Cheap Flights to Southwest , CO from CA $178

View CA $178 flight on Wed, May 13, 2026Opens in a new window

Popular airlines

  • Frontier Airlines

  • Alaska Airlines

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • JetBlue Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Southwest?

Prices were available within the past 7 days and start at CA $178 for one-way flights and CA $337 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Apr 28 - Wed, Apr 29
YVR
Vancouver
DEN
Denver
CA $337 Roundtrip, found 6 hours ago
CA $337
Roundtrip
found 6 hours ago
Select United flight, departing Tue, Apr 28 from Vancouver to Denver, returning Wed, Apr 29, priced at CA $337 found 6 hours ago
WestJet
Mon, Jun 15 - Wed, Jun 24
YYC
Calgary
DEN
Denver
CA $348 Roundtrip, just found
CA $348
Roundtrip
just found
Select WestJet flight, departing Mon, Jun 15 from Calgary to Denver, returning Wed, Jun 24, priced at CA $348 just found
American Airlines
Wed, May 13 - Wed, May 20
DTW
Detroit
DEN
Denver
CA $355 Roundtrip, found 2 hours ago
CA $355
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, May 13 from Detroit to Denver, returning Wed, May 20, priced at CA $355 found 2 hours ago
Delta
Wed, Apr 29 - Wed, May 6
YYC
Calgary
DEN
Denver
CA $379 Roundtrip, just found
CA $379
Roundtrip
just found
Select Delta flight, departing Wed, Apr 29 from Calgary to Denver, returning Wed, May 6, priced at CA $379 just found
Air Canada
Tue, Jun 9 - Fri, Jun 12
YYC
Calgary
DEN
Denver
CA $392 Roundtrip, found 2 hours ago
CA $392
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Tue, Jun 9 from Calgary to Denver, returning Fri, Jun 12, priced at CA $392 found 2 hours ago

Frequently asked questions

How do I find cheap flights to Southwest that have flexible change policies?
It's as easy as 1-2-3 with Expedia. Firstly, enter your travel dates and click on the "Search" button. Next step? Check "No change fee" directly below the "Flexible change policies" heading to the left of the screen. Step 3. Book your cheap and flexible airfare to Southwest.
Which airlines fly to Southwest?
Reserve your seat with one of these airlines and the dynamic region of Southwest will be yours to explore:

  • United Airlines - 13,845 flights to or near Southwest each month, including 13,845 flights to Denver Intl. Airport (DEN) per month.
  • Southwest Airlines - 6,699 flights to or near Southwest each month, including 6,699 flights to Denver Intl. Airport (DEN) per month.
  • Frontier Airlines - 1,547 flights to or near Southwest each month, including 1,547 flights to Denver Intl. Airport (DEN) per month.

How can I find cheap tickets to Southwest?
Start searching as early as possible, consider nearby airports, use points or miles — there are loads of ways! Another one is to take advantage of Expedia's "flexible dates" function. Search for a Southwest flight, then check out the prices for nearby dates. In the last seven days, the lowest price for a flight to Southwest was CA $337.
How much is a flight to Southwest?
There were lots of low-cost fares for the taking in the last seven days, with the price of a return ticket to Southwest ranging between CA $337 and CA $392. Many lucky travellers scored one-way seats from Detroit (DTW) for just CA $178.
What are the most popular airports to fly into in Southwest?
The main entryway to Southwest, around 24,420 flights land at Denver Intl. Airport (DEN) every month. Look for an unbeatable deal, lock in your fare and prepare to discover this amazing region.
When is the cheapest time to fly to Southwest?
Flying on a Tuesday, followed by a Monday, is generally the best way to nab the cheapest flight. Stay away from the weekends if you can, because Saturday is typically the costliest day. Spend the dollars you saved having a blast in Southwest instead!
How much is a plane ticket to Southwest?
Ticket prices to Southwest ranged from CA $337 to CA $392 in the last seven days. Usually, the sooner you make a reservation, the better the price.
What months are the cheapest to book a flight to Southwest?
A cheap month to bag a fantastic deal to Southwest is February, while prices rise considerably in December. Give this month a miss if you're watching your pennies.

Travel information

Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Roundtrip price
CA $336

Trending flights to Southwest

Prices were available within the past 7 days and start at CA $178 for one-way flights and CA $337 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Apr 28 - Wed, Apr 29
YVR
Vancouver
DEN
Denver
CA $337 Roundtrip, found 6 hours ago
CA $337
Roundtrip
found 6 hours ago
Select United flight, departing Tue, Apr 28 from Vancouver to Denver, returning Wed, Apr 29, priced at CA $337 found 6 hours ago

Explore a world of travel with Expedia

*Available to Expedia members.