BOI - IAD

$99 Find Cheap Flights from Boise to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Dulles Intl departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$202
Typical prices: $489-$360
Delta
Wed 5/27Tue 6/2
BOI - IAD • 2 stops
Cheapest one-way
$105
Typical prices: $423-$753
Delta
Sat 9/19
BOI - IAD • 1 stop
Top airlines
Cheapest • from $202 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boise and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $381 (round-trip)
Shortest trip • 6h 09m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 38% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Dulles Intl (BOI-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Dulles Intl

Wed, May 27 - Tue, Jun 2
Delta Logo
9:16 pm - 11:18 am
BOI
-
IAD
12h 02m
2 stops
Delta Logo
7:00 am - 2:41 pm
IAD
-
BOI
9h 41m
1 stop
$202Delta
Sat, Sep 19 - Tue, Sep 22
Delta Logo
1:15 pm - 11:51 pm
BOI
-
IAD
8h 36m
1 stop
Delta Logo
6:15 am - 2:03 pm
IAD
-
BOI
9h 48m
1 stop
$203Delta
Wed, May 27 - Tue, Jun 2
Delta Logo
9:16 pm - 11:18 am
BOI
-
IAD
12h 02m
2 stops
Delta Logo
5:21 pm - 12:04 am
IAD
-
BOI
8h 43m
2 stops
$208Delta
Tue, Jun 9 - Tue, Jun 16
Delta Logo
11:45 pm - 11:39 am
BOI
-
IAD
9h 54m
1 stop
Delta Logo
6:00 am - 1:51 pm
IAD
-
BOI
9h 51m
1 stop
$230Delta
Tue, Jun 9 - Tue, Jun 16
Delta Logo
6:00 am - 6:41 pm
BOI
-
IAD
10h 41m
2 stops
Delta Logo
6:00 am - 10:58 am
IAD
-
BOI
6h 58m
1 stop
$235Delta
Tue, Jun 9 - Tue, Jun 16
Delta Logo
6:00 am - 6:41 pm
BOI
-
IAD
10h 41m
2 stops
Delta Logo
8:27 am - 5:52 pm
IAD
-
BOI
11h 25m
2 stops
$240Delta
Sat, Sep 19 - Tue, Sep 22
Delta Logo
1:15 pm - 11:51 pm
BOI
-
IAD
8h 36m
1 stop
Delta Logo
7:10 am - 3:38 pm
IAD
-
BOI
10h 28m
1 stop
$263Delta
Thu, May 28 - Tue, Jun 2
Delta Logo
11:39 pm - 9:16 am
BOI
-
IAD
7h 37m
1 stop
Delta Logo
10:11 am - 5:50 pm
IAD
-
BOI
9h 39m
2 stops
$268Delta
Wed, May 27 - Mon, Jun 1
Delta Logo
9:16 pm - 11:18 am
BOI
-
IAD
12h 02m
2 stops
Delta Logo
5:21 pm - 11:46 pm
IAD
-
BOI
8h 25m
2 stops
$273Delta
Tue, Sep 22 - Tue, Sep 29
American Airlines Logo
5:11 pm - 8:38 am
BOI
-
IAD
13h 27m
2 stops
American Airlines Logo
2:46 pm - 10:17 pm
IAD
-
BOI
9h 31m
1 stop
$280American Airlines
Booking Insights

KAYAK's insights & trends for Boise to Dulles Intl flights

Get data-powered insights and trends into flights from Boise to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boise to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boise to Washington, D.C. Dulles Intl Airport departing in May.

What is the cheapest month to fly from Boise to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boise to Washington, D.C. Dulles Intl Airport is May, where tickets cost $300 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $692 and $574 respectively.

Good to know

Low seasonFebruary
Cheapest flight$105
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 12% increase in price.
Flight from Boise to Washington Dulles Airport

When to book flights from Boise to Dulles Intl

Are your dates flexible? Find out the best times to travel from Boise to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Boise to Washington Dulles Airport flights

  • What is the cheapest flight from Boise to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Boise to Washington, D.C. Dulles Intl Airport was $99 for a one-way ticket and $202 for a round-trip.

  • Do I need a passport to fly between Boise and Washington Dulles Airport?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Boise to Washington Dulles Airport?

    On your way to Washington Dulles Airport, you’ll fly out from Boise Air Term. Gowen Fld. You’ll be landing at Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Boise to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boise to Washington Dulles Airport?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Boise and Washington Dulles Airport, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Boise to Washington, D.C., Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Boise to Washington, D.C. are Southwest and Alaska Airlines. With an average price for the route of $475 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $490 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Boise to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Boise is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Boise with another airline. Booking your flights between Boise and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Boise to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Boise to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4314 reviews
8.0Comfort
8.6Crew
7.5Entertainment
8.1Boarding
7.0Food
Airline reviews

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

4.0 OkayCrystal, Apr 2026
MSY - MDW
Read more Southwest reviews

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

The seat was not comfortable. 1D. My back was sore all night and the next day.

Flight was cancelled which destroyed the rest of our journey.

This was my second time flying Alaska Airline in the 1st Class cabin. Everything was fine with the exception of the food and entertainment. The food was just ok but not what I was expecting from 1st Class. A BBQ pork sandwich and baked potato. There wasnt any in-flight entertainment. I found that odd since it was a coast to coast flight Seattle to Dulles. My sister flew 1st Class on Delta on a shorter flight ( Seattle to Cincinnati) and had an awesome meal and in-flight entertainment. I typically fly Delta but there wasn’t a flight with times that fit my schedule. I am by no means a primary donna. But when my upgrade cost over $900…I didn’t use any reward miles…I was expecting more than what I got. I will never fly Alaska Airline 1st Class again. I will stick with Delta for all my travel needs whether it’s in 1st Class or coach.

WOuld have liked coffee or pretzels but other than that, crew and pilot and flight were great. Seat was great, too.

Very easy, stress free airline. Was a wonderful experience. Will use again

The overhead storage was already packed full when I boarded (I fly peasant class), but the attendant played some Tetris and made a spot for my small suitcase. Thanks!

Snacks for our toddler could have been better, front the standpoint of variety but that’s not any different from other airlines.

I fell asleep and missed my flight and they rescheduled me no problem. Staff was professional and the plane was clean. I was very happy with my experience.

I enjoyed the Starlink access but didn't have much time to use it. It also kept dropping me so I gave up. The food was very good though when I asked for a different "dessert" they didn't have anything. Chocolate Brownie Cookies are not suitable for everyone...maybe children. The flight staff were amazing - at least in First Class! My first time ever! The trip from Boise to San Diego was FAR better than going to Boise.

From Las Vegas to Boise all went well. However, our flight was delayed in Boise and I missed my connecting flight from Seattle to Pasco. Moreover, the last flight to Pasco was full and I was booked on the 11:30 flight Sunday and given a hotel accommodation. However, I was scheduled to deliver the Sunday morning service at my church and needed to arrive no later than 10:00. Therefore, I booked a Delta flight scheduled to arrive in Pasco at 23:09. My piece of luggage checked in Las Vegas arrived in Pasco earlier today. I waited at the airport for over an hour last night to speak with an Alaska agent to no avail. I went back after church this morning in search of my piece of luggage and it could not be located. After waiting for 40 minutes to speak to the agent authorized to take my claim, he announced that he was closing the counter to assist on the flight line but not before providing me with a telephone number that would help me with filing my claim. Before I was able to make the call (due to other factors) I received a call from Alaska agent informing me that my luggage had just arrived and I am now waiting for it to be delivered. I deliberately took the more complicated route home to ensure that I would be home in plenty of time to prepare for myself for the Sunday service and accommodate my relatives’ needs. I believe the airport is undermanned given the number of flights coming in and going out. It was fiasco last night with three flights waiting for luggage and another flight landing within minutes. Today’s problems stemmed from a lack of cross training and a serious amount of cargo/baggage going out and too few people scheduled to cover.

It was ok. First time flying with them to Boise Won’t do again

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

My bags were misplaced!!! Im in a foreign country with no bags

I liked that it was on time, however, the food was not good.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Everything you need to know for your flight from Boise to Dulles Intl

Information on your arrival and departure airports