In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.

If weather is an important factor for your trip to District of Columbia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from LWS to DC?

When flying from Lewiston, Idaho to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Lewiston to District of Columbia?

Lewiston Nez Perce Rgnl (LWS), located 1.9 mi from the city center, is the airport you fly out of when you book flights from Lewiston to District of Columbia.

How can I find direct flights from Lewiston to District of Columbia?

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

Can I find deals for business class flights from Lewiston to District of Columbia?

Yes. Cheapflights offers flight deals from Lewiston to District of Columbia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$412+ Flights from Lewiston, ID to District of Columbia

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One-way flights from Lewiston to District of Columbia
Search for one-way flight options from Lewiston to District of Columbia. Find affordable one-way fares based on user searches. Data last updated August 17, 2025.

Sat 11/17:10 amLWS - IAD

2 stops13h 10mDelta

Deal found 8/17

$412

Sat 11/17:10 amLWS - DCA

2 stops12h 49mDelta

Deal found 8/17

$412

Cheapflights Fare Finder

Use the filters below to find and compare flights from Lewiston to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LewistonWashington, D.C.

LWS - IAD

LWSIAD

Lewiston Nez Perce Rgnl

Sat 11/1

7:10 am-11:20 pm

2 stops13h 10m

$412

LewistonWashington, D.C.

LWS - DCA

LWSDCA

Lewiston Nez Perce Rgnl

Sat 11/1

7:10 am-10:59 pm

2 stops12h 49m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Best time to book a flight from Lewiston to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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 District of Columbia

What is the cheapest month to book a flight from Lewiston, Idaho to District of Columbia?

Currently, July is the cheapest month in which you can book a flight from Lewiston, Idaho to District of Columbia (average of $302). Flying from Lewiston, Idaho to District of Columbia in April is currently the most expensive (average of $337). 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.

Reviews of airlines servicing District of Columbia

Read through reviews of airlines operating flights from Lewiston to District of Columbia, such as Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,986 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,986 reviews

Delta

8.0

Very good

7,986 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly from for flights from Lewiston to District of Columbia?
Lewiston Nez Perce Rgnl (LWS), located 1.9 mi from the city center, is the airport you fly out of when you book flights from Lewiston to District of Columbia.
Can I find deals for flights from Lewiston to District of Columbia that include hotel bookings?
Yes. In addition to deals on Lewiston to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Lewiston to District of Columbia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lewiston to District of Columbia.
Can I find deals for business class flights from Lewiston to District of Columbia?
Yes. Cheapflights offers flight deals from Lewiston to District of Columbia 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 District of Columbia?
Currently, July is the cheapest month in which you can book a flight from Lewiston, Idaho to District of Columbia (average of $302). Flying from Lewiston, Idaho to District of Columbia in April is currently the most expensive (average of $337). 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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$412+ Cheap flights from Lewiston, ID (LWS) to District of Columbia

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Lewiston to District of Columbia with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Lewiston to District of Columbia

One-way flights from Lewiston to District of ColumbiaSearch for one-way flight options from Lewiston to District of Columbia. Find affordable one-way fares based on user searches. Data last updated August 17, 2025.

Search for one-way flight options from Lewiston to District of Columbia. Find affordable one-way fares based on user searches. Data last updated August 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Lewiston to District of Columbia that are best for you.

Best time to book a flight from Lewiston to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Lewiston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Lewiston to District of Columbia

What is the cheapest month to book a flight from Lewiston, Idaho to District of Columbia?

Reviews of airlines servicing District of Columbia

Read through reviews of airlines operating flights from Lewiston to District of Columbia, such as Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Lewiston to District of Columbia. 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 District of Columbia?

Can I find deals for flights from Lewiston to District of Columbia that include hotel bookings?

How can I find direct flights from Lewiston to District of Columbia?

Can I find deals for business class flights from Lewiston to District of Columbia?

What is the cheapest month to book a flight from Lewiston, Idaho to District of Columbia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Lewiston to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

One-way flights from Lewiston to District of Columbia
Search for one-way flight options from Lewiston to District of Columbia. Find affordable one-way fares based on user searches. Data last updated August 17, 2025.