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Dulles Intl

$566+ Cheap flights from Lewiston, ID (LWS) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
LWS — IAD
Jul 18 — Jul 251
Sat 7/18
Sat 7/25
1 adult, Economy
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Cheap 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 June 18, 2026.

This Delta deal was found by Cheapflights users on 6/16. 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.
Thu 7/1612:18 pm
LWS
-
IAD
1 stop8h 18m
Delta
Wed 7/227:15 am
IAD
-
LWS
1 stop7h 22m
Delta
Deal found 6/16$566
This Delta deal was found by Cheapflights users on 6/17. 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.
Wed 8/2612:23 pm
LWS
-
IAD
1 stop8h 16m
Delta
Thu 9/1012:25 pm
IAD
-
LWS
2 stops13h 43m
Delta
Deal found 6/17$699
This Delta deal was found by Cheapflights users on 6/14. 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.
Mon 7/139:00 am
LWS
-
IAD
2 stops11h 13m
Delta
Sun 7/197:15 am
IAD
-
LWS
1 stop7h 22m
Delta
Deal found 6/14$991
This Delta deal was found by Cheapflights users on 6/15. 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 8/412:23 pm
LWS
-
IAD
1 stop8h 16m
Delta
Mon 8/107:00 am
IAD
-
LWS
1 stop7h 43m
Delta
Deal found 6/15$1,537

Find 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 June 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$566
(Delta)
Provider with most accurate pricing for Lewiston Nez Perce Rgnl-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Lewiston Nez Perce Rgnl-Washington, D.C. Dulles Intl flights.
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From Lewiston Nez Perce Rgnl to Washington, D.C. Dulles Intl
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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 June 18, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Thu 7/16

12:18 pm-11:36 pm

1 stop8h 18m

Washington, D.C. Dulles Intl

Wed 7/22

7:15 am-11:37 am

1 stop7h 22m

$566

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Wed 8/26

12:23 pm-11:39 pm

1 stop8h 16m

Washington, D.C. Dulles Intl

Thu 9/10

12:25 pm-11:08 pm

2 stops13h 43m

$699

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 7/13

9:00 am-11:13 pm

2 stops11h 13m

Washington, D.C. Dulles Intl

Sun 7/19

7:15 am-11:37 am

1 stop7h 22m

$991

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 8/4

12:23 pm-11:39 pm

1 stop8h 16m

Washington, D.C. Dulles Intl

Mon 8/10

7:00 am-11:43 am

1 stop7h 43m

$1,537

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Lewiston, Idaho-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lewiston, Idaho-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lewiston, Idaho-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Lewiston, Idaho-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Lewiston, Idaho-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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 8h 18m. 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.

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
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Laurel
Hanover
Chantilly
Falls Church
Waldorf
Silver Spring
Largo
Clinton

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