Southwest Fare Calendar Guide: Find Cheap Flights Fast (2027)

Finding affordable airfare often feels like trying to solve a complex puzzle with moving pieces. Fares fluctuate wildly based on algorithms, season, and demand, making it difficult to know if you’re getting a true deal.

If you frequently fly Southwest Airlines, you have access to one of the most powerful price-comparison tools in the travel industry: the Southwest Low Fare Calendar.

Unlike Online Travel Agencies (OTAs) like Expedia or Booking.com—which do not index Southwest flights—the Low Fare Calendar gives you direct access to Southwest’s visual fare pricing grid. This tool lets you view an entire month’s worth of fares in a single view, allowing you to instantly pinpoint the lowest price days.

This comprehensive guide breaks down how to use the Southwest Fare Calendar, maximize points, avoid common traps, and rebook flights to claim cash or credit refunds when prices drop.

1. Understanding the Southwest Low Fare Calendar

The Southwest Low Fare Calendar is a dedicated search view provided directly on Southwest.com and the Southwest mobile app. Rather than forcing you to select specific travel dates upfront, it displays a matrix showing the lowest starting price for every day of a selected month.

+-----------------------------------------------------------------------+
|                    SOUTHWEST LOW FARE CALENDAR                        |
|                                                                       |
|  [ Departure City: DAL ]  ------->  [ Arrival City: MCO ]             |
|  [ Select Month: OCTOBER ]          [ Display: Dollars ($) | Points ] |
+-----------------------------------------------------------------------+
|  SUN      |  MON      |  TUE      |  WED      |  THU      |  FRI      |
|           |           |  $79 *    |  $79 *    |  $129     |  $189     |
|           |           |           |           |           |           |
|  SAT      |  SUN      |  MON      |  TUE      |  WED      |  THU      |
|  $99      |  $149     |  $119     |  $69 *    |  $69 *    |  $139     |
+-----------------------------------------------------------------------+
(* Denotes target low-fare days)

Primary Search Intent & Value Proposition

• Search Intent: Commercial / Informational. Travelers accessing this tool want to save money by adjusting their travel plans around lower airfare rates.

• Key Advantage: Southwest does not list its flights on third-party aggregators (Google Flights, Kayak, Skyscanner). The Low Fare Calendar is the primary tool available to visualize flight cost trends for Southwest routes.

2. Step-by-Step Guide: How to Use the Calendar

Navigating the Southwest Low Fare Calendar takes less than two minutes once you know where to look.

Step 1: Access the Tool

Go to Southwest.com. On the home flight booking widget, select the tab labeled “Low Fare Calendar” (located adjacent to the standard flight search box).

Step 2: Input Route Details

1. Choose between One-Way or Round Trip.

2. Enter your Departure City and Arrival City.

3. Select your target Month.

4. Specify the number of passengers.

Pro Tip: Always search one-way segments individually. Searching one-way legs gives you flexibility to pair a low cash fare on your outbound flight with a Rapid Rewards points redemption on your return flight.

Step 3: Analyze the Pricing Grid

Once you click Search, the system returns a monthly grid showing daily starting prices.

• Fares displayed on the initial calendar view represent the Wanna Get Away base tier (the lowest tier available).

• Click on desired dates to reveal specific flight times, layovers, and upgraded fare tiers (Wanna Get Away Plus, Anytime, Business Select).

3. Advanced Hacks to Unlock Maximum Savings

Using the calendar is straightforward, but leveraging advanced travel hacks unlocks deeper discounts.

       [ HIGH PRICE WINDOW ]                     [ LOW FARE SWEET SPOT ]
 Friday / Sunday / Holiday Peaks            Tuesdays / Wednesdays / Saturdays
+-------------------------------+          +-------------------------------+
| * Heavy business travelers    |          | * Lower travel demand         |
| * Weekend getaway rushes      |   VS     | * Highest seat availability   |
| * Peak fare pricing applied   |          | * Lowest base tier fares      |
+-------------------------------+          +-------------------------------+

Hack 1: Fly on Off-Peak Travel Days

Airfare pricing is driven by demand. The lowest prices on the Southwest calendar consistently land on:

• Tuesdays and Wednesdays: Lowest demand for both corporate and leisure travelers.

• Saturdays: Lower demand for business travel and mid-week vacationers.

Fridays and Sundays carry higher price tags due to weekend travel. Shifting a trip from Sunday to Saturday can cut airfare costs significantly.

Hack 2: Rapid Rewards Points Arbitrage

Southwest’s Rapid Rewards program uses a dynamic pricing model: the point cost of a flight is tied directly to its cash price.

• When a cash fare drops on the Low Fare Calendar, the required points decrease proportionally.

• You can toggle between “Dollars” and “Points” at the top of the Low Fare Calendar to compare redemptions.

• Aim for a redemption value of at least 1.3 to 1.5 cents per point.

Example Scenario:

A flight costs $150 cash or 10,000 Rapid Rewards points.

$\text{Value per point} = \frac{\$150}{10,000 \text{ points}} = \$0.015 \text{ (1.5 cents per point)}$.

If the cash fare drops to $90, the point requirement automatically decreases to roughly 6,000 points.

Hack 3: Track the Schedule Extension Releases

Southwest releases its flight schedule in rolling 6- to 7-month blocks, rather than 330 days out like legacy carriers.

When Southwest opens a new schedule window, the Low Fare Calendar populates with initial base-tier seats. Check the Southwest “Flight Schedules” page to mark release dates on your calendar and book popular holiday periods early.

4. Southwest Fare Classes Explained

When selecting dates on the calendar, understand what each fare tier includes:

5. Rebooking Hack: Claiming Price Drop Credits

Southwest does not charge change or cancellation fees. If you book a flight and the price later drops on the Low Fare Calendar, you can rebook the exact same flight and claim the difference.

Step 1: Book Flight ($200)  --->  Step 2: Monitor Calendar  --->  Step 3: Price Drops ($130)
                                                                             |
                                                                             v
                                                                 Modify Booking on App
                                                                             |
                                                                             v
                                                                 $70 Retained as Flight
                                                                 Credit (or Points Redeposit)

Step-by-Step Rebooking Instructions:

1. Open your reservation under “My Account” on Southwest.com or the app.

2. Select “Change Flight.”

3. Choose your current itinerary and search the updated calendar dates.

4. Select the new lower price.

5. Confirm the change:

   • Paid Cash: You will receive a non-expiring Southwest Flight Credit for the difference.

   • Paid Points: The point difference will redeposit instantly into your Rapid Rewards account.

6. Common Pitfalls to Avoid

Avoid these frequent mistakes when using the Southwest Low Fare Calendar:

• Assuming Low Fares Apply to All Group Members: Calendar prices show the lowest available fare for a single ticket. If only one seat remains at the lowest tier and you search for a group of four, the calendar will quote the higher fare tier for all four tickets. Fix: Search for single passengers first to check remaining seat inventory at the lowest tier.

• Ignoring Nearby Alternative Airports: Southwest operates heavily in multi-airport regions (e.g., Chicago Midway [MDW] vs. O’Hare [ORD], or Dallas Love Field [DAL] vs. DFW). Fix: Compare nearby regional hubs on the calendar if your primary route is priced high.

• Waiting Too Long for Peak Holiday Travel: While mid-week off-peak flights drop closer to departure, peak holiday seats (Thanksgiving, Christmas, Spring Break) rarely drop late. Fix: Book holiday flights as soon as the schedule extension launches.

7. Frequently Asked Questions (FAQs)

What day of the week is best to search for cheap Southwest flights?

While fares update dynamically throughout the week, the lowest actual travel days are typically Tuesdays, Wednesdays, and Saturdays due to lower passenger demand.

Do Southwest prices go down closer to departure?

Not usually. Southwest uses dynamic pricing that increases as seat availability shrinks closer to departure. However, if a fare does decrease after you book, you can rebook without fees and retain the price difference as a flight credit.

Does the Low Fare Calendar include taxes and fees?

Yes. The prices displayed on the Southwest Low Fare Calendar include mandatory government taxes and airport fees, providing a transparent breakdown before checkout.

Can I use the Low Fare Calendar when booking with Rapid Rewards points?

Yes. You can toggle the calendar view from “Dollars” ($) to “Points” at the top of the interface to view award flight availability across an entire month.