Flights from Collinsville to Washington

Cheapest flights from Collinsville

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.

Mon, Aug 4 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

DCA

Ronald Reagan Washington National

$157 Roundtrip, found 1 day ago

$157

Roundtrip

found 1 day ago

Select American Airlines flight, departing Mon, Aug 4 from Lambert-St. Louis Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $157 found 1 day ago

Mon, Aug 4 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

DCA

Ronald Reagan Washington National

$167 Roundtrip, found 1 day ago

$167

Roundtrip

found 1 day ago

Select American Airlines flight, departing Mon, Aug 4 from Lambert-St. Louis Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $167 found 1 day ago

Mon, Aug 4 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

DCA

Ronald Reagan Washington National

$177 Roundtrip, found 1 day ago

$177

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Aug 4 from Lambert-St. Louis Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $177 found 1 day ago

Tue, Aug 5 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$183 Roundtrip, found 1 day ago

$183

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Aug 14, priced at $183 found 1 day ago

Mon, Aug 4 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

DCA

Ronald Reagan Washington National

$197 Roundtrip, found 1 day ago

$197

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Aug 4 from Lambert-St. Louis Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $197 found 1 day ago

Tue, Aug 5 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$202 Roundtrip, found 1 day ago

$202

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Aug 14, priced at $202 found 1 day ago

Mon, Aug 4 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

DCA

Ronald Reagan Washington National

$202 Roundtrip, found 1 day ago

$202

Roundtrip

found 1 day ago

Select American Airlines flight, departing Mon, Aug 4 from Lambert-St. Louis Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $202 found 1 day ago

Mon, Aug 4 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

DCA

Ronald Reagan Washington National

$204 Roundtrip, found 1 day ago

$204

Roundtrip

found 1 day ago

Select American Airlines flight, departing Mon, Aug 4 from Lambert-St. Louis Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $204 found 1 day ago

Tue, Aug 5 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$208 Roundtrip, found 1 day ago

$208

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Aug 14, priced at $208 found 1 day ago

Mon, Aug 4 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

DCA

Ronald Reagan Washington National

$212 Roundtrip, found 1 day ago

$212

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Aug 4 from Lambert-St. Louis Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $212 found 1 day ago

Tue, Aug 5 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$217 Roundtrip, found 1 day ago

$217

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Aug 14, priced at $217 found 1 day ago

Tue, Aug 5 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$218 Roundtrip, found 1 day ago

$218

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Aug 14, priced at $218 found 1 day ago

Mon, Aug 4 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

DCA

Ronald Reagan Washington National

$222 Roundtrip, found 1 day ago

$222

Roundtrip

found 1 day ago

Select American Airlines flight, departing Mon, Aug 4 from Lambert-St. Louis Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $222 found 1 day ago

Mon, Aug 4 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

DCA

Ronald Reagan Washington National

$227 Roundtrip, found 1 day ago

$227

Roundtrip

found 1 day ago

Select American Airlines flight, departing Mon, Aug 4 from Lambert-St. Louis Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $227 found 1 day ago

Tue, Aug 5 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$230 Roundtrip, found 1 day ago

$230

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Aug 14, priced at $230 found 1 day ago

Tue, Aug 5 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$231 Roundtrip, found 1 day ago

$231

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Aug 14, priced at $231 found 1 day ago

Tue, Oct 14 - Thu, Oct 16

STL

Lambert-St. Louis Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$236 Roundtrip, found 8 hours ago

$236

Roundtrip

found 8 hours ago

Select Spirit Airlines flight, departing Tue, Oct 14 from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Oct 16, priced at $236 found 8 hours ago

Mon, Aug 4 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

DCA

Ronald Reagan Washington National

$238 Roundtrip, found 1 day ago

$238

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Aug 4 from Lambert-St. Louis Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $238 found 1 day ago

Sat, Aug 23 - Sat, Aug 30

STL

Lambert-St. Louis Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$241 Roundtrip, found 1 day ago

$241

Roundtrip

found 1 day ago

Select United flight, departing Sat, Aug 23 from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Sat, Aug 30, priced at $241 found 1 day ago

Tue, Aug 5 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$241 Roundtrip, found 1 day ago

$241

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Aug 14, priced at $241 found 1 day ago