 27 May
SFO
San Francisco
DEN
Denver
NZ$477 Return, found 18 hours ago
NZ$477
Return
found 18 hours ago
Select American Airlines flight, departing Wed, 20 May from San Francisco to Denver, returning Wed, 27 May, priced at NZ$477 found 18 hours ago
United
Wed, 20 May - Wed, 27 May
SFO
San Francisco
DEN
Denver
NZ$479 Return, found 18 hours ago
NZ$479
Return
found 18 hours ago
Select United flight, departing Wed, 20 May from San Francisco to Denver, returning Wed, 27 May, priced at NZ$479 found 18 hours ago
Icelandair
Mon, 4 May - Sun, 10 May
HEL
Helsinki
DEN
Denver
NZ$1,635 Return, found 22 hours ago
NZ$1,635
Return
found 22 hours ago
Select Icelandair flight, departing Mon, 4 May from Helsinki to Denver, returning Sun, 10 May, priced at NZ$1,635 found 22 hours 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. NZ$376 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 San Francisco (SFO) sold for just NZ$189 in the last seven days. During this time, the cost of a round-trip fare to Southwest varied between NZ$376 and NZ$2,047. 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 travelling 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 NZ$376 and NZ$2,047. 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
Return price
NZ$376

Trending flights to Southwest

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Tahiti Nui
Sun, 1 Nov - Tue, 17 Nov
AKL
Auckland
DEN
Denver
NZ$2,047 Return, found 1 day ago
NZ$2,047
Return
found 1 day ago
Select Air Tahiti Nui flight, departing Sun, 1 Nov from Auckland to Denver, returning Tue, 17 Nov, priced at NZ$2,047 found 1 day ago

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