Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Twin Falls to Washington, D.C. from $506

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Twin Falls to Washington, D.C. departing on 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Twin Falls to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
3:26 pm - 11:51 pm
TWF
-
IAD
6h 25m
1 stop
Delta Logo
7:15 am - 12:18 pm
IAD
-
TWF
7h 03m
1 stop
$506Delta
Thu, Sep 24 - Tue, Sep 29
Delta Logo
11:37 am - 12:10 am
TWF
-
IAD
10h 33m
2 stops
Delta Logo
7:15 am - 12:18 pm
IAD
-
TWF
7h 03m
1 stop
$548Delta
Thu, Sep 24 - Tue, Sep 29
Delta Logo
11:37 am - 12:10 am
TWF
-
IAD
10h 33m
2 stops
Delta Logo
10:05 am - 10:19 pm
IAD
-
TWF
14h 14m
2 stops
$639Delta
Thu, Sep 24 - Tue, Sep 29
Delta Logo
3:25 pm - 11:32 pm
TWF
-
IAD
6h 07m
1 stop
Delta Logo
7:15 am - 2:34 pm
IAD
-
TWF
9h 19m
1 stop
$962Delta
Sat, Jun 6 - Mon, Jun 8
Delta Logo
11:35 am - 12:51 am
TWF
-
IAD
11h 16m
2 stops
Delta Logo
7:15 am - 2:34 pm
IAD
-
TWF
9h 19m
1 stop
$968Delta
Sat, Jun 6 - Mon, Jun 8
Delta Logo
11:35 am - 7:45 pm
TWF
-
IAD
6h 10m
1 stop
Delta Logo
7:15 am - 2:34 pm
IAD
-
TWF
9h 19m
1 stop
$988Delta
Sat, Jul 4 - Mon, Jul 6
Delta Logo
11:35 am - 12:51 am
TWF
-
IAD
11h 16m
2 stops
Delta Logo
6:00 am - 2:34 pm
IAD
-
TWF
10h 34m
2 stops
$1,033Delta
Sat, Jun 6 - Mon, Jun 8
Delta Logo
11:35 am - 12:25 am
TWF
-
IAD
10h 50m
2 stops
Delta Logo
7:15 am - 2:34 pm
IAD
-
TWF
9h 19m
1 stop
$1,182Delta
Sat, Jul 4 - Mon, Jul 6
Delta Logo
11:35 am - 12:25 am
TWF
-
IAD
10h 50m
2 stops
Delta Logo
6:00 am - 2:34 pm
IAD
-
TWF
10h 34m
2 stops
$1,457Delta
Sat, Jul 4 - Mon, Jul 6

Delta flights from Twin Falls to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Twin Falls to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Sep 24
TWF3:26 pmTwin Falls Joslin
6h 25m
1 stop
IAD11:51 pmWashington, D.C. Dulles Intl
Sep 29
IAD7:15 amWashington, D.C. Dulles Intl
7h 03m
1 stop
TWF12:18 pmTwin Falls Joslin
$506
Delta
Sep 24
TWF11:37 amTwin Falls Joslin
10h 33m
2 stops
IAD12:10 amWashington, D.C. Dulles Intl
Sep 29
IAD7:15 amWashington, D.C. Dulles Intl
7h 03m
1 stop
TWF12:18 pmTwin Falls Joslin
$548
Delta
Sep 24
TWF11:37 amTwin Falls Joslin
10h 33m
2 stops
IAD12:10 amWashington, D.C. Dulles Intl
Sep 29
IAD10:05 amWashington, D.C. Dulles Intl
14h 14m
2 stops
TWF10:19 pmTwin Falls Joslin
$639

momondo Fare Finder

 
Customize your flight search to find flights from Twin Falls to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated May 26, 2026.
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

Cheapest round-trip
Quickest round-trip

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Thu 9/24

3:26 pm-11:51 pm

1 stop6h 25m

Washington, D.C. Dulles Intl

Tue 9/29

7:15 am-12:18 pm

1 stop7h 03m

$506

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Thu 9/24

11:37 am-12:10 am

2 stops10h 33m

Washington, D.C. Dulles Intl

Tue 9/29

7:15 am-12:18 pm

1 stop7h 03m

$548

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Thu 9/24

11:37 am-12:10 am

2 stops10h 33m

Washington, D.C. Dulles Intl

Tue 9/29

10:05 am-10:19 pm

2 stops14h 14m

$639

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Sat 6/6

3:25 pm-11:32 pm

1 stop6h 07m

Washington, D.C. Dulles Intl

Mon 6/8

7:15 am-2:34 pm

1 stop9h 19m

$962

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Sat 6/6

11:35 am-12:51 am

2 stops11h 16m

Washington, D.C. Dulles Intl

Mon 6/8

7:15 am-2:34 pm

1 stop9h 19m

$968

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Sat 7/4

11:35 am-7:45 pm

1 stop6h 10m

Washington, D.C. Dulles Intl

Mon 7/6

7:15 am-2:34 pm

1 stop9h 19m

$988

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Sat 6/6

11:35 am-12:51 am

2 stops11h 16m

Washington, D.C. Dulles Intl

Mon 6/8

6:00 am-2:34 pm

2 stops10h 34m

$1,033

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Sat 7/4

11:35 am-12:25 am

2 stops10h 50m

Washington, D.C. Dulles Intl

Mon 7/6

7:15 am-2:34 pm

1 stop9h 19m

$1,182

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Sat 7/4

11:35 am-12:25 am

2 stops10h 50m

Washington, D.C. Dulles Intl

Mon 7/6

6:00 am-2:34 pm

2 stops10h 34m

$1,457
Cheapest one-way
Quickest one-way

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Sat 6/6

3:25 pm-11:32 pm

1 stop6h 07m

$552

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Twin Falls to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Twin Falls Joslin to Washington, D.C. Dulles Intl?

Delta is the most popular carrier operating from Twin Falls Joslin to Washington, D.C. Dulles Intl

When to book flights from Twin Falls to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Twin Falls to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Twin Falls to Washington, D.C. Dulles Intl Airport (TWF to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Twin Falls to Washington, D.C. Dulles Intl Airport

Fastest flight time

6h 07m

Direct flights

None
The fastest flight from Twin Falls to Washington, D.C. Dulles Intl Airport takes 6h 07m
There are no direct flights from Twin Falls to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Twin Falls to Washington, D.C. Dulles Intl Airport.
Search flight deals

Frequently asked questions about flying from Twin Falls to Washington, D.C. Dulles Intl Airport

  • How far is Twin Falls Joslin to Washington, D.C. Dulles Intl by plane?

    Washington, D.C. Dulles Intl is 1936.2 mi away from Twin Falls Joslin. Typically, this will take 6h 07m by plane in normal conditions.

  • When did momondo last update prices for flights from Twin Falls Joslin Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Twin Falls Joslin Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Twin Falls Joslin Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Twin Falls Joslin Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Laurel
Gaithersburg
Colonial Beach
Fredericksburg
Silver Spring
Rockville
Towson
Manassas
Sterling
Linthicum Heights
Tysons
Springfield
Bethesda

Why use momondo?

Why should I use momondo to find a flight deal from Twin Falls to Washington, D.C.?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Twin Falls to Washington, D.C.. momondo saves you time and could save you money on your trip.

Can I find flights from Twin Falls to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. from Twin Falls which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Twin Falls to Washington, D.C.?

momondo helps you find the best flight between Twin Falls and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Twin Falls to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Twin Falls to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 6/25
Thu 7/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.