Cheap flights from St. Louis to Peru from $338
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Peru departing on 7/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from St. Louis to Peru
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Peru?
In general, September is the cheapest month to fly from St. Louis to Peru. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $700. If you’re not able to fly to Peru in September, then February is your next best option. Flight prices from St. Louis to Peru during February average around $746.
What is the cheapest day to depart on your flight to Peru?
The cheapest day to depart from St. Louis to Peru is on a Wednesday when prices can be found for as low as $741. On the other hand, Friday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $967.
What is the cheapest time of day to depart on your flight to Peru?
The cheapest time of day to fly to Peru is in the morning when flights can be purchased for as low as $785. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $831 on average. Flights to Peru from St. Louis at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Peru?
You are more likely to see cheaper flights to Peru from St. Louis when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Peru for around $795 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Peru from St. Louis for as low as $676 on momondo.
What is the cheapest airline that flies from Lambert-St Louis to Peru?
Delta, United Airlines, and LATAM Airlines are the most popular carriers operating from Lambert-St Louis to Peru
What airlines fly to Peru?
LATAM Airlines, Delta and American Airlines are the top three most popular airlines that fly to Peru from St. Louis according to our data. LATAM Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Peru. Keep in mind that there are 4 different airlines that fly to Peru on a routine basis, so you have a few additional options to choose from.
Cheap St. Louis to Peru flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Peru
When did momondo last update prices for flights from Lambert-St Louis Airport to Peru?
Prices for flights from Lambert-St Louis Airport to Peru are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Peru?
The number of operators available for flights from Lambert-St Louis Airport to Peru is 4 as of June 2025.
How old do you have to be to fly from Lambert-St Louis Airport to Peru?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Peru.
What documentation or ID do you need to fly to Peru?
The travel and health documents you'll need for your trip to Peru may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Peru. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from St. Louis to Peru
Compare and see reviews for airlines that fly from St. Louis to Peru with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $633 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $633 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $667 | Free Cancellation | Rating 7.5 1,785 reviews | |||
| PriceFrom $668 | Free Cancellation | Rating 7.2 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Peru?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Peru. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from St. Louis to Peru with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for St. Louis to Peru flights to just show those with flexible booking policies.
How can momondo help me find flights from St. Louis to Peru?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Peru.
I’m not ready to book a flight from St. Louis to Peru right now. Can momondo alert me if prices change?
Price alerts on flights to Peru from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.