$133 New York, NY (LGA) to St. Louis, MO (STL)
- Airline
- Southwest
- Availability
- Book by 8/17. 21-day advance purchase required. Domestic travel valid 8/29/2017 – 2/14/2018. International travel valid 8/29/2017 – 12/13/2017 and 1/9/2018 – 3/1/2018.
- Book By
- Aug 17, 2017
- Type
- Non-stop
- Travel Period
- Aug 29, 2017 through Feb 24, 2018
- Last Updated
- Aug 10, 2017
- How to Book
- Click here to book online at Southwest.
- Bag Pricing
- See Southwest Baggage Fees
- Notes
- Domestic and San Juan, Puerto Rico travel blacked out September 1, September 4, November 21-22, November 25-27, December 26-27, December 30-31, 2017 & January 1-2,2018. Sale fares from international destinations blacked out November 28, 2017. Domestic travel is not valid on Fridays and Sundays. International travel is valid Monday - Thursday. Travel to Cancun, Cabo San Lucas/Los Cabos and Puerto Vallarta is valid only on Sundays through Wednesdays. Travel from Cancun, Cabo San Lucas/Los Cabos and Puerto Vallarta is valid only on Tuesdays through Fridays. Travel to/from Mexico City; Liberia, Costa Rica and San Jose, Costa Rica is valid daily.