$337 Cheap Flights from Lewiston (LWS) to Washington (DCA)

View $337 flight on Tue, Mar 31, 2026Opens in a new window

Popular airlines from Lewiston, ID (LWS-Nez Perce County Regional) to Ronald Reagan Washington National Airport (DCA)

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Cheap Flights from Lewiston to Washington (LWS-DCA)

Prices were available within the past 7 days and start at $337 for one-way flights and $352 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Apr 26 - Mon, May 11
LWS
Lewiston
DCA
Washington
$352 Roundtrip, found 18 hours ago
$352
Roundtrip
found 18 hours ago
Select Delta flight, departing Sun, Apr 26 from Lewiston to Washington, returning Mon, May 11, priced at $352 found 18 hours ago
Delta
Sun, Apr 26 - Fri, May 15
LWS
Lewiston
DCA
Washington
$412 Roundtrip, found 18 hours ago
$412
Roundtrip
found 18 hours ago
Select Delta flight, departing Sun, Apr 26 from Lewiston to Washington, returning Fri, May 15, priced at $412 found 18 hours ago
Delta
Tue, Apr 7 - Tue, Apr 21
LWS
Lewiston
DCA
Washington
$432 Roundtrip, found 18 hours ago
$432
Roundtrip
found 18 hours ago
Select Delta flight, departing Tue, Apr 7 from Lewiston to Washington, returning Tue, Apr 21, priced at $432 found 18 hours ago
Delta
Tue, May 19 - Mon, Jun 1
LWS
Lewiston
DCA
Washington
$434 Roundtrip, found 23 hours ago
$434
Roundtrip
found 23 hours ago
Select Delta flight, departing Tue, May 19 from Lewiston to Washington, returning Mon, Jun 1, priced at $434 found 23 hours ago
Delta
Thu, May 14 - Mon, Jun 1
LWS
Lewiston
DCA
Washington
$484 Roundtrip, found 23 hours ago
$484
Roundtrip
found 23 hours ago
Select Delta flight, departing Thu, May 14 from Lewiston to Washington, returning Mon, Jun 1, priced at $484 found 23 hours ago
Delta
Sun, May 24 - Sat, Jun 6
LWS
Lewiston
DCA
Washington
$500 Roundtrip, found 23 hours ago
$500
Roundtrip
found 23 hours ago
Select Delta flight, departing Sun, May 24 from Lewiston to Washington, returning Sat, Jun 6, priced at $500 found 23 hours ago
Delta
Wed, May 20 - Sat, Jun 6
LWS
Lewiston
DCA
Washington
$542 Roundtrip, found 23 hours ago
$542
Roundtrip
found 23 hours ago
Select Delta flight, departing Wed, May 20 from Lewiston to Washington, returning Sat, Jun 6, priced at $542 found 23 hours ago
Delta
Sat, May 2 - Thu, May 14
LWS
Lewiston
DCA
Washington
$578 Roundtrip, found 18 hours ago
$578
Roundtrip
found 18 hours ago
Select Delta flight, departing Sat, May 2 from Lewiston to Washington, returning Thu, May 14, priced at $578 found 18 hours ago
Delta
Tue, May 19 - Thu, Jun 4
LWS
Lewiston
DCA
Washington
$654 Roundtrip, found 23 hours ago
$654
Roundtrip
found 23 hours ago
Select Delta flight, departing Tue, May 19 from Lewiston to Washington, returning Thu, Jun 4, priced at $654 found 23 hours ago
Delta
Mon, Mar 16 - Wed, Mar 18
LWS
Lewiston
DCA
Washington
$684 Roundtrip, found 5 days ago
$684
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Mar 16 from Lewiston to Washington, returning Wed, Mar 18, priced at $684 found 5 days ago

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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 $383
BWI
Baltimore Washington Intl. Thurgood Marshall
Cheapest
Average driving time to city center40 min
Flights from $383

Frequently asked questions

How much does a flight from Nez Perce County Regional Airport (LWS) to Ronald Reagan Washington National Airport (DCA) cost?
Secure a cheap one-way flight from $337 or cheap return flight from $352 from Nez Perce County Regional Airport (LWS) 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 offers on this route.
What is the cheapest month to fly from Nez Perce County Regional Airport (LWS) to Ronald Reagan Washington National Airport (DCA)?
The cheapest month to fly from LWS to DCA is April, when there's less demand. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Nez Perce County Regional Airport (LWS) to Ronald Reagan Washington National Airport (DCA)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest LWS to DCA flight.
How many flights per day from Nez Perce County Regional Airport (LWS) to Ronald Reagan Washington National Airport (DCA)?
There are no daily direct flights available from Nez Perce County Regional Airport (LWS) to Ronald Reagan Washington National Airport (DCA). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from LWS to DCA?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change based on various factors, including 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 Nez Perce County Regional Airport (LWS) to Ronald Reagan Washington National Airport (DCA)?
Choose a flight from Nez Perce County Regional Airport (LWS) to Ronald Reagan Washington National Airport (DCA) that takes off before 3 PM to reduce the risk of cancellations and delays. Later departures 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 Nez Perce County Regional Airport (LWS) to Ronald Reagan Washington National Airport (DCA) last-minute?
Booking your ticket from LWS to DCA right before your journey is generally more expensive. However, if you're flexible with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a LWS to DCA flight and hotel package?
Booking a LWS to DCA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Nez Perce County Regional Airport (LWS) to Ronald Reagan Washington National Airport (DCA)?
Generally, it's possible to reschedule or cancel your LWS to DCA flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Nez Perce County Regional
Destination airport
Ronald Reagan Washington National
Airlines serving
Delta
Roundtrip price
$352
Distance
2074 mi

Book with confidence

Lewiston to Washington Flights

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

 

The best time to book a flight from Lewiston to Washington

Sunday is one of the best days to book for cheap flights from Lewiston 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 Lewiston 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 Lewiston to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $337 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 Lewiston 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 Lewiston 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.

 

Lewiston to Washington Flights

*Flight schedules are subject to change.

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