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

Currently, August is the cheapest month in which you can book a flight from Twin Falls to Washington, D.C. (average of $241). Flying from Twin Falls to Washington, D.C. in March is currently the most expensive (average of $290). 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.

What is the cheapest day to fly from Twin Falls to Washington, D.C.?

Travelers seeking maximum savings on their Twin Falls to Washington, D.C. flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Twin Falls to Washington, D.C.?

Most travelers choose Twin Falls Joslin - Washington, D.C. Dulles Intl, Twin Falls Joslin - Baltimore/Washington or Twin Falls Joslin - Washington, D.C. Reagan-National when deciding on the best route from Twin Falls to Washington, D.C..

What is the cheapest time of day to fly from TWF to WAS?

Unlike in the morning, when flights are generally more expensive, you can save up to 19% on flights from Twin Falls to Washington, D.C. by exploring options for tickets at noon.

What airport do you fly from for flights from Twin Falls to Washington, D.C.?

Most people fly from Twin Falls Joslin (TWF) if they book a flight from Twin Falls to Washington, D.C.. On average, Joslin has 0 outbound flights to Washington, D.C. per day from 0 airlines. Twin Falls Joslin is conveniently located just 5.8 mi from Twin Falls’s city center.

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

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

How can I find direct flights from Twin Falls 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 Twin Falls to Washington, D.C..

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

Yes. Cheapflights offers flight deals from Twin Falls 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.

$546+ Flights from Twin Falls to Washington, D.C.

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Cheap flight deals from Twin Falls to Washington, D.C.

Round-trip from	$546 (Delta)

From Twin Falls Joslin to Washington, D.C. (WAS)

Search Deals

Find flight deals from Twin Falls to Washington, D.C.

Cheapest flights from Twin Falls to Washington, D.C.
Explore the most affordable flight options available from Twin Falls to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Wed 8/203:20 pmTWF - IAD

1 stop6h 12mDelta

Mon 8/257:30 amIAD - TWF

1 stop9h 08mDelta

Deal found 6/11

$546

Wed 8/206:15 amTWF - BWI

2 stops9h 05mDelta

Mon 8/257:15 amBWI - TWF

1 stop9h 23mDelta

Deal found 6/11

$552

Fri 10/176:15 amTWF - DCA

1 stop8h 04mDelta

Tue 10/215:00 pmDCA - TWF

1 stop7h 18mDelta

Deal found 6/11

$681

Best flights from Twin Falls to Washington, D.C.
Discover carefully curated flight deals from Twin Falls to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Wed 8/203:20 pmTWF - IAD

1 stop6h 12mDelta

Mon 8/257:30 amIAD - TWF

1 stop9h 08mDelta

Deal found 6/11

$546

Wed 8/206:15 amTWF - BWI

2 stops9h 05mDelta

Mon 8/257:15 amBWI - TWF

1 stop9h 23mDelta

Deal found 6/11

$552

Fri 10/176:15 amTWF - DCA

1 stop8h 04mDelta

Tue 10/215:00 pmDCA - TWF

1 stop7h 18mDelta

Deal found 6/11

$681

Last-minute flights from Twin Falls to Washington, D.C.
Discover last-minute flight deals from Twin Falls to Washington, D.C.. Data last updated June 12, 2025 and is based on user searches.

Fri 7/43:20 pmTWF - IAD

1 stop6h 23mDelta

Sun 7/67:35 amIAD - TWF

1 stop9h 04mDelta

Deal found 6/9

$616

Cheapflights Fare Finder

Use the filters below to find and compare flights from Twin Falls to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Wed 8/20

3:20 pm-11:32 pm

1 stop6h 12m

Washington, D.C. Dulles Intl

Mon 8/25

7:30 am-2:38 pm

1 stop9h 08m

$546

Twin FallsBaltimore

TWF - BWI

TWFBWI

Twin Falls Joslin

Wed 8/20

6:15 am-5:20 pm

2 stops9h 05m

Baltimore/Washington

Mon 8/25

7:15 am-2:38 pm

1 stop9h 23m

$552

Twin FallsWashington, D.C.

TWF - DCA

TWFDCA

Twin Falls Joslin

Fri 10/17

6:15 am-4:19 pm

1 stop8h 04m

Washington, D.C. Reagan-National

Tue 10/21

5:00 pm-10:18 pm

1 stop7h 18m

$681

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Twin Falls to Washington, D.C.

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

Rainfall in Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. 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 Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

If weather is an important factor for your trip to Washington, D.C., 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).

Reviews of airlines servicing Washington, D.C.

Delta

8.0

Very good

7,946 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

7,946 reviews

Delta

8.0

Very good

7,946 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 Twin Falls to Washington, D.C.?
Most people fly from Twin Falls Joslin (TWF) if they book a flight from Twin Falls to Washington, D.C.. On average, Joslin has 0 outbound flights to Washington, D.C. per day from 0 airlines. Twin Falls Joslin is conveniently located just 5.8 mi from Twin Falls’s city center.
What are the most popular routes from Twin Falls to Washington, D.C.?
Most travelers choose Twin Falls Joslin - Washington, D.C. Dulles Intl, Twin Falls Joslin - Baltimore/Washington or Twin Falls Joslin - Washington, D.C. Reagan-National when deciding on the best route from Twin Falls to Washington, D.C..
Can I find deals for flights from Twin Falls to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Twin Falls to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Twin Falls 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 Twin Falls to Washington, D.C..
Can I find deals for business class flights from Twin Falls to Washington, D.C.?
Yes. Cheapflights offers flight deals from Twin Falls 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 Twin Falls to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Twin Falls to Washington, D.C. (average of $241). Flying from Twin Falls to Washington, D.C. in March is currently the most expensive (average of $290). 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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$546+ Cheap flights from Twin Falls (TWF) to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Twin Falls to Washington, D.C. with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Twin Falls to Washington, D.C.

Round-trip from

Find flight deals from Twin Falls to Washington, D.C.

Cheapest flights from Twin Falls to Washington, D.C.Explore the most affordable flight options available from Twin Falls to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from Twin Falls to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Twin Falls to Washington, D.C. that are best for you.

Best time to book a flight from Twin Falls to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Twin Falls with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Twin Falls to Washington, D.C.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Twin Falls 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 Twin Falls to Washington, D.C.?

What are the most popular routes from Twin Falls to Washington, D.C.?

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

How can I find direct flights from Twin Falls to Washington, D.C.?

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

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

Traveling to a place near Twin Falls?

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Cheapest flights from Twin Falls to Washington, D.C.
Explore the most affordable flight options available from Twin Falls to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.