Rio de Janeiro to St Louis flights
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- Lowest observed
- €409, departing 7 Nov 2026 (Last checked: 11 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 70Check live prices for this route
- Airlines seen
- Air Canada, Air Transat, Avianca, Copa Airlines, United Airlines
- Typical journey time
- 21h 26m
Your next trip, last seen at €409
Lowest observedAvianca · 2 stops · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
About this route
Explore the fares we observed from Rio de Janeiro to St Louis. Prices move often, so pick your dates to see the latest options.
- Route distance
- 8,414 km
- Typical journey time
- 21h 26m
- Airlines seen
- Air Canada, Air Transat, Avianca, Copa Airlines, United Airlines
- Seen on fares with a connection
- Air Canada, United Airlines, Copa Airlines, Avianca, Air Transat
- Alternative airports
- RRJ, SDU, SUS
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
Airport to city: straight-line distance
- Santos Dumont Airport (SDU) → Rio de Janeiro, city gazetteer reference point (-22.9068, -43.1729): ≈ 1 km.
- Rio de Janeiro Galeão – Tom Jobim International Airport (GIG) → Rio de Janeiro, city gazetteer reference point (-22.9068, -43.1729): ≈ 13 km.
- St. Louis Lambert International Airport (STL) → St Louis, city gazetteer reference point (38.6270, -90.1994): ≈ 20 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Rio de Janeiro to St Louis: November 2026, from €409 (checked 11 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €447 | 11 |
| November 2026 | €409 | 24 |
| December 2026 | €447 | 15 |
| January 2027 | €445 | 13 |
| February 2027 | €443 | 7 |
Lowest fare by day of the week
Cheapest day of the week from Rio de Janeiro to St Louis: Saturday, from €409 (checked 11 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €444 | 5 |
| Tuesday | €452 | 7 |
| Wednesday | €443 | 14 |
| Thursday | €444 | 12 |
| Friday | €428 | 14 |
| Saturday | €409 | 7 |
| Sunday | €443 | 11 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest one-way fare we saw per airline
Cheapest airline from Rio de Janeiro to St Louis: Avianca, from €409 (checked 11 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Avianca | €409Nov 7, 2026 | 5 |
| Air Canada | €443Nov 4, 2026 | 31 |
| Copa Airlines | €444Nov 9, 2026 | 10 |
| United Airlines | €697Jan 14, 2027 | 19 |
| Air Transat | €728Dec 17, 2026 | 5 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Rio de Janeiro to St Louis?
The lowest fare we have observed is €409, found on 11 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Rio de Janeiro to St Louis?
Cheapest month from Rio de Janeiro to St Louis: November 2026, from €409 (checked 11 Oct 2026).
Are there direct flights from Rio de Janeiro to St Louis?
Our data holds no non-stop flight from Rio de Janeiro to St Louis. The fares on this page include at least one stop.
Which airlines fly from Rio de Janeiro to St Louis?
These are the carriers we have seen on the route: Air Canada, Air Transat, Avianca, Copa Airlines, United Airlines.
How long does the flight from Rio de Janeiro to St Louis take?
The average journey time across the 70 fares we observed is 23h 13m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Rio de Janeiro to St Louis fares were non-stop?
None of the 70 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
Which day of the week is cheapest from Rio de Janeiro to St Louis?
Cheapest day of the week from Rio de Janeiro to St Louis: Saturday, from €409 (checked 11 Oct 2026).
Which airline has the lowest fare from Rio de Janeiro to St Louis?
Cheapest airline from Rio de Janeiro to St Louis: Avianca, from €409 (checked 11 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 11 Oct 2026