Flights from Baltimore to Alton

Cheapest flights from Baltimore

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.

Fri, Oct 10 - Sat, Oct 11

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$218 Roundtrip, found 1 day ago

$218

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Oct 10 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Sat, Oct 11, priced at $218 found 1 day ago

Wed, Oct 8 - Tue, Oct 14

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$225 Roundtrip, found 1 day ago

$225

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Wed, Oct 8 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Tue, Oct 14, priced at $225 found 1 day ago

Sat, Oct 4 - Tue, Oct 7

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$227 Roundtrip, found 1 day ago

$227

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Oct 4 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Tue, Oct 7, priced at $227 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$228 Roundtrip, found 1 day ago

$228

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $228 found 1 day ago

Thu, Oct 9 - Fri, Oct 10

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$228 Roundtrip, found 1 day ago

$228

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Oct 9 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Fri, Oct 10, priced at $228 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$245 Roundtrip, found 1 day ago

$245

Roundtrip

found 1 day ago

Select United flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $245 found 1 day ago

Sun, Oct 5 - Tue, Oct 7

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$249 Roundtrip, found 1 day ago

$249

Roundtrip

found 1 day ago

Select Delta flight, departing Sun, Oct 5 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Tue, Oct 7, priced at $249 found 1 day ago

Wed, Oct 8 - Thu, Oct 16

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$250 Roundtrip, found 1 day ago

$250

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Wed, Oct 8 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 16, priced at $250 found 1 day ago

Fri, Oct 10 - Fri, Oct 10

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$258 Roundtrip, found 1 day ago

$258

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Oct 10 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Fri, Oct 10, priced at $258 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$263 Roundtrip, found 1 day ago

$263

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $263 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$265 Roundtrip, found 1 day ago

$265

Roundtrip

found 1 day ago

Select United flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $265 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$265 Roundtrip, found 1 day ago

$265

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $265 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$268 Roundtrip, found 1 day ago

$268

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $268 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$278 Roundtrip, found 1 day ago

$278

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $278 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$280 Roundtrip, found 1 day ago

$280

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $280 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$281 Roundtrip, found 1 day ago

$281

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $281 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$298 Roundtrip, found 1 day ago

$298

Roundtrip

found 1 day ago

Select United flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $298 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$300 Roundtrip, found 1 day ago

$300

Roundtrip

found 1 day ago

Select United flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $300 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$300 Roundtrip, found 1 day ago

$300

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $300 found 1 day ago

Tue, Oct 7 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STL

Lambert-St. Louis Intl.

$432 Roundtrip, found 1 day ago

$432

Roundtrip

found 1 day ago

Select United flight, departing Tue, Oct 7 from Baltimore Washington Intl. Thurgood Marshall to Lambert-St. Louis Intl., returning Thu, Oct 9, priced at $432 found 1 day ago