Cheap flights from St. Louis to Portland (STL - PDX) from $61

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 10/2. 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.
STL — PDX
Jun 11 — Jun 181

The best prices from Lambert-St Louis to Portland are usually found in September or February, booked 10 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from St. Louis to Portland

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Portland (PDX). 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

March

Cheapest in

September

Round-trip from

$274

One-way from

$117
High demand for flights, 13% potential price rise
Best time to find cheap flights, 13% potential price drop
From Lambert-St Louis to Portland
One-way flight from Lambert-St Louis to Portland

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

Saturday flights are generally found to be more expensive for flights from St. Louis to Portland. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Portland.

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

To save on the cost of your flight from St. Louis to Portland, book at least 11 days before your planned departure. Booking around this time can save you about 111% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $188 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $455.

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

The best pricing can be found in the month of September. Prices to Portland from St. Louis average $414. You can even find prices in September for less than $414, as users have found deals to Portland from as low as $167. The month of March appears to be one of the more expensive times to travel to Portland from St. Louis. Flying in the targeted month can save you up to 14%.

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

When flying from St. Louis to Portland, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 35% versus a flight at noon.

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

Find cheap flight options from St. Louis to Portland 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 St. Louis to Portland in 2024. Check back regularly for other flight deals.
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/259:39 amPDX - STL
2 stops25h 26mSpirit Airlines
Deal found 6/5$133
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/253:15 pmPDX - STL
1 stop19h 50mSpirit Airlines
Deal found 6/5$145
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/2511:58 amPDX - STL
1 stop23h 07mSpirit Airlines
Deal found 6/6$154
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/259:39 amPDX - STL
2 stops25h 26mSpirit Airlines
Deal found 6/6$168
Tue 7/303:47 pmSTL - PDX
1 stop17h 02mFrontier
Mon 8/1912:48 amPDX - STL
1 stop9h 02mFrontier
Deal found 6/6$171
Fri 7/2610:32 pmSTL - PDX
1 stop24h 50mMultiple Airlines
Wed 7/315:15 amPDX - STL
1 stop7h 51mMultiple Airlines
Deal found 6/4$180
Sun 7/2112:58 pmSTL - PDX
1 stop21h 25mMultiple Airlines
Wed 7/245:15 amPDX - STL
1 stop7h 51mMultiple Airlines
Deal found 6/5$183
Fri 7/2610:32 pmSTL - PDX
2 stops22h 12mMultiple Airlines
Wed 7/315:15 amPDX - STL
1 stop7h 51mMultiple Airlines
Deal found 6/4$185
Wed 7/314:02 pmSTL - PDX
1 stop9h 39mMultiple Airlines
Sat 8/37:47 pmPDX - STL
2 stops23h 44mMultiple Airlines
Deal found 6/5$188

St. Louis to Portland 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Portland 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 St. Louis to Portland in 2024. Check back regularly for other flight deals.
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/259:39 amPDX - STL
2 stops25h 26mSpirit Airlines
Deal found 6/5$133
Wed 9/411:36 amSTL - PDX
1 stop13h 39mSpirit Airlines
Tue 9/245:23 amPDX - STL
1 stop8h 18mSpirit Airlines
Deal found 6/5$144
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/253:15 pmPDX - STL
1 stop19h 50mSpirit Airlines
Deal found 6/5$145
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/2511:58 amPDX - STL
1 stop23h 07mSpirit Airlines
Deal found 6/6$154
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/259:39 amPDX - STL
2 stops25h 26mSpirit Airlines
Deal found 6/6$168
Tue 7/303:47 pmSTL - PDX
1 stop17h 02mFrontier
Mon 8/1912:48 amPDX - STL
1 stop9h 02mFrontier
Deal found 6/6$171
Sat 8/3111:41 pmSTL - PDX
1 stop11h 05mFrontier
Sat 9/78:41 amPDX - STL
1 stop12h 10mFrontier
Deal found 6/5$177
Sat 8/3111:41 pmSTL - PDX
1 stop11h 05mFrontier
Fri 9/612:48 amPDX - STL
1 stop6h 49mFrontier
Deal found 6/5$179
Mon 9/29:26 pmSTL - PDX
1 stop13h 20mFrontier
Fri 9/612:48 amPDX - STL
1 stop6h 49mFrontier
Deal found 6/5$180

St. Louis to Portland flights leaving soon

Find last-minute flight options from St. Louis to Portland 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 flights available from St. Louis to Portland departing last-minute. It's wise to confirm all flight details are correct before booking.
Wed 6/128:02 pmSTL - PDX
1 stop13h 48mFrontier
Tue 6/185:41 pmPDX - STL
2 stops15h 01mFrontier
Deal found 6/5$193
Wed 6/128:02 pmSTL - PDX
1 stop13h 48mMultiple Airlines
Tue 6/253:15 pmPDX - STL
1 stop19h 50mMultiple Airlines
Deal found 6/5$204
Wed 6/128:02 pmSTL - PDX
1 stop13h 48mFrontier
Mon 6/2412:49 amPDX - STL
1 stop11h 58mFrontier
Deal found 6/5$211
Wed 6/128:02 pmSTL - PDX
1 stop13h 48mFrontier
Tue 6/189:05 pmPDX - STL
1 stop11h 37mFrontier
Deal found 6/5$212
Wed 6/128:02 pmSTL - PDX
1 stop13h 48mFrontier
Tue 6/255:41 pmPDX - STL
2 stops15h 01mFrontier
Deal found 6/5$216
Tue 6/113:47 pmSTL - PDX
1 stop17h 03mFrontier
Sun 6/234:02 pmPDX - STL
1 stop16h 40mFrontier
Deal found 6/5$217
Tue 6/113:47 pmSTL - PDX
1 stop17h 03mFrontier
Tue 6/259:05 pmPDX - STL
1 stop11h 37mFrontier
Deal found 6/5$226
Tue 6/113:47 pmSTL - PDX
1 stop17h 03mMultiple Airlines
Thu 6/2710:16 pmPDX - STL
1 stop14h 00mMultiple Airlines
Deal found 6/5$227
Tue 6/113:47 pmSTL - PDX
1 stop17h 03mFrontier
Tue 6/255:41 pmPDX - STL
2 stops15h 01mFrontier
Deal found 6/5$231

One-way flights to Portland from St. Louis

Search for one-way flight options from St. Louis to Portland. 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.
Users traveling one-way from St. Louis to Portland can select one of these great deals. Users needing a return flight from St. Louis to Portland should utilize the search form above.
Wed 10/21:59 pmSTL - PDX
1 stop13h 18mSpirit Airlines
Deal found 6/5$61
Mon 8/261:48 pmSTL - PDX
1 stop20h 24mSpirit Airlines
Deal found 6/5$67
Wed 10/21:59 pmSTL - PDX
2 stops22h 01mSpirit Airlines
Deal found 6/5$77
Mon 8/261:48 pmSTL - PDX
2 stops27h 28mSpirit Airlines
Deal found 6/5$80
Tue 6/253:23 pmSTL - PDX
2 stops34h 45mSpirit Airlines
Deal found 6/6$99
Fri 6/145:36 pmSTL - PDX
1 stop8h 23mFrontier
Deal found 6/5$107
Tue 6/253:23 pmSTL - PDX
3 stops29h 43mSpirit Airlines
Deal found 6/6$113
Fri 6/215:36 pmSTL - PDX
1 stop8h 10mFrontier
Deal found 6/5$116
Tue 6/255:56 pmSTL - PDX
1 stop7h 21mDelta
Deal found 6/6$117

Find flights from St. Louis to Portland within your budget

Customize your flight search to find flights from St. Louis to Portland 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

$133 - $328

Route

Depart

Return

Price

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 6/19

1 stop12h 13m

Portland

Tue 6/25

2 stops25h 26m

$133

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 9/4

1 stop13h 39m

Portland

Tue 9/24

1 stop8h 18m

$144

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 6/19

1 stop12h 13m

Portland

Tue 6/25

1 stop19h 50m

$145

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sat 8/31

1 stop11h 05m

Portland

Sat 9/7

1 stop12h 10m

$177

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sat 8/31

1 stop11h 05m

Portland

Fri 9/6

1 stop6h 49m

$179

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sun 7/21

1 stop21h 25m

Portland

Wed 7/24

1 stop7h 51m

$183

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 9/3

1 stop6h 36m

Portland

Tue 9/24

1 stop6h 12m

$196

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sun 9/1

1 stop6h 26m

Portland

Tue 9/10

1 stop8h 15m

$234

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 9/3

1 stop9h 09m

Portland

Sun 9/22

1 stop6h 25m

$328

Flights are sorted by cheapest first

Deals found on 6/5

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Portland. Price data was last updated on May 31, 2024.
Booking 10 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Portland. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Portland flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday 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 St. Louis to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from St. Louis 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 Portland by month

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

PDX

Temperature

41 - 69.8 °F

If weather is an important factor for your trip to Portland, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated June 6, 2024.
Read through reviews of airlines operating flights from St. Louis to Portland, such as Spirit Airlines, American Airlines and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,222 reviews

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

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

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

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

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

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

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

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

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

Reviews

1 / 10

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

6.4
Okay
8,567 reviews
8.1
Very good
9,222 reviews

Overall

8.1

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

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 St. Louis to Portland. 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 St. Louis to Portland for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Portland for under $200. The cheapest flight booked recently is on Spirit Airlines for just $133, but on average you can expect to pay $181.

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

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

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

    Currently priced at $133, Spirit Airlines will fly you from St. Louis to Portland 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 $177 and $196, respectively. These flights start at 67% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $61. Frontier flights start at $107 while deals on Delta start at $117 one-way.

  • What does STL to PDX mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lambert-St Louis Airport to Portland Airport flight would often be abbreviated as a STL to PDX flight.

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

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

    Denver travelers tend to visit Coors Field, 16th Street Mall, and Civic Center Park more than anywhere else. Coors Field, 16th Street Mall, and Civic Center Park can be accessed by traveling approximately 18.4 mi, 18.7 mi, and 18.7 mi, respectively from Denver Intl. Those looking to explore during their layover in Denver can rent a car from Denver Intl for about $52 per day.

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

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

    The amount of baggage you can bring on your St. Louis to Portland 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 St. Louis to Portland with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Portland 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 St. Louis to Portland that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Portland 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 St. Louis to Portland that allow pets onboard?

    Many airlines flying from St. Louis to Portland 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 St. Louis to Portland?

    Yes, you can often find last-minute deals on St. Louis to Portland 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 St. Louis to Portland flight deals updated?

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

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

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

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Portland (average of $274). Flying from St. Louis to Portland in July is currently the most expensive (average of $394). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from St. Louis to Portland

Discover the top 6 airlines that operate flights from St. Louis to Portland. 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
Spirit AirlinesCheapest$100Average$200FlexibilityNo cancel feeOn-time65%
FrontierCheapest$111Average$215FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$239Average$397FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$277Average$435FlexibilityNo cancel feeOn-time71%
DeltaCheapest$296Average$408FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$313Average$462FlexibilityNo cancel feeOn-time69%

Search flights from St. Louis to Portland by cabin class

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

Weekly flight availability from St. Louis to Portland

Explore weekly flight availability from St. Louis to Portland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 6, 2024.
Sunday1daily flight
Monday0daily flights
Tuesday0daily flights
Wednesday0daily flights
Thursday0daily flights
Friday0daily flights
Saturday0daily flights
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