Southwest Airlines Summer Sale 2025 – Cheap Flights from $39 (Ends 4/24!)
Looking for cheap summer flights in 2025? ✈️ Southwest Airlines just launched a limited-time summer flight sale with one-way fares starting at just $39! This is one of the best deals available for budget travelers this season. But act fast — this deal ends Thursday, April 24 at 11:59 p.m. PT.
Click here to view the Southwest sale →
Why This Southwest Summer Flight Sale Is Worth It
While it may not be quite as massive as Southwest’s annual anniversary sale in June, this is one of the better flight sales we’ve seen so far this year. Some routes are priced lower than we’ve seen in months, especially from cities like Chicago (Midway). And with summer fares on the rise, it’s a great time to lock in a deal on Southwest flights.
Travel Dates + Sale Details
- Sale ends: Thursday, April 24 at 11:59 p.m. PT
- Travel valid:
- Continental U.S.: 5/13–10/2/25 (blackout on 9/1/25)
- U.S. to/from Hawaii, Intl., PR: 8/17–10/2/25
- Interisland Hawaii: 5/13–7/2/25
- Discount code: None needed
Example Southwest Flight Deals
Here are some of the standout one-way deals:
- $39 – Atlanta → Tampa
- $39 – Chicago (Midway) → Louisville, Minneapolis, Nashville, Pittsburgh, Indianapolis, St. Louis
- $88 – Los Angeles → Las Vegas
- $129 – New York (LaGuardia) → Baltimore/Washington
- $229 – Phoenix → Cancun
➡️ Check your own airport too — there are plenty of hidden gems with amazing prices on Southwest flights!
⚡ Booking Tip
Fares are expected to rise again soon, so if you see something that works for your summer travel plans, book now and cancel later if needed — Southwest Airlines offers free changes and no cancellation fees. If you’re new to booking travel on points or want to pair this flight deal with a hotel stay, check out my favorite travel credit cards for extra savings.
Let me know if you score a deal! 🌍
