What is the cheapest airline to fly from Seattle to Riverton, Wyoming round-trip?

United Airlines, at $266, was found to be the cheapest airline from Seattle to Riverton, Wyoming.. Users have found that United Airlines is 49% cheaper than the other options available to this destination.

What is the cheapest day to fly from Seattle to Riverton, Wyoming?

Travelers seeking maximum savings on their Seattle to Riverton, Wyoming flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Riverton, Wyoming ranges from 0.2 - 1.9 inches per month. May is typically the wettest month, when rainfall can reach 1.9 in. January is typically the driest time to visit Riverton, Wyoming when rainfall is around 0.2 in.

If weather is an important factor for your trip to Riverton, Wyoming, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

What is the cheapest day to fly round-trip from Seattle to Riverton, Wyoming?

Leaving on a Thursday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 14% on the overall cost on flights from Seattle to Riverton, Wyoming.

What is the cheapest month to fly from Seattle to Riverton, Wyoming?

August is one of the best times of the year to fly to Riverton, Wyoming from Seattle. Prices for August average $529 per person but you can even find prices for as low as $308. The most expensive prices can be found in the month of November. Opting for a August flight can save you 110% on your journey compared to booking in November

What is the cheapest time of day to fly from SEA to RIW?

One of the essential ways to save on airfare from Seattle to Riverton, Wyoming is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 21% on airfare.

Can I find deals for flights from Seattle to Riverton that include hotel bookings?

Yes. In addition to deals on Seattle to Riverton flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to Riverton?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Riverton.

Can I find deals for business class flights from Seattle to Riverton?

Yes. Cheapflights offers flight deals from Seattle to Riverton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheap flight deals from Seattle to Riverton

Popular in	November
Cheapest in	August
Average price	$353

Highest demand for flights based on searches. 23% potential increase in price ($159 potential increase over avg. RT price).

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Cheapest flight prices on average. 14% potential price decrease ($66 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Best time to book a flight from Seattle to Riverton

Have a flexible travel schedule? Discover the best time to fly to Riverton from Seattle with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Riverton

Get a feel of what it's like to fly with United Airlines from Seattle to Riverton by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,929 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,929 reviews

United Airlines

7.4

Good

8,929 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What is the cheapest airline to fly from Seattle to Riverton, Wyoming round-trip?
United Airlines, at $266, was found to be the cheapest airline from Seattle to Riverton, Wyoming.. Users have found that United Airlines is 49% cheaper than the other options available to this destination.
Can I find deals for flights from Seattle to Riverton that include hotel bookings?
Yes. In addition to deals on Seattle to Riverton flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Riverton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Riverton.
Can I find deals for business class flights from Seattle to Riverton?
Yes. Cheapflights offers flight deals from Seattle to Riverton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Seattle to Riverton

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$266	Average$408	FlexibilityNo cancel fee	On-time69%

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Find cheap flights from Seattle to Riverton with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Riverton

Popular in

Cheapest in

Average price

Best time to book a flight from Seattle to Riverton

Have a flexible travel schedule? Discover the best time to fly to Riverton from Seattle with our price prediction graph.

Reviews of airlines servicing Riverton

Get a feel of what it's like to fly with United Airlines from Seattle to Riverton by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Riverton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Seattle to Riverton, Wyoming round-trip?

Can I find deals for flights from Seattle to Riverton that include hotel bookings?

How can I find direct flights from Seattle to Riverton?

Can I find deals for business class flights from Seattle to Riverton?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Riverton

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Riverton by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Seattle to Riverton by cabin class

Find flights from Seattle to Riverton, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Seattle and Riverton flights

Browse other Seattle and Riverton flight options. Last updated on September 15, 2025.

Other flights from Seattle

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Other flights to Riverton

Explore flights to Riverton departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2025.

Top airline flying from Seattle to Riverton

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Cheap flights from Seattle to Riverton, WY (SEA - RIW)

Find cheap flights from Seattle to Riverton with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to Riverton

Popular in

Cheapest in

Average price

Best time to book a flight from Seattle to Riverton

Have a flexible travel schedule? Discover the best time to fly to Riverton from Seattle with our price prediction graph.

Reviews of airlines servicing Riverton

Get a feel of what it's like to fly with United Airlines from Seattle to Riverton by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Riverton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Seattle to Riverton, Wyoming round-trip?

Can I find deals for flights from Seattle to Riverton that include hotel bookings?

How can I find direct flights from Seattle to Riverton?

Can I find deals for business class flights from Seattle to Riverton?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Riverton

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Seattle to Riverton

100% Free

Book with Flexibility

Travel Smart