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$139+ Cheap flights from Dulles Intl (IAD) to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BOI
dic. 23 — dic. 301
lun. 12/23
lun. 12/30
1 adult, Economy
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Cheap flight deals from Dulles Intl to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Idaho (USID). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated diciembre 18, 2024.

Round-trip from

$278
(Delta)

One-way from

$139
(United Airlines)
From Washington, D.C. Dulles Intl to Idaho
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One-way flight from Washington, D.C. Dulles Intl to Idaho
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Find flight deals from Dulles Intl to Idaho

Cheapest flights from Dulles Intl to Idaho
Explore the most affordable flight options available from Dulles Intl to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/315:22 pmIAD - BOI
1 stop7h 27mUnited Airlines
mar. 1/75:00 amBOI - IAD
2 stops13h 55mUnited Airlines
Deal found 12/17$602
This United deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2512:35 pmIAD - LWS
1 stop7h 39mUnited Airlines
lun. 1/65:15 amLWS - IAD
1 stop27h 08mUnited Airlines
Deal found 12/17$702
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/258:25 amIAD - JAC
1 stop8h 58mUnited Airlines
lun. 12/306:05 pmJAC - IAD
1 stop15h 18mUnited Airlines
Deal found 12/17$755
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/315:50 pmIAD - GEG
1 stop9h 02mUnited Airlines
mié. 1/16:25 pmGEG - IAD
1 stop7h 50mUnited Airlines
Deal found 12/16$766
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/306:30 amIAD - SUN
1 stop9h 02mUnited Airlines
lun. 1/62:14 pmSUN - IAD
2 stops12h 54mUnited Airlines
Deal found 12/16$791
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/267:05 amIAD - PIH
1 stop7h 29mDelta
lun. 12/301:22 pmPIH - IAD
1 stop7h 57mDelta
Deal found 12/17$798
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/307:05 amIAD - GEG
1 stop8h 50mDelta
vie. 1/37:20 pmGEG - IAD
1 stop7h 50mDelta
Deal found 12/16$808
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/257:19 amIAD - BOI
1 stop7h 55mDelta
jue. 12/262:35 pmBOI - IAD
1 stop7h 23mDelta
Deal found 12/16$823
This Alaska Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/286:58 pmIAD - GEG
1 stop8h 10mAlaska Airlines
vie. 1/35:00 amGEG - IAD
1 stop9h 58mAlaska Airlines
Deal found 12/16$823
This Southwest deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/265:20 pmIAD - BOI
1 stop8h 05mSouthwest
mar. 12/312:55 pmBOI - IAD
1 stop6h 05mSouthwest
Deal found 12/16$882
This Alaska Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/275:24 pmIAD - BOI
1 stop31h 34mAlaska Airlines
mar. 12/317:00 amBOI - IAD
1 stop8h 58mAlaska Airlines
Deal found 12/16$886
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/237:05 amIAD - JAC
1 stop7h 15mDelta
vie. 12/271:15 pmJAC - IAD
1 stop8h 04mDelta
Deal found 12/17$900

Find flights from Dulles Intl to Idaho within your budget

Customize your flight search to find flights from Dulles Intl to Idaho 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, Cheapflights users made 2,558,603 searches. Data last updated diciembre 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

mar. 2/4

7:25 am-12:00 pm

1 stop7h 35m

Spokane

mar. 2/18

5:00 am-3:28 pm

1 stop7h 28m

$278

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

mié. 1/8

8:35 am-3:33 pm

1 stop9h 58m

Spokane

sáb. 1/11

1:50 pm-11:30 pm

1 stop6h 40m

$292

Washington, D.C.Lewiston

IAD - LWS

IADLWS

Washington, D.C. Dulles Intl

jue. 1/9

7:20 am-11:58 am

1 stop7h 38m

Lewiston Nez Perce Rgnl

sáb. 1/11

12:38 pm-11:36 pm

1 stop7h 58m

$298

Washington, D.C.Jackson

IAD - JAC

IADJAC

Washington, D.C. Dulles Intl

mié. 1/15

6:10 am-2:17 pm

1 stop10h 07m

Jackson Hole

mié. 1/22

12:55 pm-10:41 pm

1 stop7h 46m

$334

Washington, D.C.Hailey

IAD - SUN

IADSUN

Washington, D.C. Dulles Intl

jue. 1/9

7:20 am-12:20 pm

1 stop7h 00m

Hailey Sun Valley-Friedman

jue. 1/16

1:00 pm-11:36 pm

1 stop8h 36m

$342

Washington, D.C.Jackson

IAD - JAC

IADJAC

Washington, D.C. Dulles Intl

sáb. 2/8

7:20 am-12:15 pm

1 stop6h 55m

Jackson Hole

mié. 2/12

1:10 pm-11:34 pm

1 stop8h 24m

$342

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

mié. 5/21

4:15 pm-10:33 pm

1 stop9h 18m

Spokane

sáb. 5/31

11:35 am-11:49 pm

1 stop9h 14m

$349

Washington, D.C.Jackson

IAD - JAC

IADJAC

Washington, D.C. Dulles Intl

dom. 3/16

6:10 am-11:43 am

1 stop7h 33m

Jackson Hole

mié. 3/19

2:40 pm-11:23 pm

1 stop6h 43m

$364

Washington, D.C.Jackson

IAD - JAC

IADJAC

Washington, D.C. Dulles Intl

jue. 1/16

5:25 pm-11:59 am

1 stop20h 34m

Jackson Hole

jue. 1/23

12:39 pm-4:23 pm

1 stop25h 44m

$394

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

mié. 2/26

7:00 am-10:36 pm

1 stop17h 36m

Idaho Falls Fanning Field

mié. 3/12

8:00 am-5:48 pm

1 stop7h 48m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 46 results
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Best time to book a flight from Dulles Intl to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Dulles Intl to Idaho

Get recent, data-driven insights about flights from Dulles Intl to Idaho including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Idaho?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Idaho (average of $314). Flying from Washington, D.C. Dulles Intl Airport to Idaho in June is currently the most expensive (average of $436). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to ID?

Find hourly flight availability from Dulles Intl to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 18, 2024.

When flying from Washington, D.C. Dulles Intl Airport to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated diciembre 18, 2024.
Read through reviews of airlines operating flights from Washington, D.C. to Idaho, such as United Airlines, American Airlines and Southwest. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,552 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Idaho one-way?

    One-way options have recently been found by users for as low as $139 on United Airlines. Other airlines that offer cheap prices include Delta from $144 and American Airlines from $174 one-way.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Idaho?

    The most popular flight routes from Washington, D.C. Dulles Intl Airport to Idaho are Washington, D.C. Dulles Intl - Jackson Hole, Washington, D.C. Dulles Intl - Boise Air Term. Gowen Fld and Washington, D.C. Dulles Intl - Spokane.

  • Can I find deals for flights from Dulles Intl to Idaho that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Idaho.

  • Can I find deals for business class flights from Dulles Intl to Idaho?

    Yes. Cheapflights offers flight deals from Dulles Intl to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Idaho (average of $314). Flying from Washington, D.C. Dulles Intl Airport to Idaho in June is currently the most expensive (average of $436). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Dulles Intl to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Reagan-National to Los Angeles flights
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Baltimore to Salt Lake City flights

Top 3 airlines flying from Dulles Intl to Idaho

Discover the top 3 airlines that operate flights from Dulles Intl to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$310Average$576FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$326Average$644FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$360Average$514FlexibilityNo cancel feeOn-time75%
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