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Uncover the best deals on Portland to St Louis flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest PDX - STL Flights
Useful information for finding best airline tickets from Portland International to Lambert St Louis International on your next trip.
Cheapest Round Trip Flight
$389
Southwest Airlines
• 1 stop
• 10h 10m
Jun 15 – Jun 15
The cheapest round trip flight from Portland to St Louis (PDX-STL-PDX) is currently $389
Cheapest Direct Flight
$460
Alaska Airlines
• nonstop
•
Jun 04
The cheapest nonstop flight from Portland to St Louis (PDX-STL) is currently $460
Fastest Flight
6h 40m
The fastest nonstop flight from Portland to St Louis (PDX-STL) takes 6h 40m
Top Airlines Flying from Portland to St Louis
Latest Flight Deals from Portland (PDX) to St Louis (STL)
Compare and book low fare round-trip air tickets from Portland to St Louis. Ideal for travelers with confirmed return itineraries.
Jun 15 - Jun 15, Economy
Portland → St Louis
10h 10m
6:00 AM - 2:10 PM • 1 stop
Portland → St Louis
10h 5m
6:40 PM - 10:45 PM • 1 stop
Southwest Airlines
Jun 15 - Jun 15, Economy
Portland → St Louis
10h 45m
5:50 AM - 2:35 PM • 1 stop
Portland → St Louis
10h 5m
6:40 PM - 10:45 PM • 1 stop
Southwest Airlines
Jun 15 - Jun 15, Economy
Portland → St Louis
12h 35m
6:00 AM - 3:55 PM • 1 stop
Portland → St Louis
27h 15m
9:55 PM - 12:30 PM • 1 stop
Southwest Airlines
Jun 15 - Jun 15, Economy
Portland → St Louis
9h 11m
5:45 AM - 1:36 PM • 1 stop
Portland → St Louis
9h 11m
7:55 PM - 11:46 PM • 1 stop
Delta Airlines
Jun 15 - Jun 15, Economy
Portland → St Louis
10h 9m
12:33 AM - 8:42 AM • 1 stop
Portland → St Louis
15h 51m
1:59 PM - 9:50 PM • 1 stop
Delta Airlines
Flying to St Louis soon? We've surfaced some of the most affordable last-minute flights from Portland to St Louis, ideal for urgent plans or spontaneous trips.
Jun 03 - Jun 10, Economy
Portland → St Louis
10h 11m
3:10 PM - 11:21 PM • 1 stop
Portland → St Louis
13h 39m
6:21 AM - 12:40 PM • 1 stop
Delta Airlines
Jun 03 - Jun 10, Economy
Portland → St Louis
14h 10m
1:40 PM - 12:30 AM • 1 stop
Portland → St Louis
9h 11m
7:55 PM - 11:46 PM • 1 stop
Delta Airlines
Jun 04 - Jun 11, Economy
Portland → St Louis
13h 37m
11:12 PM - 9:29 AM • 1 stop
Portland → St Louis
15h 51m
1:59 PM - 9:50 PM • 1 stop
Delta Airlines
Jun 03 - Jun 10, Economy
Portland → St Louis
10h 20m
12:50 PM - 9:10 PM • 1 stop
Portland → St Louis
10h 37m
5:10 AM - 9:47 AM • 1 stop
United Airlines
Jun 04 - Jun 11, Economy
Portland → St Louis
11h 56m
6:00 AM - 3:16 PM • 1 stop
Portland → St Louis
6h 50m
5:37 PM - 7:47 PM • nonstop
Alaska Airlines
Looking for the fastest way to St Louis? These direct flight options from PDX to STL offer both convenience and value—no layovers, just straight to your destination.
Jun 04 - Jun 11, Economy
Portland → St Louis
- • nonstop
Portland → St Louis
- • nonstop
Alaska Airlines
Jun 03 - Jun 10, Economy
Portland → St Louis
6h 40m
10:37 AM - 4:37 PM • nonstop
Portland → St Louis
6h 50m
5:37 PM - 7:47 PM • nonstop
Alaska Airlines
FAQs on Portland to St Louis Flights
What are the airports in Portland?
PDX
What’s the most popular airline flying from PDX to STL?
The most popular airline flying from Portland to St Louis are
Can I fly from PDX to STL non-stop?
Yes, you can fly PDX to STL non-stop on
Which airlines fly nonstop between Portland and St Louis?
The non-stop flights between Portland and St Louis are .
What’s the earliest departure time from PDX to STL Airport?
The earliest flight leaves PDX at 12:33 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Portland to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from PDX to STL?
Read the fare rules of the Portland to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Portland and St Louis?
operate flights between Portland and St Louis
How long does a flight from Portland to St Louis take?
It takes approximately 4 hour to fly non-stop from PDX to STL, which is 1707.87 miles by air.
Which airlines provide the cheapest flights from Portland (PDX) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from PDX were found on WN : USD 620
Do I need a passport to fly between PDX and STL?
No
What’s the latest departure time from PDX to STL ?
The last flight leaves PDX at 10:3700 am
Portland (PDX) to St Louis (STL): Airport Information
| Origin Airport | Portland International , Portland, US |
| Destination Airport | Lambert St Louis International , St Louis, US |
| Distance | 1708 miles |
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