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Salou

$301+ Cheap flights from St. Louis (STL) to Salou, Spain

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BCN
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Salou are usually found in February or November, booked 85 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from St. Louis to Salou

Keep the following information in mind while searching for St. Louis to Salou flight deals. Data was last updated August 14, 2025.

Round-trip from

$411
(United Airlines)

One-way from

$301
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$766
From Lambert-St Louis to Salou
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One-way flight from Lambert-St Louis to Salou
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Highest demand for flights based on searches. 24% potential increase in price ($302 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from St. Louis to Salou

Cheapest flights from St. Louis to Salou
Explore the most affordable flight options available from St. Louis to Salou. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1210:00 amSTL - BCN
1 stop20h 05mUnited Airlines
Wed 11/191:35 pmBCN - STL
2 stops31h 50mUnited Airlines
Deal found 8/13$411
This Priceline deal was found by Cheapflights users on 8/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:30 amSTL - BCN
2 stops20h 05mAir Canada
Wed 11/191:35 pmBCN - STL
2 stops31h 50mAir Canada
Deal found 8/13$436
This Gurufare deal was found by Cheapflights users on 8/13. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:49 amSTL - BCN
1 stop14h 11mLufthansa
Wed 11/196:50 amBCN - STL
1 stop14h 05mLufthansa
Deal found 8/13$464
This United deal was found by Cheapflights users on 8/14. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:30 amSTL - BCN
1 stop23h 35mMultiple Airlines
Sun 11/161:35 pmBCN - STL
2 stops32h 54mMultiple Airlines
Deal found 8/14$468
This United deal was found by Cheapflights users on 8/14. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:30 amSTL - BCN
1 stop23h 35mMultiple Airlines
Sat 11/151:35 pmBCN - STL
2 stops32h 54mMultiple Airlines
Deal found 8/14$488
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:20 amSTL - BCN
2 stops17h 40mUnited Airlines
Sat 11/1511:00 amBCN - STL
2 stops15h 39mUnited Airlines
Deal found 8/14$513
This eDestinos deal was found by Cheapflights users on 8/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/134:34 pmSTL - BCN
1 stop10h 56mIberia
Thu 10/2312:20 pmBCN - STL
1 stop15h 31mIberia
Deal found 8/14$514
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:30 pmSTL - BCN
1 stop11h 20mAir Canada
Fri 10/1012:10 pmBCN - STL
2 stops33h 17mAir Canada
Deal found 8/14$555

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Salou 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 August 14, 2025.
Use the filters below to find and compare flights from St. Louis to Salou that are best for you.

Fly from

St. Louis

Fly to

Salou

Route

Depart

Return

Price

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 11/12

10:00 am-1:05 pm

1 stop20h 05m

Barcelona-El Prat

Wed 11/19

1:35 pm-3:46 pm

2 stops33h 11m

$411

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 11/12

6:30 am-9:35 am

2 stops20h 05m

Barcelona-El Prat

Wed 11/19

1:35 pm-2:25 pm

2 stops31h 50m

$436

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 11/12

11:49 am-9:00 am

1 stop14h 11m

Barcelona-El Prat

Wed 11/19

6:50 am-1:55 pm

1 stop14h 05m

$464

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 11/12

6:30 am-1:05 pm

1 stop23h 35m

Barcelona-El Prat

Sun 11/16

1:35 pm-3:29 pm

2 stops32h 54m

$468

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 11/12

10:00 am-1:05 pm

1 stop20h 05m

Barcelona-El Prat

Sun 11/16

6:50 am-1:55 pm

1 stop14h 05m

$483

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 11/12

11:49 am-9:00 am

1 stop14h 11m

Barcelona-El Prat

Wed 11/19

6:50 am-1:55 pm

1 stop14h 05m

$483

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 11/12

6:30 am-1:05 pm

1 stop23h 35m

Barcelona-El Prat

Sat 11/15

1:35 pm-3:29 pm

2 stops32h 54m

$488

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Wed 11/12

8:20 am-9:00 am

2 stops17h 40m

Barcelona-El Prat

Sat 11/15

11:00 am-7:39 pm

2 stops15h 39m

$513

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Mon 10/13

4:34 pm-10:30 am

1 stop10h 56m

Barcelona-El Prat

Thu 10/23

12:20 pm-8:51 pm

1 stop15h 31m

$514

St. LouisBarcelona

STL - BCN

STLBCN

Lambert-St Louis

Fri 11/7

11:02 am-11:45 pm

3 stops53h 43m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 15 results
1
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Best time to book a flight from St. Louis to Salou

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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Salou. Price data was last updated on August 8, 2025.

The best time to book flights from St. Louis to Salou is 85 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.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Salou (average of $523). Flying from St. Louis to Salou in June is currently the most expensive (average of $1,057). 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.

What is the cheapest time of day to fly from STL to S9L?

Find hourly flight availability from St. Louis to Salou. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

When flying from St. Louis to Salou, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Salou

Get insights into the airlines that provide service to Salou. 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 Salou. Reviews last updated August 14, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Air Canada from St. Louis to Salou to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,916 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,949 reviews
United Airlines
7.4
Good
8,916 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Iberia
7.0
Good
2,878 reviews
United Airlines
7.4
Good
8,916 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,266 reviews
United Airlines
7.4
Good
8,916 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Salou. 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 Salou?

    If you book a flight to Salou 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 Salou per day from 8 different airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Salou 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 Salou?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Salou (average of $523). Flying from St. Louis to Salou in June is currently the most expensive (average of $1,057). 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

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Alternative routes for St. Louis to Salou

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Barcelona-El Prat flights
St. Louis to Barcelona-El Prat flights
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Top 8 airlines flying from St. Louis to Salou

Discover the top 8 airlines that operate flights from St. Louis to Salou. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$573Average$1,033FlexibilityNo cancel feeOn-time69%
KLMCheapest$590Average$751FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$602Average$933FlexibilityNo cancel feeOn-time70%
DeltaCheapest$602Average$1,040FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$614Average$1,085FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$629Average$1,242FlexibilityNo cancel feeOn-time67%
IberiaCheapest$631Average$1,066FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$648Average$1,072FlexibilityNo cancel feeOn-time71%

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