Cheap flights from Portland to St. Louis (PDX - STL)

PDX — STL
Dec 12 — Dec 191

The best prices from Portland to Lambert-St Louis are usually found in February or January, booked 43 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

How to find the cheapest flight from Portland (PDX) to St. Louis (STL)

All the information you need to plan the best PDX to STL flight in 2022: compare Portland to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.

PDX - STL

Price

$301 - $686

STL

Temperature

32 - 80.6 °F

STL

Rainfall

2.2 - 4.7 inches

Popular inJulyHigh demand for flights, 32% potential price rise
Cheapest inFebruaryBest time to find cheap flights, 35% potential price drop
Round-trip from$301From Portland to Lambert-St Louis
One-way from$142One-way flight from Portland to Lambert-St Louis

What is the cheapest day to fly round-trip from Portland to St. Louis?

Travelers have found that booking a Monday departure is the best way to save up to 40% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Portland to St. Louis?

To save on the cost of your flight from Portland to St. Louis, book at least 44 days before your planned departure. Booking around this time can save you about 25% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $502 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $561.

What is the cheapest month to fly from Portland to St. Louis?

February can be a great time to fly to St. Louis from Portland with a flight ticket averaging about $466. Cheapflights users have found deals in the month of February for as cheap as $215. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from Portland to St. Louis (PDX - STL)?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 30% on flights from Portland to St. Louis by exploring options for tickets in the evening.

Cheap flights from Portland to St. Louis in December, January 2022

The best prices found for PDX to STL flights for December, January
Jan 19 - Jan 27
PDX

Portland

STL

Lambert-St Louis

1 stop

5h 43m
STL

Lambert-St Louis

PDX

Portland

1 stop

9h 29m
$160

Multiple Airlines

Pick Dates

Deal found 12/4

Dec 13 - Jan 5
PDX

Portland

STL

Lambert-St Louis

1 stop

15h 06m
STL

Lambert-St Louis

PDX

Portland

1 stop

8h 27m
$165

Frontier

Pick Dates

Deal found 12/7

Dec 12 - Dec 15
PDX

Portland

STL

Lambert-St Louis

1 stop

11h 02m
STL

Lambert-St Louis

PDX

Portland

1 stop

21h 46m
$171

Frontier

Pick Dates

Deal found 12/5

Portland to St. Louis 2022 flight deals

Cheap flights to St. Louis from Portland found for this year
Dec 13 - Jan 5
PDX

Portland

STL

Lambert-St Louis

1 stop

15h 06m
STL

Lambert-St Louis

PDX

Portland

1 stop

8h 27m
$165

Frontier

Pick Dates

Deal found 12/7

Dec 12 - Dec 15
PDX

Portland

STL

Lambert-St Louis

1 stop

11h 02m
STL

Lambert-St Louis

PDX

Portland

1 stop

21h 46m
$171

Frontier

Pick Dates

Deal found 12/5

Dec 15 - Dec 19
PDX

Portland

STL

Lambert-St Louis

1 stop

15h 30m
STL

Lambert-St Louis

PDX

Portland

1 stop

10h 23m
$188

Frontier

Pick Dates

Deal found 12/6

Cheap Frontier flights from Portland to St. Louis

Jan 10 - Jan 14
PDX

Portland

STL

Lambert-St Louis

1 stop

23h 26m
STL

Lambert-St Louis

PDX

Portland

1 stop

7h 50m
$165

Frontier

Pick Dates

Deal found 12/6

Dec 12 - Dec 15
PDX

Portland

STL

Lambert-St Louis

1 stop

11h 02m
STL

Lambert-St Louis

PDX

Portland

1 stop

21h 46m
$171

Frontier

Pick Dates

Deal found 12/5

Mar 13 - Mar 22
PDX

Portland

STL

Lambert-St Louis

1 stop

20h 37m
STL

Lambert-St Louis

PDX

Portland

1 stop

21h 44m
$172

Frontier

Pick Dates

Deal found 12/5

Cheap Spirit Airlines flights from Portland to St. Louis

Feb 1 - Feb 6
PDX

Portland

STL

Lambert-St Louis

1 stop

12h 31m
STL

Lambert-St Louis

PDX

Portland

1 stop

10h 59m
$161

Spirit Airlines

Pick Dates

Deal found 12/6

Jan 14 - Jan 23
PDX

Portland

STL

Lambert-St Louis

1 stop

13h 24m
STL

Lambert-St Louis

PDX

Portland

1 stop

10h 59m
$183

Spirit Airlines

Pick Dates

Deal found 12/5

May 9 - May 15
PDX

Portland

STL

Lambert-St Louis

1 stop

6h 26m
STL

Lambert-St Louis

PDX

Portland

1 stop

15h 39m
$276

Spirit Airlines

Pick Dates

Deal found 12/4

Last minute flights from Portland to St. Louis

Late deals on return flights to St. Louis from Portland, departing today and this week
Dec 13 - Jan 5
PDX

Portland

STL

Lambert-St Louis

1 stop

15h 06m
STL

Lambert-St Louis

PDX

Portland

1 stop

8h 27m
$165

Frontier

Pick Dates

Deal found 12/7

Dec 12 - Dec 15
PDX

Portland

STL

Lambert-St Louis

1 stop

11h 02m
STL

Lambert-St Louis

PDX

Portland

1 stop

21h 46m
$171

Frontier

Pick Dates

Deal found 12/5

Dec 15 - Dec 19
PDX

Portland

STL

Lambert-St Louis

1 stop

15h 30m
STL

Lambert-St Louis

PDX

Portland

1 stop

10h 23m
$188

Frontier

Pick Dates

Deal found 12/6

One-way flights to St. Louis from Portland

The cheapest one-way flights from Portland to St. Louis
Jan 4
PDX

Portland

STL

Lambert-St Louis

1 stop

13h 48m
$78

Spirit Airlines

Pick Dates

Deal found 12/6

Jan 4
PDX

Portland

STL

Lambert-St Louis

1 stop

13h 48m
$79

Spirit Airlines

Pick Dates

Deal found 12/5

Jan 11
PDX

Portland

STL

Lambert-St Louis

1 stop

12h 31m
$80

Spirit Airlines

Pick Dates

Deal found 12/7

Related info for your journey

Useful info, stats and facts about Portland to St. Louis flights.

Which airlines flying from Portland to Lambert-St Louis have flexible cancellations due to COVID-19?

Some of our airline partners flying from Portland to Lambert-St Louis have new flexible policies in place due to COVID-19. Delta, United Airlines, and Frontier are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Delta with this kind of flexibility.

Can I find flights from Portland to St. Louis for under $200 on Cheapflights?

Yes, there are multiple flights from Portland to St. Louis for under $200. The cheapest flight booked recently is on Multiple Airlines for just $160, but on average you can expect to pay $189.

Are there last-minute flights available from Portland to St. Louis for under $200?

There are currently 20+ open flights from Portland to St. Louis within the next 7 days for less than $200.

How popular is this Portland to St. Louis flight route?

This flight path from Portland to Lambert-St Louis was viewed by 11 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the cheapest airlines flying from Portland to St. Louis round-trip?

Currently priced at $161, Spirit Airlines will fly you from Portland to St. Louis and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Frontier for as low as $165. Users have found that Spirit Airlines is 65% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Portland to St. Louis one-way?

To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $78. Frontier flights start at $86 while deals on United Airlines start at $162 one-way.

What are the most popular airlines that fly from Portland to St. Louis?

Before booking your flight from Portland to St. Louis check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

What are the cheapest flights from Portland to St. Louis?

Looking at all options, your cheapest flight can be booked for $200. While the most popular route (Portland - Lambert-St Louis) can be booked for $166 on average our data indicates $789 when flying from Portland to St. Louis.

Alternative routes for Portland to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Portland to St. Louis

The chart below displays the airlines Cheapflights users traveling from Portland to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$15Average$20FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
Spirit AirlinesCheapest$144Average$238FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
FrontierCheapest$161Average$355FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
DeltaCheapest$237Average$525FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
American AirlinesCheapest$257Average$559FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
Alaska AirlinesCheapest$316Average$529FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search Alaska Airlines flights
United AirlinesCheapest$324Average$637FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights

Hourly flight availability from Portland to St. Louis

See what time of day planes typically take off from Portland to St. Louis
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
100%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM