$186 Cheap Flights from Redmond (RDM) to Washington (DCA)

View $186 flight on Wed, Nov 5, 2025Opens in a new window

Popular airlines from Redmond Municipal Airport (RDM) to Ronald Reagan Washington National Airport (DCA)

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Cheap Flights from Redmond to Washington (RDM-DCA)

Prices were available within the past 7 days and start at $186 for one-way flights and $335 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Sat, Dec 13 - Tue, Jan 13
RDM
Redmond
DCA
Washington
$335 Roundtrip, found 4 days ago
$335
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Sat, Dec 13 from Redmond to Washington, returning Tue, Jan 13, priced at $335 found 4 days ago
Hawaiian Airlines
Thu, Dec 11 - Tue, Jan 13
RDM
Redmond
DCA
Washington
$355 Roundtrip, found 4 days ago
$355
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Thu, Dec 11 from Redmond to Washington, returning Tue, Jan 13, priced at $355 found 4 days ago
Hawaiian Airlines
Fri, Dec 12 - Tue, Jan 13
RDM
Redmond
DCA
Washington
$358 Roundtrip, found 4 days ago
$358
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Fri, Dec 12 from Redmond to Washington, returning Tue, Jan 13, priced at $358 found 4 days ago
Hawaiian Airlines
Sat, Dec 6 - Tue, Dec 9
RDM
Redmond
DCA
Washington
$362 Roundtrip, found 14 hours ago
$362
Roundtrip
found 14 hours ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Redmond to Washington, returning Tue, Dec 9, priced at $362 found 14 hours ago
Hawaiian Airlines
Tue, Dec 2 - Sat, Dec 6
RDM
Redmond
DCA
Washington
$367 Roundtrip, found 14 hours ago
$367
Roundtrip
found 14 hours ago
Select Hawaiian Airlines flight, departing Tue, Dec 2 from Redmond to Washington, returning Sat, Dec 6, priced at $367 found 14 hours ago
Alaska Airlines
Tue, Dec 2 - Tue, Dec 9
RDM
Redmond
DCA
Washington
$373 Roundtrip, found 18 hours ago
$373
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Tue, Dec 2 from Redmond to Washington, returning Tue, Dec 9, priced at $373 found 18 hours ago
Delta
Wed, Dec 24 - Wed, Dec 31
RDM
Redmond
DCA
Washington
$373 Roundtrip, found 1 day ago
$373
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Dec 24 from Redmond to Washington, returning Wed, Dec 31, priced at $373 found 1 day ago
Alaska Airlines
Wed, Dec 24 - Wed, Dec 31
RDM
Redmond
DCA
Washington
$376 Roundtrip, found 1 day ago
$376
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Dec 24 from Redmond to Washington, returning Wed, Dec 31, priced at $376 found 1 day ago
American Airlines
Fri, Dec 12 - Wed, Jan 14
RDM
Redmond
DCA
Washington
$391 Roundtrip, found 4 days ago
$391
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Dec 12 from Redmond to Washington, returning Wed, Jan 14, priced at $391 found 4 days ago
United
Thu, Dec 4 - Sat, Dec 6
RDM
Redmond
DCA
Washington
$391 Roundtrip, found 13 hours ago
$391
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Dec 4 from Redmond to Washington, returning Sat, Dec 6, priced at $391 found 13 hours ago

Find the cheapest month to fly from Redmond (RDM) to Washington (DCA)

September is typically the cheapest month to fly

From $316 - $824 per traveler.
Flights from Redmond (RDM) to Washington (DCA)
Origin airport
Robert's Field
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$335
Distance
2283 mi

Redmond to Washington Flights

The cheapest times to fly from Redmond to Washington

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

 

The best time to book a flight from Redmond to Washington

Sunday is one of the best days to book for cheap flights from Redmond to Washington: 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 Washington

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 Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $186 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 Washington 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 Washington 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 Ronald Reagan Washington National Airport (DCA) cost?
Get a cheap one-way flight from $186 or cheap return flight from $335 from Robert's Field Airport (RDM) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Robert's Field Airport (RDM) to Ronald Reagan Washington National Airport (DCA)?
December is the least expensive month to fly from RDM to DCA. Timing your trip outside of the busy season is often the key to finding a great deal.
What is the cheapest airline that flies from Robert's Field Airport (RDM) to Ronald Reagan Washington National Airport (DCA)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest RDM to DCA flight.
How many flights per day from Robert's Field Airport (RDM) to Ronald Reagan Washington National Airport (DCA)?
There aren't any daily direct flights from Robert's Field Airport (RDM) to Ronald Reagan Washington National Airport (DCA). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from RDM to DCA?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Robert's Field Airport (RDM) to Ronald Reagan Washington National Airport (DCA)?
To avoid potential delays on the Robert's Field Airport (RDM) to Ronald Reagan Washington National Airport (DCA) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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 Robert's Field Airport (RDM) to Ronald Reagan Washington National Airport (DCA) last-minute?
Waiting until just before your departure to book your flight from RDM to DCA often results in higher prices. While you may come across some last-minute deals, they aren't always guaranteed. Keep your travel plans flexible for a better chance of scoring a bargain.
Is it cheaper to book a RDM to DCA flight and hotel package?
Securing a RDM to DCA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our extensive range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Robert's Field Airport (RDM) to Ronald Reagan Washington National Airport (DCA)?
If you reserved your RDM to DCA 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 beyond this timeframe. 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.