TWF - IAD

$486 Find Cheap Flights from Twin Falls to Washington Dulles Airport - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$486
Typical prices: $399-$504
Delta
Thu 12/6Sat 12/8
TWF - IAD • 2 stops
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
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Booking Insights
Flight Deals

Cheap Flights from Twin Falls to Dulles Intl (TWF-IAD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Twin Falls to Dulles Intl

Sun, Dec 6 - Tue, Dec 8
Delta Logo
1:17 pm - 12:41 amTWF  Twin Falls Joslin-IAD Washington, D.C. Dulles Intl
9h 24m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 12:25 pmIAD  Washington, D.C. Dulles Intl-TWF Twin Falls Joslin
7h 25m1 stop Salt Lake City
$486Delta
Sun, Dec 6 - Tue, Dec 8
Delta Logo
1:17 pm - 12:41 amTWF  Twin Falls Joslin-IAD Washington, D.C. Dulles Intl
9h 24m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
3:00 pm - 10:26 pmIAD  Washington, D.C. Dulles Intl-TWF Twin Falls Joslin
9h 26m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$639Delta
Sun, Dec 6 - Tue, Dec 8
Delta Logo
1:17 pm - 11:36 pmTWF  Twin Falls Joslin-IAD Washington, D.C. Dulles Intl
8h 19m2 stops Salt Lake City Minneapolis St Paul
Delta Logo
7:00 am - 12:25 pmIAD  Washington, D.C. Dulles Intl-TWF Twin Falls Joslin
7h 25m1 stop Salt Lake City
$855Delta
Sun, Dec 6 - Tue, Dec 8
Delta Logo
1:17 pm - 12:41 amTWF  Twin Falls Joslin-IAD Washington, D.C. Dulles Intl
9h 24m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
10:11 am - 10:26 pmIAD  Washington, D.C. Dulles Intl-TWF Twin Falls Joslin
14h 15m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$860Delta
Sun, Dec 6 - Tue, Dec 8
Delta Logo
1:17 pm - 11:47 pmTWF  Twin Falls Joslin-IAD Washington, D.C. Dulles Intl
8h 30m1 stop Salt Lake City
Delta Logo
7:00 am - 12:25 pmIAD  Washington, D.C. Dulles Intl-TWF Twin Falls Joslin
7h 25m1 stop Salt Lake City
$999Delta
Sun, Dec 6 - Tue, Dec 8
Delta Logo
1:17 pm - 11:47 pmTWF  Twin Falls Joslin-IAD Washington, D.C. Dulles Intl
8h 30m1 stop Salt Lake City
Delta Logo
7:00 am - 12:25 pmIAD  Washington, D.C. Dulles Intl-TWF Twin Falls Joslin
7h 25m1 stop Salt Lake City
$1,000Delta
Sun, Dec 6 - Thu, Dec 10
Delta Logo
1:17 pm - 12:41 amTWF  Twin Falls Joslin-IAD Washington, D.C. Dulles Intl
9h 24m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 12:25 pmIAD  Washington, D.C. Dulles Intl-TWF Twin Falls Joslin
7h 25m1 stop Salt Lake City
$1,114Delta
Sun, Dec 6 - Thu, Dec 10
Delta Logo
1:17 pm - 12:41 amTWF  Twin Falls Joslin-IAD Washington, D.C. Dulles Intl
9h 24m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
12:35 pm - 10:26 pmIAD  Washington, D.C. Dulles Intl-TWF Twin Falls Joslin
11h 51m2 stops New York John F Kennedy Intl Salt Lake City
$1,119Delta
Mon, Dec 21 - Thu, Dec 31
Delta Logo
6:16 am - 7:09 pmTWF  Twin Falls Joslin-IAD Washington, D.C. Dulles Intl
10h 53m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 12:18 pmIAD  Washington, D.C. Dulles Intl-TWF Twin Falls Joslin
7h 18m1 stop Salt Lake City
$1,174Delta
Mon, Dec 21 - Thu, Dec 31
Delta Logo
6:16 am - 7:09 pmTWF  Twin Falls Joslin-IAD Washington, D.C. Dulles Intl
10h 53m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 12:18 pmIAD  Washington, D.C. Dulles Intl-TWF Twin Falls Joslin
7h 18m1 stop Salt Lake City
$1,194Delta
Booking Insights

Price, demand and travel trends for Twin Falls to Washington, D.C. Dulles Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Twin Falls to Washington, D.C. Dulles Intl Airport?

Round-trip flights from Twin Falls to Washington, D.C. Dulles Intl Airport typically range from $399 to $504. The lowest price found in the past 5 days was $486, on Delta.

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Key details for Twin Falls to Washington, D.C. Dulles Intl Airport flights

Cheapest flight

$486
Round-trip flight from Twin Falls to Washington, D.C. Dulles Intl Airport

When to book flights from Twin Falls to Dulles Intl

Are your dates flexible? Find out the best times to travel from Twin Falls to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Twin Falls to Washington, D.C. Dulles Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Twin Falls to Washington, D.C. Dulles Intl Airport?

    Only Economy Class is available on flights from Twin Falls to Washington, D.C. Dulles Intl Airport.

  • Do I need a passport to fly from Twin Falls to Washington, D.C. Dulles Intl Airport?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • Have flight prices from Twin Falls to Washington, D.C. Dulles Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $486 to $1,699. That means the highest observed fare was about 3x higher than the lowest one.

  • What car rental options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates averaging $70 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

  • Which airports can I use when flying from Twin Falls to Washington, D.C. Dulles Intl Airport?

    Flights from Twin Falls to Washington, D.C. Dulles Intl Airport usually depart from Twin Falls Joslin (TWF) and arrive at Washington, D.C. Dulles Intl (IAD).

  • Which airports do connecting flights from Twin Falls to Washington, D.C. Dulles Intl Airport pass through?

    Most connecting flights from Twin Falls to Washington, D.C. Dulles Intl Airport pass through Salt Lake City (SLC), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Twin Falls to Washington, D.C. Dulles Intl Airport?

    Yes. Flexible dates can save you up to 21% on flights from Twin Falls to Washington, D.C. Dulles Intl Airport. Wednesday is the cheapest departure day at $399 round-trip on average, while Tuesday is the most expensive at $504, a difference of $105.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Twin Falls and Washington, D.C. Dulles Intl Airport?

    Washington, D.C. Dulles Intl Airport is 2 hours ahead of Twin Falls (Eastern Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

Your guide to booking Twin Falls to Washington, D.C. Dulles Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Tuesday. On this route, Wednesday flights average $399, about $105 less than Tuesday fares (21% savings) based on the last 12 months.

More options for your flight from Twin Falls to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car rental

Car rentals in Washington, D.C.
Hotels in Washington, D.C.
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