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Cheap flights from District of Columbia to Idaho from $120

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Idaho departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from District of Columbia to Idaho

Cheap round-trip flights

Frontier Logo
2:00 pm - 11:48 amDCA-BOI
23h 48m1 stop
Frontier Logo
12:33 pm - 12:04 pmBOI-DCA
21h 31m1 stop
$189Frontier
Find Deal
Wed, Oct 29 - Sun, Nov 2
Frontier Logo
7:00 am - 11:08 amDCA-GEG
7h 08m1 stop
Frontier Logo
12:03 pm - 9:59 pmGEG-DCA
6h 56m1 stop
$207Frontier
Find Deal
Thu, Oct 23 - Thu, Oct 30
United Airlines Logo
3:59 pm - 8:37 pmIAD-JAC
6h 38m1 stop
United Airlines Logo
2:40 pm - 11:15 pmJAC-IAD
6h 35m1 stop
$249United Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 25
Alaska Airlines Logo
7:43 am - 3:12 pmIAD-BOI
9h 29m1 stop
Alaska Airlines Logo
6:05 pm - 6:23 amBOI-IAD
10h 18m1 stop
$252Alaska Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
United Airlines Logo
6:30 am - 12:02 pmDCA-SUN
7h 32m1 stop
United Airlines Logo
8:05 am - 9:52 pmSUN-DCA
11h 47m1 stop
$255United Airlines
Find Deal
Wed, Jan 21 - Sat, Jan 24
Delta Logo
7:15 am - 2:52 pmIAD-SUN
9h 37m1 stop
Delta Logo
3:25 pm - 11:50 pmSUN-IAD
6h 25m1 stop
$257Delta
Find Deal
Wed, Jan 21 - Sat, Jan 24
Alaska Airlines Logo
6:25 am - 5:00 pmIAD-GEG
13h 35m1 stop
Alaska Airlines Logo
7:00 am - 4:42 pmGEG-IAD
30h 42m1 stop
$264Alaska Airlines
Find Deal
Sat, Oct 18 - Tue, Oct 21
Delta Logo
4:59 pm - 12:08 amDCA-BOI
9h 09m1 stop
Delta Logo
5:25 am - 3:28 pmBOI-DCA
8h 03m1 stop
$297Delta
Find Deal
Wed, Oct 15 - Wed, Oct 22
Southwest Logo
9:05 am - 8:50 pmIAD-GEG
14h 45m2 stops
Southwest Logo
6:00 am - 3:55 pmGEG-IAD
6h 55m1 stop
$377Southwest
Find Deal
Wed, Mar 4 - Wed, Mar 11
Southwest Logo
5:45 pm - 11:10 pmIAD-BOI
7h 25m1 stop
Southwest Logo
5:30 am - 5:10 pmBOI-IAD
9h 40m1 stop
$391Southwest
Find Deal
Fri, Dec 5 - Sun, Dec 7

Frontier flights from District of Columbia to Idaho

Our best Frontier deals on District of Columbia to Idaho flight tickets
Frontier
Oct 29
DCA2:00 pmWashington, D.C. Reagan-National
23h 48m
1 stop
BOI11:48 amBoise Air Term. Gowen Fld
Nov 2
BOI12:33 pmBoise Air Term. Gowen Fld
21h 31m
1 stop
DCA12:04 pmWashington, D.C. Reagan-National
$189
Find similar
Frontier
Oct 23
DCA7:00 amWashington, D.C. Reagan-National
7h 08m
1 stop
GEG11:08 amSpokane
Oct 30
GEG12:03 pmSpokane
6h 56m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
$207
Find similar
Frontier
Oct 9
DCA7:00 amWashington, D.C. Reagan-National
7h 08m
1 stop
GEG11:08 amSpokane
Oct 16
GEG12:03 pmSpokane
21h 01m
1 stop
DCA12:04 pmWashington, D.C. Reagan-National
$208
Find similar

Hawaiian Airlines flights from District of Columbia to Idaho

Our best Hawaiian Airlines deals on District of Columbia to Idaho flight tickets
Hawaiian Airlines
Mar 3
IAD7:00 amWashington, D.C. Dulles Intl
8h 45m
1 stop
BOI1:45 pmBoise Air Term. Gowen Fld
Mar 4
BOI7:00 amBoise Air Term. Gowen Fld
8h 25m
1 stop
IAD5:25 pmWashington, D.C. Dulles Intl
$310
Find similar
Hawaiian Airlines
Oct 4
DCA8:00 amWashington, D.C. Reagan-National
10h 00m
1 stop
GEG3:00 pmSpokane
Oct 7
GEG9:00 amSpokane
9h 59m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
$693
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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, momondo users made 832,500 searches. Data last updated September 25, 2025.
Use the filters below to find and compare flights from District of Columbia to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 10/29

2:00 pm-11:48 am

1 stop23h 48m

Boise Air Term. Gowen Fld

Sun 11/2

12:33 pm-12:04 pm

1 stop21h 31m

$189

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Thu 10/23

7:00 am-11:08 am

1 stop7h 08m

Spokane

Thu 10/30

12:03 pm-9:59 pm

1 stop6h 56m

$207

Washington, D.C.Jackson

IAD - JAC

IADJAC

Washington, D.C. Dulles Intl

Tue 10/28

3:59 pm-8:37 pm

1 stop6h 38m

Jackson Hole

Tue 11/25

2:40 pm-11:15 pm

1 stop6h 35m

$249

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Wed 11/12

7:43 am-3:12 pm

1 stop9h 29m

Boise Air Term. Gowen Fld

Wed 11/19

6:05 pm-6:23 am

1 stop10h 18m

$252

Washington, D.C.Hailey

DCA - SUN

DCASUN

Washington, D.C. Reagan-National

Wed 1/21

6:30 am-12:02 pm

1 stop7h 32m

Hailey Sun Valley-Friedman

Sat 1/24

8:05 am-9:52 pm

1 stop11h 47m

$255

Washington, D.C.Hailey

IAD - SUN

IADSUN

Washington, D.C. Dulles Intl

Wed 1/21

7:15 am-2:52 pm

1 stop9h 37m

Hailey Sun Valley-Friedman

Sat 1/24

3:25 pm-11:50 pm

1 stop6h 25m

$257

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

Sat 10/18

6:25 am-5:00 pm

1 stop13h 35m

Spokane

Tue 10/21

7:00 am-4:42 pm

1 stop30h 42m

$264

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 10/15

4:59 pm-12:08 am

1 stop9h 09m

Boise Air Term. Gowen Fld

Wed 10/22

5:25 am-3:28 pm

1 stop8h 03m

$297

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

Wed 3/4

9:05 am-8:50 pm

2 stops14h 45m

Spokane

Wed 3/11

6:00 am-3:55 pm

1 stop6h 55m

$377

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Fri 12/5

5:45 pm-11:10 pm

1 stop7h 25m

Boise Air Term. Gowen Fld

Sun 12/7

5:30 am-5:10 pm

1 stop9h 40m

$391

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Idaho from

How to get the cheapest flight ticket from District of Columbia to Idaho

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Idaho?

In general, April is the cheapest month to fly from District of Columbia to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $296. If you don’t want to visit Idaho in April, then you should wait until May to fly from District of Columbia, when ticket prices are also cheap, with an average price of $300.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Wednesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $434. On the other hand, Monday is the most expensive day to depart from District of Columbia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $711.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from District of Columbia to Idaho at noon for as low as $431. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Idaho, so prices are often more expensive at around $671 per ticket.

Can stopping save me money on District of Columbia to Idaho flights?

You could potentially save up to 73% on your flight if you consider stops on a District of Columbia to Idaho flight.

Cheap District of Columbia to Idaho flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Idaho

Fastest flight time

4h 40m

Direct flights

Sun

Airports in Idaho

1 airport
The fastest flight from District of Columbia to Idaho takes 4h 40m
Direct flights go from District of Columbia to Idaho on Sunday. There are no airlines offering direct flights.
There is 1 airport near Idaho: Jackson Hole (JAC)
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  • When did momondo last update prices for flights from District of Columbia to Idaho?

    Prices for flights from District of Columbia to Idaho are refreshed on a daily basis.

  • How many operators does momondo search for flights from District of Columbia to Idaho?

  • How old do you have to be to fly from District of Columbia to Idaho?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Idaho.

  • What documentation or ID do you need to fly to Idaho?

    The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from District of Columbia to Idaho

Compare and see reviews for airlines that fly from District of Columbia to Idaho with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $202Free CancellationRating
7.9
7,973 reviews
Search Delta flights
United AirlinesPriceFrom $222Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $230Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $300Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $347Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Idaho?

It is quick and easy to find District of Columbia to Idaho flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho that suits you.

Can I find flights from District of Columbia to Idaho with flexible booking policies on momondo?

Yes. All flights to Idaho from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from District of Columbia to Idaho?

momondo provides multiple filters to help you find the best flight to Idaho from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from District of Columbia to Idaho right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Idaho from District of Columbia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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