Best time to book Southwest flights for cheapest price

Best Time to Book Southwest Flights for Cheapest Price (2026 Guide)

Finding the best time to book Southwest flights for the cheapest price can feel confusing. Unlike most airlines, Southwest Airlines does not appear on major online travel agencies like Expedia or Google Flights. It also follows a unique pricing and fare policy that changes how and when you should book.

This comprehensive, research-based guide explains:

• When Southwest typically releases flights

• The best days and months to book

• How far in advance to reserve

• Whether Tuesday deals still exist

• How to use Southwest’s flexible policies to your advantage

• Data-backed booking strategies

• Expert insights from consumer research sources

All information is based on publicly available airline policies, travel data trends, and trusted consumer resources such as the U.S. Department of Transportation (DOT), Consumer Reports, and Harvard Business Review analyses on airline pricing behavior.

Why Southwest Pricing Works Differently

Before discussing timing, it’s important to understand Southwest’s unique model.

Key Differences from Other Airlines

Southwest Airlines:

• Does not list fares on third-party booking sites

• Offers two free checked bags (subject to weight/size limits)

• Does not charge change fees (fare difference applies)

• Releases flights in blocks rather than on a rolling daily schedule

According to the U.S. Department of Transportation, ancillary fees (like baggage fees) significantly increase total airfare costs across U.S. carriers. Southwest’s baggage policy alone can save travelers $60–$120 round-trip compared to competitors.

That means the “cheapest fare” isn’t just the ticket price—it’s the total travel cost.

When Does Southwest Release Flights?

Southwest Flight Schedule Release Pattern

Southwest does not load flights 11 months in advance like many airlines. Instead, it opens booking windows in batches.

Typically:

• Flights are released about 6–8 months in advance

• Release dates are announced on Southwest’s official website

Why This Matters

When Southwest opens a new booking window:

• Early fares are often lower

• Award availability is better

• Popular routes haven’t sold out

Based on publicly available information, there is no confirmed guarantee that release-day fares are always the lowest—but historically, they are often competitive before demand increases.

Best Time to Book Southwest Flights (Based on Data Trends)

1. Book 1–3 Months in Advance for Domestic Travel

According to travel pricing analyses reported by Consumer Reports and aggregated airfare studies:

• Domestic airfare is often lowest 1–3 months before departure

• For peak seasons, book 3–5 months ahead

Southwest typically follows broader airline pricing trends:

2. The “Tuesday Myth” — Is Tuesday Still the Cheapest Day?

You may have heard that Tuesday at 3 PM is the best time to book flights.

What the Research Says

Harvard Business Review analyses on airline revenue management explain that airlines now use dynamic pricing algorithms that update fares constantly based on:

• Demand

• Competitor pricing

• Load factors

• Search behavior

This means:

• There is no guaranteed “cheapest day” to book.

• Prices can change multiple times per day.

However, Southwest historically launches fare sales on Tuesdays, which can create competitive pricing midweek.

Practical Advice

Instead of waiting for Tuesday:

• Monitor fares regularly

• Set calendar reminders

• Recheck prices weekly

• Reprice if fares drop (Southwest allows this without fees)

Best Day of the Week to Fly (Not Book)

While booking day matters less, departure day matters more.

Based on airline industry trend data:

Flying midweek is often cheaper because business demand peaks Monday and Friday.

Best Months to Book Southwest Flights

Cheapest Travel Months (Generally)

For domestic U.S. travel:

• January (after New Year’s)

• February (excluding Presidents’ Day)

• September

• Early October

These months typically have lower demand.

Most Expensive Months

• June

• July

• December (especially holidays)

• March (spring break)

Southwest Fare Types and Pricing Strategy

Southwest offers:

• Wanna Get Away

• Wanna Get Away Plus

• Anytime

• Business Select

Cheapest Option

Wanna Get Away fares are usually the lowest.

However, they are non-refundable (travel credit issued instead).

Step-by-Step: How to Lock in the Cheapest Southwest Fare

Step 1: Book as Soon as Schedule Opens (For High-Demand Travel)

For holidays or peak seasons:

1. Check Southwest’s official schedule release page.

2. Log in early on release day.

3. Book immediately.

4. Monitor prices weekly.

Step 2: Set Price Monitoring Reminders

Because Southwest doesn’t show on Google Flights:

• Manually check Southwest.com

• Check weekly

• Use a spreadsheet to track price trends

Step 3: Reprice Your Ticket If Fares Drop

This is Southwest’s biggest advantage.

How to Reprice:

1. Log into your reservation.

2. Select “Change flight.”

3. Search same route/date.

4. If cheaper, select new fare.

5. Confirm change.

You receive:

• Travel credit (if Wanna Get Away)

• Refund to original payment (if refundable fare)

According to Southwest’s official policy, there are no change fees—only fare differences apply.

Southwest Sales: When Do They Happen?

Southwest frequently runs:

• Seasonal sales

• 72-hour flash sales

• Companion Pass promotions

Sales often appear:

• Late January

• Early June

• September

However, there is no publicly confirmed fixed schedule.

Southwest Rapid Rewards Strategy

Booking with points?

Southwest uses a revenue-based rewards system:

• Points required correlate with ticket price.

• When fares drop, points cost drops.

Expert Tip

Book early with points, then reprice if points drop—you’ll receive the difference back in points.

Does Time of Day Matter When Booking?

Based on publicly available information, there is no confirmed data showing that booking at a specific hour consistently produces cheaper Southwest fares.

Airlines use dynamic pricing models.

However:

• Early morning searches sometimes show more availability.

• Flash sales often launch in the morning.

Holiday Booking Strategy

For Thanksgiving & Christmas

• Book when schedule opens (6–8 months ahead).

• Monitor weekly.

• Expect prices to rise steadily.

According to U.S. Department of Transportation travel trend reports, holiday travel demand increases significantly, driving fare increases.

Real-World Example

Let’s compare two travelers flying Dallas to Orlando in July:

This example reflects common seasonal pricing behavior across U.S. airlines.

Hidden Savings with Southwest

Free Checked Bags

Most airlines charge $30–$40 per bag.

For a family of four:

• Other airlines: $240 round trip

• Southwest: $0

Even if base fare is slightly higher, total trip cost may be lower.

Advanced Booking Strategies

1. Split Tickets

Check:

• One-way pricing

• Different airports (if available)

2. Book Two Separate Reservations

Sometimes cheaper to book outbound and return separately.

3. Use Low-Fare Calendar

Southwest’s calendar view shows cheapest days in a month.

Common Mistakes to Avoid

• Waiting too long for a “price drop”

• Ignoring holiday demand spikes

• Forgetting to reprice

• Booking peak departure days unnecessarily

How External Factors Affect Southwest Pricing

Airfare pricing is influenced by:

• Fuel costs

• Demand spikes

• Weather events

• Economic conditions

Harvard Business Review discussions on airline revenue management confirm pricing responds to real-time market changes.

Is There a “Magic Number” of Days Before Departure?

Industry-wide data often suggests:

• Around 45–70 days before departure for domestic flights

However, Southwest’s flexible repricing makes early booking safer.

Comparison: Southwest vs Other Airlines (Cheapest Booking Strategy)

Expert-Backed Booking Framework

Based on airline pricing research and consumer travel data:

1. Book early for peak travel.

2. Book 1–3 months ahead for normal trips.

3. Reprice regularly.

4. Fly midweek.

5. Use points strategically.

Frequently Asked Questions (FAQ)

1. What is the cheapest day to book Southwest flights?

There is no confirmed cheapest booking day. Prices change dynamically.

2. Is Tuesday still the cheapest day to buy flights?

Not consistently. Airlines now use automated pricing systems.

3. How far in advance should I book Southwest flights?

1–3 months for regular travel; 3–5 months for peak travel.

4. Do Southwest prices drop closer to departure?

Rarely. Prices usually increase as seats fill.

5. When does Southwest release new flights?

About 6–8 months in advance, in schedule blocks.

6. Can I get money back if the price drops?

Yes. You can rebook and receive travel credit or refund (depending on fare type).

7. Are Southwest sales predictable?

They happen multiple times yearly, but there is no fixed published calendar.

8. Is it cheaper to book one-way flights?

Sometimes. Always compare.

9. Do Southwest points follow ticket prices?

Yes. Points are revenue-based.

10. Is early morning booking cheaper?

There is no confirmed consistent pricing advantage by time of day.

Final Verdict: When Is the Best Time to Book?

Because Southwest allows free changes, the safest strategy is:

• Book early.

• Monitor prices.

• Reprice if fares drop.

This approach removes risk while maximizing savings.

Key Takeaways

• There is no universal cheapest day to book.

• Midweek travel is often cheaper.

• Holiday travel should be booked early.

• Southwest’s no-change-fee policy is your biggest advantage.

• Repricing is the most powerful savings tool.By combining timing strategy, flexible policies, and demand awareness, travelers can consistently secure the cheapest Southwest fares—without relying on myths or guesswork