$138 New York, NY (LGA) to St. Louis, MO (STL)
- Airline
- Southwest
- Availability
- Book by 4/19. 21-day advance purchase required. Domestic travel valid 4/24/18 – 6/13/18 and 8/21/18 – 10/31/18. International travel valid 4/24/18 – 5/17/18, and 8/21/18 – 10/31/18.
- Book By
- Apr 19, 2018
- Type
- Non-stop
- Travel Period
- Apr 24, 2018 through Oct 31, 2018
- Last Updated
- Apr 11, 2018
- How to Book
- Click here to book online at Southwest.
- Bag Pricing
- See Southwest Baggage Fees
- Notes
- Domestic travel blacked out May 24-25, May 28, August 31 and September 3, 2018. Domestic travel is valid only on Tuesdays, Wednesdays and Saturdays. 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.