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Cheap flights from Lewiston, Idaho to Washington, D.C. from $543

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 3/3. 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

Delta Logo
7:05 am - 11:16 pmLWS-IAD
13h 11m1 stop
Delta Logo
7:59 pm - 8:02 pmIAD-LWS
51h 03m2 stops
$543Delta
Find Deal
Tue, Mar 3 - Sat, Mar 7
Delta Logo
7:05 am - 11:16 pmLWS-IAD
13h 11m1 stop
Delta Logo
7:00 am - 9:02 pmIAD-LWS
17h 02m1 stop
$546Delta
Find Deal
Tue, Mar 3 - Sat, Mar 7
Delta Logo
12:30 pm - 11:16 pmLWS-IAD
31h 46m2 stops
Delta Logo
7:59 pm - 8:02 pmIAD-LWS
51h 03m2 stops
$548Delta
Find Deal
Tue, Mar 3 - Sat, Mar 7
Delta Logo
12:30 pm - 11:16 pmLWS-IAD
31h 46m2 stops
Delta Logo
7:00 am - 9:02 pmIAD-LWS
17h 02m1 stop
$551Delta
Find Deal
Tue, Mar 3 - Sat, Mar 7
Delta Logo
12:30 pm - 11:16 pmLWS-IAD
31h 46m2 stops
Delta Logo
7:59 pm - 8:02 pmIAD-LWS
51h 03m2 stops
$578Delta
Find Deal
Tue, Mar 3 - Sat, Mar 7
Delta Logo
7:05 am - 11:16 pmLWS-IAD
13h 11m1 stop
Delta Logo
7:00 am - 9:02 pmIAD-LWS
17h 02m1 stop
$615Delta
Find Deal
Tue, Mar 3 - Sat, Mar 7
Delta Logo
12:28 pm - 11:29 pmLWS-IAD
8h 01m1 stop
Delta Logo
7:10 am - 11:47 amIAD-LWS
7h 37m1 stop
$886Delta
Find Deal
Mon, Nov 17 - Fri, Nov 21
Delta Logo
7:00 am - 11:03 pmLWS-IAD
13h 03m2 stops
Delta Logo
7:10 am - 11:47 amIAD-LWS
7h 37m1 stop
$892Delta
Find Deal
Mon, Nov 17 - Fri, Nov 21
Delta Logo
7:00 am - 11:03 pmLWS-IAD
13h 03m2 stops
Delta Logo
11:50 am - 9:06 pmIAD-LWS
12h 16m2 stops
$897Delta
Find Deal
Mon, Nov 17 - Fri, Nov 21

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 3
LWS7:05 amLewiston Nez Perce Rgnl
13h 11m
1 stop
IAD11:16 pmWashington, D.C. Dulles Intl
Mar 7
IAD7:59 pmWashington, D.C. Dulles Intl
51h 03m
2 stops
LWS8:02 pmLewiston Nez Perce Rgnl
$543
Find similar
Delta
Mar 3
LWS7:05 amLewiston Nez Perce Rgnl
13h 11m
1 stop
IAD11:16 pmWashington, D.C. Dulles Intl
Mar 7
IAD7:00 amWashington, D.C. Dulles Intl
17h 02m
1 stop
LWS9:02 pmLewiston Nez Perce Rgnl
$546
Find similar
Delta
Mar 3
LWS12:30 pmLewiston Nez Perce Rgnl
31h 46m
2 stops
IAD11:16 pmWashington, D.C. Dulles Intl
Mar 7
IAD7:59 pmWashington, D.C. Dulles Intl
51h 03m
2 stops
LWS8:02 pmLewiston Nez Perce Rgnl
$548
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 September 17, 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

Tue 3/3

7:05 am-11:16 pm

1 stop13h 11m

Washington, D.C. Dulles Intl

Sat 3/7

7:59 pm-8:02 pm

2 stops51h 03m

$543

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 3/3

7:05 am-11:16 pm

1 stop13h 11m

Washington, D.C. Dulles Intl

Sat 3/7

7:00 am-9:02 pm

1 stop17h 02m

$546

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 3/3

12:30 pm-11:16 pm

2 stops31h 46m

Washington, D.C. Dulles Intl

Sat 3/7

7:59 pm-8:02 pm

2 stops51h 03m

$548

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 3/3

12:30 pm-11:16 pm

2 stops31h 46m

Washington, D.C. Dulles Intl

Sat 3/7

7:00 am-9:02 pm

1 stop17h 02m

$551

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 3/3

12:30 pm-11:16 pm

2 stops31h 46m

Washington, D.C. Dulles Intl

Sat 3/7

7:59 pm-8:02 pm

2 stops51h 03m

$578

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Tue 3/3

7:05 am-11:16 pm

1 stop13h 11m

Washington, D.C. Dulles Intl

Sat 3/7

7:00 am-9:02 pm

1 stop17h 02m

$615

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 11/17

12:28 pm-11:29 pm

1 stop8h 01m

Washington, D.C. Dulles Intl

Fri 11/21

7:10 am-11:47 am

1 stop7h 37m

$886

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 11/17

7:00 am-11:03 pm

2 stops13h 03m

Washington, D.C. Dulles Intl

Fri 11/21

7:10 am-11:47 am

1 stop7h 37m

$892

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Mon 11/17

7:00 am-11:03 pm

2 stops13h 03m

Washington, D.C. Dulles Intl

Fri 11/21

11:50 am-9:06 pm

2 stops12h 16m

$897

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Lewiston, Idaho in the morning is the least expensive time of day to depart. momondo users have found prices as low as $318 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $539 on average. Flights to Washington, D.C. Dulles Intl Airport from Lewiston, Idaho at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
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 01m.

  • 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
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg

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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