St Louis to Portland (STL–PDX) — Airlines, Schedules & Connections

STL Airport Page →
1,704 mi airlines charter/private 9/wk
On-time Some delays Frequent delays
Flight Schedule 6 flights Verified 47m ago
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
✓
→
WN801
Seat map
WN Southwest
7M8 Seat map
8:30 AM
CDT T2
10:40 AM
PDT
4h 10m
74%
M T W T F S S
Prices
✓
→
AS1318
Seat map
AS Alaska
738 Seat map
6:08 PM
CDT T1
8:20 PM
PDT
4h 12m
—
M T W T F S S
Prices
✓
→
WN3543
WN Southwest
B38M
9:55 PM
CDT T2 Red-eye
12:10 AM+1
PDT
4h 15m
74%
M T W T F S S
Prices
✓
←
WN400
Seat map
WN Southwest
7M8 Seat map
9:45 AM
PDT
3:30 PM
CDT
3h 45m
—
M T W T F S S
Prices
✓
←
AS1318
Seat map
AS Alaska
738 Seat map
11:16 AM
PDT
5:10 PM
CDT
3h 54m
37%
M T W T F S S
Prices
✓
←
WN3199
WN Southwest
7S7
12:25 PM
PDT
6:10 PM
CDT
3h 45m
—
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
DEN Denver 5h 50m ACF9UA → ASCMDE Denver (DEN) to Portland flights
SLC Salt Lake City 5h 54m DLKE → ASDEDL Salt Lake City (SLC) to Portland flights
MSP Minneapolis 6h 8m AFAMDL → AFAMAS Minneapolis (MSP) to Portland flights
SEA Seattle 6h 15m ASJLQR → AFAMAS Seattle (SEA) to Portland flights
MDW Chicago 6h 15m WN → WN Chicago (MDW) to Portland flights
DAL Dallas 6h 30m EJAWN → WN Dallas (DAL) to Portland flights
LAS Las Vegas 6h 35m EJAEJMF9 → ASDEF9 Las Vegas (LAS) to Portland flights
SMF Sacramento 6h 40m WN → ASBADE Sacramento (SMF) to Portland flights
DFW Dallas-Fort Worth 6h 45m AAASAY → AAASAY Dallas-Fort Worth (DFW) to Portland flights
SFO San Francisco 6h 50m OZUAWN → ACASAV San Francisco (SFO) to Portland flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
St Louis to Portland
2 carriers, 9 flights/week nonstop.
2 Airlines 1,704 mi 4h 12m nonstop -2h behind

STL–PDX is served by 2 airlines with nonstop service. Alaska Airlines and Southwest Airlines lead the route. The flight covers 1,704 miles in approximately 4h 12m. Beyond nonstop, 1-stop connecting options are also available.

Also explore Choose a flight to see its seat map STL Routes PDX Routes STL Live Flights PDX Live Flights STL Delays PDX Delays
All flights from Portland (PDX) Portland to St Louis flights
Carriers on this route

Airline Landscape

All carriers operating nonstop STL–PDX service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines 7 738 4h12 75% Oneworld –
WN Southwest Airlines 2 7M8, B38M 4h10-4h15 75% – –
Aircraft on this route
738 Boeing 737-800 – AS
7M8 Boeing 737 MAX 8 – WN
B38M Boeing 737 MAX 8 – WN
Alliance coverage
Oneworld: AS (7 flights/wk, 78%)
Unaffiliated: WN (2 flights/wk, 22%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, STL to PDX direction.
Mon
1
flight
Tue
1
flight
Wed
1
flight
Thu
1
flight
Fri
1
flight
Sat
2
flights
Sun
2
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
3
Nonstop flights
9
Outbound / wk
9
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for STL to PDX.
1-STOP
One-Stop Connections
31
Hubs
~5h
Fastest
~23h
Longest
DEN ~5h 50m SLC ~5h 54m MSP ~6h 8m SEA ~6h 15m MDW ~6h 15m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
1,989
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
STL → PDX
75%
Generally reliable. Most flights run on time.
Departing
75%
Arriving
94%
Return
PDX → STL
85%
Generally reliable. Most flights run on time.
Departing
85%
Arriving
81%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. STL delays → PDX delays →
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
-2h
Portland is 2 hours behind St Louis.
STL: CDT · PDX: PDT

When it's 6:00 PM in St Louis, it's 4:00 PM in Portland.
Distance & Flight Time
1,704 mi / 2,742 km
Nonstop flight time is approximately 4h 12m gate to gate.
Facts

STL–PDX Quick Facts

Key statistics for the St Louis to Portland route.
Route details
Distance1,704 mi / 2,742 km
Flight time4h 12m
Time difference-2 hours
Airlines (nonstop)2
Weekly flights9 out / 9 return
1-stop connectionsAvailable
Origin: STL
Full nameSt. Louis Lambert International Airport
IATA / ICAOSTL / KSTL
TimezoneAmerica/Chicago
Passengers/yr15.6M
Elevation618 ft / 188 m
Destination: PDX
Full namePortland International Airport
IATA / ICAOPDX / KPDX
TimezoneAmerica/Los_Angeles
Passengers/yr17.3M
Elevation31 ft / 9 m
FAQ

Frequently Asked Questions

Common questions about STL to PDX flights.
Nonstop flights from St. Louis Lambert International Airport to Portland International Airport take about 4h 12m gate to gate. The route covers 1,704 miles.
2 airlines operate flights from STL to PDX: Alaska Airlines and Southwest Airlines.
This route has daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Denver, Salt Lake City and Minneapolis–Saint Paul.
On a single ticket, yes. Your bags are checked through to PDX and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
Portland is 2 hours behind St Louis.
Yes, return flights from PDX to STL are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from STL to PDX

St. Louis Lambert International Airport (STL) and Portland International Airport (PDX) are connected by nonstop service from Alaska Airlines and Southwest Airlines. With 9 weekly departures, this is a regularly served route.

STL to PDX Flight Duration and Schedule

Nonstop flight time from STL to PDX is about 4 hours 12 minutes gate to gate. The route covers a distance of 1,704 miles (2,742 km). There are approximately 9 weekly flights outbound and 9 return, totaling 18 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Denver, Salt Lake City and Minneapolis–Saint Paul. Two-stop connections are also available via intermediate hubs.