Cheap flights from Portland to St. Louis (PDX - STL) from $78

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PDX — STL
Jun 11 — Jun 181

The best prices from Portland to Lambert-St Louis are usually found in January or November, booked 79 days in advance, depart on a Saturday or Tuesday and return on a Saturday

Cheap flight deals from Portland to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 6, 2024.

Popular in

December

Cheapest in

January

Round-trip from

$318

One-way from

$149
High demand for flights, 18% potential price rise
Best time to find cheap flights, 10% potential price drop
From Portland to Lambert-St Louis
One-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 Friday departure is the best way to save up to 17% 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 19 days before your planned departure. Booking around this time can save you about 47% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $454 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $465.

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

January can be a great time to fly to St. Louis from Portland with a flight ticket averaging about $432. Cheapflights users have found deals in the month of January for as cheap as $256. The most expensive prices can be found in the month of December.

What is the cheapest time of day to fly from PDX to STL?

Unlike in the morning, when flights are generally more expensive, you can save up to 31% on flights from Portland to St. Louis by exploring options for tickets in the evening.

Cheap Portland to St. Louis flights in June & July 2024

Find cheap flight options from Portland to St. Louis specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
Scroll through some of the best deals on flights from Portland to St. Louis in 2024. Check back regularly for other flight deals.
Tue 7/3011:43 amPDX - STL
1 stop7h 48mFrontier
Wed 8/78:02 pmSTL - PDX
1 stop13h 46mFrontier
Deal found 6/5$170
Tue 7/3011:43 amPDX - STL
1 stop7h 48mFrontier
Wed 8/710:32 pmSTL - PDX
2 stops21h 05mFrontier
Deal found 6/5$180
Wed 7/175:15 amPDX - STL
1 stop7h 51mMultiple Airlines
Sun 7/2112:58 pmSTL - PDX
1 stop21h 25mMultiple Airlines
Deal found 6/5$183
Tue 7/2311:43 amPDX - STL
1 stop7h 48mFrontier
Tue 7/303:47 pmSTL - PDX
1 stop17h 02mFrontier
Deal found 6/6$188
Fri 7/1912:49 amPDX - STL
1 stop6h 36mFrontier
Mon 7/227:51 pmSTL - PDX
1 stop6h 02mFrontier
Deal found 6/6$192
Tue 7/2311:43 amPDX - STL
1 stop7h 48mFrontier
Tue 7/3010:32 pmSTL - PDX
2 stops19h 28mFrontier
Deal found 6/6$193
Tue 7/236:28 pmPDX - STL
2 stops25h 03mFrontier
Tue 7/3010:32 pmSTL - PDX
2 stops19h 28mFrontier
Deal found 6/6$198
Thu 6/611:59 pmPDX - STL
1 stop6h 55mAmerican Airlines
Tue 6/115:27 pmSTL - PDX
1 stop9h 11mAmerican Airlines
Deal found 6/5$202
Fri 7/1912:49 amPDX - STL
1 stop6h 36mFrontier
Tue 7/2310:32 pmSTL - PDX
2 stops19h 28mFrontier
Deal found 6/6$206

Portland to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Portland and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Scroll through some of the best deals on flights from Portland to St. Louis in 2024. Check back regularly for other flight deals.
Wed 9/49:02 pmPDX - STL
1 stop14h 02mSpirit Airlines
Tue 9/101:59 pmSTL - PDX
1 stop13h 18mSpirit Airlines
Deal found 6/6$103
Tue 9/312:48 amPDX - STL
1 stop6h 49mMultiple Airlines
Wed 9/111:59 pmSTL - PDX
1 stop8h 03mMultiple Airlines
Deal found 6/5$138
Sat 9/78:41 amPDX - STL
1 stop12h 10mMultiple Airlines
Wed 9/111:59 pmSTL - PDX
1 stop13h 18mMultiple Airlines
Deal found 6/6$144
Fri 9/274:30 pmPDX - STL
1 stop15h 48mMultiple Airlines
Tue 10/11:59 pmSTL - PDX
1 stop8h 03mMultiple Airlines
Deal found 6/6$163
Fri 9/274:30 pmPDX - STL
1 stop15h 48mMultiple Airlines
Tue 10/18:00 amSTL - PDX
1 stop14h 21mMultiple Airlines
Deal found 6/5$164
Tue 7/3011:43 amPDX - STL
1 stop7h 48mFrontier
Wed 8/78:02 pmSTL - PDX
1 stop13h 46mFrontier
Deal found 6/5$170
Tue 8/2012:48 amPDX - STL
1 stop6h 49mMultiple Airlines
Mon 8/261:48 pmSTL - PDX
1 stop25h 09mMultiple Airlines
Deal found 6/6$173
Wed 8/214:30 pmPDX - STL
1 stop15h 48mMultiple Airlines
Mon 8/261:48 pmSTL - PDX
1 stop25h 09mMultiple Airlines
Deal found 6/6$178
Tue 7/3011:43 amPDX - STL
1 stop7h 48mFrontier
Wed 8/710:32 pmSTL - PDX
2 stops21h 05mFrontier
Deal found 6/5$180

Portland to St. Louis flights leaving soon

Find last-minute flight options from Portland to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Have a look at some of the last-minute flights available departing from Portland to St. Louis. To prevent any unwanted surprises, users should verify their flight info before booking.
Thu 6/1312:32 amPDX - STL
1 stop7h 08mFrontier
Mon 6/178:22 pmSTL - PDX
1 stop12h 28mFrontier
Deal found 6/5$247
Thu 6/134:02 pmPDX - STL
1 stop16h 40mFrontier
Mon 6/178:22 pmSTL - PDX
1 stop12h 28mFrontier
Deal found 6/6$251
Wed 6/1212:52 amPDX - STL
1 stop11h 40mFrontier
Mon 6/1710:00 pmSTL - PDX
1 stop12h 32mFrontier
Deal found 6/5$274
Thu 6/1312:32 amPDX - STL
1 stop7h 08mFrontier
Mon 6/177:29 pmSTL - PDX
2 stops23h 09mFrontier
Deal found 6/5$277
Fri 6/1411:53 pmPDX - STL
2 stops29h 07mMultiple Airlines
Mon 6/1712:00 pmSTL - PDX
2 stops12h 53mMultiple Airlines
Deal found 6/5$285
Sun 6/169:07 pmPDX - STL
1 stop14h 44mMultiple Airlines
Sat 6/228:02 pmSTL - PDX
1 stop14h 43mMultiple Airlines
Deal found 6/5$297
Thu 6/1312:32 amPDX - STL
1 stop7h 08mFrontier
Sat 6/158:02 pmSTL - PDX
1 stop5h 56mFrontier
Deal found 6/5$298
Wed 6/1212:52 amPDX - STL
1 stop11h 40mFrontier
Mon 6/1710:00 pmSTL - PDX
1 stop12h 32mFrontier
Deal found 6/6$304
Wed 6/1211:53 pmPDX - STL
2 stops10h 12mMultiple Airlines
Thu 6/138:35 pmSTL - PDX
2 stops28h 18mMultiple Airlines
Deal found 6/5$307

One-way flights to St. Louis from Portland

Search for one-way flight options from Portland to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Take a look at some of the best available options we've come across on one-way flights from Portland to St. Louis. Users needing a return flight from Portland to St. Louis should utilize the search form above.
Tue 6/253:15 pmPDX - STL
1 stop19h 50mSpirit Airlines
Deal found 6/5$78
Tue 8/2012:48 amPDX - STL
1 stop6h 49mFrontier
Deal found 6/6$87
Tue 10/112:48 amPDX - STL
1 stop6h 49mFrontier
Deal found 6/5$90
Wed 8/214:30 pmPDX - STL
1 stop15h 48mFrontier
Deal found 6/6$93
Wed 10/26:10 amPDX - STL
1 stop7h 27mAmerican Airlines
Deal found 6/5$98
Wed 6/1211:53 pmPDX - STL
2 stops14h 52mMultiple Airlines
Deal found 6/5$105
Sun 7/143:34 pmPDX - STL
1 stop17h 48mFrontier
Deal found 6/5$113
Thu 7/48:52 amPDX - STL
1 stop9h 10mFrontier
Deal found 6/4$116
Thu 7/115:22 pmPDX - STL
1 stop5h 33mDelta
Deal found 6/5$117

Find flights from Portland to St. Louis within your budget

Customize your flight search to find flights from Portland to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$103 - $332

Route

Depart

Return

Price

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Wed 9/4

1 stop14h 02m

Lambert-St Louis

Tue 9/10

1 stop13h 18m

$103

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Tue 9/3

1 stop6h 49m

Lambert-St Louis

Wed 9/11

1 stop8h 03m

$138

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Sat 9/7

1 stop12h 10m

Lambert-St Louis

Wed 9/11

1 stop13h 18m

$144

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Fri 9/27

1 stop15h 48m

Lambert-St Louis

Tue 10/1

1 stop8h 03m

$163

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Tue 7/30

1 stop7h 48m

Lambert-St Louis

Wed 8/7

1 stop13h 46m

$170

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Thu 8/22

1 stop7h 45m

Lambert-St Louis

Mon 8/26

1 stop8h 03m

$196

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Thu 7/18

1 stop5h 33m

Lambert-St Louis

Tue 7/23

1 stop7h 09m

$234

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Thu 8/22

1 stop10h 25m

Lambert-St Louis

Sun 8/25

1 stop17h 24m

$275

PortlandLambert-St Louis

PDX - STL

PDXSTL

Portland

Mon 8/19

2 stops12h 13m

Lambert-St Louis

Thu 8/22

1 stop8h 34m

$332

Flights are sorted by cheapest first

Deals found on 6/6

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to St. Louis. Price data was last updated on May 31, 2024.
The best time to book flights from Portland to St. Louis is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Portland to St. Louis. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Portland to St. Louis flight should consider departing on Thursday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Portland to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated June 6, 2024.
Read through reviews of airlines operating flights from Portland to St. Louis, such as Spirit Airlines, Frontier and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,222 reviews

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

8.1
Very good
9,222 reviews
8.1
Very good
9,222 reviews

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

8.0
Very good
10,368 reviews
8.1
Very good
9,222 reviews

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

7.4
Good
10,696 reviews
8.1
Very good
9,222 reviews

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

7.3
Good
14,227 reviews
8.1
Very good
9,222 reviews

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

7.2
Good
593 reviews
8.1
Very good
9,222 reviews

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Portland to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • 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 Spirit Airlines for just $103, but on average you can expect to pay $178.

  • Are there last-minute flights available from Portland to St. Louis for under $300?

    There are currently 20+ open flights from Portland to St. Louis within the next 7 days for less than $300.

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

    Currently priced at $103, 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. Search Cheapflights for deals from Frontier and American Airlines - these airlines can fly you to your destination from $170 and $196, respectively. Users have found that Spirit Airlines is 76% 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 $87 while deals on American Airlines start at $98 one-way.

  • What does PDX to STL mean?

    PDX stands for Portland Airport, while STL stands for Lambert-St Louis Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Where are the most common layover locations when flying from Portland to St. Louis?

  • What are some popular things to do or see while on a layover in Denver?

    If you're on a layover in Denver and looking for things to do, consider visiting Coors Field, 16th Street Mall, or Civic Center Park. Coors Field, 16th Street Mall, and Civic Center Park are located about 18.4 mi, 18.7 mi, and 18.7 mi, respectively from Denver Intl. Travelers can rent a car at Denver Intl for an average daily rate of $52 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Portland to St. Louis flights?

  • Can I find deals for flights from Portland to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Portland to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Portland to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portland to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Portland to St. Louis that include hotel bookings?

    Yes. In addition to deals on Portland to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to St. Louis.

  • Can I find deals for business class flights from Portland to St. Louis?

    Yes. Cheapflights offers flight deals from Portland to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Portland to St. Louis that allow pets onboard?

    Many airlines flying from Portland to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Portland to St. Louis?

    Yes, you can often find last-minute deals on Portland to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Portland to St. Louis flight deals updated?

    The Portland to St. Louis flight deals you see on this page were last updated on 6/6.

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

  • What is the cheapest month to book a flight from Portland to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Portland to St. Louis (average of $318). Flying from Portland to St. Louis in July is currently the most expensive (average of $365). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 6 airlines flying from Portland to St. Louis

Discover the top 6 airlines that operate flights from Portland to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$109Average$214FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$149Average$204FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$267Average$453FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$282Average$454FlexibilityNo cancel feeOn-time75%
DeltaCheapest$287Average$439FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$344Average$507FlexibilityNo cancel feeOn-time69%

Search flights from Portland to St. Louis by cabin class

Find flights from Portland to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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