$273 Cheap Flights from Eugene (EUG) to Riverton (RIW)

View $273 flight on Tue, Apr 28, 2026Opens in a new window

Popular airlines from Mahlon Sweet Field Airport (EUG) to Riverton, WY (RIW-Riverton Regional)

Cheap Flights from Eugene to Riverton (EUG-RIW)

Prices were available within the past 7 days and start at $273 for one-way flights and $318 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Apr 23 - Sun, Apr 26
EUG
Eugene
RIW
Riverton
$318 Roundtrip, found 4 days ago
$318
Roundtrip
found 4 days ago
Select United flight, departing Thu, Apr 23 from Eugene to Riverton, returning Sun, Apr 26, priced at $318 found 4 days ago
United
Wed, Apr 22 - Sat, Apr 25
EUG
Eugene
RIW
Riverton
$324 Roundtrip, found 4 days ago
$324
Roundtrip
found 4 days ago
Select United flight, departing Wed, Apr 22 from Eugene to Riverton, returning Sat, Apr 25, priced at $324 found 4 days ago
United
Wed, Apr 8 - Sat, Apr 11
EUG
Eugene
RIW
Riverton
$353 Roundtrip, found 6 days ago
$353
Roundtrip
found 6 days ago
Select United flight, departing Wed, Apr 8 from Eugene to Riverton, returning Sat, Apr 11, priced at $353 found 6 days ago
United
Thu, Apr 23 - Sun, Apr 26
EUG
Eugene
RIW
Riverton
$398 Roundtrip, found 4 days ago
$398
Roundtrip
found 4 days ago
Select United flight, departing Thu, Apr 23 from Eugene to Riverton, returning Sun, Apr 26, priced at $398 found 4 days ago
United
Wed, Apr 22 - Sat, Apr 25
EUG
Eugene
RIW
Riverton
$404 Roundtrip, found 4 days ago
$404
Roundtrip
found 4 days ago
Select United flight, departing Wed, Apr 22 from Eugene to Riverton, returning Sat, Apr 25, priced at $404 found 4 days ago
United
Wed, Apr 8 - Sat, Apr 11
EUG
Eugene
RIW
Riverton
$423 Roundtrip, found 6 days ago
$423
Roundtrip
found 6 days ago
Select United flight, departing Wed, Apr 8 from Eugene to Riverton, returning Sat, Apr 11, priced at $423 found 6 days ago
United
Thu, Apr 23 - Sun, Apr 26
EUG
Eugene
RIW
Riverton
$433 Roundtrip, found 4 days ago
$433
Roundtrip
found 4 days ago
Select United flight, departing Thu, Apr 23 from Eugene to Riverton, returning Sun, Apr 26, priced at $433 found 4 days ago
United
Thu, Apr 23 - Sun, Apr 26
EUG
Eugene
RIW
Riverton
$458 Roundtrip, found 4 days ago
$458
Roundtrip
found 4 days ago
Select United flight, departing Thu, Apr 23 from Eugene to Riverton, returning Sun, Apr 26, priced at $458 found 4 days ago
United
Wed, Apr 22 - Sat, Apr 25
EUG
Eugene
RIW
Riverton
$464 Roundtrip, found 4 days ago
$464
Roundtrip
found 4 days ago
Select United flight, departing Wed, Apr 22 from Eugene to Riverton, returning Sat, Apr 25, priced at $464 found 4 days ago
United
Wed, Apr 8 - Sat, Apr 11
EUG
Eugene
RIW
Riverton
$469 Roundtrip, found 6 days ago
$469
Roundtrip
found 6 days ago
Select United flight, departing Wed, Apr 8 from Eugene to Riverton, returning Sat, Apr 11, priced at $469 found 6 days ago
United
Thu, Apr 23 - Sun, Apr 26
EUG
Eugene
RIW
Riverton
$472 Roundtrip, found 4 days ago
$472
Roundtrip
found 4 days ago
Select United flight, departing Thu, Apr 23 from Eugene to Riverton, returning Sun, Apr 26, priced at $472 found 4 days ago
United
Fri, Apr 24 - Sun, Apr 26
EUG
Eugene
RIW
Riverton
$479 Roundtrip, found 4 days ago
$479
Roundtrip
found 4 days ago
Select United flight, departing Fri, Apr 24 from Eugene to Riverton, returning Sun, Apr 26, priced at $479 found 4 days ago
United
Wed, Apr 8 - Sat, Apr 11
EUG
Eugene
RIW
Riverton
$493 Roundtrip, found 6 days ago
$493
Roundtrip
found 6 days ago
Select United flight, departing Wed, Apr 8 from Eugene to Riverton, returning Sat, Apr 11, priced at $493 found 6 days ago
United
Wed, Apr 8 - Sat, Apr 11
EUG
Eugene
RIW
Riverton
$526 Roundtrip, found 6 days ago
$526
Roundtrip
found 6 days ago
Select United flight, departing Wed, Apr 8 from Eugene to Riverton, returning Sat, Apr 11, priced at $526 found 6 days ago

Alternative airports near Riverton

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Riverton Regional RIW. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $353
RIW
Riverton Regional
CheapestClosest
Average driving time to city center8 min
Flights from $353

Frequently asked questions

How much does a flight from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional) cost?
You can find cheap one-way flights from $273 and cheap return flights from $318 Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional) with Expedia. One-way flights usually range from $384 to $883, and return flights typically cost between $258 and $1683. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional)?
The cheapest month to fly from EUG to RIW is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional)?
Enter EUG to RIW and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional)?
United is one of the cheapest airlines offering connecting flights from Eugene (EUG) to Riverton (RIW), with round-trip tickets starting from around $258. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional)?
To find a cheap flight from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional)?
The earliest flight from Mahlon Sweet Field (EUG) to Riverton Regional (RIW) usually departs at around 5:00 AM, operated by United. This seasonal service is active in January, allowing you to maximize your time in Riverton. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional)?
The most popular departure times for flights from Mahlon Sweet Field (EUG) to Riverton Regional (RIW) are in the early morning, from 3am to 6am. About 56% of passengers prefer this time window. Many major carriers, including United Airlines and Delta Airlines, offer flights during this window. This timing works well because it allows you to start your day early and make the most of your time in Riverton.
How long does it take to fly from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional)?
Flights from EUG to RIW with one stop typically take around 8 hours 20 minutes, covering approximately 741 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional)?
Select the "Business class" and "First class" filters when looking for EUG to RIW flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional) flight with Expedia?
It's easy to earn miles on a Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Riverton from Mahlon Sweet Field (EUG)?
If you're planning to travel to Riverton from Mahlon Sweet Field (EUG), you can fly into Riverton Regional (RIW) Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Salt Lake City Intl. (SLC), San Francisco Intl. (SFO) before reaching Riverton. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional) at the last minute?
Typically, booking a last minute flight from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional) flight and hotel package?
Securing a Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional)?
If you booked your Eugene, OR (EUG) to Riverton, WY (RIW-Riverton Regional) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Eugene
Destination airport
Riverton Regional
Roundtrip price
$318
Distance
740 mi

Book with confidence

Eugene to Riverton Flights

The cheapest times to fly from Eugene to Riverton

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Eugene to Riverton are during the month of April. You can find some of the cheapest flights from Eugene to Riverton with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Eugene to Riverton

Sunday is one of the best days to book for cheap flights from Eugene to Riverton: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Eugene to Riverton

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Eugene to Riverton in 2026. You can also book with separate airlines for your outbound and return journeys, from $273 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Eugene to Riverton flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Eugene to Riverton airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Eugene to Riverton Flights

*Flight schedules are subject to change.

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*Available to One Key members.