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Washington, D.C.

$442+ Cheap flights from Lewiston, ID (LWS) to Washington, D.C. (WAS)

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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
LWS — WAS
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap flight deals from Lewiston to Washington, D.C.

Cheapest flights from Lewiston to Washington, D.C.
Explore the most affordable flight options available from Lewiston to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.

This Delta deal was found by Cheapflights users on 3/10. 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 3/1112:10 pm
LWS
-
IAD
1 stop8h 30m
Delta
Wed 3/187:20 am
IAD
-
LWS
1 stop7h 07m
Delta
Deal found 3/10$766
This Delta deal was found by Cheapflights users on 3/10. 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 3/2512:10 pm
LWS
-
IAD
1 stop8h 30m
Delta
Sun 3/297:20 am
IAD
-
LWS
1 stop7h 07m
Delta
Deal found 3/10$832
This Delta deal was found by Cheapflights users on 3/10. 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 3/1112:10 pm
LWS
-
BWI
2 stops9h 43m
Delta
Wed 3/187:01 am
BWI
-
LWS
1 stop7h 26m
Delta
Deal found 3/10$898
This Delta deal was found by Cheapflights users on 3/9. 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 3/246:10 am
LWS
-
DCA
2 stops9h 16m
Delta
Sat 3/284:40 pm
DCA
-
LWS
1 stop9h 20m
Delta
Deal found 3/9$934
This Delta deal was found by Cheapflights users on 3/9. 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 3/2412:10 pm
LWS
-
IAD
1 stop8h 30m
Delta
Sat 3/2812:14 pm
IAD
-
LWS
2 stops13h 46m
Delta
Deal found 3/9$998
This Delta deal was found by Cheapflights users on 3/6. 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.
Sun 6/712:30 pm
LWS
-
IAD
1 stop8h 21m
Delta
Sat 6/137:15 am
IAD
-
LWS
1 stop7h 27m
Delta
Deal found 3/6$1,058
This Delta deal was found by Cheapflights users on 3/10. 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 3/256:10 am
LWS
-
DCA
2 stops9h 16m
Delta
Sun 3/296:00 am
DCA
-
LWS
2 stops8h 27m
Delta
Deal found 3/10$1,109
This Delta deal was found by Cheapflights users on 3/10. 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 3/2512:10 pm
LWS
-
BWI
2 stops9h 43m
Delta
Sun 3/297:01 am
BWI
-
LWS
1 stop7h 26m
Delta
Deal found 3/10$1,134
This Delta deal was found by Cheapflights users on 3/9. 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 3/2412:10 pm
LWS
-
BWI
2 stops9h 43m
Delta
Sat 3/287:01 am
BWI
-
LWS
1 stop7h 26m
Delta
Deal found 3/9$1,364

Find flight deals from Lewiston to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Lewiston (LWS) to Washington, D.C. (WAS). 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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$934
(Delta)

One-way from

$442
(Delta)
Provider with most accurate pricing for Lewiston Nez Perce Rgnl-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Lewiston Nez Perce Rgnl-Washington, D.C. (WAS) flights.
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From Lewiston Nez Perce Rgnl to Washington, D.C. (WAS)
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One-way flight from Lewiston Nez Perce Rgnl to Washington, D.C. (WAS)
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Lewiston to Washington, D.C. 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 March 11, 2026.
Use the filters below to find and compare flights from Lewiston to Washington, D.C. 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

Wed 3/25

12:10 pm-11:40 pm

1 stop8h 30m

Washington, D.C. Dulles Intl

Sun 3/29

7:20 am-11:27 am

1 stop7h 07m

$832

LewistonWashington, D.C.

LWS - DCA

LWSDCA

Lewiston Nez Perce Rgnl

Tue 3/24

6:10 am-6:26 pm

2 stops9h 16m

Washington, D.C. Reagan-National

Sat 3/28

4:40 pm-11:00 pm

1 stop9h 20m

$934

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 3/24

12:10 pm-11:40 pm

1 stop8h 30m

Washington, D.C. Dulles Intl

Sat 3/28

12:14 pm-11:00 pm

2 stops13h 46m

$998

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Sun 6/7

12:30 pm-11:51 pm

1 stop8h 21m

Washington, D.C. Dulles Intl

Sat 6/13

7:15 am-11:42 am

1 stop7h 27m

$1,058

LewistonWashington, D.C.

LWS - DCA

LWSDCA

Lewiston Nez Perce Rgnl

Wed 3/25

6:10 am-6:26 pm

2 stops9h 16m

Washington, D.C. Reagan-National

Sun 3/29

6:00 am-11:27 am

2 stops8h 27m

$1,109

LewistonBaltimore

LWS - BWI

LWSBWI

Lewiston Nez Perce Rgnl

Wed 3/25

12:10 pm-12:53 am

2 stops9h 43m

Baltimore/Washington

Sun 3/29

7:01 am-11:27 am

1 stop7h 26m

$1,134

LewistonBaltimore

LWS - BWI

LWSBWI

Lewiston Nez Perce Rgnl

Tue 3/24

12:10 pm-12:53 am

2 stops9h 43m

Baltimore/Washington

Sat 3/28

7:01 am-11:27 am

1 stop7h 26m

$1,364
Cheapest one-way

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 6/29

9:00 am-11:29 pm

2 stops11h 29m

$620

LewistonBaltimore

LWS - BWI

LWSBWI

Lewiston Nez Perce Rgnl

Mon 4/20

6:09 am-6:17 pm

2 stops9h 08m

$750
Quickest one-way

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 4/20

12:13 pm-11:44 pm

1 stop8h 31m

$769

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 11 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Lewiston, Idaho-Washington, D.C. 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. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lewiston, Idaho-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Lewiston, Idaho-Washington, D.C. 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. 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 Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

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

Currently, January is the cheapest month in which you can book a flight from Lewiston, Idaho to Washington, D.C. (average of $91). Flying from Lewiston, Idaho to Washington, D.C. in December is currently the most expensive (average of $404). 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 Washington, D.C.. 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.?

    For a flight from Lewiston to Washington, D.C., you will be flying from Nez Perce Rgnl. Lewiston Nez Perce Rgnl (LWS) is just 1.9 mi from the center of the city. Nez Perce Rgnl is the only Lewiston airport and it handles 0 outbound flights to Washington, D.C. per day. 0 airlines have flights to Washington, D.C. from Lewiston Nez Perce Rgnl on a regular basis.

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

    For as low as $832, Delta can have you in Washington, D.C. from Lewiston, Idaho in 8h 30m. Lewiston, Idaho and Washington, D.C. are separated by a distance of 2050 mi.

  • What are the most popular routes from Lewiston, Idaho to Washington, D.C.?

    Most travelers choose Lewiston Nez Perce Rgnl - Washington, D.C. Dulles Intl, Lewiston Nez Perce Rgnl - Baltimore/Washington or Lewiston Nez Perce Rgnl - Washington, D.C. Reagan-National when deciding on the best route from Lewiston, Idaho to Washington, D.C..

  • Can I find deals for flights from Lewiston to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Lewiston to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Lewiston to Washington, D.C.?

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

  • Can I find deals for business class flights from Lewiston to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Lewiston to Washington, D.C. 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.?

    Currently, January is the cheapest month in which you can book a flight from Lewiston, Idaho to Washington, D.C. (average of $91). Flying from Lewiston, Idaho to Washington, D.C. in December is currently the most expensive (average of $404). 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

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