Cheap flights from St. Louis to Portland (STL - PDX) from $59

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 6/12. 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 2 — Jun 91

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 May 28, 2024.

Popular in

March

Cheapest in

September

Round-trip from

$274

One-way from

$144
High demand for flights, 13% potential price rise
Best time to find cheap flights, 14% 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 128% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $174 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%.

When is the cheapest time to fly from St. Louis to Portland (STL - 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 Spirit Airlines flights from St. Louis to Portland

Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and Portland. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Peruse some of the lowest-priced Spirit Airlines flights we've found from St. Louis to Portland. Make sure to check back often as deals are often changing.
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/2511:58 amPDX - STL
1 stop23h 07mSpirit Airlines
Deal found 5/28$152
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/259:39 amPDX - STL
2 stops25h 26mSpirit Airlines
Deal found 5/28$156
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/2511:58 amPDX - STL
1 stop23h 07mSpirit Airlines
Deal found 5/27$163
Wed 6/191:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/259:39 amPDX - STL
2 stops25h 26mSpirit Airlines
Deal found 5/27$168
Wed 7/104:02 pmSTL - PDX
1 stop9h 39mSpirit Airlines
Wed 7/175:20 amPDX - STL
1 stop7h 46mSpirit Airlines
Deal found 5/27$171
Wed 7/104:02 pmSTL - PDX
1 stop9h 39mSpirit Airlines
Wed 7/175:20 amPDX - STL
1 stop7h 46mSpirit Airlines
Deal found 5/28$183
Wed 6/121:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Tue 6/189:39 amPDX - STL
2 stops25h 26mSpirit Airlines
Deal found 5/27$185
Fri 9/133:02 pmSTL - PDX
1 stop23h 16mSpirit Airlines
Tue 9/175:23 amPDX - STL
1 stop8h 18mSpirit Airlines
Deal found 5/27$190
Wed 7/104:02 pmSTL - PDX
2 stops29h 10mSpirit Airlines
Wed 7/175:20 amPDX - STL
1 stop7h 46mSpirit Airlines
Deal found 5/27$194

Cheap Delta flights from St. Louis to Portland

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Portland. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Some of the lowest-priced Delta flights we've found at this time heading from St. Louis to Portland. Deals are refreshing constantly so come back soon for more options.
Thu 9/56:06 amSTL - PDX
1 stop8h 46mDelta
Thu 10/245:21 pmPDX - STL
1 stop5h 09mDelta
Deal found 5/27$234
Mon 6/36:50 pmSTL - PDX
1 stop6h 52mDelta
Wed 6/512:40 amPDX - STL
1 stop8h 30mDelta
Deal found 5/28$238
Sat 11/96:30 amSTL - PDX
2 stops10h 02mDelta
Fri 11/1512:50 amPDX - STL
1 stop7h 30mDelta
Deal found 5/28$284
Sat 11/910:25 amSTL - PDX
2 stops10h 04mDelta
Sat 11/169:19 amPDX - STL
2 stops10h 11mDelta
Deal found 5/28$333
Mon 6/32:28 pmSTL - PDX
2 stops8h 10mDelta
Wed 6/512:40 amPDX - STL
1 stop8h 30mDelta
Deal found 5/28$695
Thu 6/62:28 pmSTL - PDX
2 stops8h 11mDelta
Sun 6/912:30 amPDX - STL
1 stop8h 05mDelta
Deal found 5/28$882
Mon 6/32:28 pmSTL - PDX
2 stops8h 10mDelta
Fri 6/77:35 pmPDX - STL
2 stops11h 40mDelta
Deal found 5/28$899
Sun 6/27:55 amSTL - PDX
2 stops10h 07mDelta
Tue 6/412:40 amPDX - STL
1 stop8h 30mDelta
Deal found 5/27$901
Thu 6/62:28 pmSTL - PDX
2 stops8h 11mDelta
Sun 6/912:30 amPDX - STL
1 stop8h 05mDelta
Deal found 5/27$1,016

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

Find cheap flight options from St. Louis to Portland specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Prices were last updated on May 28, 2024.
Scroll through some of the best deals on flights from St. Louis to Portland in 2024. Check back regularly for other flight deals.
Sat 6/18:04 pmSTL - PDX
1 stop15h 07mFrontier
Tue 6/119:03 pmPDX - STL
1 stop11h 39mFrontier
Deal found 5/28$179
Wed 5/298:04 pmSTL - PDX
1 stop12h 44mFrontier
Mon 6/312:35 amPDX - STL
1 stop10h 34mFrontier
Deal found 5/26$180
Sat 6/18:04 pmSTL - PDX
1 stop15h 07mFrontier
Tue 6/115:41 pmPDX - STL
2 stops15h 01mFrontier
Deal found 5/28$184
Wed 6/58:02 pmSTL - PDX
1 stop13h 48mFrontier
Fri 6/712:49 amPDX - STL
1 stop6h 40mFrontier
Deal found 5/27$185
Wed 6/261:55 pmSTL - PDX
1 stop12h 13mMultiple Airlines
Thu 7/412:56 amPDX - STL
1 stop6h 29mMultiple Airlines
Deal found 5/28$189
Wed 6/261:55 pmSTL - PDX
1 stop12h 13mMultiple Airlines
Wed 7/312:52 amPDX - STL
1 stop17h 10mMultiple Airlines
Deal found 5/28$195
Tue 5/282:00 pmSTL - PDX
1 stop8h 44mAmerican Airlines
Tue 6/49:55 pmPDX - STL
1 stop8h 38mAmerican Airlines
Deal found 5/27$196
Mon 6/34:05 pmSTL - PDX
1 stop21h 00mSpirit Airlines
Thu 6/610:16 pmPDX - STL
1 stop14h 00mSpirit Airlines
Deal found 5/27$198
Wed 5/296:18 pmSTL - PDX
1 stop6h 45mAmerican Airlines
Wed 6/511:55 pmPDX - STL
1 stop8h 37mAmerican Airlines
Deal found 5/28$199

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 2,740,132 searches. Data last updated May 28, 2024.
Scroll through some of the best deals on flights from St. Louis to Portland in 2024. Check back regularly for other flight deals.
Thu 9/127:29 pmSTL - PDX
1 stop22h 25mMultiple Airlines
Tue 9/175:23 amPDX - STL
1 stop8h 18mMultiple Airlines
Deal found 5/26$175
Sat 6/18:04 pmSTL - PDX
1 stop15h 07mFrontier
Tue 6/119:03 pmPDX - STL
1 stop11h 39mFrontier
Deal found 5/28$179
Wed 5/298:04 pmSTL - PDX
1 stop12h 44mFrontier
Mon 6/312:35 amPDX - STL
1 stop10h 34mFrontier
Deal found 5/26$180
Thu 9/127:29 pmSTL - PDX
1 stop22h 25mFrontier
Mon 9/164:30 pmPDX - STL
1 stop15h 48mFrontier
Deal found 5/27$181
Wed 7/104:02 pmSTL - PDX
1 stop9h 39mSpirit Airlines
Wed 7/175:20 amPDX - STL
1 stop7h 46mSpirit Airlines
Deal found 5/28$183
Sat 6/18:04 pmSTL - PDX
1 stop15h 07mFrontier
Tue 6/115:41 pmPDX - STL
2 stops15h 01mFrontier
Deal found 5/28$184
Wed 6/58:02 pmSTL - PDX
1 stop13h 48mFrontier
Fri 6/712:49 amPDX - STL
1 stop6h 40mFrontier
Deal found 5/27$185
Wed 8/2111:36 amSTL - PDX
2 stops23h 11mSpirit Airlines
Mon 8/2612:35 pmPDX - STL
2 stops25h 06mSpirit Airlines
Deal found 5/28$188
Wed 6/261:55 pmSTL - PDX
1 stop12h 13mMultiple Airlines
Thu 7/412:56 amPDX - STL
1 stop6h 29mMultiple Airlines
Deal found 5/28$189

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 2,740,132 searches. Data last updated May 28, 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 6/58:02 pmSTL - PDX
1 stop13h 48mFrontier
Fri 6/712:49 amPDX - STL
1 stop6h 40mFrontier
Deal found 5/27$185
Mon 6/34:05 pmSTL - PDX
1 stop21h 00mSpirit Airlines
Thu 6/610:16 pmPDX - STL
1 stop14h 00mSpirit Airlines
Deal found 5/27$198
Mon 6/310:21 pmSTL - PDX
1 stop12h 28mMultiple Airlines
Thu 6/610:16 pmPDX - STL
1 stop14h 00mMultiple Airlines
Deal found 5/27$203
Mon 6/312:15 pmSTL - PDX
2 stops12h 15mMultiple Airlines
Thu 6/610:16 pmPDX - STL
1 stop14h 00mMultiple Airlines
Deal found 5/27$207
Thu 6/63:32 pmSTL - PDX
1 stop17h 13mFrontier
Mon 6/103:34 pmPDX - STL
2 stops17h 08mFrontier
Deal found 5/27$215
Mon 6/38:04 pmSTL - PDX
1 stop13h 03mFrontier
Wed 6/512:49 amPDX - STL
1 stop11h 43mFrontier
Deal found 5/27$226
Mon 6/38:04 pmSTL - PDX
2 stops22h 10mFrontier
Wed 6/512:49 amPDX - STL
1 stop11h 43mFrontier
Deal found 5/27$231
Mon 6/36:50 pmSTL - PDX
1 stop6h 52mDelta
Fri 6/76:22 amPDX - STL
1 stop8h 39mDelta
Deal found 5/27$234
Mon 6/38:04 pmSTL - PDX
1 stop13h 03mFrontier
Thu 6/612:56 amPDX - STL
1 stop6h 44mFrontier
Deal found 5/27$235

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 2,740,132 searches. Data last updated May 28, 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 6/121:55 pmSTL - PDX
1 stop12h 13mSpirit Airlines
Deal found 5/28$59
Wed 8/74:02 pmSTL - PDX
1 stop9h 39mSpirit Airlines
Deal found 5/27$73
Mon 6/102:41 pmSTL - PDX
1 stop22h 27mSpirit Airlines
Deal found 5/27$78
Mon 6/102:41 pmSTL - PDX
2 stops23h 23mSpirit Airlines
Deal found 5/27$91
Sat 6/159:50 pmSTL - PDX
1 stop12h 42mFrontier
Deal found 5/27$96
Wed 6/127:29 pmSTL - PDX
2 stops21h 46mFrontier
Deal found 5/28$105
Tue 6/2511:57 amSTL - PDX
2 stops24h 56mSpirit Airlines
Deal found 5/27$111
Tue 6/2511:57 amSTL - PDX
3 stops33h 09mSpirit Airlines
Deal found 5/27$115
Sat 6/1512:15 pmSTL - PDX
2 stops12h 38mMultiple Airlines
Deal found 5/27$116

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 2,740,132 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$152 - $330

Route

Depart

Return

Price

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 6/19

1 stop12h 13m

Portland

Tue 6/25

1 stop23h 07m

$152

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 6/19

1 stop12h 13m

Portland

Tue 6/25

2 stops25h 26m

$156

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 6/19

1 stop12h 13m

Portland

Tue 6/25

1 stop23h 07m

$163

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 9/12

1 stop22h 25m

Portland

Tue 9/17

1 stop8h 18m

$175

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Fri 9/13

1 stop12h 25m

Portland

Mon 9/16

1 stop9h 02m

$180

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 9/12

1 stop22h 25m

Portland

Mon 9/16

1 stop15h 48m

$181

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sat 11/9

1 stop7h 18m

Portland

Sat 11/16

1 stop6h 21m

$196

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 9/5

1 stop8h 46m

Portland

Thu 10/24

1 stop5h 09m

$234

Lambert-St LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Sun 6/30

1 stop7h 11m

Portland

Sat 7/6

1 stop21h 25m

$330

Flights are sorted by cheapest first

Deals found on 5/28

When is the best time to 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 24, 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

When is the cheapest time 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 May 26, 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. Monday at noon 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

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 May 28, 2024.
Read through reviews of airlines operating flights from St. Louis to Portland, such as Spirit Airlines, Delta and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,502 reviews

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.0
Very good
10,502 reviews
8.0
Very good
10,502 reviews

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.3
Good
14,316 reviews
8.0
Very good
10,502 reviews

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.2
Good
599 reviews
8.0
Very good
10,502 reviews

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

6.4
Okay
8,617 reviews
8.0
Very good
10,502 reviews

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

6.3
Okay
4,018 reviews
8.0
Very good
10,502 reviews

Overall

8.0

Food

7.4

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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 $152, but on average you can expect to pay $184.

  • 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 $152, 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 $180 and $196, respectively. These flights start at 63% 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 $59. Frontier flights start at $96 while deals on American Airlines start at $169 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 $48 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 5/28.

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

  • When is the best time 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 $396). 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 2,740,132 searches. Data last updated May 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$101Average$202FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
FrontierCheapest$111Average$215FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Alaska AirlinesCheapest$240Average$399FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
American AirlinesCheapest$279Average$438FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$296Average$415FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$309Average$462FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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 May 28, 2024.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Portland?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from St. Louis to Portland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Portland?

Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis to Portland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from St. Louis to Portland with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from St. Louis to Portland flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from St. Louis to Portland become cheaper?

Yes! Start tracking prices for St. Louis to Portland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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