Cheap flight from Portland to St. Louis from Rp 3,515,847
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Flights from Portland to St. Louis
Cheap flight deals from Portland to St. Louis
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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PDX 00:467h 52m1 stopsSTL 10:38Portland - St. Louis | Thu, Jul 24 | Delta Air Lines
STL 17:377h 49m1 stopsPDX 23:26St. Louis - Portland | Mon, Jul 28 | Delta Air LinesRp 3,515,847 Rp 5,134,00732% OFF32% OFFRp 5,134,007 Rp 3,515,847 -
PDX 00:407h 53m1 stopsSTL 10:33Portland - St. Louis | Sat, Aug 2 | Delta Air Lines
STL 19:156h 20m1 stopsPDX 23:35St. Louis - Portland | Tue, Aug 5 | Delta Air LinesRp 3,554,358 Rp 5,134,00731% OFF31% OFFRp 5,134,007 Rp 3,554,358
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PDX 00:527h 40m1 stopsSTL 10:32Portland - St. Louis | Thu, Jul 3 | Delta Air Lines
STL 19:156h 20m1 stopsPDX 23:35St. Louis - Portland | Tue, Jul 8 | Delta Air LinesRp 3,565,685 Rp 5,134,00731% OFF31% OFFRp 5,134,007 Rp 3,565,685
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PDX 06:208h 22m1 stopsSTL 16:42Portland - St. Louis | Wed, Jul 9 | Delta Air Lines
STL 17:377h 49m1 stopsPDX 23:26St. Louis - Portland | Mon, Jul 14 | Delta Air LinesRp 3,717,46428% OFFRp 5,134,007 Rp 3,717,464
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PDX 17:065h 37m1 stopsSTL 00:43Portland - St. Louis | Wed, Jun 18 | Delta Air Lines
STL 19:156h 24m1 stopsPDX 23:39St. Louis - Portland | Fri, Jun 20 | Delta Air LinesRp 3,991,57322% OFFRp 5,134,007 Rp 3,991,573
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PDX 06:3524h 36m1 stopsSTL 09:11Portland - St. Louis | Sun, Jul 6 | Frontier Airlines
STL 19:2916h 42m1 stopsPDX 10:11St. Louis - Portland | Sat, Jul 12 | Frontier AirlinesRp 4,408,40014% OFFRp 5,134,007 Rp 4,408,400 -
PDX 00:405h 54m1 stopsSTL 08:34Portland - St. Louis | Sat, Aug 9 | Delta Air Lines
STL 14:255h 35m1 stopsPDX 18:00St. Louis - Portland | Tue, Aug 12 | Delta Air LinesRp 4,519,40312% OFFRp 5,134,007 Rp 4,519,403
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PDX 23:118h 22m1 stopsSTL 09:33Portland - St. Louis | Tue, Jul 15 | Delta Air Lines
STL 14:159h 46m1 stopsPDX 22:01St. Louis - Portland | Tue, Jul 22 | Delta Air LinesRp 4,639,46810% OFFRp 5,134,007 Rp 4,639,468
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PDX 17:055h 33m1 stopsSTL 00:38Portland - St. Louis | Wed, Aug 13 | Delta Air Lines
STL 07:356h 38m1 stopsPDX 12:13St. Louis - Portland | Sat, Aug 16 | Delta Air LinesRp 4,662,1219% OFFRp 5,134,007 Rp 4,662,121
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PDX 17:5013h 21m1 stopsSTL 09:11Portland - St. Louis | Thu, Jul 24 | Frontier Airlines
STL 14:2724h 24m1 stopsPDX 12:51St. Louis - Portland | Sun, Jul 27 | Frontier AirlinesRp 4,723,2868% OFFRp 5,134,007 Rp 4,723,286
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PDX 13:0017h 25m1 stopsSTL Invalid DatePortland - St. Louis | Thu, Jun 19 | Normal Airline
STL 15:006hNonstopPDX 16:00St. Louis - Portland | Sat, Jun 21 | Normal AirlineFind More FlightsFind More Flights
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PDX 00:405h 54m1 stopsSTL 08:34Portland - St. Louis | Wed, Jul 16 | Delta Air LinesRp 1,359,219 Rp 2,587,93447% OFF47% OFFRp 2,587,934 Rp 1,359,219
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PDX 00:405h 54m1 stopsSTL 08:34Portland - St. Louis | Wed, Jul 9 | Delta Air LinesRp 1,381,873 Rp 2,587,93447% OFF47% OFFRp 2,587,934 Rp 1,381,873
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PDX 00:405h 54m1 stopsSTL 08:34Portland - St. Louis | Sat, Jul 12 | Delta Air LinesRp 1,585,756 Rp 2,587,93439% OFF39% OFFRp 2,587,934 Rp 1,585,756
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PDX 00:467h 52m1 stopsSTL 10:38Portland - St. Louis | Fri, Jul 11 | Delta Air LinesRp 1,628,79837% OFFRp 2,587,934 Rp 1,628,798
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PDX 00:405h 54m1 stopsSTL 08:34Portland - St. Louis | Thu, Jul 10 | Delta Air LinesRp 1,805,49630% OFFRp 2,587,934 Rp 1,805,496
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PDX 00:405h 54m1 stopsSTL 08:34Portland - St. Louis | Sat, Jul 26 | Delta Air LinesRp 1,828,15028% OFFRp 2,587,934 Rp 1,828,150
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PDX 11:556h 35m1 stopsSTL 20:30Portland - St. Louis | Fri, Jul 4 | Delta Air LinesRp 2,283,48812% OFFRp 2,587,934 Rp 2,283,488
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PDX 00:405h 54m1 stopsSTL 08:34Portland - St. Louis | Sun, Aug 10 | Delta Air LinesRp 2,326,53010% OFFRp 2,587,934 Rp 2,326,530
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PDX 23:118h 22m1 stopsSTL 09:33Portland - St. Louis | Mon, Jul 14 | Delta Air LinesRp 2,331,06110% OFFRp 2,587,934 Rp 2,331,061
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PDX 00:405h 54m1 stopsSTL 08:34Portland - St. Louis | Tue, Jul 8 | Delta Air LinesRp 2,380,8998% OFFRp 2,587,934 Rp 2,380,899
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PDX 13:0017h 25m1 stopsSTL Invalid DatePortland - St. Louis | Thu, Jun 19 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Info | Portland to St. Louis
| Cheapest one-way flight price | Rp 1,359,218 |
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| Cheapest round-trip ticket price | Rp 7,086,061 |
| Off-season for travel | June |
| Peak season for travel | March |
| Flight distance | 2,763.15 km |
| Average flight time | 3 hours 40 minutes |
| Popular airline | American Airlines |
When is the cheapest time to fly from Portland to St. Louis?
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
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When are flight tickets from Portland (PDX) to St. Louis (STL) the cheapest?
Airlines adjust prices for flights from Portland to St. Louis based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Portland (PDX) to St. Louis (STL) cost?
According to Trip.com's data, the lowest price is around Rp 7,317,128. -
How long does it take to fly from Portland (PDX) to St. Louis (STL) and what is the distance?
It takes around 3 hours 40 minutes to fly from Portland (PDX) to St. Louis (STL). -
What are the most popular airlines that fly from Portland (PDX) to St. Louis (STL)?
Airlines with flights from Portland (PDX) to St. Louis (STL): Southwest Airlines.
How to find a cheap flight from Portland to St. Louis
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Portland to St. Louis. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest Portland to St. Louis ticket.
Tap "Date" in the flight search bar to browse the calendar and find airfare from Portland to St. Louis for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is Rp 1359219 for a one-way ticket on Wed, Jul 16.
Compare cheap Portland to St. Louis flight deals from hundreds of airlines.
Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from Portland to St. Louis. The most affordable airline currently operating on this route is Delta Air Lines.
Set up a Price Alert to track fare drops.
Set up a Price Alert for your Portland to St. Louis route to track ticket prices effortlessly—no need to check manually every day.
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Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
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