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IDA - IAD

$119 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-$840
United Airlines
Sun 10/28Sun 11/4
IDA - IAD • 1 stop
Cheapest one-way
$119
Typical prices: $275-$407
Multiple Airlines
Fri 11/9
IDA - IAD • 2 stops
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
May
Cheapest • 21% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $496 (round-trip)
Denver Intl (DEN)
Shortest trip • 7h 15m (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
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.

Wed, Oct 28 - Wed, Nov 4
United Airlines Logo
2:35 pm - 11:15 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
6h 40m1 stop Denver Intl
United Airlines Logo
2:05 pm - 9:09 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
9h 04m1 stop Denver Intl
$399United Airlines
Wed, Oct 28 - Wed, Nov 4
Delta Logo
1:05 pm - 11:35 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 30m1 stop Salt Lake City
Delta Logo
12:20 pm - 10:10 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
11h 50m2 stops Detroit Metropolitan Wayne County Salt Lake City
$404Delta
Thu, Dec 3 - Wed, Dec 9
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
8:22 am - 1:37 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
7h 15m1 stop Denver Intl
$423United Airlines
Tue, Feb 9 - Mon, Feb 15
Delta Logo
6:45 pm - 10:01 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
13h 16m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
7:30 am - 6:14 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
12h 44m2 stops Minneapolis St Paul Salt Lake City
$439Delta
Thu, Dec 3 - Wed, Dec 9
United Airlines Logo
10:40 am - 9:24 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 44m1 stop Denver Intl
United Airlines Logo
8:22 am - 1:37 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
7h 15m1 stop Denver Intl
$467United Airlines
Thu, Dec 3 - Wed, Dec 9
American Airlines Logo
1:41 pm - 11:30 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
7h 49m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 11:02 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
19h 02m2 stops Los Angeles Phoenix Sky Harbor Intl
$468American Airlines
Wed, Oct 28 - Wed, Nov 4
Delta Logo
1:05 pm - 12:42 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
9h 37m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
12:20 pm - 10:10 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
11h 50m2 stops Detroit Metropolitan Wayne County Salt Lake City
$509Delta
Thu, Dec 3 - Wed, Dec 9
American Airlines Logo
1:41 pm - 11:30 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
7h 49m1 stop Dallas/Fort Worth
American Airlines Logo
7:14 am - 5:05 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
11h 51m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
$517American 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
8:22 am - 3:29 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
9h 07m1 stop Denver Intl
$519United Airlines
Tue, Dec 15 - Tue, Jan 5
United Airlines Logo
6:35 am - 5:19 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 44m1 stop Denver Intl
United Airlines Logo
4:15 pm - 9:13 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
6h 58m1 stop Denver Intl
$545United 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 $840. The lowest price found in the past 5 days was $399, on United Airlines.

What’s the cheapest month to fly from Idaho Falls to Washington, D.C. Dulles Intl Airport?

•May is the cheapest month to fly from Idaho Falls to Washington, D.C. Dulles Intl Airport at $415 round-trip.
•February ($1,151) and November ($945) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 177% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

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

Low season

February

Cheapest flight

$119
Beat the crowds with an average 35% drop in travelers.
The most popular month to fly with an average 289% 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 $840, with an average of $528 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 $2,307. That means the highest observed fare was about 6x 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 lower than usual. Average one-way flight prices are about $208, which is 44% below 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 starting from around $24 for economy cars. Top options include:

    • Dollar
    • Budget
    • Hertz
    • 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) - 54% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 37% of one-stop connections
    • Dallas/Fort Worth (DFW) - 5% of one-stop connections
    • Salt Lake City (SLC) - 5% 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 52% on flights from Idaho Falls to Washington, D.C. Dulles Intl Airport. Wednesday is the cheapest departure day at $411 round-trip on average, while Sunday is the most expensive at $844, a difference of $433.

    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 15m, compared with 7h 25m via Dallas/Fort Worth (DFW) and 7h 56m via Salt Lake City (SLC).

  • 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 Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average $411, about $433 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 May. Fares historically average $415 round-trip in that month - typically $736 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.