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Cheap flights from Lewiston, Idaho to Washington, D.C. from $414

This is the cheapest round-trip 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 3/17. 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
12:10 pm - 11:40 pm
LWS
-
IAD
8h 30m
1 stop
Delta Logo
7:00 am - 11:00 pm
IAD
-
LWS
19h 00m
1 stop
$414Delta
Tue, Mar 17 - Tue, Mar 24
Delta Logo
6:10 am - 11:49 pm
LWS
-
IAD
14h 39m
1 stop
Delta Logo
1:19 pm - 11:00 pm
IAD
-
LWS
12h 41m
2 stops
$433Delta
Tue, Mar 17 - Tue, Mar 24
Delta Logo
6:10 am - 7:19 pm
LWS
-
IAD
34h 09m
2 stops
Delta Logo
7:00 am - 11:00 pm
IAD
-
LWS
19h 00m
1 stop
$451Delta
Mon, Mar 16 - Sun, Mar 22
Delta Logo
6:10 am - 7:19 pm
LWS
-
IAD
34h 09m
2 stops
Delta Logo
1:19 pm - 11:00 pm
IAD
-
LWS
12h 41m
2 stops
$456Delta
Mon, Mar 16 - Tue, Mar 24
Delta Logo
6:10 am - 4:52 pm
LWS
-
IAD
31h 42m
2 stops
Delta Logo
7:00 am - 11:00 pm
IAD
-
LWS
19h 00m
1 stop
$457Delta
Tue, Mar 17 - Sun, Mar 22
Delta Logo
6:10 am - 4:52 pm
LWS
-
IAD
31h 42m
2 stops
Delta Logo
2:15 pm - 11:00 pm
IAD
-
LWS
11h 45m
2 stops
$462Delta
Tue, Mar 17 - Mon, Mar 23
Delta Logo
12:10 pm - 11:40 pm
LWS
-
IAD
8h 30m
1 stop
Delta Logo
7:00 am - 11:00 pm
IAD
-
LWS
19h 00m
1 stop
$464Delta
Mon, Mar 16 - Mon, Mar 23
Delta Logo
6:10 am - 10:59 pm
LWS
-
IAD
37h 49m
2 stops
Delta Logo
7:00 am - 11:00 pm
IAD
-
LWS
19h 00m
1 stop
$467Delta
Sun, Mar 15 - Tue, Mar 24
Delta Logo
6:10 am - 10:59 pm
LWS
-
IAD
37h 49m
2 stops
Delta Logo
12:14 pm - 11:00 pm
IAD
-
LWS
13h 46m
2 stops
$472Delta
Sun, Mar 15 - Tue, Mar 24
Delta Logo
12:10 pm - 11:40 pm
LWS
-
IAD
8h 30m
1 stop
Delta Logo
12:14 pm - 11:00 pm
IAD
-
LWS
13h 46m
2 stops
$532Delta
Wed, Mar 18 - Tue, Mar 24

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
Mar 17
LWS12:10 pmLewiston Nez Perce Rgnl
8h 30m
1 stop
IAD11:40 pmWashington, D.C. Dulles Intl
Mar 24
IAD7:00 amWashington, D.C. Dulles Intl
19h 00m
1 stop
LWS11:00 pmLewiston Nez Perce Rgnl
$414
Delta
Mar 17
LWS6:10 amLewiston Nez Perce Rgnl
14h 39m
1 stop
IAD11:49 pmWashington, D.C. Dulles Intl
Mar 24
IAD1:19 pmWashington, D.C. Dulles Intl
12h 41m
2 stops
LWS11:00 pmLewiston Nez Perce Rgnl
$433
Delta
Mar 16
LWS6:10 amLewiston Nez Perce Rgnl
34h 09m
2 stops
IAD7:19 pmWashington, D.C. Dulles Intl
Mar 22
IAD7:00 amWashington, D.C. Dulles Intl
19h 00m
1 stop
LWS11:00 pmLewiston Nez Perce Rgnl
$451

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 February 13, 2026.
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

Tue 3/17

12:10 pm-11:40 pm

1 stop8h 30m

Washington, D.C. Dulles Intl

Tue 3/24

7:00 am-11:00 pm

1 stop19h 00m

$414

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 3/17

6:10 am-11:49 pm

1 stop14h 39m

Washington, D.C. Dulles Intl

Tue 3/24

1:19 pm-11:00 pm

2 stops12h 41m

$433

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 3/16

6:10 am-7:19 pm

2 stops34h 09m

Washington, D.C. Dulles Intl

Sun 3/22

7:00 am-11:00 pm

1 stop19h 00m

$451

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 3/16

6:10 am-7:19 pm

2 stops34h 09m

Washington, D.C. Dulles Intl

Tue 3/24

1:19 pm-11:00 pm

2 stops12h 41m

$456

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 3/17

6:10 am-4:52 pm

2 stops31h 42m

Washington, D.C. Dulles Intl

Sun 3/22

7:00 am-11:00 pm

1 stop19h 00m

$457

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 3/17

6:10 am-4:52 pm

2 stops31h 42m

Washington, D.C. Dulles Intl

Mon 3/23

2:15 pm-11:00 pm

2 stops11h 45m

$462

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 3/16

12:10 pm-11:40 pm

1 stop8h 30m

Washington, D.C. Dulles Intl

Mon 3/23

7:00 am-11:00 pm

1 stop19h 00m

$464

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Sun 3/15

6:10 am-10:59 pm

2 stops37h 49m

Washington, D.C. Dulles Intl

Tue 3/24

7:00 am-11:00 pm

1 stop19h 00m

$467

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Sun 3/15

6:10 am-10:59 pm

2 stops37h 49m

Washington, D.C. Dulles Intl

Tue 3/24

12:14 pm-11:00 pm

2 stops13h 46m

$472

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Wed 3/18

12:10 pm-11:40 pm

1 stop8h 30m

Washington, D.C. Dulles Intl

Tue 3/24

12:14 pm-11:00 pm

2 stops13h 46m

$532

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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 48% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 3 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
Laurel
Colonial Beach
Tysons
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Sterling
Fairfax
Linthicum Heights

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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