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Washington, D.C.

$456+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
TWF — WAS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Twin Falls to Washington, D.C.

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 December 18, 2025.

This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/253:40 pmTWF - IAD
1 stop6h 06mDelta
Wed 3/47:05 amIAD - TWF
1 stop9h 54mDelta
Deal found 12/15$456
This Delta deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/253:40 pmTWF - BWI
1 stop6h 04mDelta
Wed 3/47:05 amBWI - TWF
1 stop9h 54mDelta
Deal found 12/15$507
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/16:00 amTWF - DCA
1 stop8h 01mDelta
Mon 1/55:10 pmDCA - TWF
1 stop7h 39mDelta
Deal found 12/17$848
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/16:00 amTWF - BWI
2 stops9h 51mDelta
Mon 1/57:00 amBWI - TWF
1 stop10h 00mDelta
Deal found 12/17$1,024
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Twin Falls (TWF) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$456
(Delta)
Provider with most accurate pricing for Twin Falls Joslin-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Twin Falls Joslin-Washington, D.C. (WAS) flights.
Search Deals
From Twin Falls Joslin to Washington, D.C. (WAS)
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Twin Falls to Washington, D.C. 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, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Twin Falls to Washington, D.C. that are best for you.

Fly from

Twin Falls

Fly to

Washington, D.C.

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 FallsBaltimore

TWF - BWI

TWFBWI

Twin Falls Joslin

Wed 2/25

3:40 pm-11:44 pm

1 stop6h 04m

Baltimore/Washington

Wed 3/4

7:05 am-2:59 pm

1 stop9h 54m

$507

Twin FallsWashington, D.C.

TWF - DCA

TWFDCA

Twin Falls Joslin

Thu 1/1

6:00 am-4:01 pm

1 stop8h 01m

Washington, D.C. Reagan-National

Mon 1/5

5:10 pm-10:49 pm

1 stop7h 39m

$848

Twin FallsBaltimore

TWF - BWI

TWFBWI

Twin Falls Joslin

Thu 1/1

6:00 am-5:51 pm

2 stops9h 51m

Baltimore/Washington

Mon 1/5

7:00 am-3:00 pm

1 stop10h 00m

$1,024

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

Compare providers for flights from Twin Falls to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Twin Falls to Washington, D.C. in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Twin Falls-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Twin Falls-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Twin Falls-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Twin Falls-Washington, D.C. flights, Cheapflights users trust eDreams the most. eDreams 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. 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 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.
No data available for this route at this time. Please check back soon.

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.?

    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.

  • How long is the flight from Twin Falls to Washington, D.C.?

    Airlines like Delta fly from Twin Falls to Washington, D.C. in about 6h 06m. The time it takes to get you to your destination can typically vary by up to . There are 1938 mi between Twin Falls and Washington, D.C..

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

    Most travelers choose Twin Falls Joslin - Baltimore/Washington, Twin Falls Joslin - Washington, D.C. Dulles Intl 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.

See more FAQs

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