$385+ Cheap flights from St. Louis (STL) to Peru
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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LIM
Jul 28 — Aug 41
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Peru 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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Cheapest flights from St. Louis to PeruExplore the most affordable flight options available from St. Louis to Peru. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 28, 2026.
Explore the most affordable flight options available from St. Louis to Peru. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 28, 2026.
This Orbitz deal was found by Cheapflights users on 6/24. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:05 pm
STL
- LIM
1 stop13h 05m
Air Canada
Sat 12/58:00 am
LIM
- STL
2 stops32h 26m
Air Canada
Deal found 6/24![Air Canada logo]()
$602
This Air Canada deal was found by Cheapflights users on 6/25. 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.
Mon 11/94:05 pm
STL
- LIM
2 stops17h 40m
Multiple Airlines
Sun 11/225:35 pm
LIM
- STL
2 stops46h 51m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$609
This Expedia deal was found by Cheapflights users on 6/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:05 pm
STL
- LIM
1 stop13h 05m
Air Canada
Thu 12/248:00 am
LIM
- STL
2 stops32h 26m
Air Canada
Deal found 6/24![Air Canada logo]()
$630
This FlightHub deal was found by Cheapflights users on 6/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:23 pm
STL
- LIM
1 stop11h 37m
LATAM Airlines
Thu 9/1712:05 pm
LIM
- STL
1 stop11h 31m
LATAM Airlines
Deal found 6/23![LATAM Airlines logo]()
$666
This FlightHub deal was found by Cheapflights users on 6/24. 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 12/111:51 am
STL
- LIM
1 stop16h 09m
LATAM Airlines
Sat 12/512:00 pm
LIM
- STL
1 stop12h 39m
LATAM Airlines
Deal found 6/24![LATAM Airlines logo]()
$698
This FlightHub deal was found by Cheapflights users on 6/25. 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 11/91:30 pm
STL
- LIM
2 stops15h 30m
LATAM Airlines
Sun 11/2212:00 pm
LIM
- STL
1 stop12h 39m
LATAM Airlines
Deal found 6/25![LATAM Airlines logo]()
$702
This Air Canada deal was found by Cheapflights users on 6/24. 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.
Wed 10/284:05 pm
STL
- CUZ
2 stops19h 15m
Air Canada
Sun 11/15:10 pm
CUZ
- STL
2 stops47h 16m
Air Canada
Deal found 6/24![Air Canada logo]()
$905
This LATAM Airlines deal was found by Cheapflights users on 6/25. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:00 am
STL
- AQP
2 stops24h 20m
LATAM Airlines
Thu 12/103:10 pm
AQP
- STL
2 stops20h 38m
LATAM Airlines
Deal found 6/25![LATAM Airlines logo]()
$949
This LATAM Airlines deal was found by Cheapflights users on 6/28. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:51 am
STL
- CUZ
2 stops14h 09m
LATAM Airlines
Tue 8/48:25 am
CUZ
- STL
2 stops14h 56m
LATAM Airlines
Deal found 6/28![LATAM Airlines logo]()
$1,164
This American Airlines deal was found by Cheapflights users on 6/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/172:13 pm
STL
- CUZ
2 stops17h 07m
American Airlines
Sat 9/2612:35 pm
CUZ
- STL
2 stops24h 48m
American Airlines
Deal found 6/23![American Airlines logo]()
$1,181
This FlightHub deal was found by Cheapflights users on 6/27. 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 7/276:00 am
STL
- CUZ
2 stops28h 00m
LATAM Airlines
Mon 8/310:10 pm
CUZ
- STL
2 stops25h 11m
LATAM Airlines
Deal found 6/27![LATAM Airlines logo]()
$1,184
This FlightHub deal was found by Cheapflights users on 6/27. 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.
Thu 9/176:45 pm
STL
- CUZ
2 stops18h 20m
LATAM Airlines
Sat 9/266:50 am
CUZ
- STL
2 stops16h 46m
LATAM Airlines
Deal found 6/27![LATAM Airlines logo]()
$1,202
Best flights from St. Louis to PeruDiscover carefully curated flight deals from St. Louis to Peru that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 28, 2026.
Discover carefully curated flight deals from St. Louis to Peru that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 28, 2026.
This FlightHub deal was found by Cheapflights users on 6/28. 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.
Sun 9/204:59 pm
STL
- LIM
1 stop12h 01m
LATAM Airlines
Mon 10/51:30 pm
LIM
- STL
2 stops21h 21m
LATAM Airlines
Deal found 6/28![LATAM Airlines logo]()
$760
This Air Canada deal was found by Cheapflights users on 6/27. 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.
Wed 12/24:05 pm
STL
- LIM
2 stops17h 40m
Air Canada
Fri 12/48:00 am
LIM
- STL
1 stop32h 26m
Air Canada
Deal found 6/27![Air Canada logo]()
$799
This Delta deal was found by Cheapflights users on 6/27. 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 9/197:05 am
STL
- LIM
2 stops21h 55m
Delta
Fri 9/2512:15 am
LIM
- STL
2 stops23h 01m
Delta
Deal found 6/27![Delta logo]()
$820
This United Airlines deal was found by Cheapflights users on 6/24. 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 8/139:30 am
STL
- LIM
2 stops37h 30m
United Airlines
Sun 8/2312:55 am
LIM
- STL
3 stops59h 07m
United Airlines
Deal found 6/24![United Airlines logo]()
$837
This American Airlines deal was found by Cheapflights users on 6/24. 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 7/1411:00 am
STL
- LIM
1 stop9h 30m
American Airlines
Tue 7/286:30 am
LIM
- STL
2 stops14h 25m
American Airlines
Deal found 6/24![American Airlines logo]()
$898
This LATAM Airlines deal was found by Cheapflights users on 6/23. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 am
STL
- LIM
2 stops12h 25m
LATAM Airlines
Fri 11/68:40 pm
LIM
- STL
2 stops22h 21m
LATAM Airlines
Deal found 6/23![LATAM Airlines logo]()
$829
This Delta deal was found by Cheapflights users on 6/27. 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 9/196:00 am
STL
- LIM
2 stops14h 20m
Delta
Wed 9/2312:05 pm
LIM
- STL
1 stop20h 55m
Delta
Deal found 6/27![Delta logo]()
$903
This Air Canada deal was found by Cheapflights users on 6/24. 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.
Wed 10/284:05 pm
STL
- CUZ
2 stops19h 15m
Air Canada
Sun 11/15:10 pm
CUZ
- STL
2 stops47h 16m
Air Canada
Deal found 6/24![Air Canada logo]()
$905
This Delta deal was found by Cheapflights users on 6/27. 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 9/196:00 am
STL
- LIM
2 stops14h 20m
Delta
Thu 9/2412:05 pm
LIM
- STL
1 stop20h 55m
Delta
Deal found 6/27![Delta logo]()
$903
This LATAM Airlines deal was found by Cheapflights users on 6/25. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:00 am
STL
- AQP
2 stops24h 20m
LATAM Airlines
Thu 12/103:10 pm
AQP
- STL
2 stops20h 38m
LATAM Airlines
Deal found 6/25![LATAM Airlines logo]()
$949
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:00 am
STL
- LIM
2 stops14h 20m
Delta
Mon 7/2712:05 am
LIM
- STL
2 stops17h 19m
Delta
Deal found 6/23![Delta logo]()
$920
This American Airlines deal was found by Cheapflights users on 6/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/172:13 pm
STL
- CUZ
2 stops17h 07m
American Airlines
Sat 9/2612:35 pm
CUZ
- STL
2 stops24h 48m
American Airlines
Deal found 6/23![American Airlines logo]()
$1,181
This Delta deal was found by Cheapflights users on 6/27. 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.
Sun 8/167:00 am
STL
- LIM
1 stop14h 55m
Delta
Sat 8/228:55 am
LIM
- STL
2 stops14h 36m
Delta
Deal found 6/27![Delta logo]()
$933
This FlightHub deal was found by Cheapflights users on 6/27. 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.
Thu 9/176:45 pm
STL
- CUZ
2 stops18h 20m
LATAM Airlines
Sat 9/266:50 am
CUZ
- STL
2 stops16h 46m
LATAM Airlines
Deal found 6/27![LATAM Airlines logo]()
$1,202
This FlightHub deal was found by Cheapflights users on 6/27. 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 8/36:00 am
STL
- CUZ
2 stops27h 50m
LATAM Airlines
Mon 8/1010:10 pm
CUZ
- STL
2 stops33h 58m
LATAM Airlines
Deal found 6/27![LATAM Airlines logo]()
$1,222
Last-minute flights from St. Louis to PeruDiscover last-minute flight deals from St. Louis to Peru. Data last updated June 28, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Peru. Data last updated June 28, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 6/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/115:42 pm
STL
- LIM
1 stop11h 18m
LATAM Airlines
Mon 7/2712:05 pm
LIM
- STL
1 stop11h 48m
LATAM Airlines
Deal found 6/23![LATAM Airlines logo]()
$918
This oojo deal was found by Cheapflights users on 6/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:00 am
STL
- LIM
1 stop15h 55m
LATAM Airlines
Wed 7/2912:05 pm
LIM
- STL
1 stop11h 48m
LATAM Airlines
Deal found 6/23![LATAM Airlines logo]()
$920
This American Airlines deal was found by Cheapflights users on 6/26. 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 7/145:18 am
STL
- LIM
1 stop15h 12m
American Airlines
Tue 7/2810:00 pm
LIM
- STL
1 stop12h 24m
American Airlines
Deal found 6/26![American Airlines logo]()
$893
This Justfly.com deal was found by Cheapflights users on 6/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:00 am
STL
- LIM
2 stops15h 05m
LATAM Airlines
Tue 7/2812:05 pm
LIM
- STL
1 stop11h 48m
LATAM Airlines
Deal found 6/27![LATAM Airlines logo]()
$977
This Delta deal was found by Cheapflights users on 6/27. 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.
Tue 7/146:00 am
STL
- LIM
1 stop15h 55m
Delta
Mon 7/2712:05 am
LIM
- STL
1 stop12h 12m
Delta
Deal found 6/27![Delta logo]()
$999
This Expedia deal was found by Cheapflights users on 6/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:00 am
STL
- LIM
2 stops14h 20m
LATAM Airlines
Sun 8/21:00 pm
LIM
- STL
2 stops34h 58m
LATAM Airlines
Deal found 6/25![LATAM Airlines logo]()
$972
This FlightHub deal was found by Cheapflights users on 6/27. 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 7/276:00 am
STL
- CUZ
2 stops28h 00m
LATAM Airlines
Mon 8/310:10 pm
CUZ
- STL
2 stops25h 11m
LATAM Airlines
Deal found 6/27![LATAM Airlines logo]()
$1,184
This KAYAK deal was found by Cheapflights users on 6/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/279:25 am
STL
- CUZ
3 stops21h 00m
GOL
Mon 8/310:30 pm
CUZ
- STL
2 stops24h 24m
GOL
Deal found 6/27![GOL logo]()
$1,315
This Mytrip deal was found by Cheapflights users on 6/27. 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 7/278:55 am
STL
- CUZ
3 stops26h 25m
Multiple Airlines
Mon 8/35:10 pm
CUZ
- STL
3 stops25h 32m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,737
This LATAM Airlines deal was found by Cheapflights users on 6/28. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:51 am
STL
- CUZ
2 stops14h 09m
LATAM Airlines
Tue 8/48:25 am
CUZ
- STL
2 stops14h 56m
LATAM Airlines
Deal found 6/28![LATAM Airlines logo]()
$1,164
This Mytrip deal was found by Cheapflights users on 6/28. 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.
Tue 7/2812:10 pm
STL
- CUZ
2 stops23h 10m
Multiple Airlines
Tue 8/48:05 am
CUZ
- STL
3 stops29h 59m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,465
One-way flights from St. Louis to PeruSearch for one-way flight options from St. Louis to Peru. Find affordable one-way fares based on user searches. Data last updated June 28, 2026.
Search for one-way flight options from St. Louis to Peru. Find affordable one-way fares based on user searches. Data last updated June 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 11/1510:35 am
STL
- LIM
2 stops52h 05m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/96:34 pm
STL
- LIM
3 stops34h 27m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$457
This Delta deal was found by Cheapflights users on 6/26. 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.
Sun 11/156:59 pm
STL
- LIM
1 stop25h 21m
Delta
Deal found 6/26![Delta logo]()
$485
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Thu 7/95:18 am
STL
- LIM
1 stop17h 07m
American Airlines
Deal found 6/25![American Airlines logo]()
$511
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Fri 10/96:08 pm
STL
- CUZ
2 stops21h 42m
American Airlines
Deal found 6/25![American Airlines logo]()
$641
This BusinessClass deal was found by Cheapflights users on 6/24. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am
STL
- CUZ
3 stops17h 25m
LATAM Airlines
Deal found 6/24![LATAM Airlines logo]()
$741
This Justfly.com deal was found by Cheapflights users on 6/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:00 am
STL
- LIM
2 stops25h 10m
LATAM Airlines
Deal found 6/26![LATAM Airlines logo]()
$1,021
This AranGrant deal was found by Cheapflights users on 6/26. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:21 am
STL
- LIM
1 stop15h 09m
GOL
Deal found 6/26![GOL logo]()
$1,362
Find flight deals from St. Louis to Peru
Keep the following information in mind while searching for St. Louis to Peru flight deals. Data was last updated June 28, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $602 (Orbitz) |
One-way from | $385 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $939 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Peru 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 June 28, 2026.
Use the filters below to find and compare flights from St. Louis to Peru that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisLima
STL - LIM
STLLIM
Lambert-St Louis
Sun 9/20
4:59 pm-5:00 am
1 stop12h 01m
Lima J Chavez Intl
Mon 10/5
1:30 pm-10:51 am
2 stops21h 21m
$760
St. LouisLima
STL - LIM
STLLIM
Lambert-St Louis
Wed 12/2
4:05 pm-10:45 am
2 stops17h 40m
Lima J Chavez Intl
Fri 12/4
8:00 am-3:26 pm
1 stop32h 26m
$799
St. LouisLima
STL - LIM
STLLIM
Lambert-St Louis
Sat 9/19
7:05 am-5:00 am
2 stops21h 55m
Lima J Chavez Intl
Fri 9/25
12:15 am-11:16 pm
2 stops23h 01m
$820
St. LouisLima
STL - LIM
STLLIM
Lambert-St Louis
Mon 11/2
6:00 am-7:25 pm
2 stops12h 25m
Lima J Chavez Intl
Fri 11/6
8:40 pm-6:01 pm
2 stops22h 21m
$829
St. LouisLima
STL - LIM
STLLIM
Lambert-St Louis
Thu 8/13
9:30 am-11:00 pm
2 stops37h 30m
Lima J Chavez Intl
Sun 8/23
12:55 am-12:02 pm
3 stops59h 07m
$837
Quickest round-trip
St. LouisLima
STL - LIM
STLLIM
Lambert-St Louis
Tue 7/14
11:00 am-8:30 pm
1 stop9h 30m
Lima J Chavez Intl
Tue 7/28
6:30 am-8:55 pm
2 stops14h 25m
$898
St. LouisLima
STL - LIM
STLLIM
Lambert-St Louis
Sat 9/19
6:00 am-8:20 pm
2 stops14h 20m
Lima J Chavez Intl
Wed 9/23
12:05 pm-9:00 am
1 stop20h 55m
$903
St. LouisLima
STL - LIM
STLLIM
Lambert-St Louis
Sat 9/19
6:00 am-8:20 pm
2 stops14h 20m
Lima J Chavez Intl
Thu 9/24
12:05 pm-9:00 am
1 stop20h 55m
$903
St. LouisCusco
STL - CUZ
STLCUZ
Lambert-St Louis
Wed 10/28
4:05 pm-11:20 am
2 stops19h 15m
Cusco Velazco Astete
Sun 11/1
5:10 pm-3:26 pm
2 stops47h 16m
$905
St. LouisLima
STL - LIM
STLLIM
Lambert-St Louis
Tue 7/14
6:00 am-8:20 pm
2 stops14h 20m
Lima J Chavez Intl
Mon 7/27
12:05 am-5:24 pm
2 stops17h 19m
$920
Showing 1-10 of 21 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Peru
Have a flexible travel schedule? Discover the best time to fly to Peru from St. Louis with our price prediction graph.
STL-LIM
STL-CUZ
STL-AQP
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 Peru
STL-PE0
STL-LIM
STL-CUZ
STL-AQP
What is the cheapest month to book a flight from St. Louis to Peru?
Currently, February is the cheapest month in which you can book a flight from St. Louis to Peru (average of $384). Flying from St. Louis to Peru in July is currently the most expensive (average of $790). 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 far ahead should I book a flight from St. Louis to Peru?
The best time to book flights from St. Louis to Peru is 48 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.
Reviews of airlines servicing Peru
Get insights into the airlines that provide service to Peru. 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 Peru. Reviews last updated June 28, 2026.
Read through reviews of airlines operating flights from St. Louis to Peru, such as Delta,LATAM Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Crew
8.5
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Peru. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Peru
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Peru by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Peru by cabin class
Find flights from St. Louis to Peru, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Peru flights
Browse other St. Louis and Peru flight options. Last updated on June 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from St. Louis to Peru
Discover the top 3 airlines that operate flights from St. Louis to Peru. 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 June 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$572 | Average$835 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$650 | Average$1,009 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$685 | Average$952 | FlexibilityNo cancel fee | On-time71% |