Your next trip, last seen at €153
Lowest observedAllegiant Air · 1 stop · 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.
One-way fare
- Lowest observed
- €153, departing 10 Jan 2027 (Last checked: 24 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Alaska Airlines, Allegiant Air, Frontier Airlines
- Typical journey time
- 6h 55m
About this route
Explore the fares we observed from Eugene to St Louis. Prices move often, so pick your dates to see the latest options.
- Route distance
- 2,791 km
- Typical journey time
- 6h 55m
- Seen on fares with a connection
- Alaska Airlines, Allegiant Air, Frontier Airlines
- Alternative airports
- 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
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- Eugene Airport (EUG) → Eugene, city gazetteer reference point (44.0521, -123.0868): ≈ 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 one-way fare we saw per airline
Cheapest airline from Eugene to St Louis: Allegiant Air, from €153 (checked 24 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Allegiant Air | €153Jan 10, 2027 | 10 |
| Alaska Airlines | €169Nov 9, 2026 | 71 |
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 Eugene to St Louis?
The lowest fare Routavio has observed is €153, found on 24 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Eugene to St Louis?
In our observations January 2027 is the cheapest month so far, at €153.
Are there direct flights from Eugene to St Louis?
Our data holds no non-stop flight from Eugene to St Louis. The fares on this page include at least one stop.
Which airlines fly from Eugene to St Louis?
Routavio has seen these carriers on the route: Alaska Airlines, Allegiant Air, Frontier Airlines.
How long does the flight from Eugene to St Louis take?
Across the 15 fares Routavio observed, the average journey time is 15h 55m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Eugene to St Louis fares were non-stop?
None of the 15 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
Which airline has the lowest fare from Eugene to St Louis?
Cheapest airline from Eugene to St Louis: Allegiant Air, from €153 (checked 24 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.