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Dulles Intl

$412+ Cheap flights from Lewiston, ID (LWS) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
LWS — IAD
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Lewiston to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Lewiston (LWS) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$742
(Delta)

One-way from

$412
(Delta)
From Lewiston Nez Perce Rgnl to Washington, D.C. Dulles Intl
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One-way flight from Lewiston Nez Perce Rgnl to Washington, D.C. Dulles Intl
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Find flight deals from Lewiston to Dulles Intl

Cheapest flights from Lewiston to Dulles Intl
Explore the most affordable flight options available from Lewiston to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/122:02 pmLWS - IAD
1 stop6h 31mDelta
Sun 9/147:05 amIAD - LWS
1 stop9h 17mDelta
Deal found 8/17$742
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/22:00 pmLWS - IAD
1 stop6h 32mDelta
Sat 9/61:00 pmIAD - LWS
2 stops11h 03mDelta
Deal found 8/18$784

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lewiston to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Lewiston to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Lewiston

Fly to

Dulles Intl

Route

Depart

Return

Price

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Fri 9/12

2:02 pm-11:33 pm

1 stop6h 31m

Washington, D.C. Dulles Intl

Sun 9/14

7:05 am-1:22 pm

1 stop9h 17m

$742

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 9/2

2:00 pm-11:32 pm

1 stop6h 32m

Washington, D.C. Dulles Intl

Sat 9/6

1:00 pm-9:03 pm

2 stops11h 03m

$784

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Sat 11/1

7:10 am-11:20 pm

2 stops13h 10m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Best time to book a flight from Lewiston to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Lewiston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Lewiston to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Lewiston to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Lewiston to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Lewiston, you will be flying from Nez Perce Rgnl, which is the city’s only airport. Lewiston Nez Perce Rgnl (LWS) is located 1.9 mi from the center of Lewiston. There are 0 flights from Nez Perce Rgnl to Washington, D.C. Dulles Intl per day from 0 different airlines.

  • How long is the flight from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport?

    Airlines like Delta fly from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport in about 6h 31m. The time it takes to get you to your destination can typically vary by up to . The distance between Lewiston, Idaho and Washington, D.C. Dulles Intl Airport is about 2050 mi.

  • Can I find deals for flights from Lewiston to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Lewiston to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Lewiston to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lewiston to Dulles Intl.

  • Can I find deals for business class flights from Lewiston to Dulles Intl?

    Yes. Cheapflights offers flight deals from Lewiston to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

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