Cheap Flights from Renton (RNT) to Seattle (SEA)

Popular airlines from Renton, WA (RNT-Renton Municipal) to Seattle-Tacoma International Airport (SEA)

Flights from Renton (RNT) to Seattle (SEA)
Origin airport
Renton Municipal
Destination airport
Seattle - Tacoma Intl.
Distance
5 mi

Renton to Seattle Flights

The cheapest times to fly from Renton to Seattle

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 Renton to Seattle are during the month of . You can find some of the cheapest flights from Renton to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Renton to Seattle

Sunday is one of the best days to book for cheap flights from Renton to Seattle: 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 Renton to Seattle

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 Renton to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Renton to Seattle 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 Renton to Seattle 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.

 

Frequently asked questions

How much does a flight from Renton Municipal Airport (RNT) to Seattle - Tacoma Intl. Airport (SEA) cost?
Grab a cheap one-way flight or cheap return flight from Renton Municipal Airport (RNT) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Renton Municipal Airport (RNT) to Seattle - Tacoma Intl. Airport (SEA)?
Planning your getaway for can help you save, as it's the cheapest month for flights between RNT and SEA. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Renton Municipal Airport (RNT) to Seattle - Tacoma Intl. Airport (SEA)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest RNT to SEA flight.
How many flights per day from Renton Municipal Airport (RNT) to Seattle - Tacoma Intl. Airport (SEA)?
You'll need to book a flight with a layover if you're traveling from Renton Municipal Airport (RNT) to Seattle - Tacoma Intl. Airport (SEA). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from RNT to SEA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on a number of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Renton Municipal Airport (RNT) to Seattle - Tacoma Intl. Airport (SEA)?
Select a flight from Renton Municipal Airport (RNT) to Seattle - Tacoma Intl. Airport (SEA) that leaves before 3 PM to reduce the risk of cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Renton Municipal Airport (RNT) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute fares from RNT to SEA are usually more expensive. To secure the lowest rates, start looking for flights as soon as possible. That being said, if you're flexible with your travel dates, you may land a cheap ticket right before you leave.
Is it cheaper to book a RNT to SEA flight and hotel package?
You'll generally save money by booking a RNT to SEA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After selecting your preferred flights and accommodations, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Renton Municipal Airport (RNT) to Seattle - Tacoma Intl. Airport (SEA)?
Typically, it's possible to reschedule or cancel your RNT to SEA flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.