Cheap Flights from St Louis to Eugene

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Find the cheapest month or even day of the year to fly to Eugene

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Find the cheapest month to fly from St Louis to Eugene

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Eugene flights are currently cheapest in September.

St Louis to Eugene: Alternative routes

Compare routes from St Louis to Eugene below. You may find an airport to fly into that's cheaper, faster, or easier than Eugene.

St Louis to Eugene: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 6,465
Cheapest month to flySeptember

Finding cheap flights from St Louis to Eugene: Frequently asked questions

The best price we found for a return flight from St Louis to Eugene is ج.م.‏ 18,542. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Eugene. But we found flights with one or more stops from ج.م.‏ 18,581.
As of June 2025, there are no flights flying from St Louis to Eugene.
The cheapest month to fly from St Louis to Eugene is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Eugene Airport on Friday, 4 July 2025.
No airlines currently offer direct flights between St Louis Airport and Eugene Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Eugene but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Eugene is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Southwest Airlines offers the cheapest flight tickets to Eugene.

Travelling from Lambert-St. Louis International Airport (STL) to Mahlon Sweet Field Airport (EUG): what you need to know

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Make sure you're at the airport on time to catch your STL to EUG flight.

  • Flying during a peak month such as July? Public holidays and other popular periods can mean longer queues at security. Play it safe and arrive up to four hours before an international flight and two hours before a domestic departure.

  • We make it a piece of cake to book a flight with a stopover. To see all your options for tickets from Lambert-St. Louis International Airport to Mahlon Sweet Field Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to visit your chosen city. Stopovers between STL and EUG include:

    • Minneapolis-St. Paul International Airport

    • Denver International Airport

    • Salt Lake City International Airport

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Mahlon Sweet Field Airport (EUG)

  • ج.م.‏ 6,479 is currently the best price for a one-way Lambert-St. Louis International Airport to Mahlon Sweet Field Airport flight. Return flights start from ج.م.‏ 18,542. These prices can change based on demand and availability.

  • It's often best to book ahead of time if you're hoping to get cheap tickets from STL to EUG. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.

  • The 'Whole month' search tool shows you the cheapest flights from Lambert-St. Louis International Airport to Mahlon Sweet Field Airport across each month. It's a good way to find a bargain if your trip dates aren't set in stone.

  • Landing cheap flights from STL to EUG couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll notify you when a new deal comes up.

  • Choose your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Lambert-St. Louis International Airport to Mahlon Sweet Field Airport.

Handy information about Lambert-St. Louis International Airport (STL)

  • You'll find STL at 10701 Lambert International Blvd..

  • When it comes to the on-time performance of Lambert-St. Louis International Airport, 78.04% of flights stick to their scheduled arrival time.

  • To reach Lambert-St. Louis International Airport from central St Louis, it'll take around 20 minutes if you're going by car. Of course, this depends on traffic conditions. It's approximately 26 kilometres from the airport to the city centre.

  • The trip on public transport will take about 35 minutes.

  • Taking an early flight from Lambert-St. Louis International Airport to Mahlon Sweet Field Airport? Avoid the last-minute rush to the terminal (and enjoy a little extra shut-eye) by picking one of these hotels near STL:

Arriving at Mahlon Sweet Field Airport (EUG)

  • Hop off your Lambert-St. Louis International Airport to Mahlon Sweet Field Airport flight and be sprawled out in your hotel bed shortly after. If you want a convenient option that's not too far from EUG, make your way to Hampton Inn Eugene.

  • Pick up a Mahlon Sweet Field Airport rental car and discover Eugene and beyond with your own wheels. Dollar, Budget and Hertz are popular outlets to choose from here.

  • Lock in the best deal by reserving your ride from Mahlon Sweet Field Airport about three weeks before your departure date.

Getting from Mahlon Sweet Field Airport (EUG) to central Eugene

  • The street address for EUG is 28801 Douglas Dr.

  • Mahlon Sweet Field Airport is approximately 18 kilometres from central Eugene. Driving there takes about 20 minutes.

When to fly to Mahlon Sweet Field Airport (EUG)

  • July is the busiest month for flights from Lambert-St. Louis International Airport to Mahlon Sweet Field Airport. To skip the crowds, head to Eugene in May.

  • When reserving your flight from Lambert-St. Louis International Airport to Mahlon Sweet Field Airport, think about the type of weather you like. August is the warmest month in Eugene, with the temperature ranging from 9ºC to 31ºC.

  • February sees average temperatures of between -1ºC and 13ºC. Search for cheap tickets from STL to EUG sometime around then if you want to travel in cooler conditions.

Explore more of United States

  • Seattle is just one of the many places in United States waiting to be explored once you've seen Eugene. Around 402 kilometres away to the north, its top attractions include Greyhound: Bus Station, LMN Architects and Boeing Radiation Effects Lab.

  • If you're ready to explore another well-known destination in United States, consider Portland, roughly 161 kilometres north of Eugene. Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.