Cheap Flights To Central Illinois 2026

Central Illinois Flights as Low as $163

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Nov 11 - Wed, Nov 18
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$163
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Wed, Nov 11 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Wed, Nov 18, priced at $163 found 17 hours ago
Frontier Airlines
Wed, Nov 11 - Fri, Nov 13
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$169
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Wed, Nov 11 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Fri, Nov 13, priced at $169 found 17 hours ago
Frontier Airlines
Mon, Nov 9 - Wed, Nov 18
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$176
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Mon, Nov 9 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Wed, Nov 18, priced at $176 found 17 hours ago
Frontier Airlines
Mon, Nov 9 - Fri, Nov 13
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$182
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Mon, Nov 9 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Fri, Nov 13, priced at $182 found 17 hours ago
Frontier Airlines
Wed, Nov 11 - Thu, Nov 19
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$210
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Wed, Nov 11 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Nov 19, priced at $210 found 17 hours ago
Frontier Airlines
Fri, Nov 13 - Thu, Nov 19
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$216
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Fri, Nov 13 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Nov 19, priced at $216 found 17 hours ago
Frontier Airlines
Mon, Nov 9 - Thu, Nov 19
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$223
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Mon, Nov 9 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Nov 19, priced at $223 found 17 hours ago
Frontier Airlines
Mon, Oct 5 - Wed, Oct 7
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$244
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, Oct 5 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Wed, Oct 7, priced at $244 found 3 days ago
Frontier Airlines
Sun, Nov 15 - Thu, Nov 19
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$257
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Sun, Nov 15 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Nov 19, priced at $257 found 17 hours ago
Frontier Airlines
Mon, Oct 5 - Wed, Oct 7
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$269
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, Oct 5 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Wed, Oct 7, priced at $269 found 3 days ago
United
Mon, Oct 5 - Wed, Oct 7
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$294
Roundtrip
found 3 days ago
Select United flight, departing Mon, Oct 5 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Wed, Oct 7, priced at $294 found 3 days ago
American Airlines
Mon, Oct 5 - Wed, Oct 7
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$294
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Oct 5 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Wed, Oct 7, priced at $294 found 3 days ago
Southwest Airlines
Delta
Sat, Nov 14 - Tue, Nov 17
BWI
Baltimore Washington Intl. Thurgood Marshall
STL
Lambert-St. Louis Intl.
$301
Roundtrip
found 17 hours ago
Select Delta flight, departing Sat, Nov 14 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Tue, Nov 17, priced at $301 found 17 hours ago
Frontier Airlines
Southwest Airlines

Cheap Central Illinois Flights

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