How to identify your Southwest aircraft in 3 steps
To quickly determine what type of plane is on your Southwest flight, open your boarding pass or itinerary and look for the flight number and date. Then visit the Southwest aircraft schedule tool, enter the flight number, and review the listed tail number and aircraft type. Alternatively, search by reservation confirmation to see the same details before check‑in. Seats, overhead bin space, and boarding procedures can vary by aircraft, so knowing the exact type helps you plan for comfort on board.
Southwest fleet overview
Southwest operates a single‑type fleet, which simplifies training, maintenance, and the passenger experience. The majority of flights use two narrow‑body aircraft: the Boeing 737 family (737‑700, 737‑800, and 737 MAX variants). A smaller number of regional jet flights operate with Embraer E‑Series aircraft on thinner routes. Understanding which type you are likely to fly helps set expectations for seating, cabin noise, and ground time at your local airport.
Boeing 737 family
The Boeing 737 is the backbone of Southwest operations, used on most point‑to‑point domestic and many short international routes. The 737‑700 typically has 2 cabin doors and 143 to 149 seats in Southwest’s layout; the 737‑800 has 4 cabin doors and about 158 to 168 seats; and the MAX variants (737 MAX 7, MAX 8, and MAX 200) modernize engines and systems while maintaining similar seat counts and cabin dimensions. These aircraft feature two classes, main cabin boarding, and frequent short turnarounds at high‑volume airports.
Embraer E‑Series
On select thinner routes, Southwest uses Embraer E‑Series regional jets, mainly the E170 and E175. These aircraft typically seat 72 to 88 passengers in a single cabin and operate with 2 cabin doors. E‑series flights often appear at smaller or secondary airports where larger 737s are less efficient. The cabin is more compact, which can mean quicker boarding and deplaning on regional hops.
What to expect in aircraft
While cabin layouts are standardized across Southwest, each aircraft type can feel different in practice. Larger 737 variants offer more overhead storage and may feel less crowded on busy routes, while E‑series jets provide a cozier regional experience. Boarding procedures are similar, but knowing whether your flight uses a 737 or an E‑Series can help you anticipate gate arrival times, boarding order, and how long it takes to taxi. For international or longer legs, 737 equipment is generally preferred for range and comfort.
How aircraft type can affect your experience
The type of plane influences practical aspects of your trip, from seat room to noise levels. All Southwest aircraft offer 2x2 main cabin seating with no middle seats, but seat pitch can vary slightly between aircraft generations and refurbishments. E‑series cabins may feel quieter on short hops, while newer 737 MAX aircraft often include updated cabin air filters and lighting. Understanding these differences helps you set realistic expectations and choose flights that best suit your preferences when rebooking.
Common routes and typical equipment
Below is a concise overview of typical aircraft types you may see on popular Southwest routes and why each type is used. Note that equipment can change frequently due to operational needs, seasonal demand, and network reconfiguration.
| Route type | Typical aircraft | Seating (typical) | Why this aircraft |
|---|---|---|---|
| High‑volume city pairs (e.g., BWI–LAS, DAL–HOU) | Boeing 737‑800 or MAX 8 | 158–168 seats | Efficiency, frequency, and capacity for demand |
| Short regional hops (e.g., MCI–STL, SAT–AUS) | Embraer E170/E175 | 72–88 seats | Right‑sized capacity and ground performance at smaller airports |
| Longer point‑to‑point (e.g., PHX–DEN, BWI–MDW) | Boeing 737‑700/MAX 7 or MAX 8 | 135–168 seats | Range, comfort, and load factor optimization |
How to check the exact aircraft before you fly
You can confirm the aircraft for any upcoming Southwest flight using these reliable methods: review your boarding pass or itinerary online; search the flight number on the Southwest aircraft schedule tool; or check your reservation confirmation email or app for tail number and type. These sources are updated in near real time and reflect any aircraft changes due to operational needs.
What to do if the aircraft changes
If Southwest changes the aircraft on your reservation, your boarding pass will be updated automatically, and you will receive a notification if you have alerts enabled. A different aircraft may alter boarding order timing, overhead space availability, or cabin noise, but your fare class and benefits remain the same. Rebooking is rarely necessary due to equipment changes.
Tips for choosing flights based on aircraft
- Check the aircraft type when comparing flight times, especially if you prefer newer cabins or larger overhead bins.
- Know that all Southwest cabins offer 2x2 seating with no middle seats, so comfort differences are generally minimal.
- If you want quieter short hops, consider routes typically served by E‑series equipment.
- For long routes or busy travel periods, flights with 737 MAX or 737‑800 often have more stable scheduling and newer cabin features.
Bottom line
To quickly find what type of plane your Southwest flight uses, open your boarding pass and check the aircraft details or look up the flight number on Southwest’s aircraft schedule tool. Most flights operate with Boeing 737 variants, while select regional routes use Embraer E‑Series aircraft. Knowing the equipment helps you anticipate space, noise, and operational characteristics without changing your fare or benefits.