Airlines with flights from Saint Louis to Portland

There are five airlines with scheduled flights between STL and PDX. Both Alaska Airlines and Southwest operates non-stop flights from Saint Louis Airport to Portland International and the flight time is 4 hours and 10 minutes.

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Direct

$Alaska Airlines from {( $airportFrom->city_name }} to Portland$

Non-stop

4h 10min

Direct

$Southwest Airlines from {( $airportFrom->city_name }} to Portland$

Non-stop

4h 8min

Via Salt Lake City

5h 34min

Via Denver

5h 35min

Via Minneapolis

5h 37min

Via Denver

5h 51min

Via Chicago

6h 0min

Via Seattle

6h 6min

Via Sacramento

6h 10min

Via Dallas

6h 15min

Via Chicago

6h 17min

Via Las Vegas

6h 20min

Via Dallas

6h 25min

Via Chicago

6h 38min

Starts 04/07

Via Kansas City

5h 20min

Schedules

Non-stop with Alaska Airlines

Total flight time: 4 hours and 10 minutes
One World Alliance
Portland is a Alaska Airlines hub.

7 flights per week
Boeing 737MAX 9 Passenger

Boeing 737-800 (winglets) Passenger/BBJ2

Boeing 737-900 (winglets) Passenger/BBJ3
Business and first class available

STL

Direct

PDX

Flight

Mon

Jun 15

Tue

Jun 16

Wed

Jun 17

Thu

Jun 18

Fri

Jun 19

Sat

Jun 20

Sun

Jun 21

AS1538

17:37

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The timetable & schedule information was updated at 2026-04-21

Non-stop with Southwest Airlines

Total flight time: 4 hours and 8 minutes
Low-cost airline

2 flights per week
Boeing 737-800 (winglets) Passenger/BBJ2

Boeing 737MAX 8 Passenger

STL

Direct

PDX

Flight

Mon

Jun 15

Tue

Jun 16

Wed

Jun 17

Thu

Jun 18

Fri

Jun 19

Sat

Jun 20

Sun

Jun 21

WN2109

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16:45

WN2499

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17:35

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The timetable & schedule information was updated at 2026-04-21

Via Salt Lake City with Delta Air Lines

Total flight time: 5h 34m - 7h 45m.
Sky Team Alliance

106 flights per week

STL

Via SLC

PDX

Flight

Mon

Jun 15

Tue

Jun 16

Wed

Jun 17

Thu

Jun 18

Fri

Jun 19

Sat

Jun 20

Sun

Jun 21

DL2363
DL1209

08:00

DL2455
DL1238

14:28

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14:28

DL1492
DL1373

19:52

17:00

19:52

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CHECK PRICES FOR STL - PDX

The timetable & schedule information was updated at 2026-04-21

Via Denver with Southwest Airlines

Total flight time: 5h 35m - 9h 45m.
Low-cost airline

191 flights per week
Boeing 737-800 (winglets) Passenger/BBJ2

Boeing 737MAX 8 Passenger

STL

Via DEN

PDX

Flight

Mon

Jun 15

Tue

Jun 16

Wed

Jun 17

Thu

Jun 18

Fri

Jun 19

Sat

Jun 20

Sun

Jun 21

WN3909
WN300

05:35

06:00

05:35

05:40

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WN3909
WN2736

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05:40

WN3910
WN1577

08:10

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08:10

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WN1300
WN4271

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