Flights from St. Louis to Dover

Cheapest flights from St. Louis

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, Jun 23 - Sat, Jun 28

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$199 Roundtrip, found 5 days ago

$199

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Mon, Jun 23 from Lambert-St. Louis Intl. to Logan Intl., returning Sat, Jun 28, priced at $199 found 5 days ago

Mon, Jun 23 - Thu, Jun 26

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$209 Roundtrip, found 5 days ago

$209

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Mon, Jun 23 from Lambert-St. Louis Intl. to Logan Intl., returning Thu, Jun 26, priced at $209 found 5 days ago

Sun, Jun 29 - Thu, Jul 3

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$219 Roundtrip, found 5 days ago

$219

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Sun, Jun 29 from Lambert-St. Louis Intl. to Logan Intl., returning Thu, Jul 3, priced at $219 found 5 days ago

Sun, Jun 22 - Sat, Jun 28

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$235 Roundtrip, found 5 days ago

$235

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Sun, Jun 22 from Lambert-St. Louis Intl. to Logan Intl., returning Sat, Jun 28, priced at $235 found 5 days ago

Mon, Jun 23 - Sun, Jun 29

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$236 Roundtrip, found 5 days ago

$236

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Mon, Jun 23 from Lambert-St. Louis Intl. to Logan Intl., returning Sun, Jun 29, priced at $236 found 5 days ago

Sat, Aug 9 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$242 Roundtrip, found 16 hours ago

$242

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Sat, Aug 9 from Lambert-St. Louis Intl. to Logan Intl., returning Thu, Aug 14, priced at $242 found 16 hours ago

Sun, Jun 22 - Thu, Jun 26

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$245 Roundtrip, found 5 days ago

$245

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Sun, Jun 22 from Lambert-St. Louis Intl. to Logan Intl., returning Thu, Jun 26, priced at $245 found 5 days ago

Thu, Aug 7 - Sat, Aug 9

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$250 Roundtrip, found 16 hours ago

$250

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Aug 7 from Lambert-St. Louis Intl. to Logan Intl., returning Sat, Aug 9, priced at $250 found 16 hours ago

Sat, Aug 9 - Wed, Aug 13

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$259 Roundtrip, found 16 hours ago

$259

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Sat, Aug 9 from Lambert-St. Louis Intl. to Logan Intl., returning Wed, Aug 13, priced at $259 found 16 hours ago

Thu, Aug 7 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$262 Roundtrip, found 16 hours ago

$262

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Thu, Aug 7 from Lambert-St. Louis Intl. to Logan Intl., returning Thu, Aug 14, priced at $262 found 16 hours ago

Tue, Aug 5 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$270 Roundtrip, found 16 hours ago

$270

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Logan Intl., returning Thu, Aug 14, priced at $270 found 16 hours ago

Sun, Jun 22 - Sun, Jun 29

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$272 Roundtrip, found 5 days ago

$272

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Sun, Jun 22 from Lambert-St. Louis Intl. to Logan Intl., returning Sun, Jun 29, priced at $272 found 5 days ago

Sun, Jun 22 - Fri, Jun 27

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$285 Roundtrip, found 5 days ago

$285

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Jun 22 from Lambert-St. Louis Intl. to Logan Intl., returning Fri, Jun 27, priced at $285 found 5 days ago

Fri, Jun 27 - Sat, Jun 28

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$287 Roundtrip, found 5 days ago

$287

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Fri, Jun 27 from Lambert-St. Louis Intl. to Logan Intl., returning Sat, Jun 28, priced at $287 found 5 days ago

Tue, Aug 5 - Wed, Aug 13

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$287 Roundtrip, found 16 hours ago

$287

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Tue, Aug 5 from Lambert-St. Louis Intl. to Logan Intl., returning Wed, Aug 13, priced at $287 found 16 hours ago

Wed, Aug 6 - Thu, Aug 14

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$297 Roundtrip, found 16 hours ago

$297

Roundtrip

found 16 hours ago

Select Spirit Airlines flight, departing Wed, Aug 6 from Lambert-St. Louis Intl. to Logan Intl., returning Thu, Aug 14, priced at $297 found 16 hours ago

Tue, Jun 24 - Tue, Jul 1

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$309 Roundtrip, found 5 days ago

$309

Roundtrip

found 5 days ago

Select Delta flight, departing Tue, Jun 24 from Lambert-St. Louis Intl. to Logan Intl., returning Tue, Jul 1, priced at $309 found 5 days ago

Wed, Oct 8 - Sun, Oct 19

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$359 Roundtrip, found 4 days ago

$359

Roundtrip

found 4 days ago

Select American Airlines flight, departing Wed, Oct 8 from Lambert-St. Louis Intl. to Logan Intl., returning Sun, Oct 19, priced at $359 found 4 days ago

Thu, Aug 7 - Tue, Aug 12

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$363 Roundtrip, found 16 hours ago

$363

Roundtrip

found 16 hours ago

Select American Airlines flight, departing Thu, Aug 7 from Lambert-St. Louis Intl. to Logan Intl., returning Tue, Aug 12, priced at $363 found 16 hours ago

Wed, Oct 8 - Sun, Oct 19

STL

Lambert-St. Louis Intl.

BOS

Logan Intl.

$375 Roundtrip, found 4 days ago

$375

Roundtrip

found 4 days ago

Select United flight, departing Wed, Oct 8 from Lambert-St. Louis Intl. to Logan Intl., returning Sun, Oct 19, priced at $375 found 4 days ago