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Airlines: Delta Air Lines vs. Southwest Airlines

Quick Verdict

Delta Air Lines is a strong choice for passengers prioritizing in-flight entertainment, a wide route network, and premium cabin experiences. Southwest Airlines is better for those seeking budget-friendly fares, flexible change/cancellation policies, and high customer satisfaction in economy/basic economy.

Key features – Side-by-Side

AttributeDelta Air LinesSouthwest Airlines
On-time arrival rate83.46% in 2024, 88.6% in November 2024, 79.7% in December 2024, 80.6% in February 202582.27% (North America's most on-time airline by Cirium)
Baggage handling performance49 mishandled bags for every 10,000 passengers in 2024, mishandled baggage rate was 0.60% in December 2024, 0.39% in November 2024, 0.50% in December 2023, 0.55% for the full year 2024Unmatched baggage policy, at least 2 bags free
Customer satisfaction ratingsRanked second in customer satisfaction in the first/business segment with a score of 724 (J.D. Power 2025), Ranked highest in premium economy for the third consecutive year with a score of 717 (J.D. Power 2025), Ranked third in economy/basic economy with a score of 662 (J.D. Power 2025), Ranked No. 2 in ACSI travel surveyRanked highest in customer satisfaction in the economy/basic economy segment for a fourth consecutive year in 2025, with an ACSI score of 80. #1 in Airline Staff and Level of Trust.
In-flight entertainment optionsDelta Studio offers up to 300 movies, options from HBO, Paramount+, MasterClass, and 18 channels of live satellite television. Partnership with YouTube, MasterClass, Spotify, and Peloton. New Delta Sync seat back entertainment experience is expected to include a 4K HDR QLED display, Bluetooth capabilities, a 96-terabyte storage system, and an advanced recommendation engine. Free Wi-Fi is available for SkyMiles members on most flights.Free inflight entertainment (movies, live TV, on-demand TV series) via WiFi-enabled portal. Free texting via iMessage and WhatsApp. Wi-Fi available for purchase at $8 per device. No seatback screens.
Seat comfort and legroomEconomy class seats are typically 17.2 to 18.5 wide with 30 to 32 of legroom. Delta Comfort Plus offers 34 inches of pitch.Retrofitting aircraft for 'Extra Legroom seats.' Roughly one-third of seats across the fleet to offer extended legroom. Standard seats will have standard legroom.
Food and beverage qualityOffers complimentary refreshments on flights over 250 miles, including non-alcoholic beverages and light snacks. Chef-curated menus are available for an additional fee.Complimentary snacks (pretzels or crackers) and beverages (water, coffee, soda, juice). Alcoholic beverages available for purchase. No full meals offered.
Change and cancellation flexibilityHigh fees for changes.Flights can be canceled or changed without fees (except for Basic fares). Can cancel up to 10 minutes before departure with no cancellation fees (except for Basic fares). Credit for amount paid if non-refundable flight is canceled.
Frequent flyer program benefitsWi-Fi on board is free for SkyMiles members. SkyMiles members can customize their in-flight entertainment experience via the Fly Delta app.Southwest Rapid Rewards is an easy-to-use frequent flyer program.
Route network coverageConnects destinations across six continents. Offers flights to more than 325 destinations in 60 countries.Serves 117 airports across 11 countries.
Average ticket priceNot availableKnown for budget-friendly fares.
Cabin cleanlinessGenerally receives positive reviews for cabin cleanliness.Generally clean and well-maintained.
Customer service responsivenessGenerally has a reputation for being responsive and professional. Offers dedicated services for special needs passengers. Mobile app and website are user-friendly. Some customer reviews mention poor customer service response.Customer-oriented, friendly, and trustworthy. Well-trained flight crews and ground personnel.

Overall Comparison

Delta: 83.46% on-time arrival rate (2024), 49 mishandled bags per 10,000 passengers (2024). Southwest: 82.27% on-time arrival rate, Free baggage allowance.

Pros and Cons

Delta Air Lines

Pros:
  • Extensive in-flight entertainment options
  • Wide route network
  • Generally positive reviews for cabin cleanliness
  • Responsive and professional customer service (generally)
  • Free Wi-Fi for SkyMiles members
  • Comfortable seats
Cons:
  • High fees for changes and cancellations
  • Some customer reviews mention poor customer service response
  • Higher mishandled baggage rate in December 2024 compared to previous periods

Southwest Airlines

Pros:
  • On-time arrival rate
  • Baggage handling performance
  • Customer satisfaction ratings
  • In-flight entertainment options
  • Seat comfort and legroom
  • Food and beverage quality
  • Change and cancellation flexibility
  • Frequent flyer program benefits
  • Route network coverage
  • Average ticket price
  • Cabin cleanliness
  • Customer service responsiveness
Cons:
  • No major disadvantages reported.

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