Cheap flights from St. Louis to Rio de Janeiro from $1,016
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Rio de Janeiro departing on 7/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from St. Louis to Rio de Janeiro
Cheap round-trip flights
Cheap last minute flights
United Airlines flights from St. Louis to Rio de Janeiro–Galeão Intl Airport
Our best United Airlines deals on St. Louis to Rio de Janeiro–Galeão Intl Airport flight tickets
Delta flights from St. Louis to Rio de Janeiro–Galeão Intl Airport
Our best Delta deals on St. Louis to Rio de Janeiro–Galeão Intl Airport flight tickets
See travel insights to Rio de Janeiro from
How to get the cheapest flight ticket from St. Louis to Rio de Janeiro–Galeão Intl Airport
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 day to depart on your flight to Rio de Janeiro–Galeão Intl Airport?
Our data shows that Thursday is the least expensive day to fly to Rio de Janeiro–Galeão Intl Airport. Tickets to fly out on this day can be as low as $847. The most expensive day to fly to Rio de Janeiro–Galeão Intl Airport is Friday, with ticket prices averaging around $1,569.
What is the cheapest time of day to depart on your flight to Rio de Janeiro–Galeão Intl Airport?
Flying to Rio de Janeiro–Galeão Intl Airport from St. Louis in the morning is the least expensive time of day to depart. momondo users have found prices as low as $872 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around $1,050. Of course, these prices can vary depending on the time of year and what airport you fly to.
When to book flights from St. Louis to Rio de Janeiro–Galeão Intl Airport
Cheap St. Louis to Rio de Janeiro–Galeão Intl Airport (STL to GIG) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Rio de Janeiro–Galeão Intl Airport
How far is Lambert-St Louis to Rio de Janeiro–Galeão Intl by plane?
A flight from Lambert-St Louis to Rio de Janeiro–Galeão Intl will travel around 5216.2 mi. In terms of flight time, this usually takes a little over 12h 57m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Rio de Janeiro–Galeão Intl Airport?
Prices for flights from Lambert-St Louis Airport to Rio de Janeiro–Galeão Intl Airport refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Rio de Janeiro–Galeão Intl Airport?
There are 2 operators available for flights from Lambert-St Louis Airport to Rio de Janeiro–Galeão Intl Airport as of June 2025.
How old do you have to be to fly from Lambert-St Louis Airport to Rio de Janeiro–Galeão Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Rio de Janeiro–Galeão Intl Airport.
What documentation or ID do you need to fly to Rio de Janeiro–Galeão Intl Airport?
The necessary travel and health documents for your Rio de Janeiro–Galeão Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Rio de Janeiro–Galeão Intl Airport?
Based on momondo bookings for flights between St. Louis and Rio de Janeiro–Galeão Intl Airport, the leading airline is American Airlines, making up 62% of the total bookings. Other popular airlines include Delta with 38%.
Best airlines flying from St. Louis to Rio de Janeiro–Galeão Intl Airport
Compare and see reviews for airlines that fly from St. Louis to Rio de Janeiro–Galeão Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $697 | Free Cancellation | Rating 8.0 7,964 reviews | |||
| PriceFrom $717 | 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 Rio de Janeiro?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Rio de Janeiro. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from St. Louis to Rio de Janeiro with flexible booking policies on momondo?
momondo does allow users to show only those flights to Rio de Janeiro from St. Louis which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from St. Louis to Rio de Janeiro?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Rio de Janeiro from St. Louis.
I’m not ready to book a flight from St. Louis to Rio de Janeiro right now. Can momondo alert me if prices change?
Price alerts on flights to Rio de Janeiro 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.