$284 Cheap United flights Wilmington (ILM) to St. Louis (STL)

View $284 flight on Sun, Jan 18, 2026Opens in a new window
  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$284 Cheap United flights Wilmington (ILM) to St. Louis (STL)

Prices were available within the past 7 days and start at $284 for one-way flights and $319 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Dec 25 - Fri, Jan 2
ILM
Wilmington
STL
St. Louis
$319 Roundtrip, found 2 days ago
$319
Roundtrip
found 2 days ago
Select United flight, departing Thu, Dec 25 from Wilmington to St. Louis, returning Fri, Jan 2, priced at $319 found 2 days ago

Find the cheapest month to fly from Wilmington (ILM) to St. Louis (STL)

April is typically the cheapest month to fly

From $198 - $539 per traveler.

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $269
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $269

Travel information

Origin airport
Wilmington Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
American Airlines
Distance
756 mi

Explore a world of travel with Expedia

*Available to One Key members.