Cheap flights from Idaho to Washington, D.C. Reagan-National Airport from $89
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. Reagan-National Airport departing on 5/20. 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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1 adult
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0 bags
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Cheap round-trip flights
KAYAK's recommended round-trip deals from the most popular airlines that fly from Idaho to Washington, D.C..
Cheap one-way flights
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Cheap last minute flights
Planning a quick getaway from Idaho to Washington, D.C.? These are the last-minute flight deals available now.
United Airlines flights from Idaho to Washington, D.C. Reagan-National Airport
Our best United Airlines deals on Idaho to Washington, D.C. Reagan-National Airport flight tickets
United Airlines![United Airlines]()
Sep 4![United Airlines]()
Sep 7
GEG5:35 amSpokane
6h 21m
1 stop
DCA2:56 pmWashington, D.C. Reagan-National
DCA6:25 amWashington, D.C. Reagan-National
8h 02m
1 stop
GEG11:27 amSpokane
United Airlines![United Airlines]()
May 13![United Airlines]()
May 19
JAC7:00 amJackson Hole
6h 02m
1 stop
DCA3:02 pmWashington, D.C. Reagan-National
DCA4:37 pmWashington, D.C. Reagan-National
19h 02m
2 stops
JAC9:39 amJackson Hole
Alaska Airlines flights from Idaho to Washington, D.C. Reagan-National Airport
Our best Alaska Airlines deals on Idaho to Washington, D.C. Reagan-National Airport flight tickets
Alaska Airlines![Alaska Airlines]()
May 7![Alaska Airlines]()
May 13
BOI9:18 amBoise Air Term. Gowen Fld
10h 41m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
DCA8:59 amWashington, D.C. Reagan-National
15h 56m
1 stop
BOI10:55 pmBoise Air Term. Gowen Fld
Alaska Airlines![Alaska Airlines]()
May 17![Alaska Airlines]()
May 20
BOI8:55 amBoise Air Term. Gowen Fld
10h 10m
1 stop
DCA9:05 pmWashington, D.C. Reagan-National
DCA9:59 amWashington, D.C. Reagan-National
14h 51m
1 stop
BOI10:50 pmBoise Air Term. Gowen Fld
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Idaho to Washington, D.C. Reagan-National Airport
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
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Other information
What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?
The month of August is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Idaho, with most prices found around $469. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of August, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $472.
What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?
The cheapest day to depart from Idaho to Washington, D.C. Reagan-National Airport is on a Saturday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Saturday will often find tickets for as low as $532. Flights from Idaho to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $699. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?
Our data shows that the cheapest Idaho to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the evening. Our users have found flights to Washington, D.C. Reagan-National Airport in the evening for as low as $453. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the morning when prices are around $634.
How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?
You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Idaho when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $521 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Idaho for as low as $375 on momondo.
What is the cheapest airline that flies from Idaho to Washington, D.C. Reagan-National?
Frontier, Hawaiian Airlines, and Delta are the most popular carriers operating from Idaho to Washington, D.C. Reagan-National
What airlines fly to Washington, D.C. Reagan-National Airport?
Delta, United Airlines and American Airlines are the top three most popular airlines that fly to Washington, D.C. Reagan-National Airport from Idaho according to our data. Delta is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Washington, D.C. Reagan-National Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Reagan-National Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Idaho to Washington, D.C. Reagan-National Airport on average per week?
3 flights are operational weekly from Idaho to Washington, D.C. Reagan-National Airport as of April 2025. The most popular departure day for this route is Mon, with 33% of flights per week taking off on this day.
How long does it take to fly to Washington, D.C. Reagan-National Airport?
Flight times from Idaho to Washington, D.C. Reagan-National Airport vary, but if you’re flying out of Boise and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 6h 10m on average. Another popular route from Idaho to Washington, D.C. Reagan-National Airport is flying from Hailey to Washington, D.C. Dulles Intl Airport, which will take roughly 6h 23m. Keep in mind that layovers or delays could extend your travel time.
Cheap Idaho to Washington, D.C. Reagan-National Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Idaho to Washington, D.C. Reagan-National Airport
When did momondo last update prices for flights from Idaho to Washington, D.C. Reagan-National Airport?
Prices for flights from Idaho to Washington, D.C. Reagan-National Airport are updated daily.
How many operators does momondo search for flights from Idaho to Washington, D.C. Reagan-National Airport?
There are 5 operators available for flights from Idaho to Washington, D.C. Reagan-National Airport as of April 2025.
How old do you have to be to fly from Idaho to Washington, D.C. Reagan-National Airport?
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. Reagan-National Airport.
What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Idaho to Washington, D.C. Reagan-National Airport
Compare and see reviews for airlines that fly from Idaho to Washington, D.C. Reagan-National Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $309 | Free Cancellation | Rating 8.0 7,917 reviews | |||
| PriceFrom $316 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $380 | Free Cancellation | Rating 7.4 8,667 reviews | |||
| PriceFrom $403 | Free Cancellation | Rating 8.0 4,280 reviews | |||
| PriceFrom $451 | Free Cancellation | Rating 8.0 9,882 reviews |
Traveling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsAlexandria
Arlington
Gettysburg
National Harbor
Laurel
Silver Spring
Woodbridge
Tysons
Fredericksburg
Waldorf
Manassas
Gaithersburg
Rockville
Glen Burnie
Fairfax
Linthicum Heights
Towson
Reston
Springfield
Hyattsville
Why use momondo?
Why should I use momondo to find a flight deal from Idaho to Washington, D.C.?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Idaho.
Can I find flights from Idaho to Washington, D.C. with flexible booking policies on momondo?
Yes. All flights to Washington, D.C. from Idaho on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Idaho to Washington, D.C.?
Once all potential Idaho to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Idaho to Washington, D.C. right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Idaho to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.
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