Airlines with flights from Portland to Saint Louis
There are 6 airlines with scheduled flights between PDX and STL. Both Alaska Airlines and Southwest operates non-stop flights from Portland International to Saint Louis Airport and the flight time is 3 hours and 54 minutes.
There are 6 airlines with scheduled flights between PDX and STL. Both Alaska Airlines and Southwest operates non-stop flights from Portland International to Saint Louis Airport and the flight time is 3 hours and 54 minutes. Choose airline
Direct
Non-stop
3h 54min
Direct
Non-stop
3h 43min
Via Denver
5h 10min
Via Salt Lake City
5h 20min
Via Denver
5h 28min
NEW
Via Denver
5h 33min
Via Chicago
5h 50min
Via Seattle
5h 54min
Via Chicago
5h 55min
Via Chicago
5h 56min
Via Las Vegas
6h 0min
Via Minneapolis
6h 0min
Via Dallas
6h 11min
Via Dallas
6h 20min
Via Las Vegas
6h 25min
NEW
Via Kansas City
5h 35min
Via Sacramento
5h 50min
Schedules
Non-stop with Alaska Airlines
-
Total flight time: 3 hours and 54 minutes
-
One World Alliance
-
Portland is a Alaska Airlines hub.
-
7 flights per week
-
Boeing 737MAX 9 PassengerBoeing 737-800 (winglets) Passenger/BBJ2
-
Business and first class available
PDX
Direct
STL
W28, Jul 06 - Jul 12
Flight
Mon
Jul 6
Tue
Jul 7
Wed
Jul 8
Thu
Jul 9
Fri
Jul 10
Sat
Jul 11
Sun
Jul 12
AS1635
10:49
10:49
10:49
10:49
10:49
10:49
10:49
The timetable & schedule information was updated at 2026-04-21
Non-stop with Southwest Airlines
-
Total flight time: 3 hours and 43 minutes
-
Low-cost airline
-
2 flights per week
-
Boeing 737-700 Passenger (Scimitar Winglets)Boeing 737-800 (winglets) Passenger/BBJ2
PDX
Direct
STL
W28, Jul 06 - Jul 12
Flight
Mon
Jul 6
Tue
Jul 7
Wed
Jul 8
Thu
Jul 9
Fri
Jul 10
Sat
Jul 11
Sun
Jul 12
WN2031
----
----
----
----
----
08:20
----
WN2124
----
----
----
----
----
----
10:00
The timetable & schedule information was updated at 2026-04-21
Via Denver with Southwest Airlines
-
Total flight time: 5h 10m - 9h 10m.
-
Low-cost airline
-
156 flights per week
-
Boeing 737-700 Passenger (Scimitar Winglets)Boeing 737-800 (winglets) Passenger/BBJ2
PDX
Via DEN
STL
W28, Jul 06 - Jul 12
Flight
Mon
Jul 6
Tue
Jul 7
Wed
Jul 8
Thu
Jul 9
Fri
Jul 10
Sat
Jul 11
Sun
Jul 12
WN3195
WN1753
WN1753
05:50
05:35
05:35
05:50
05:50
05:15
----
WN3195
WN681
WN681
----
----
----
----
----
----
05:50
WN4099
WN3152
WN3152
07:10
----
----
07:10
07:10
----
----
WN471
WN3152
WN3152
----
----
----
----
----
07:55
----
WN3693
WN556
WN556
----
----
----
----
----
----
08:30
WN3693
WN3152
WN3152
----
08:35
08:35
----
----
----
----
WN1658
WN4213
WN4213
----
10:45
10:45
----
----
----
----
WN1658
WN64
WN64
11:00
----
----
11:00
11:00
----
----
WN2519
WN1133
WN1133
----
----
----
----
----
14:10
----
WN2519
WN1756
WN1756
14:45
14:35
14:35
14:45
14:45
----
----
WN2519
WN1758
WN1758
----
----
----
----
----
----
14:45
The timetable & schedule information was updated at 2026-04-21
Via Salt Lake City with Delta Air Lines
-
Total flight time: 5h 20m - 7h 20m.
-
Sky Team Alliance
-
78 flights per week
PDX
Via SLC
STL
W28, Jul 06 - Jul 12
Flight
Mon
Jul 6
Tue
Jul 7
Wed
Jul 8
Thu
Jul 9
Fri
Jul 10
Sat
Jul 11
Sun
Jul 12
DL1270
DL2455
DL2455
06:00
06:00
06:00
06:00
06:00
06:00
06:00
DL1203
DL1492
DL1492
09:42
09:42
09:42
09:42
09:42
----
09:42
DL1209
DL2666
DL2666
----
----
----
----
----
13:23
----
DL1244
DL2666
DL2666
----
17:14
17:14
17:14
17:14
----
17:14
The timetable & schedule information was updated at 2026-04-21
Via Denver with United Airlines
-
Total flight time: 5h 28m - 13h 22m.
-
136 flights per week
PDX
Via DEN
STL
W28, Jul 06 - Jul 12
Flight
Mon
Jul 6
Tue
Jul 7
Wed
Jul 8
Thu
Jul 9
Fri
Jul 10
Sat
Jul 11
Sun
Jul 12
UA459
UA652
UA652
05:00
05:00
05:00
05:00
05:00
05:00
05:00
UA1596
UA214
UA214
08:35
08:35
08:35
08:35
08:35
08:35
08:35
UA2375
UA1639
UA1639
08:50
08:50
08:50
08:50
08:50
08:50
08:50
UA2793
UA1422
UA1422
11:05
11:05
11:05
11:05
11:05
11:05
11:05
UA1411
UA1422
UA1422
12:50
12:50
12:50
12:50
12:50
12:50
12:50
UA1787
UA214
UA214
16:15
16:15
16:15
16:15
16:15
16:15
16:15
The timetable & schedule information was updated at 2026-04-21
Via Denver with Frontier Airlines
-
Total flight time: 5h 33m - 6h 06m.
-
Low-cost airline
PDX
Via DEN
STL
W28, Jul 06 - Jul 12
Flight
Mon
Jul 6
Tue
Jul 7
Wed
Jul 8
Thu
Jul 9
Fri
Jul 10
Sat
Jul 11
Sun
Jul 12
Sorry. We could not find any flights for this week.
The timetable & schedule information was updated at 2026-04-21
Via Chicago with American Airlines