IDA - IAD

$255 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
American Airlines
Mon 12/3Sun 12/9
IDA - IAD • 1 stop
Cheapest one-way
$255
Typical prices: $275-$407
United Airlines
Mon 12/17
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
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.

Thu, Dec 3 - Wed, Dec 9
American Airlines Logo
8:00 am - 6:19 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 19m1 stop Dallas/Fort Worth
American Airlines Logo
7:14 am - 1:05 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
7h 51m1 stop Dallas/Fort Worth
$399American Airlines
Mon, Nov 16 - Thu, Nov 19
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
6:10 am - 1:28 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
9h 18m1 stop Denver Intl
$423United Airlines
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
10:35 am - 7:30 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
6h 55m1 stop Denver Intl
United Airlines Logo
6:10 am - 1:28 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
9h 18m1 stop Denver Intl
$453United Airlines
Mon, Dec 21 - Wed, Dec 30
United Airlines Logo
2:37 pm - 12:59 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 22m1 stop Denver Intl
United Airlines Logo
2:25 pm - 9:19 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
8h 54m1 stop Denver Intl
$454United Airlines
Mon, Dec 21 - Wed, Dec 30
United Airlines Logo
2:37 pm - 11:21 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
6h 44m1 stop Denver Intl
United Airlines Logo
2:25 pm - 9:19 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
8h 54m1 stop Denver Intl
$458United Airlines
Thu, Dec 10 - Tue, Jan 5
American Airlines Logo
8:00 am - 6:19 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 19m1 stop Dallas/Fort Worth
American Airlines Logo
7:20 am - 1:13 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
7h 53m1 stop Dallas/Fort Worth
$484American Airlines
Wed, Dec 9 - Tue, Jan 5
American Airlines Logo
1:35 pm - 11:29 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
7h 54m1 stop Dallas/Fort Worth
American Airlines Logo
7:20 am - 1:13 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
7h 53m1 stop Dallas/Fort Worth
$484American Airlines
Thu, Dec 10 - Tue, Jan 5
American Airlines Logo
1:35 pm - 11:29 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
7h 54m1 stop Dallas/Fort Worth
American Airlines Logo
9:11 am - 5:20 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
10h 09m2 stops Charlotte Douglas Phoenix Sky Harbor Intl
$517American Airlines
Wed, Dec 9 - Tue, Jan 5
American Airlines Logo
1:35 pm - 11:29 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
7h 54m1 stop Dallas/Fort Worth
American Airlines Logo
9:11 am - 5:20 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
10h 09m2 stops Charlotte Douglas Phoenix Sky Harbor Intl
$517American Airlines
Sat, Dec 5 - Tue, Dec 8
United Airlines Logo
10:40 am - 7:30 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
6h 50m1 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
$519United 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 from Idaho Falls to Washington, D.C. Dulles Intl Airport 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 start at $399. Prices are below average for this route right now, with typical round-trip fares ranging from $448 to $840. The lowest price found in the past 5 days was $399 on American Airlines.

What is 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

$255
Best time to beat the crowds but there is an average 118% increase in price.
Most popular time to fly and prices are also 13% lower on average.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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 0h 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 $2,502. 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 higher than usual. Average one-way flight prices are about $461, which is 26% 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 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

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 52% on the Idaho Falls to Washington, D.C. Dulles Intl Airport route. 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 can be flexible, aim for a Wednesday departure instead of Sunday. On this route, Wednesday flights average $411 - about $433 less than Sunday (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.
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