$59 Cheap Flights from Redmond (RDM) to Seattle (SEA)

View $59 flight on Sat, May 17, 2025Opens in a new window

Popular airlines from Redmond Municipal Airport (RDM) to Seattle-Tacoma International Airport (SEA)

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Find available prices by choosing your travel dates.

Cheap Flights from Redmond to Seattle (RDM-SEA)

Prices were available within the past 7 days and start at $59 for one-way flights and $119 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, May 24 - Tue, May 27
RDM
Redmond
SEA
Seattle
$119 Roundtrip, found 1 day ago
$119
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, May 24 from Redmond to Seattle, returning Tue, May 27, priced at $119 found 1 day ago
Delta
Sun, Jun 8 - Wed, Jun 11
RDM
Redmond
SEA
Seattle
$129 Roundtrip, just found
$129
Roundtrip
just found
Select Delta flight, departing Sun, Jun 8 from Redmond to Seattle, returning Wed, Jun 11, priced at $129 just found
Alaska Airlines
Fri, May 16 - Sun, May 18
RDM
Redmond
SEA
Seattle
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, May 16 from Redmond to Seattle, returning Sun, May 18, priced at $137 just found
Alaska Airlines
Thu, Jun 12 - Sun, Jun 15
RDM
Redmond
SEA
Seattle
$138 Roundtrip, found 1 day ago
$138
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Jun 12 from Redmond to Seattle, returning Sun, Jun 15, priced at $138 found 1 day ago
Alaska Airlines
Fri, May 16 - Sun, May 18
RDM
Redmond
SEA
Seattle
$139 Roundtrip, just found
$139
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, May 16 from Redmond to Seattle, returning Sun, May 18, priced at $139 just found
Alaska Airlines
Fri, May 16 - Sun, May 18
RDM
Redmond
SEA
Seattle
$147 Roundtrip, just found
$147
Roundtrip
just found
Select Alaska Airlines flight, departing Fri, May 16 from Redmond to Seattle, returning Sun, May 18, priced at $147 just found
Alaska Airlines
Fri, Jun 13 - Sat, Jun 14
RDM
Redmond
SEA
Seattle
$147 Roundtrip, found 1 hour ago
$147
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Fri, Jun 13 from Redmond to Seattle, returning Sat, Jun 14, priced at $147 found 1 hour ago
Alaska Airlines
Thu, Jun 12 - Sat, Jun 14
RDM
Redmond
SEA
Seattle
$148 Roundtrip, found 17 hours ago
$148
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Thu, Jun 12 from Redmond to Seattle, returning Sat, Jun 14, priced at $148 found 17 hours ago
United
Fri, May 30 - Mon, Jun 2
RDM
Redmond
SEA
Seattle
$413 Roundtrip, found 4 hours ago
$413
Roundtrip
found 4 hours ago
Select United flight, departing Fri, May 30 from Redmond to Seattle, returning Mon, Jun 2, priced at $413 found 4 hours ago
American Airlines
Wed, May 7 - Wed, May 14
RDM
Redmond
PAE
Seattle
$2,545 Roundtrip, found 7 hours ago
$2,545
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Wed, May 7 from Redmond to Seattle, returning Wed, May 14, priced at $2,545 found 7 hours ago
Flights from Redmond (RDM) to Seattle (SEA)
Origin airport
Robert's Field
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$111
Distance
227 mi

Redmond to Seattle Flights

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

The best time to book a flight from Redmond to Seattle

Sunday is one of the best days to book for cheap flights from Redmond 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 Redmond 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 Redmond to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $59 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 Redmond 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 Redmond 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 Robert's Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA) cost?
Book cheap return fares starting from $117 from Robert’s Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving RDM on May 17 2025 and touching down at SEA. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from RDM to SEA?
The cheapest flights from RDM to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Robert's Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA)?
Fly directly from Robert’s Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA) on an Alaska Airlines flight.
What is the cheapest airline that flies from RDM to SEA?
With tickets starting at $59 for a one-way flight from RDM to SEA, Alaska Airlines is currently the cheapest carrier flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from RDM on June 17 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Robert's Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA)?
Each day on average, 6 direct flights operate from Robert’s Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA). Select the departure date that works for you.
What are the most popular departure times for flights from Robert's Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA)?
More travelers fly between RDM and SEA at 6 AM than at any other time of day. Rather skip the crowds? Try choosing a quieter departure window and it’s possible you’ll save on your fare as well.
What day of the week has the most flights from RDM to SEA?
If you travel on a Friday, you’ll get the widest range of options for flights from Robert’s Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from Robert's Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA)?
Hop on the earliest flight at around 6:00AM UTC-8, departing from Robert’s Field Airport (RDM). You’ll be flying for approximately 1h 15m, reaching Seattle - Tacoma Intl. Airport (SEA) at approximately 7:15AM UTC-8.
How long does it take to fly from Robert's Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA)?
Flights from RDM to SEA have an average travel time of 1 hour and 22 minutes. The distance between the two airports is 230 mi.
What airline has the least delays from RDM to SEA?
With 83% of flights generally arriving on schedule, Delta Air Lines has the best on-time performance for direct flights from Robert’s Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA). To monitor your flight status and receive notifications if anything changes, head to the Expedia App.
What is the best time to fly from Robert's Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid potential delays on the Robert’s Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**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.
What airports do you fly into for Seattle from Robert's Field Airport (RDM)?
If you’re taking a direct flight from Robert’s Field Airport (RDM) to Seattle, Seattle - Tacoma Intl. Airport (SEA) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Robert's Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Holding off until just before your departure to book a flight from RDM to SEA often results in higher prices. While you may come across some last-minute deals, they’re not always guaranteed. Be flexible with your itinerary for a better chance of scoring a bargain.
Is it cheaper to book a RDM to SEA flight and hotel package?
You’ll generally save money by securing a RDM 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 convenient place. After selecting your ideal accommodations and flights, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Robert's Field Airport (RDM) to Seattle - Tacoma Intl. Airport (SEA)?
If you booked your RDM to SEA flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.