$348+ Cheap flights from St. Louis (STL) to Barcelona
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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BCN
Jun 23 — Jun 301
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Barcelona with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Barcelona
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Best
Last-minute
One-way
Cheapest flights from St. Louis to BarcelonaExplore the most affordable flight options available from St. Louis to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 24, 2026.
Explore the most affordable flight options available from St. Louis to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 24, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:35 pm
STL
- BCN
1 stop14h 00m
Multiple Airlines
Wed 10/2810:40 am
BCN
- STL
1 stop15h 06m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$758
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/11:20 pm
STL
- BCN
1 stop12h 30m
Finnair
Wed 11/1810:40 am
BCN
- STL
1 stop15h 50m
Finnair
Deal found 5/20![Finnair logo]()
$760
This Priceline deal was found by Cheapflights users on 5/21. 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.
Sun 10/49:40 pm
STL
- BCN
1 stop17h 50m
Iberia
Thu 10/156:30 pm
BCN
- STL
1 stop21h 34m
Iberia
Deal found 5/21![Iberia logo]()
$765
This British Airways deal was found by Cheapflights users on 5/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:40 pm
STL
- BCN
1 stop14h 55m
British Airways
Thu 10/157:30 pm
BCN
- STL
1 stop31h 00m
British Airways
Deal found 5/21![British Airways logo]()
$772
This Priceline deal was found by Cheapflights users on 5/21. 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.
Mon 10/58:05 pm
STL
- BCN
2 stops14h 30m
Iberia
Fri 10/167:40 am
BCN
- STL
1 stop18h 50m
Iberia
Deal found 5/21![Iberia logo]()
$775
This American Airlines deal was found by Cheapflights users on 5/21. 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.
Mon 10/57:38 am
STL
- BCN
1 stop19h 57m
American Airlines
Fri 10/167:40 am
BCN
- STL
1 stop18h 50m
American Airlines
Deal found 5/21![American Airlines logo]()
$778
This FlightHub deal was found by Cheapflights users on 5/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:35 pm
STL
- BCN
1 stop18h 05m
British Airways
Wed 10/2812:00 pm
BCN
- STL
1 stop17h 41m
British Airways
Deal found 5/18![British Airways logo]()
$781
This Air Canada deal was found by Cheapflights users on 5/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:10 pm
STL
- BCN
1 stop12h 50m
Air Canada
Fri 10/1612:15 pm
BCN
- STL
2 stops32h 56m
Air Canada
Deal found 5/21![Air Canada logo]()
$782
This Air Canada deal was found by Cheapflights users on 5/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:00 am
STL
- BCN
2 stops17h 00m
Air Canada
Tue 10/1312:15 pm
BCN
- STL
2 stops30h 58m
Air Canada
Deal found 5/21![Air Canada logo]()
$786
This British Airways deal was found by Cheapflights users on 5/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:35 pm
STL
- BCN
1 stop28h 50m
British Airways
Thu 10/159:25 pm
BCN
- STL
1 stop29h 05m
British Airways
Deal found 5/21![British Airways logo]()
$787
This FlightHub deal was found by Cheapflights users on 5/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:00 am
STL
- BCN
1 stop18h 50m
British Airways
Wed 11/1810:40 am
BCN
- STL
1 stop15h 50m
British Airways
Deal found 5/20![British Airways logo]()
$788
Best flights from St. Louis to BarcelonaDiscover carefully curated flight deals from St. Louis to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 24, 2026.
Discover carefully curated flight deals from St. Louis to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 24, 2026.
This British Airways deal was found by Cheapflights users on 5/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:40 pm
STL
- BCN
1 stop14h 55m
British Airways
Mon 10/199:20 pm
BCN
- STL
1 stop29h 10m
British Airways
Deal found 5/21![British Airways logo]()
$772
This United Airlines deal was found by Cheapflights users on 5/20. 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 7/297:20 am
STL
- BCN
1 stop22h 55m
United Airlines
Fri 8/141:15 pm
BCN
- STL
1 stop31h 47m
United Airlines
Deal found 5/20![United Airlines logo]()
$875
This Delta deal was found by Cheapflights users on 5/20. 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.
Thu 8/2711:00 am
STL
- BCN
2 stops17h 15m
Delta
Sat 9/56:20 am
BCN
- STL
2 stops23h 41m
Delta
Deal found 5/20![Delta logo]()
$1,018
This Condor deal was found by Cheapflights users on 5/20. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:15 am
STL
- BCN
2 stops28h 55m
Multiple Airlines
Tue 6/168:00 am
BCN
- STL
2 stops19h 30m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,295
This British Airways deal was found by Cheapflights users on 5/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:35 pm
STL
- BCN
1 stop28h 50m
British Airways
Thu 10/159:25 pm
BCN
- STL
1 stop29h 05m
British Airways
Deal found 5/21![British Airways logo]()
$787
This United Airlines deal was found by Cheapflights users on 5/23. 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.
Tue 9/17:00 am
STL
- BCN
3 stops18h 00m
United Airlines
Sat 12/121:35 pm
BCN
- STL
2 stops31h 43m
United Airlines
Deal found 5/23![United Airlines logo]()
$922
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Thu 10/82:40 pm
STL
- BCN
1 stop11h 40m
United Airlines
Sat 10/171:15 pm
BCN
- STL
1 stop13h 45m
United Airlines
Deal found 5/21![United Airlines logo]()
$1,091
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Tue 7/216:00 am
STL
- BCN
1 stop24h 15m
United Airlines
Mon 8/31:15 pm
BCN
- STL
1 stop31h 47m
United Airlines
Deal found 5/18![United Airlines logo]()
$1,131
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Thu 7/28:00 am
STL
- BCN
2 stops18h 20m
United Airlines
Thu 7/91:15 pm
BCN
- STL
2 stops29h 56m
United Airlines
Deal found 5/18![United Airlines logo]()
$1,138
Last-minute flights from St. Louis to BarcelonaDiscover last-minute flight deals from St. Louis to Barcelona. Data last updated May 24, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Barcelona. Data last updated May 24, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:00 pm
STL
- BCN
1 stop10h 55m
Finnair
Tue 6/210:30 am
BCN
- STL
1 stop20h 44m
Finnair
Deal found 5/19![Finnair logo]()
$1,295
This Gotogate deal was found by Cheapflights users on 5/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:05 pm
STL
- BCN
1 stop11h 55m
Air Canada
Tue 6/210:15 am
BCN
- STL
2 stops17h 10m
Air Canada
Deal found 5/19![Air Canada logo]()
$1,297
This Cheapflightsfares deal was found by Cheapflights users on 5/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:13 pm
STL
- BCN
2 stops16h 52m
Lufthansa
Tue 6/26:40 am
BCN
- STL
2 stops19h 33m
Lufthansa
Deal found 5/19![Lufthansa logo]()
$1,308
This Cheapflightsfares deal was found by Cheapflights users on 5/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:13 pm
STL
- BCN
2 stops16h 27m
Lufthansa
Wed 6/106:40 am
BCN
- STL
1 stop13h 45m
Lufthansa
Deal found 5/21![Lufthansa logo]()
$1,294
This Mytrip deal was found by Cheapflights users on 5/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/12:15 pm
STL
- BCN
2 stops28h 00m
Multiple Airlines
Fri 6/55:55 am
BCN
- STL
3 stops37h 11m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,263
This Mytrip deal was found by Cheapflights users on 5/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:40 am
STL
- BCN
2 stops16h 20m
Air Canada
Fri 6/129:40 am
BCN
- STL
2 stops17h 45m
Air Canada
Deal found 5/23![Air Canada logo]()
$1,147
This Mytrip deal was found by Cheapflights users on 5/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:00 pm
STL
- BCN
3 stops35h 05m
Multiple Airlines
Sun 6/1411:20 pm
BCN
- STL
3 stops43h 46m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,156
This Mytrip deal was found by Cheapflights users on 5/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:40 am
STL
- BCN
2 stops33h 30m
Multiple Airlines
Fri 6/125:50 am
BCN
- STL
3 stops37h 16m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$1,180
This Lufthansa deal was found by Cheapflights users on 5/21. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/213:30 pm
STL
- BCN
1 stop17h 05m
Lufthansa
Mon 7/65:10 pm
BCN
- STL
1 stop27h 15m
Lufthansa
Deal found 5/21![Lufthansa logo]()
$1,309
One-way flights from St. Louis to BarcelonaSearch for one-way flight options from St. Louis to Barcelona. Find affordable one-way fares based on user searches. Data last updated May 24, 2026.
Search for one-way flight options from St. Louis to Barcelona. Find affordable one-way fares based on user searches. Data last updated May 24, 2026.
This oojo deal was found by Cheapflights users on 5/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:38 am
STL
- BCN
2 stops24h 02m
British Airways
Deal found 5/20![British Airways logo]()
$348
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:35 pm
STL
- BCN
1 stop14h 05m
British Airways
Deal found 5/18![British Airways logo]()
$351
This oojo deal was found by Cheapflights users on 5/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/258:05 pm
STL
- BCN
2 stops17h 00m
British Airways
Deal found 5/18![British Airways logo]()
$352
This oojo deal was found by Cheapflights users on 5/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:05 pm
STL
- BCN
2 stops32h 35m
British Airways
Deal found 5/22![British Airways logo]()
$357
This American Airlines deal was found by Cheapflights users on 5/20. 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.
Sun 11/152:17 pm
STL
- BCN
2 stops14h 08m
American Airlines
Deal found 5/20![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 5/18. 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.
Tue 10/1310:54 am
STL
- BCN
2 stops12h 51m
American Airlines
Deal found 5/18![American Airlines logo]()
$362
This Iberia deal was found by Cheapflights users on 5/22. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:35 am
STL
- BCN
2 stops18h 10m
Iberia
Deal found 5/22![Iberia logo]()
$372
Find flight deals from St. Louis to Barcelona
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Barcelona (S37). 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 24, 2026.
Round-trip from | $760 (Cheapflightsfares) |
|---|---|
One-way from | $348 (oojo) |
Popular in | June |
Cheapest in | January |
Average price | $898 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Barcelona 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 May 24, 2026.
Use the filters below to find and compare flights from St. Louis to Barcelona that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Sun 10/4
9:40 pm-7:35 pm
1 stop14h 55m
Barcelona-El Prat
Mon 10/19
9:20 pm-7:30 pm
1 stop29h 10m
$772
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Wed 10/7
9:35 pm-9:25 am
1 stop28h 50m
Barcelona-El Prat
Thu 10/15
9:25 pm-7:30 pm
1 stop29h 05m
$787
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Wed 7/29
7:20 am-1:15 pm
1 stop22h 55m
Barcelona-El Prat
Fri 8/14
1:15 pm-2:02 pm
1 stop31h 47m
$875
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Tue 9/1
7:00 am-8:00 am
3 stops18h 00m
Barcelona-El Prat
Sat 12/12
1:35 pm-2:18 pm
2 stops31h 43m
$922
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Thu 8/27
11:00 am-11:15 am
2 stops17h 15m
Barcelona-El Prat
Sat 9/5
6:20 am-11:01 pm
2 stops23h 41m
$1,018
Quickest round-trip
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Thu 10/8
2:40 pm-9:20 am
1 stop11h 40m
Barcelona-El Prat
Sat 10/17
1:15 pm-8:00 pm
1 stop13h 45m
$1,091
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Tue 7/21
6:00 am-1:15 pm
1 stop24h 15m
Barcelona-El Prat
Mon 8/3
1:15 pm-2:02 pm
1 stop31h 47m
$1,131
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Thu 7/2
8:00 am-9:20 am
2 stops18h 20m
Barcelona-El Prat
Thu 7/9
1:15 pm-12:11 pm
2 stops29h 56m
$1,138
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Wed 6/10
10:15 am-10:10 pm
2 stops28h 55m
Barcelona-El Prat
Tue 6/16
8:00 am-8:30 pm
2 stops19h 30m
$1,295
Cheapest one-way
St. LouisBarcelona
STL - BCN
STLBCN
Lambert-St Louis
Fri 8/14
3:30 pm-1:05 pm
1 stop14h 35m
$419
Showing 1-10 of 17 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Barcelona
Have a flexible travel schedule? Discover the best time to fly to Barcelona from St. Louis with our price prediction graph.
STL-S37
STL-BCN
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 Barcelona
STL-S37
STL-BCN
What is the cheapest month to book a flight from St. Louis to Barcelona?
Currently, December is the cheapest month in which you can book a flight from St. Louis to Barcelona (average of $414). Flying from St. Louis to Barcelona in June is currently the most expensive (average of $927). 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 Barcelona?
How far ahead should I book a flight from St. Louis to Barcelona?
To ensure you get the cheapest price possible for a flight from St. Louis to Barcelona, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Barcelona
Get insights into the airlines that provide service to Barcelona. 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 Barcelona. Reviews last updated May 24, 2026.
See what other customers who have flown with United Airlines,American Airlines, andAir Canada from St. Louis to Barcelona have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
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Top 7 airlines flying from St. Louis to Barcelona
Discover the top 7 airlines that operate flights from St. Louis to Barcelona. 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 May 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$510 | Average$985 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$540 | Average$873 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$552 | Average$745 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$567 | Average$948 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$576 | Average$1,001 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$607 | Average$935 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$631 | Average$732 | FlexibilityNo cancel fee | On-time77% |