Flights from St. Louis to Biddeford

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.

Sat, Jun 14 - Sat, Jun 21

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$424 Roundtrip, found 21 hours ago

$424

Roundtrip

found 21 hours ago

Select Delta flight, departing Sat, Jun 14 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Jun 21, priced at $424 found 21 hours ago

Mon, Jun 16 - Sat, Jun 21

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$427 Roundtrip, found 21 hours ago

$427

Roundtrip

found 21 hours ago

Select Delta flight, departing Mon, Jun 16 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Jun 21, priced at $427 found 21 hours ago

Sat, Jun 14 - Mon, Jun 16

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$441 Roundtrip, found 21 hours ago

$441

Roundtrip

found 21 hours ago

Select Delta flight, departing Sat, Jun 14 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Mon, Jun 16, priced at $441 found 21 hours ago

Sat, Jun 14 - Sun, Jun 15

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$444 Roundtrip, found 21 hours ago

$444

Roundtrip

found 21 hours ago

Select Delta flight, departing Sat, Jun 14 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sun, Jun 15, priced at $444 found 21 hours ago

Fri, Jun 13 - Sat, Jun 21

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$446 Roundtrip, found 21 hours ago

$446

Roundtrip

found 21 hours ago

Select Frontier Airlines flight, departing Fri, Jun 13 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Jun 21, priced at $446 found 21 hours ago

Tue, Jun 10 - Sat, Jun 21

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$469 Roundtrip, found 21 hours ago

$469

Roundtrip

found 21 hours ago

Select Delta flight, departing Tue, Jun 10 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Jun 21, priced at $469 found 21 hours ago

Sat, Jun 14 - Sat, Jun 14

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$483 Roundtrip, found 21 hours ago

$483

Roundtrip

found 21 hours ago

Select Delta flight, departing Sat, Jun 14 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Jun 14, priced at $483 found 21 hours ago

Tue, Jun 10 - Mon, Jun 16

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$486 Roundtrip, found 21 hours ago

$486

Roundtrip

found 21 hours ago

Select Delta flight, departing Tue, Jun 10 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Mon, Jun 16, priced at $486 found 21 hours ago

Tue, Jun 10 - Sat, Jun 14

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$489 Roundtrip, found 21 hours ago

$489

Roundtrip

found 21 hours ago

Select Delta flight, departing Tue, Jun 10 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Jun 14, priced at $489 found 21 hours ago

Thu, Jun 12 - Sat, Jun 21

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$507 Roundtrip, found 21 hours ago

$507

Roundtrip

found 21 hours ago

Select Delta flight, departing Thu, Jun 12 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Jun 21, priced at $507 found 21 hours ago

Sat, Jun 14 - Mon, Jun 23

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$512 Roundtrip, found 21 hours ago

$512

Roundtrip

found 21 hours ago

Select Delta flight, departing Sat, Jun 14 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Mon, Jun 23, priced at $512 found 21 hours ago

Mon, Jun 16 - Mon, Jun 23

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$515 Roundtrip, found 21 hours ago

$515

Roundtrip

found 21 hours ago

Select Delta flight, departing Mon, Jun 16 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Mon, Jun 23, priced at $515 found 21 hours ago

Thu, Jun 12 - Mon, Jun 16

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$524 Roundtrip, found 21 hours ago

$524

Roundtrip

found 21 hours ago

Select Delta flight, departing Thu, Jun 12 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Mon, Jun 16, priced at $524 found 21 hours ago

Sun, Jun 15 - Sun, Jun 15

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$527 Roundtrip, found 21 hours ago

$527

Roundtrip

found 21 hours ago

Select American Airlines flight, departing Sun, Jun 15 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sun, Jun 15, priced at $527 found 21 hours ago

Thu, Jun 12 - Sat, Jun 14

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$527 Roundtrip, found 21 hours ago

$527

Roundtrip

found 21 hours ago

Select Delta flight, departing Thu, Jun 12 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Jun 14, priced at $527 found 21 hours ago

Tue, Jun 10 - Fri, Jun 13

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$531 Roundtrip, found 21 hours ago

$531

Roundtrip

found 21 hours ago

Select Delta flight, departing Tue, Jun 10 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Fri, Jun 13, priced at $531 found 21 hours ago

Fri, Jun 13 - Mon, Jun 16

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$550 Roundtrip, found 21 hours ago

$550

Roundtrip

found 21 hours ago

Select Delta flight, departing Fri, Jun 13 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Mon, Jun 16, priced at $550 found 21 hours ago

Fri, Jun 13 - Sat, Jun 14

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$553 Roundtrip, found 21 hours ago

$553

Roundtrip

found 21 hours ago

Select Delta flight, departing Fri, Jun 13 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Jun 14, priced at $553 found 21 hours ago

Tue, Jun 10 - Mon, Jun 23

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$557 Roundtrip, found 21 hours ago

$557

Roundtrip

found 21 hours ago

Select Delta flight, departing Tue, Jun 10 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Mon, Jun 23, priced at $557 found 21 hours ago

Wed, Jun 11 - Sat, Jun 21

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$574 Roundtrip, found 21 hours ago

$574

Roundtrip

found 21 hours ago

Select United flight, departing Wed, Jun 11 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Jun 21, priced at $574 found 21 hours ago