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Cheap flights from Twin Falls to Washington, D.C. from $422

This is the cheapest one-way 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 3/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:45 am - 10:59 pm
TWF
-
IAD
9h 14m
2 stops
Delta Logo
7:20 am - 2:34 pm
IAD
-
TWF
9h 14m
1 stop
$528Delta
Thu, Mar 12 - Sun, Mar 15
Delta Logo
3:25 pm - 11:40 pm
TWF
-
IAD
6h 15m
1 stop
Delta Logo
7:20 am - 2:34 pm
IAD
-
TWF
9h 14m
1 stop
$588Delta
Thu, Mar 12 - Sun, Mar 15
Delta Logo
3:44 pm - 11:46 pm
TWF
-
IAD
6h 02m
1 stop
Delta Logo
7:05 am - 2:59 pm
IAD
-
TWF
9h 54m
1 stop
$607Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
3:44 pm - 11:46 pm
TWF
-
IAD
6h 02m
1 stop
Delta Logo
7:05 am - 2:59 pm
IAD
-
TWF
9h 54m
1 stop
$642Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
6:00 am - 6:37 pm
TWF
-
IAD
10h 37m
2 stops
Delta Logo
7:05 am - 2:59 pm
IAD
-
TWF
9h 54m
1 stop
$874Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
3:44 pm - 11:46 pm
TWF
-
IAD
6h 02m
1 stop
Delta Logo
6:00 am - 2:59 pm
IAD
-
TWF
10h 59m
2 stops
$903Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
6:00 am - 6:37 pm
TWF
-
IAD
10h 37m
2 stops
Delta Logo
7:05 am - 2:59 pm
IAD
-
TWF
9h 54m
1 stop
$909Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
11:45 am - 10:59 pm
TWF
-
IAD
9h 14m
2 stops
Delta Logo
6:01 am - 2:34 pm
IAD
-
TWF
10h 33m
2 stops
$958Delta
Thu, Mar 12 - Sun, Mar 15
Delta Logo
6:00 am - 6:37 pm
TWF
-
IAD
10h 37m
2 stops
Delta Logo
6:00 am - 2:59 pm
IAD
-
TWF
10h 59m
2 stops
$1,079Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
6:00 am - 6:37 pm
TWF
-
IAD
10h 37m
2 stops
Delta Logo
6:00 am - 2:59 pm
IAD
-
TWF
10h 59m
2 stops
$1,179Delta
Wed, Feb 25 - Wed, Mar 4

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
Mar 12
TWF11:45 amTwin Falls Joslin
9h 14m
2 stops
IAD10:59 pmWashington, D.C. Dulles Intl
Mar 15
IAD7:20 amWashington, D.C. Dulles Intl
9h 14m
1 stop
TWF2:34 pmTwin Falls Joslin
$528
Delta
Mar 12
TWF3:25 pmTwin Falls Joslin
6h 15m
1 stop
IAD11:40 pmWashington, D.C. Dulles Intl
Mar 15
IAD7:20 amWashington, D.C. Dulles Intl
9h 14m
1 stop
TWF2:34 pmTwin Falls Joslin
$588
Delta
Feb 25
TWF3:44 pmTwin Falls Joslin
6h 02m
1 stop
IAD11:46 pmWashington, D.C. Dulles Intl
Mar 4
IAD7:05 amWashington, D.C. Dulles Intl
9h 54m
1 stop
TWF2:59 pmTwin Falls Joslin
$607

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 February 18, 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

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Thu 3/12

11:45 am-10:59 pm

2 stops9h 14m

Washington, D.C. Dulles Intl

Sun 3/15

7:20 am-2:34 pm

1 stop9h 14m

$528

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Thu 3/12

3:25 pm-11:40 pm

1 stop6h 15m

Washington, D.C. Dulles Intl

Sun 3/15

7:20 am-2:34 pm

1 stop9h 14m

$588

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Wed 2/25

3:44 pm-11:46 pm

1 stop6h 02m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-2:59 pm

1 stop9h 54m

$607

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Wed 2/25

3:44 pm-11:46 pm

1 stop6h 02m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-2:59 pm

1 stop9h 54m

$642

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Wed 2/25

6:00 am-6:37 pm

2 stops10h 37m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-2:59 pm

1 stop9h 54m

$874

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Wed 2/25

3:44 pm-11:46 pm

1 stop6h 02m

Washington, D.C. Dulles Intl

Wed 3/4

6:00 am-2:59 pm

2 stops10h 59m

$903

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Wed 2/25

6:00 am-6:37 pm

2 stops10h 37m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-2:59 pm

1 stop9h 54m

$909

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Thu 3/12

11:45 am-10:59 pm

2 stops9h 14m

Washington, D.C. Dulles Intl

Sun 3/15

6:01 am-2:34 pm

2 stops10h 33m

$958

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Wed 2/25

6:00 am-6:37 pm

2 stops10h 37m

Washington, D.C. Dulles Intl

Wed 3/4

6:00 am-2:59 pm

2 stops10h 59m

$1,079

Twin FallsWashington, D.C.

TWF - IAD

TWFIAD

Twin Falls Joslin

Wed 2/25

6:00 am-6:37 pm

2 stops10h 37m

Washington, D.C. Dulles Intl

Wed 3/4

6:00 am-2:59 pm

2 stops10h 59m

$1,179

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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 02m

Direct flights

None
The fastest flight from Twin Falls to Washington, D.C. Dulles Intl Airport takes 6h 02m
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

  • 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 02m 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
Colonial Beach
Tysons
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Sterling
Fairfax
Linthicum Heights

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.

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