How long is the flight from Twin Falls to Washington, D.C. Dulles Intl Airport?

Delta can get you from Twin Falls to Washington, D.C. Dulles Intl Airport in just under 6h 06m. Your travel time can differ by up to . There are 1938 mi between Twin Falls and Washington, D.C. Dulles Intl Airport.

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

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 TWF to IAD?

When flying from Twin Falls to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Twin Falls-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Twin Falls-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Twin Falls-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Twin Falls-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Twin Falls-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

For a flight from Twin Falls to Washington, D.C. Dulles Intl, you will be flying from Joslin. Twin Falls Joslin (TWF) is just 5.8 mi from the center of the city. Joslin is the only Twin Falls airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 0 airlines have flights to Washington, D.C. Dulles Intl from Twin Falls Joslin on a regular basis.

Can I find deals for flights from Twin Falls to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Twin Falls to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Twin Falls to Dulles Intl.

Can I find deals for business class flights from Twin Falls to Dulles Intl?

Yes. Cheapflights offers flight deals from Twin Falls to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$456+ Flights from Twin Falls to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Twin Falls to Dulles Intl

Best flights from Twin Falls to Dulles Intl
Discover carefully curated flight deals from Twin Falls to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Wed 2/253:40 pmTWF - IAD

1 stop6h 06mDelta

Wed 3/47:05 amIAD - TWF

1 stop9h 54mDelta

Deal found 12/15

$456

Thu 1/16:00 amTWF - IAD

2 stops9h 38mDelta

Mon 1/57:05 amIAD - TWF

1 stop9h 55mDelta

Deal found 12/17

$1,279

Last-minute flights from Twin Falls to Dulles Intl
Discover last-minute flight deals from Twin Falls to Dulles Intl. Data last updated December 18, 2025 and is based on user searches.

Thu 1/16:00 amTWF - IAD

2 stops9h 38mDelta

Mon 1/57:05 amIAD - TWF

1 stop9h 55mDelta

Deal found 12/17

$1,279

Find flight deals from Twin Falls to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 1 star
Round-trip from	$456 (Delta)

Provider with most accurate pricing for Twin Falls Joslin-Washington, D.C. Dulles Intl flight deals.

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Provider most trusted by Cheapflights users for Twin Falls Joslin-Washington, D.C. Dulles Intl flights.

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From Twin Falls Joslin to Washington, D.C. Dulles Intl

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

Fly from

Fly to

Route

Depart

Return

Price

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Wed 2/25

3:40 pm-11:46 pm

1 stop6h 06m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-2:59 pm

1 stop9h 54m

$456

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Thu 1/1

6:00 am-5:38 pm

2 stops9h 38m

Washington, D.C. Dulles Intl

Mon 1/5

7:05 am-3:00 pm

1 stop9h 55m

$1,279

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Most accurate provider: When it comes to deals on Twin Falls-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Twin Falls-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Twin Falls-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Twin Falls-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Twin Falls-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Twin Falls to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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.

Related info for your journey

What airport do you fly from for flights from Twin Falls to Washington, D.C. Dulles Intl?
For a flight from Twin Falls to Washington, D.C. Dulles Intl, you will be flying from Joslin. Twin Falls Joslin (TWF) is just 5.8 mi from the center of the city. Joslin is the only Twin Falls airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 0 airlines have flights to Washington, D.C. Dulles Intl from Twin Falls Joslin on a regular basis.
How long is the flight from Twin Falls to Washington, D.C. Dulles Intl Airport?
Delta can get you from Twin Falls to Washington, D.C. Dulles Intl Airport in just under 6h 06m. Your travel time can differ by up to . There are 1938 mi between Twin Falls and Washington, D.C. Dulles Intl Airport.
Can I find deals for flights from Twin Falls to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Twin Falls to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Twin Falls to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Twin Falls to Dulles Intl.
Can I find deals for business class flights from Twin Falls to Dulles Intl?
Yes. Cheapflights offers flight deals from Twin Falls to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$456+ Cheap flights from Twin Falls (TWF) to Dulles Intl (IAD)

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Twin Falls to Dulles Intl with Cheapflights

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Cheap flight deals from Twin Falls to Dulles Intl

Best flights from Twin Falls to Dulles IntlDiscover carefully curated flight deals from Twin Falls to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Discover carefully curated flight deals from Twin Falls to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Find flight deals from Twin Falls to Dulles Intl

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

Best time to book a flight from Twin Falls to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Twin Falls with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Twin Falls to Dulles Intl. 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. Dulles Intl?

How long is the flight from Twin Falls to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Twin Falls to Dulles Intl that include hotel bookings?

How can I find direct flights from Twin Falls to Dulles Intl?

Can I find deals for business class flights from Twin Falls to Dulles Intl?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Best flights from Twin Falls to Dulles Intl
Discover carefully curated flight deals from Twin Falls to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.