What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Idaho Falls round-trip?

American Airlines, at $386, was found to be the cheapest airline from Washington, D.C. Reagan-National Airport to Idaho Falls.Alternate airlines to your destination round-trip include Delta and Alaska Airlines.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Idaho Falls?

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Idaho Falls flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Washington, D.C. Reagan-National Airport to Idaho Falls?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 51% when planning your travel around this day of the week.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Idaho Falls?

Flights from Washington, D.C. Reagan-National Airport to Idaho Falls lean towards being more expensive in November. Prices are generally better when you fly from Washington, D.C. Reagan-National Airport to Idaho Falls in February, with the cheapest ticket starting at $359.

What is the cheapest time of day to fly from DCA to IDA?

When flying from Washington, D.C. Reagan-National Airport to Idaho Falls, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 9% versus a flight at noon.

Most accurate provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Idaho Falls flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Idaho Falls from Washington, D.C. Reagan-National?

For a flight from Washington, D.C. Reagan-National to Idaho Falls, you will be flying into Fanning Field. Idaho Falls Fanning Field (IDA) is just 3.8 mi from the center of the city. Fanning Field is the only Idaho Falls airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 2 airlines have flights to Idaho Falls Fanning Field from Washington, D.C. Reagan-National on a regular basis.

Can I find deals for flights from Reagan-National to Idaho Falls that include hotel bookings?

Yes. In addition to deals on Reagan-National to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Reagan-National to Idaho Falls?

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

Can I find deals for business class flights from Reagan-National to Idaho Falls?

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

$311+ Flights from Washington, D.C. Reagan-National Airport to Idaho Falls

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Cheap flight deals from Reagan-National to Idaho Falls

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$386 (American Airlines)
One-way from	$311 (American Airlines)
Popular in	November
Cheapest in	February
Average price	$711

Provider with most accurate pricing for Washington, D.C. Reagan-National-Idaho Falls Fanning Field flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Idaho Falls Fanning Field flights.

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From Washington, D.C. Reagan-National to Idaho Falls Fanning Field

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One-way flight from Washington, D.C. Reagan-National to Idaho Falls Fanning Field

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Highest demand for flights based on searches. 5% potential increase in price ($41 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Find flight deals from Reagan-National to Idaho Falls

Cheapest flights from Reagan-National to Idaho Falls
Explore the most affordable flight options available from Reagan-National to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

Sat 4/265:00 amDCA - IDA

1 stop9h 29mAmerican Airlines

Wed 4/307:43 amIDA - DCA

2 stops12h 32mAmerican Airlines

Deal found 3/23

$386

Sat 4/266:00 amDCA - IDA

2 stops8h 26mDelta

Wed 4/306:55 pmIDA - DCA

2 stops25h 50mDelta

Deal found 3/24

$407

Sat 4/268:00 amDCA - IDA

1 stop9h 58mAlaska Airlines

Wed 4/306:00 amIDA - DCA

1 stop13h 59mAlaska Airlines

Deal found 3/24

$467

Sat 4/264:15 pmDCA - IDA

1 stop6h 52mUnited Airlines

Wed 4/304:15 pmIDA - DCA

2 stops14h 44mUnited Airlines

Deal found 3/24

$560

Tue 8/128:00 amDCA - IDA

1 stop9h 23mHawaiian Airlines

Thu 8/216:13 amIDA - DCA

1 stop8h 27mHawaiian Airlines

Deal found 3/23

$574

Best flights from Reagan-National to Idaho Falls
Discover carefully curated flight deals from Reagan-National to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 26, 2025.

Sat 4/265:00 amDCA - IDA

1 stop9h 29mAmerican Airlines

Wed 4/307:43 amIDA - DCA

2 stops12h 32mAmerican Airlines

Deal found 3/23

$386

Sat 4/266:00 amDCA - IDA

2 stops8h 26mDelta

Wed 4/306:55 pmIDA - DCA

2 stops25h 50mDelta

Deal found 3/24

$407

Sat 4/268:00 amDCA - IDA

1 stop9h 58mAlaska Airlines

Wed 4/306:00 amIDA - DCA

1 stop13h 59mAlaska Airlines

Deal found 3/24

$467

Sat 4/264:15 pmDCA - IDA

1 stop6h 52mUnited Airlines

Wed 4/304:15 pmIDA - DCA

2 stops14h 44mUnited Airlines

Deal found 3/24

$560

Tue 8/128:00 amDCA - IDA

1 stop9h 23mHawaiian Airlines

Thu 8/216:13 amIDA - DCA

1 stop8h 27mHawaiian Airlines

Deal found 3/23

$574

Last-minute flights from Reagan-National to Idaho Falls
Discover last-minute flight deals from Reagan-National to Idaho Falls. Data last updated March 26, 2025 and is based on user searches.

Mon 3/3111:40 amDCA - IDA

2 stops12h 32mAmerican Airlines

Tue 4/112:58 pmIDA - DCA

1 stop8h 01mAmerican Airlines

Deal found 3/24

$616

Mon 3/314:15 pmDCA - IDA

1 stop19h 17mUnited Airlines

Tue 4/14:15 pmIDA - DCA

1 stop20h 46mUnited Airlines

Deal found 3/24

$847

Fri 4/45:10 pmDCA - IDA

1 stop7h 20mDelta

Sat 4/56:00 amIDA - DCA

1 stop8h 00mDelta

Deal found 3/24

$671

Fri 4/258:00 amDCA - IDA

1 stop9h 58mHawaiian Airlines

Wed 4/306:00 amIDA - DCA

1 stop8h 38mHawaiian Airlines

Deal found 3/23

$697

Sat 4/265:00 amDCA - IDA

1 stop9h 29mAmerican Airlines

Wed 4/307:43 amIDA - DCA

2 stops12h 32mAmerican Airlines

Deal found 3/23

$386

Sat 4/266:00 amDCA - IDA

2 stops8h 26mDelta

Wed 4/306:55 pmIDA - DCA

2 stops25h 50mDelta

Deal found 3/24

$407

Sat 4/268:00 amDCA - IDA

1 stop9h 58mAlaska Airlines

Wed 4/306:00 amIDA - DCA

1 stop13h 59mAlaska Airlines

Deal found 3/24

$467

Sat 4/264:15 pmDCA - IDA

1 stop6h 52mUnited Airlines

Wed 4/304:15 pmIDA - DCA

2 stops14h 44mUnited Airlines

Deal found 3/24

$560

One-way flights from Reagan-National to Idaho Falls
Search for one-way flight options from Reagan-National to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated March 26, 2025.

Mon 3/3111:40 amDCA - IDA

2 stops12h 32mAmerican Airlines

Deal found 3/24

$311

Mon 3/315:10 pmDCA - IDA

1 stop7h 23mDelta

Deal found 3/24

$390

Mon 3/316:00 amDCA - IDA

3 stops18h 35mMultiple Airlines

Deal found 3/24

$684

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sat 4/26

5:00 am-12:29 pm

1 stop9h 29m

Idaho Falls Fanning Field

Wed 4/30

7:43 am-10:15 pm

2 stops12h 32m

$386

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sat 4/26

6:00 am-12:26 pm

2 stops8h 26m

Idaho Falls Fanning Field

Wed 4/30

6:55 pm-10:45 pm

2 stops25h 50m

$407

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sat 4/26

8:00 am-3:58 pm

1 stop9h 58m

Idaho Falls Fanning Field

Wed 4/30

6:00 am-9:59 pm

1 stop13h 59m

$467

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sat 4/26

4:15 pm-9:07 pm

1 stop6h 52m

Idaho Falls Fanning Field

Wed 4/30

4:15 pm-8:59 am

2 stops14h 44m

$560

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Tue 8/12

8:00 am-3:23 pm

1 stop9h 23m

Idaho Falls Fanning Field

Thu 8/21

6:13 am-4:40 pm

1 stop8h 27m

$574

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Mon 3/31

11:40 am-10:12 pm

2 stops12h 32m

$311

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Mon 3/31

5:10 pm-10:33 pm

1 stop7h 23m

$390

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Mon 3/31

6:00 am-10:35 pm

3 stops18h 35m

$684

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Compare providers for flights from Reagan-National to Idaho Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Idaho Falls in March.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Idaho Falls flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Reagan-National 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Idaho Falls

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Idaho Falls (average of $380). Flying from Washington, D.C. Reagan-National Airport to Idaho Falls in July is currently the most expensive (average of $628). 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.

Rainfall in Idaho Falls by month

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

If weather is an important factor for your trip to Idaho Falls, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown Alaska Airlines, Delta and Hawaiian Airlines from Washington, D.C. to Idaho Falls. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,789 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,789 reviews

Alaska Airlines

8.0

Very good

9,789 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,891 reviews

Alaska Airlines

8.0

Very good

9,789 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines

7.9

Good

2,330 reviews

Alaska Airlines

8.0

Very good

9,789 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,608 reviews

Alaska Airlines

8.0

Very good

9,789 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,789 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

What airport do you fly into for flights to Idaho Falls from Washington, D.C. Reagan-National?
For a flight from Washington, D.C. Reagan-National to Idaho Falls, you will be flying into Fanning Field. Idaho Falls Fanning Field (IDA) is just 3.8 mi from the center of the city. Fanning Field is the only Idaho Falls airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 2 airlines have flights to Idaho Falls Fanning Field from Washington, D.C. Reagan-National on a regular basis.
What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Idaho Falls round-trip?
American Airlines, at $386, was found to be the cheapest airline from Washington, D.C. Reagan-National Airport to Idaho Falls.Alternate airlines to your destination round-trip include Delta and Alaska Airlines.
Can I find deals for flights from Reagan-National to Idaho Falls that include hotel bookings?
Yes. In addition to deals on Reagan-National to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Idaho Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Idaho Falls.
Can I find deals for business class flights from Reagan-National to Idaho Falls?
Yes. Cheapflights offers flight deals from Reagan-National to Idaho Falls 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. Reagan-National Airport to Idaho Falls?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Idaho Falls (average of $380). Flying from Washington, D.C. Reagan-National Airport to Idaho Falls in July is currently the most expensive (average of $628). 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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Top 2 airlines flying from Reagan-National to Idaho Falls

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$486	Average$738	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$736	Average$957	FlexibilityNo cancel fee	On-time69%

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$311+ Cheap flights from Reagan-National (DCA) to Idaho Falls (IDA)

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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Idaho Falls with Cheapflights

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Cheap flight deals from Reagan-National to Idaho Falls

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Find flight deals from Reagan-National to Idaho Falls

Cheapest flights from Reagan-National to Idaho FallsExplore the most affordable flight options available from Reagan-National to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

Explore the most affordable flight options available from Reagan-National to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Idaho Falls that are best for you.

Compare providers for flights from Reagan-National to Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Idaho Falls in March.

Best time to book a flight from Reagan-National to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Reagan-National with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Idaho Falls

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Idaho Falls?

Rainfall in Idaho Falls by month

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

Temperature in Idaho Falls by month

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

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown Alaska Airlines, Delta and Hawaiian Airlines from Washington, D.C. to Idaho Falls. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly into for flights to Idaho Falls from Washington, D.C. Reagan-National?

What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Idaho Falls round-trip?

Can I find deals for flights from Reagan-National to Idaho Falls that include hotel bookings?

How can I find direct flights from Reagan-National to Idaho Falls?

Can I find deals for business class flights from Reagan-National to Idaho Falls?

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Idaho Falls?

Traveling to a place near Washington, D.C. Reagan-National Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Reagan-National to Idaho Falls

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Cheapest flights from Reagan-National to Idaho Falls
Explore the most affordable flight options available from Reagan-National to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.