← Back to Deals
Book This Deal
STL
Saint Louis
BUE
Buenos Aires
Saint Louis → Buenos Aires
Frontier Airlines · Round Trip · Nonstop
$978
per person · round trip
Flight Details
Cabin
Economy
Departs
May 2, 2026
Returns
May 7, 2026
Planning your trip to Buenos Aires?
Complete your trip with these deals.
Hotels in Buenos Aires
Find the best hotel deals for your stay.
Coming soon →Rental Cars in Buenos Aires
Get around with affordable rental car deals.
Coming soon →Adventures in Buenos Aires
Explore tours, activities, and experiences.
Coming soon →