Idaho

$113+ Cheap flights from Reagan-National (DCA) to Idaho

DCA — BOI
Nov 20 — Nov 271
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Idaho with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Idaho

Cheapest flights from Reagan-National to Idaho

Mon 11/92:00 pm -
1 stop9h 59m
Tue 11/105:30 am -
1 stop6h 30m
Deal found 10/21$225
Tue 12/84:00 pm -
2 stops8h 35m
Wed 12/91:05 pm -
2 stops8h 15m
Deal found 10/19$235
Mon 11/94:25 pm -
1 stop9h 25m
Mon 11/163:00 pm -
1 stop6h 37m
Deal found 10/20$243
Fri 12/256:13 pm -
1 stop8h 19m
Tue 1/56:07 am -
1 stop9h 52m
Deal found 10/20$263
Thu 12/33:35 pm -
2 stops9h 00m
Thu 12/101:05 pm -
2 stops7h 05m
Deal found 10/19$271
Mon 11/95:00 am -
1 stop8h 25m
Wed 11/111:24 pm -
1 stop7h 05m
Deal found 10/19$280
Thu 11/196:05 am -
1 stop8h 28m
Sun 11/221:41 pm -
1 stop7h 04m
Deal found 10/21$302
Thu 11/196:05 am -
1 stop8h 28m
Fri 11/273:00 pm -
1 stop6h 40m
Deal found 10/19$308
Tue 11/2410:59 am -
2 stops12h 57m
Tue 12/12:05 pm -
1 stop24h 00m
Deal found 10/21$312
Thu 11/55:00 am -
1 stop8h 25m
Mon 11/91:24 pm -
1 stop7h 05m
Deal found 10/21$314
Wed 11/116:00 am -
1 stop8h 37m
Sun 11/152:41 pm -
1 stop7h 18m
Deal found 10/21$337
Fri 12/43:31 pm -
1 stop8h 18m
Sun 12/61:41 pm -
1 stop8h 18m
Deal found 10/17$399

Find flight deals from Reagan-National to Idaho

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$225
(Delta)

One-way from

$113
(Delta)

Popular in

December

Cheapest in

May

Average price

$372
Provider with most accurate pricing for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flights.
From Washington, D.C. Reagan-National to Idaho
One-way flight from Washington, D.C. Reagan-National to Idaho
Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Average for round-trip flights in October 2026

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Tue 11/17

6:00 am-12:37 pm

1 stop8h 37m

Boise Air Term. Gowen Fld

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$113

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Thu 12/3

3:35 pm-10:35 pm

2 stops9h 00m

Boise Air Term. Gowen Fld

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$118

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Wed 11/18

4:00 pm-10:35 pm

2 stops8h 35m

Boise Air Term. Gowen Fld

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$119

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Thu 11/26

7:45 am-2:58 pm

1 stop9h 13m

Boise Air Term. Gowen Fld

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$131

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Mon 12/7

6:59 am-1:44 pm

1 stop8h 45m

Boise Air Term. Gowen Fld

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$172
Quickest round-trip

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Tue 11/24

6:25 am-11:31 am

1 stop7h 06m

Boise Air Term. Gowen Fld

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$182

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Fri 11/20

7:59 am-1:39 pm

1 stop7h 40m

Boise Air Term. Gowen Fld

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$196

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Fri 11/20

6:00 am-12:38 pm

1 stop8h 38m

Boise Air Term. Gowen Fld

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$196

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Wed 11/18

5:00 am-1:05 pm

1 stop10h 05m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$200

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Tue 11/3

6:05 am-12:35 pm

1 stop8h 30m

Boise Air Term. Gowen Fld

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$202

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 54 resultsSorted by cheapest first
1
2
3
...
6

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

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

Cheapflights Insights

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

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to Idaho?

Airfare is below average for this route at the moment.
Washington, D.C. Reagan-National Airport to Idaho flights typically cost between $304 and $624 in November.
The cheapest round-trip price found within the last 5 days was $225 on Delta (Nov 9-Nov 10).

Reviews of airlines servicing Idaho

Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport to Idaho, such as Alaska Airlines,Delta, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Comfort

7.8

Overall

7.9

Entertainment

7.0

Food

7.0

Boarding

8.1

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

  • How long is the flight from Washington, D.C. Reagan-National Airport to Idaho?

    Departing from Washington, D.C. Reagan-National Airport to Idaho will take you 6h 55m. There are 1835 mi between Washington, D.C. Reagan-National Airport and Idaho. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $131 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $145 and $146, respectively.

  • What are the most popular routes from Washington, D.C. Reagan-National Airport to Idaho?

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

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

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

    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.

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

    Yes. Cheapflights offers flight deals from Reagan-National 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Reagan-National to Idaho

Top 4 airlines flying from Reagan-National to Idaho

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$262Average$578FlexibilityNo cancel feeOn-time71%
DeltaCheapest$270Average$462FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$322Average$405FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$388Average$458FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.