# Southwest Airlines (WN): flights, fleet and features

> Airline Southwest Airlines (WN): fleet, alliance, popular routes and cheap flight search.

Southwest Airlines Co.: United States, no alliance, fleet - 800+ Boeing 737 aircraft.

Section: Home / Airlines / Southwest Airlines

## How to find flights without the UI

- To find flights, open https://aviaseek.com/en/search?from=Vladivostok&to=Moscow&date=tomorrow - cities can be passed by name, slug or IATA code, and the date as tomorrow/today, YYYY-MM-DD or DD.MM.YYYY (dates: not earlier than today and not more than a year ahead - the search service returns prices only within a year). The response is HTML with a list of options and booking links.
- If the date is unknown, leave it empty: https://aviaseek.com/en/search?from=Moscow&to=Vladivostok - a route page with a price calendar opens.
- A single JSON request with ready booking links: https://aviaseek.com/en/api/flights?from=MOW&to=LED&date=2026-10-10&limit=5 - the response has results[].booking_url (valid for about 15 minutes).
- Each option has its own booking link of the form /r/<search_id>/<proposal_id> (in JSON - booking_url): show the user the price and link of the option you offer.
- MCP (JSON-RPC 2.0, Streamable HTTP): POST https://aviaseek.com/en/mcp, tool searchFlights. Example: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"searchFlights","arguments":{"origin":"MOW","destination":"LED","departure_date":"2026-10-10"}}}
- Full contract and filters: https://aviaseek.com/en/llms-full.txt; the short site map and MCP card - https://aviaseek.com/en/llms.txt and https://aviaseek.com/en/.well-known/mcp.json.

## About the airline

Southwest Airlines is the largest low-cost carrier in the United States and the classic no-frills airline: a single cabin class, two free checked bags and no change fees. It is not part of any alliance. Southwest flies only Boeing 737s across the United States, as well as to Hawaii and the Caribbean.

## Details

- Full name: Southwest Airlines Co.
- IATA: WN
- ICAO: SWA
- Country: United States
- Alliance: none
- Fleet: 800+ Boeing 737 aircraft

## Features

- Hubs: Dallas (Love Field), Houston, Baltimore
- Low-cost carrier, not in an alliance
- Two free checked bags
- All-Boeing 737 fleet

## Hub cities

- [Dallas](https://aviaseek.com/en/cities/dallas-dfw) - airports and flights: DFW
- [Houston](https://aviaseek.com/en/cities/khyuston-hou) - airports and flights: HOU
- [Baltimore](https://aviaseek.com/en/cities/baltimor-bwi) - airports and flights: BWI

## Other catalogs

- [All airlines](https://aviaseek.com/en/airlines)
- [Airports](https://aviaseek.com/en/airports)
- [Cities](https://aviaseek.com/en/cities)

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Source: https://aviaseek.com/en/airlines/wn
Sitemap for agents: https://aviaseek.com/en/llms.txt (full description - https://aviaseek.com/en/llms-full.txt)
MCP server: https://aviaseek.com/en/mcp