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Cheap flights from Lewiston, Idaho to Washington, D.C. from $493

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lewiston, Idaho to Washington, D.C. departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Lewiston, Idaho to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:30 pm - 11:51 pm
LWS
-
IAD
8h 21m1 stop
Delta Logo
7:15 am - 11:42 am
IAD
-
LWS
7h 27m1 stop
$928Delta
Sun, Jun 7 - Sat, Jun 13
Delta Logo
12:30 pm - 11:51 pm
LWS
-
IAD
8h 21m1 stop
Delta Logo
6:00 am - 11:42 am
IAD
-
LWS
8h 42m2 stops
$1,014Delta
Sun, Jun 7 - Sat, Jun 13
Delta Logo
12:30 pm - 12:09 am
LWS
-
IAD
8h 39m2 stops
Delta Logo
6:00 am - 11:42 am
IAD
-
LWS
8h 42m2 stops
$1,169Delta
Sun, Jun 7 - Sat, Jun 13

Delta flights from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Lewiston, Idaho to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Jun 7
LWS12:30 pmLewiston Nez Perce Rgnl
8h 21m
1 stop
IAD11:51 pmWashington, D.C. Dulles Intl
Jun 13
IAD7:15 amWashington, D.C. Dulles Intl
7h 27m
1 stop
LWS11:42 amLewiston Nez Perce Rgnl
$928
Find similar
Delta
Jun 7
LWS12:30 pmLewiston Nez Perce Rgnl
8h 21m
1 stop
IAD11:51 pmWashington, D.C. Dulles Intl
Jun 13
IAD6:00 amWashington, D.C. Dulles Intl
8h 42m
2 stops
LWS11:42 amLewiston Nez Perce Rgnl
$1,014
Find similar
Delta
Jun 7
LWS12:30 pmLewiston Nez Perce Rgnl
8h 39m
2 stops
IAD12:09 amWashington, D.C. Dulles Intl
Jun 13
IAD6:00 amWashington, D.C. Dulles Intl
8h 42m
2 stops
LWS11:42 amLewiston Nez Perce Rgnl
$1,169
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated December 28, 2025.
Use the filters below to find and compare flights from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

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

$928

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

6:00 am-11:42 am

2 stops8h 42m

$1,014

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Sun 6/7

12:30 pm-12:09 am

2 stops8h 39m

Washington, D.C. Dulles Intl

Sat 6/13

6:00 am-11:42 am

2 stops8h 42m

$1,169

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Fri 1/9

12:24 pm-11:48 pm

1 stop8h 24m

$493

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Fri 1/9

7:05 am-11:57 pm

2 stops13h 52m

$499

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 4/20

12:13 pm-11:44 pm

1 stop8h 31m

$558

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 4/20

6:09 am-11:44 pm

2 stops14h 35m

$577

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Wed 1/7

12:24 pm-11:48 pm

1 stop8h 24m

$593

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Sun 1/4

7:15 am-11:08 pm

2 stops12h 53m

$599

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Fri 1/2

7:15 am-11:57 pm

2 stops13h 42m

$690

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Lewiston Nez Perce Rgnl to Washington, D.C. Dulles Intl?

Delta is the most popular carrier operating from Lewiston Nez Perce Rgnl to Washington, D.C. Dulles Intl

What airlines fly to Washington, D.C. Dulles Intl Airport?

Delta, Alaska Airlines and United Airlines are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Lewiston, Idaho according to our data. Delta is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 4 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

When to book flights from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Lewiston, Idaho to Washington, D.C. Dulles Intl Airport (LWS to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport

Fastest flight time

8h 21m

Direct flights

None
The fastest flight from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport takes 8h 21m
There are no direct flights from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Lewiston, Idaho to Washington, D.C. Dulles Intl Airport.
Search flight deals

  • How far is Lewiston Nez Perce Rgnl to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from Lewiston Nez Perce Rgnl to Washington, D.C. Dulles Intl is 2049.6 mi. In terms of flight time, this usually takes a little over 8h 21m.

  • When did momondo last update prices for flights from Lewiston Nez Perce Rgnl Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Lewiston Nez Perce Rgnl Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Lewiston Nez Perce Rgnl Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lewiston Nez Perce Rgnl Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Harpers Ferry
Gaithersburg
Reston
Manassas
Sterling
Fairfax

Why use momondo?

Why should I use momondo to find a flight deal from Lewiston to Washington, D.C.?

Finding the right flight to Washington, D.C. from Lewiston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Lewiston to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. from Lewiston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Lewiston to Washington, D.C.?

Once all potential Lewiston to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Lewiston to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Lewiston to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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