$159 Cheap Flights from Redmond (RDM) to Washington (DCA)

View $159 flight on Tue, Oct 14, 2025Opens in a new window

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

Cheap Flights from Redmond to Washington (RDM-DCA)

Prices were available within the past 7 days and start at $159 for one-way flights and $314 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bargain Flight
Sat, Sep 27 - Tue, Sep 30
RDM
Redmond
DCA
Washington
$314 Roundtrip, found 5 days ago
$314
Roundtrip
found 5 days ago
Select Bargain Flight flight, departing Sat, Sep 27 from Redmond to Washington, returning Tue, Sep 30, priced at $314 found 5 days ago
Hawaiian Airlines
Wed, Sep 24 - Sat, Oct 4
RDM
Redmond
DCA
Washington
$318 Roundtrip, found 5 days ago
$318
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Wed, Sep 24 from Redmond to Washington, returning Sat, Oct 4, priced at $318 found 5 days ago
United
Sat, Sep 27 - Tue, Sep 30
RDM
Redmond
DCA
Washington
$319 Roundtrip, found 5 days ago
$319
Roundtrip
found 5 days ago
Select United flight, departing Sat, Sep 27 from Redmond to Washington, returning Tue, Sep 30, priced at $319 found 5 days ago
American Airlines
Tue, Aug 26 - Sat, Aug 30
RDM
Redmond
DCA
Washington
$319 Roundtrip, found 19 hours ago
$319
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Tue, Aug 26 from Redmond to Washington, returning Sat, Aug 30, priced at $319 found 19 hours ago
Alaska Airlines
Sat, Sep 27 - Tue, Sep 30
RDM
Redmond
DCA
Washington
$321 Roundtrip, found 5 days ago
$321
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Sep 27 from Redmond to Washington, returning Tue, Sep 30, priced at $321 found 5 days ago
American Airlines
Tue, Aug 26 - Sat, Aug 30
RDM
Redmond
DCA
Washington
$324 Roundtrip, found 19 hours ago
$324
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Tue, Aug 26 from Redmond to Washington, returning Sat, Aug 30, priced at $324 found 19 hours ago
Delta
Tue, Sep 9 - Sat, Sep 13
RDM
Redmond
DCA
Washington
$324 Roundtrip, found 1 day ago
$324
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 9 from Redmond to Washington, returning Sat, Sep 13, priced at $324 found 1 day ago
American Airlines
Sat, Sep 27 - Tue, Sep 30
RDM
Redmond
DCA
Washington
$326 Roundtrip, found 5 days ago
$326
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Sep 27 from Redmond to Washington, returning Tue, Sep 30, priced at $326 found 5 days ago
American Airlines
Sat, Nov 1 - Wed, Nov 5
RDM
Redmond
DCA
Washington
$329 Roundtrip, found 5 days ago
$329
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Nov 1 from Redmond to Washington, returning Wed, Nov 5, priced at $329 found 5 days ago
United
Sat, Aug 30 - Wed, Sep 3
RDM
Redmond
DCA
Washington
$332 Roundtrip, found 4 days ago
$332
Roundtrip
found 4 days ago
Select United flight, departing Sat, Aug 30 from Redmond to Washington, returning Wed, Sep 3, priced at $332 found 4 days ago

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

September is typically the cheapest month to fly

From $294 - $883 per traveler.

Graph displaying average flight prices per month

Alternative airports near Washington

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

Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Cheapest option available. Average driving time to city center is 40 minutes. Flights from $479
BWI
Baltimore Washington Intl. Thurgood Marshall
Cheapest
Average driving time to city center40 min
Flights from $479
Select flight to Washington Dulles Intl. IAD. Average driving time to city center is 36 minutes. Flights from $781
IAD
Washington Dulles Intl.
Average driving time to city center36 min
Flights from $781
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, United
Roundtrip price
$314
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 September. 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 $159 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?
Discover the latest flight deals from RDM to DCA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from RDM to DCA?
The cheapest flights from RDM to DCA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from RDM to DCA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from RDM to DCA. Sort your results by "Price (lowest to highest)" to snap up a great deal.
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.