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$66+ Cheap flights from St. Louis (STL) to Salem, OR

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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PDX
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Salem are usually found in January or September, booked 52 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from St. Louis to Salem

Keep the following information in mind while searching for St. Louis to Salem flight deals. Data was last updated January 8, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$165
(Kiwi.com)

One-way from

$66
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$289
Provider with most accurate pricing for Lambert-St Louis-Portland flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Portland flights.
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From Lambert-St Louis to Salem
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One-way flight from Lambert-St Louis to Salem
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Highest demand for flights based on searches. 4% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from St. Louis to Salem

Cheapest flights from St. Louis to Salem
Explore the most affordable flight options available from St. Louis to Salem. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/19:32 pmSTL - PDX
1 stop15h 46mFrontier
Fri 2/610:44 amPDX - STL
2 stops26h 02mFrontier
Deal found 1/6$165
This Delta deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/263:31 pmSTL - PDX
1 stop7h 01mDelta
Fri 2/612:40 amPDX - STL
1 stop8h 03mDelta
Deal found 1/7$177
This Southwest deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:45 pmSTL - PDX
2 stops9h 00mSouthwest
Tue 4/2111:55 pmPDX - STL
1 stop7h 35mSouthwest
Deal found 1/7$178
This Southwest deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/286:20 amSTL - PDX
1 stop6h 15mSouthwest
Wed 2/46:45 amPDX - STL
2 stops8h 45mSouthwest
Deal found 1/7$182
This American Airlines deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:00 amSTL - PDX
1 stop6h 58mAmerican Airlines
Tue 3/311:40 pmPDX - STL
1 stop9h 21mAmerican Airlines
Deal found 1/6$189
This Kiwi.com deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1210:47 pmSTL - PDX
1 stop12h 11mFrontier
Sun 3/1512:04 pmPDX - STL
1 stop19h 45mFrontier
Deal found 1/8$190
This Frontier deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2910:01 pmSTL - PDX
1 stop13h 48mFrontier
Thu 2/511:28 amPDX - STL
1 stop7h 38mFrontier
Deal found 1/8$201
This Alaska Airlines deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/262:50 pmSTL - PDX
1 stop7h 57mAlaska Airlines
Fri 2/61:38 pmPDX - STL
1 stop7h 08mAlaska Airlines
Deal found 1/7$209
This Delta deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/316:40 amSTL - PDX
2 stops16h 19mDelta
Thu 2/56:15 amPDX - STL
1 stop8h 30mDelta
Deal found 1/7$215
This Kiwi.com deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:46 pmSTL - PDX
1 stop17h 12mFrontier
Fri 3/2712:52 pmPDX - STL
2 stops18h 57mFrontier
Deal found 1/8$217

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Salem 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 2,558,603 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from St. Louis to Salem that are best for you.

Fly from

St. Louis

Fly to

Salem

Route

Depart

Return

Price

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 4/14

3:25 pm-8:07 pm

1 stop6h 42m

Portland

Tue 4/21

5:08 pm-12:22 am

1 stop5h 14m

$177

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 2/11

3:31 pm-8:32 pm

1 stop7h 01m

Portland

Fri 2/13

12:40 am-10:44 am

1 stop8h 04m

$177

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 5/6

6:45 pm-11:53 pm

1 stop7h 08m

Portland

Tue 5/12

5:05 pm-12:36 am

1 stop5h 31m

$177

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 1/27

3:31 pm-8:32 pm

1 stop7h 01m

Portland

Tue 2/3

1:53 pm-11:25 pm

1 stop7h 32m

$177

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Mon 1/26

3:31 pm-8:32 pm

1 stop7h 01m

Portland

Thu 2/5

6:15 am-4:45 pm

1 stop8h 30m

$177

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Wed 1/28

6:10 am-12:46 pm

1 stop8h 36m

Portland

Tue 2/3

1:39 pm-9:38 pm

1 stop5h 59m

$177

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 2/10

2:50 pm-8:47 pm

1 stop7h 57m

Portland

Sun 2/15

6:00 am-2:23 pm

1 stop6h 23m

$209

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Tue 1/27

2:50 pm-8:47 pm

1 stop7h 57m

Portland

Fri 2/6

2:38 pm-10:46 pm

1 stop6h 08m

$209

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 1/29

6:10 am-12:46 pm

1 stop8h 36m

Portland

Tue 2/3

7:10 am-9:38 pm

2 stops12h 28m

$215

St. LouisPortland

STL - PDX

STLPDX

Lambert-St Louis

Thu 5/7

6:30 am-12:54 pm

1 stop8h 24m

Portland

Tue 5/12

5:05 pm-12:36 am

1 stop5h 31m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 23 results
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Best time to book a flight from St. Louis to Salem

Have a flexible travel schedule? Discover the best time to fly to Salem 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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Salem

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Salem. Price data was last updated on January 2, 2026.

Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Salem. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Salem (average of $162). Flying from St. Louis to Salem in March is currently the most expensive (average of $256). 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.

How much does it cost to fly round-trip from St. Louis to Salem?

Reviews of airlines servicing Salem

Get insights into the airlines that provide service to Salem. 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 Salem. Reviews last updated January 8, 2026.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from St. Louis to Salem have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
11,661 reviews
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Southwest
8.0
Very good
4,250 reviews
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,025 reviews
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,139 reviews
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.2
Good
11,095 reviews
Alaska Airlines
8.0
Very good
11,661 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Salem. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Salem?

    If you book a flight to Salem from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Salem per day from 7 different airlines.

  • How popular is this St. Louis to Salem flight route?

    Within the past month, 1 users have taken a look at flights from Lambert-St Louis to Salem.

  • How long is the flight from St. Louis to Salem?

    Airlines like Delta fly from St. Louis to Salem in about 6h 42m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 1702 mi.

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

    $76 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Alaska Airlines, with prices starting from $113 and $113, respectively.

  • What are the cheapest flights from St. Louis to Salem?

    While on average a flight from St. Louis to Salem is generally $243, our data shows the cheapest flight currently is $134. When looking at the most popular route, (Lambert-St Louis - Portland), you can expect to pay $177 for that flight.

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

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Salem (average of $162). Flying from St. Louis to Salem in March is currently the most expensive (average of $256). 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 7 airlines flying from St. Louis to Salem

Discover the top 7 airlines that operate flights from St. Louis to Salem. 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 2,558,603 searches. Data last updated January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$139Average$247FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$188Average$335FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$220Average$416FlexibilityNo cancel feeOn-time63%
DeltaCheapest$223Average$330FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$244Average$459FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$248Average$475FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$338Average$520FlexibilityNo cancel feeOn-time85%

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