IDA - IAD

$284 Find Cheap Flights from Idaho 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
$399
Typical prices: $448-$675
United Airlines
Mon 12/3Mon 12/10
IDA - IAD • 1 stop
Cheapest one-way
$284
Typical prices: $254-$407
Alaska Airlines
Mon 11/26
IDA - IAD • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Idaho Falls and Washington, D.C. Dulles Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
October
Cheapest • 18% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $498 (round-trip)
Denver Intl (DEN)
Shortest trip • 7h 24m (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
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Flight Deals

Cheap Flights from Idaho Falls to Washington, D.C. (IDA-IAD)

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

Recent round-trip flight deals from Idaho Falls to Washington, D.C.

Thu, Dec 3 - Thu, Dec 10
United Airlines Logo
2:40 pm - 11:15 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
6h 35m1 stop Denver Intl
United Airlines Logo
8:20 am - 1:37 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
7h 17m1 stop Denver Intl
$399United Airlines
Mon, Jan 11 - Fri, Jan 22
United Airlines Logo
2:30 pm - 11:26 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
6h 56m1 stop Denver Intl
United Airlines Logo
2:11 pm - 9:10 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
8h 59m1 stop Denver Intl
$409United Airlines
Tue, Jan 12 - Sat, Jan 16
Delta Logo
6:59 pm - 10:44 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
13h 45m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
7:05 am - 12:24 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
7h 19m1 stop Salt Lake City
$414Delta
Thu, Dec 24 - Fri, Dec 25
Alaska Airlines Logo
6:00 am - 4:28 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 28m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:05 am - 3:18 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
10h 13m1 stop Seattle/Tacoma Intl
$429Alaska Airlines
Mon, Dec 28 - Fri, Jan 1
United Airlines Logo
4:20 pm - 12:59 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
6h 39m1 stop Denver Intl
United Airlines Logo
6:45 am - 1:28 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
8h 43m1 stop Denver Intl
$473United Airlines
Mon, Jan 11 - Fri, Jan 22
Delta Logo
6:59 pm - 10:44 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
13h 45m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
10:56 am - 10:42 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
13h 46m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$474Delta
Tue, Jan 12 - Sat, Jan 16
Delta Logo
1:10 pm - 11:31 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 21m1 stop Salt Lake City
Delta Logo
7:05 am - 12:24 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
7h 19m1 stop Salt Lake City
$489Delta
Wed, Dec 16 - Mon, Jan 4
United Airlines Logo
4:10 pm - 12:51 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
6h 41m1 stop Denver Intl
United Airlines Logo
6:45 am - 1:28 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
8h 43m1 stop Denver Intl
$517United Airlines
Sat, Dec 5 - Tue, Dec 8
United Airlines Logo
2:40 pm - 11:15 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
6h 35m1 stop Denver Intl
United Airlines Logo
4:21 pm - 8:59 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
6h 38m1 stop Denver Intl
$519United Airlines
Tue, Jan 12 - Sat, Jan 16
American Airlines Logo
1:42 pm - 3:40 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
23h 58m2 stops Dallas/Fort Worth Charlotte Douglas
American Airlines Logo
7:00 am - 11:11 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
18h 11m2 stops Charlotte Douglas Phoenix Sky Harbor Intl
$527American Airlines
Booking Insights

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

Round-trip flights from Idaho Falls to Washington, D.C. Dulles Intl Airport typically range from $448 to $675. The lowest price found in the past 5 days was $399, on United Airlines.

Find deals

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

Low season

October

Cheapest flight

$284
Beat the crowds with an average 56% drop in travelers.
The most popular month to fly with an average 100% increase in travelers.
One-way flight from Idaho Falls to Washington, D.C. Dulles Intl Airport

When to book flights from Idaho Falls to Washington, D.C.

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

Your Idaho 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 Idaho Falls to Washington, D.C. Dulles Intl Airport?

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

  • How long is a flight from Idaho Falls to Washington, D.C. Dulles Intl Airport?

    A nonstop flight from Idaho Falls to Washington, D.C. Dulles Intl Airport takes 00m, covering 1,811 miles.

  • Do I need a passport to fly from Idaho 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.

  • How much should I expect to pay for a Idaho Falls to Washington, D.C. Dulles Intl Airport flight?

    Round-trip flights from Idaho Falls to Washington, D.C. Dulles Intl Airport range from $448 to $675, with an average of $487 over the past 12 months. Anything below $448 counts as a good deal.

  • Have flight prices from Idaho 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 $399 to $3,429. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Idaho Falls to Washington, D.C. Dulles Intl Airport looking right now?

    One-way fares from Idaho Falls to Washington, D.C. Dulles Intl Airport are currently higher than usual. Average one-way flight prices are about $392, which is 27% above the typical average for this route.

  • 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:

    • Hertz
    • Dollar
    • Budget
    • Sixt
    • Thrifty

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

    Flights from Idaho Falls to Washington, D.C. Dulles Intl Airport usually depart from Idaho Falls Fanning Field (IDA) and arrive at Washington, D.C. Dulles Intl (IAD).

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

    One-stop flights from Idaho Falls to Washington, D.C. Dulles Intl Airport most commonly connect through:

    • Denver Intl (DEN) - 49% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 35% of one-stop connections
    • Dallas/Fort Worth (DFW) - 8% of one-stop connections
    • Salt Lake City (SLC) - 8% of one-stop connections

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

    Yes. Flexible dates can save you up to 51% on flights from Idaho Falls to Washington, D.C. Dulles Intl Airport. Thursday is the cheapest departure day at $415 round-trip on average, while Sunday is the most expensive at $844, a difference of $429.

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

  • How much time can I save by choosing a different layover airport from Idaho Falls to Washington, D.C. Dulles Intl Airport?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 7h 24m, compared with 7h 27m via Salt Lake City (SLC) and 8h 15m via Dallas/Fort Worth (DFW).

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

    Washington, D.C. Dulles Intl Airport is 2 hours ahead of Idaho 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 Idaho 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 Thursday departure and avoid flying on Sunday. On this route, Thursday flights average $415, about $429 less than Sunday fares (51% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Idaho Falls to Washington, D.C. Dulles Intl Airport trip for October. Fares historically average $398 round-trip in that month - typically $753 less than the most expensive month, which is February (based on the last 12 months).

More options for your flight from Idaho Falls to Washington, D.C.

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.
Vacations in Washington, D.C.