Flights from St. Louis to Saco

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.

Tue, Sep 23 - Wed, Sep 24

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$251 Roundtrip, found 14 hours ago

$251

Roundtrip

found 14 hours ago

Select Delta flight, departing Tue, Sep 23 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Wed, Sep 24, priced at $251 found 14 hours ago

Tue, Sep 23 - Fri, Sep 26

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$267 Roundtrip, found 14 hours ago

$267

Roundtrip

found 14 hours ago

Select Delta flight, departing Tue, Sep 23 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Fri, Sep 26, priced at $267 found 14 hours ago

Sun, Sep 14 - Wed, Sep 24

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$278 Roundtrip, found 15 hours ago

$278

Roundtrip

found 15 hours ago

Select Delta flight, departing Sun, Sep 14 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Wed, Sep 24, priced at $278 found 15 hours ago

Sun, Sep 21 - Wed, Sep 24

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$285 Roundtrip, found 14 hours ago

$285

Roundtrip

found 14 hours ago

Select Delta flight, departing Sun, Sep 21 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Wed, Sep 24, priced at $285 found 14 hours ago

Sun, Sep 14 - Fri, Sep 26

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$294 Roundtrip, found 15 hours ago

$294

Roundtrip

found 15 hours ago

Select Delta flight, departing Sun, Sep 14 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Fri, Sep 26, priced at $294 found 15 hours ago

Tue, Oct 7 - Tue, Oct 14

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$297 Roundtrip, found 6 days ago

$297

Roundtrip

found 6 days ago

Select United flight, departing Tue, Oct 7 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Tue, Oct 14, priced at $297 found 6 days ago

Tue, Oct 7 - Tue, Oct 14

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$297 Roundtrip, found 6 days ago

$297

Roundtrip

found 6 days ago

Select American Airlines flight, departing Tue, Oct 7 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Tue, Oct 14, priced at $297 found 6 days ago

Tue, Oct 7 - Tue, Oct 14

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$297 Roundtrip, found 6 days ago

$297

Roundtrip

found 6 days ago

Select American Airlines flight, departing Tue, Oct 7 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Tue, Oct 14, priced at $297 found 6 days ago

Sun, Sep 21 - Fri, Sep 26

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$301 Roundtrip, found 14 hours ago

$301

Roundtrip

found 14 hours ago

Select Delta flight, departing Sun, Sep 21 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Fri, Sep 26, priced at $301 found 14 hours ago

Tue, Oct 7 - Tue, Oct 14

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$310 Roundtrip, found 6 days ago

$310

Roundtrip

found 6 days ago

Select American Airlines flight, departing Tue, Oct 7 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Tue, Oct 14, priced at $310 found 6 days ago

Sun, Oct 5 - Wed, Oct 8

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$312 Roundtrip, found 1 day ago

$312

Roundtrip

found 1 day ago

Select Delta flight, departing Sun, Oct 5 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Wed, Oct 8, priced at $312 found 1 day ago

Tue, Oct 7 - Tue, Oct 14

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$312 Roundtrip, found 6 days ago

$312

Roundtrip

found 6 days ago

Select American Airlines flight, departing Tue, Oct 7 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Tue, Oct 14, priced at $312 found 6 days ago

Fri, Sep 19 - Wed, Sep 24

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$319 Roundtrip, found 14 hours ago

$319

Roundtrip

found 14 hours ago

Select Delta flight, departing Fri, Sep 19 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Wed, Sep 24, priced at $319 found 14 hours ago

Sun, Sep 7 - Fri, Sep 19

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$320 Roundtrip, found 6 days ago

$320

Roundtrip

found 6 days ago

Select Delta flight, departing Sun, Sep 7 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Fri, Sep 19, priced at $320 found 6 days ago

Tue, Sep 23 - Mon, Sep 29

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$322 Roundtrip, found 14 hours ago

$322

Roundtrip

found 14 hours ago

Select Delta flight, departing Tue, Sep 23 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Mon, Sep 29, priced at $322 found 14 hours ago

Tue, Oct 7 - Tue, Oct 14

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$325 Roundtrip, found 6 days ago

$325

Roundtrip

found 6 days ago

Select American Airlines flight, departing Tue, Oct 7 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Tue, Oct 14, priced at $325 found 6 days ago

Tue, Oct 7 - Sat, Oct 11

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$327 Roundtrip, found 1 day ago

$327

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Oct 7 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Oct 11, priced at $327 found 1 day ago

Sat, Oct 4 - Thu, Oct 16

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$330 Roundtrip, found 6 days ago

$330

Roundtrip

found 6 days ago

Select Delta flight, departing Sat, Oct 4 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Thu, Oct 16, priced at $330 found 6 days ago

Fri, Sep 19 - Fri, Sep 26

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$335 Roundtrip, found 14 hours ago

$335

Roundtrip

found 14 hours ago

Select Delta flight, departing Fri, Sep 19 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Fri, Sep 26, priced at $335 found 14 hours ago

Fri, Aug 8 - Sat, Aug 16

STL

Lambert-St. Louis Intl.

PWM

Portland Intl. Jetport

$427 Roundtrip, found 6 days ago

$427

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Lambert-St. Louis Intl. to Portland Intl. Jetport, returning Sat, Aug 16, priced at $427 found 6 days ago