Cheap flights from Idaho to Washington, D.C. from $107
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Washington, D.C. departing on 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Alaska Airlines flights from Idaho to Washington, D.C.
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Fly from
Fly to
Route
Depart
Return
BoiseBaltimore
BOI Boise Air Term. Gowen Fld - BWI Baltimore/Washington
BOIBWI
Boise Air Term. Gowen Fld
Thu 10/29
3:24 pm-12:16 am
1 stop6h 52m
Baltimore/Washington
Wed 11/4
7:18 am-12:37 pm
1 stop7h 19m
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - DCA Washington, D.C. Reagan-National
BOIDCA
Boise Air Term. Gowen Fld
Thu 10/29
2:41 pm-11:59 pm
1 stop7h 18m
Washington, D.C. Reagan-National
Wed 11/4
6:00 am-12:37 pm
1 stop8h 37m
BoiseBaltimore
BOI Boise Air Term. Gowen Fld - BWI Baltimore/Washington
BOIBWI
Boise Air Term. Gowen Fld
Wed 10/28
1:40 pm-11:28 pm
1 stop7h 48m
Baltimore/Washington
Sat 10/31
7:20 am-12:35 pm
1 stop7h 15m
BoiseBaltimore
BOI Boise Air Term. Gowen Fld - BWI Baltimore/Washington
BOIBWI
Boise Air Term. Gowen Fld
Tue 11/10
3:00 pm-11:23 pm
1 stop6h 23m
Baltimore/Washington
Wed 11/18
7:01 am-12:33 pm
1 stop7h 32m
BoiseBaltimore
BOI Boise Air Term. Gowen Fld - BWI Baltimore/Washington
BOIBWI
Boise Air Term. Gowen Fld
Wed 10/28
2:25 pm-12:20 am
1 stop7h 55m
Baltimore/Washington
Sat 10/31
11:00 am-7:05 pm
2 stops10h 05m
BoiseBaltimore
BOI Boise Air Term. Gowen Fld - BWI Baltimore/Washington
BOIBWI
Boise Air Term. Gowen Fld
Wed 11/4
7:20 am-7:15 pm
1 stop9h 55m
Baltimore/Washington
Wed 11/11
3:45 pm-10:35 pm
2 stops8h 50m
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Sat 11/7
12:31 pm-9:10 pm
1 stop6h 39m
Washington, D.C. Dulles Intl
Mon 11/23
4:15 pm-11:33 pm
1 stop9h 18m
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Sat 1/16
2:35 pm-11:26 pm
1 stop6h 51m
Washington, D.C. Dulles Intl
Mon 1/18
6:00 am-2:51 pm
1 stop10h 51m
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Fri 11/6
4:16 pm-5:44 am
1 stop11h 28m
Washington, D.C. Dulles Intl
Mon 11/9
6:46 pm-1:30 pm
1 stop20h 44m
BoiseWashington, D.C.
BOI Boise Air Term. Gowen Fld - IAD Washington, D.C. Dulles Intl
BOIIAD
Boise Air Term. Gowen Fld
Sat 1/23
6:37 am-4:27 pm
1 stop7h 50m
Washington, D.C. Dulles Intl
Wed 1/27
6:53 pm-8:50 pm
2 stops27h 57m
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Idaho to Washington, D.C.
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 Washington, D.C.?
The month of February is, on average, the cheapest month to fly to Washington, D.C. from Idaho, with most prices found around $380. If you’re not able to fly to Washington, D.C. in February, then October is your next best option. Flight prices from Idaho to Washington, D.C. during October average around $392.
Can stopping save me money on Idaho to Washington, D.C. flights?
You could potentially save up to 68% on your flight if you consider stops on a Idaho to Washington, D.C. flight.
What is the cheapest airline that flies from Idaho to Washington, D.C.?
Delta, Southwest, and United Airlines are the most popular carriers operating from Idaho to Washington, D.C.
What airlines fly to Washington, D.C.?
Delta, United Airlines and Southwest are the top three most popular airlines that fly to Washington, D.C. from Idaho according to our data. Delta is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 5 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.
Cheap Idaho to Washington, D.C. flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Idaho to Washington, D.C.
Frequently asked questions about flying from Idaho to Washington, D.C.
When did momondo last update prices for flights from Idaho to Washington, D.C.?
Prices for flights from Idaho to Washington, D.C. were last updated today.
How many operators does momondo search for flights from Idaho to Washington, D.C.?
As of October 2026, there are 5 operators available to choose from for flights from Idaho to Washington, D.C..
How old do you have to be to fly from Idaho to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Idaho to Washington, D.C.
Compare and see reviews for airlines that fly from Idaho to Washington, D.C. with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $176 | Free Cancellation | Rating 7.8 8,652 reviews | |||
| PriceFrom $245 | Free Cancellation | Rating 7.9 13,043 reviews | |||
| PriceFrom $262 | Free Cancellation | Rating 7.4 10,332 reviews | |||
| PriceFrom $294 | Free Cancellation | Rating 7.0 12,152 reviews | |||
| PriceFrom $340 | Free Cancellation | Rating 7.9 4,228 reviews |
Traveling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Idaho to Washington, D.C.?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Idaho to Washington, D.C. for you.
Can I find flights from Idaho to Washington, D.C. with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Washington, D.C. from Idaho with this policy.
How can momondo help me find flights from Idaho to Washington, D.C.?
momondo helps you find the best flight between Idaho and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Idaho to Washington, D.C. right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Washington, D.C. from Idaho. 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.