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IAD - IDA

$166 Find Cheap Flights from Washington, D.C. to Idaho Falls - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$399
Typical prices: $468-$721
Alaska Airlines
Sun 10/28Sun 11/4
IAD - IDA • 1 stop
Cheapest one-way
$166
Typical prices: $264-$475
Multiple Airlines
Sun 12/9
IAD - IDA • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. Dulles Intl Airport and Idaho Falls. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
November
Cheapest • 35% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $551 (round-trip)
Denver Intl (DEN)
Shortest trip • 7h 22m (one-way)
Insights
Insights
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Flight Deals

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

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

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

Sat, Nov 7 - Tue, Nov 10
Alaska Airlines Logo
7:46 am - 3:18 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
9h 32m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:04 am - 4:14 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 10m1 stop Seattle/Tacoma Intl
$399Alaska Airlines
Wed, Oct 28 - Wed, Nov 4
Alaska Airlines Logo
7:02 am - 3:20 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
10h 18m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
1:53 pm - 5:44 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
13h 51m1 stop Seattle/Tacoma Intl
$399Alaska Airlines
Sat, Nov 7 - Mon, Nov 9
United Airlines Logo
8:20 am - 1:28 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
7h 08m1 stop Denver Intl
United Airlines Logo
2:35 pm - 11:15 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
6h 40m1 stop Denver Intl
$399United Airlines
Sat, Nov 7 - Wed, Nov 11
Alaska Airlines Logo
7:46 am - 3:18 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
9h 32m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:04 am - 4:14 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 10m1 stop Seattle/Tacoma Intl
$429Alaska Airlines
Sun, Nov 22 - Fri, Nov 27
Multiple Airlines Logo
1:09 pm - 3:34 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
28h 25m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:06 pm - 5:10 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 04m1 stop Las Vegas Harry Reid Intl
$433Multiple Airlines
Sat, Nov 7 - Mon, Nov 9
Delta Logo
6:13 am - 12:22 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
8h 09m1 stop Salt Lake City
Delta Logo
6:57 pm - 9:09 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
12h 12m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$434Delta
Sat, Nov 7 - Tue, Nov 10
Delta Logo
6:13 am - 12:22 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
8h 09m1 stop Salt Lake City
Delta Logo
6:57 pm - 9:09 amIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
12h 12m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$434Delta
Fri, Oct 23 - Tue, Oct 27
Alaska Airlines Logo
5:33 pm - 3:20 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
23h 47m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:09 am - 4:30 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 21m1 stop Seattle/Tacoma Intl
$459Alaska Airlines
Fri, Jan 8 - Tue, Jan 12
United Airlines Logo
2:25 pm - 9:08 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
8h 43m1 stop Denver Intl
United Airlines Logo
7:00 am - 4:40 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
7h 40m1 stop Denver Intl
$519United Airlines
Mon, Nov 23 - Thu, Nov 26
United Airlines Logo
6:10 am - 1:28 pmIAD  Washington, D.C. Dulles Intl-IDA Idaho Falls Fanning Field
9h 18m1 stop Denver Intl
United Airlines Logo
7:00 am - 5:55 pmIDA  Idaho Falls Fanning Field-IAD Washington, D.C. Dulles Intl
8h 55m1 stop Denver Intl
$519United Airlines
Booking Insights

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

Round-trip flights from Washington, D.C. Dulles Intl Airport to Idaho Falls typically range from $468 to $721. The lowest price found in the past 5 days was $399, on Alaska Airlines.

What's the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Idaho Falls?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Idaho Falls. It’s 16% cheaper than the average day, while Thursday is the most expensive, with prices 37% higher.

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

Low season

February

Cheapest flight

$166
The most popular month to fly with an average 63% increase in travelers.
One-way flight from Washington, D.C. Dulles Intl Airport to Idaho Falls

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

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

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

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

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

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

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport to Idaho Falls?

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

    Round-trip flights from Washington, D.C. Dulles Intl Airport to Idaho Falls range from $468 to $721, with an average of $548 over the past 12 months. Anything below $468 counts as a good deal.

  • Have flight prices from Washington, D.C. Dulles Intl Airport to Idaho Falls 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 $2,114. That means the highest observed fare was about 5x higher than the lowest one.

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

    One-way fares from Washington, D.C. Dulles Intl Airport to Idaho Falls are currently lower than usual. Average one-way flight prices are about $227, which is 39% below the typical average for this route.

  • What car rental options are available at Idaho Falls Fanning Field Airport (IDA)?

    Idaho Falls Fanning Field Airport (IDA) hosts 5 major car rental companies, with daily rates starting from around $34 for economy cars. Top options include:

    • Alamo
    • Hertz
    • Enterprise Rent-A-Car
    • Budget
    • National

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

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

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

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

    • Denver Intl (DEN) - 70% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 16% of one-stop connections
    • Dallas/Fort Worth (DFW) - 10% of one-stop connections
    • Salt Lake City (SLC) - 5% of one-stop connections

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

    Yes. Flexible dates can save you up to 39% on flights from Washington, D.C. Dulles Intl Airport to Idaho Falls. Wednesday is the cheapest departure day at $463 round-trip on average, while Thursday is the most expensive at $755, a difference of $292.

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

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 7h 22m, compared with 8h 01m via Salt Lake City (SLC) and 8h 13m via Dallas/Fort Worth (DFW).

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

    Idaho Falls is 2 hours behind Washington, D.C. Dulles Intl Airport (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Washington, D.C. Dulles Intl Airport to Idaho Falls 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 Thursday. On this route, Wednesday flights average $463, about $292 less than Thursday fares (39% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Washington, D.C. Dulles Intl Airport to Idaho Falls trip for November. Fares historically average $358 round-trip in that month - typically $437 less than the most expensive month, which is May (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Idaho Falls Fanning Field Airport.

    • Tru by Hilton Idaho Falls
    • Quality Inn Idaho Falls
    • Comfort Suites Idaho Falls

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

Complete your trip to Idaho Falls with a hotel stay or car rental

Car rentals in Idaho Falls
Hotels in Idaho Falls
Vacations in Idaho Falls