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BOI - IAD

$140 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 7/3. 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
0 bags
Wed 7/10
Wed 7/17

Search hundreds of travel sites at once for deals on flights to Washington Dulles 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
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
7:45 pm - 5:56 amBOI-IAD
8h 11m1 stop
5:36 pm - 11:52 pmIAD-BOI
8h 16m1 stop
$358Delta
Find Deal
Thu, Aug 15 - Sun, Aug 18
11:39 pm - 11:24 amBOI-IAD
9h 45m2 stops
5:36 pm - 11:52 pmIAD-BOI
8h 16m1 stop
$363Delta
Find Deal
Thu, Aug 15 - Mon, Aug 19
5:22 pm - 8:43 amBOI-IAD
13h 21m2 stops
1:24 pm - 9:46 pmIAD-BOI
10h 22m2 stops
$378American Airlines
Find Deal
Sun, Sep 8 - Sat, Sep 14
8:59 pm - 7:35 amBOI-IAD
8h 36m1 stop
11:20 am - 5:01 pmIAD-BOI
7h 41m1 stop
Fri, Jul 19 - Wed, Jul 24
7:00 am - 4:30 pmBOI-IAD
7h 30m1 stop
6:55 am - 12:48 pmIAD-BOI
7h 53m1 stop
$402American Airlines
Find Deal
Sun, Sep 8 - Sat, Sep 14
6:50 pm - 11:17 amBOI-IAD
14h 27m1 stop
5:10 pm - 8:56 amIAD-BOI
41h 46m3 stops
Wed, Jul 10 - Thu, Jul 18
6:45 pm - 4:35 pmBOI-IAD
19h 50m2 stops
7:10 am - 11:59 pmIAD-BOI
18h 49m2 stops
$472Alaska Airlines
Find Deal
Mon, Aug 5 - Fri, Aug 9
7:20 am - 4:35 pmBOI-IAD
31h 15m1 stop
7:10 am - 10:55 pmIAD-BOI
17h 45m1 stop
$512Alaska Airlines
Find Deal
Sun, Jul 21 - Sat, Jul 27
2:15 pm - 12:38 amBOI-IAD
8h 23m1 stop
6:30 am - 9:20 pmIAD-BOI
16h 50m2 stops
$587United Airlines
Find Deal
Tue, Jun 25 - Thu, Jul 4
5:00 am - 1:11 pmBOI-IAD
6h 11m1 stop
6:30 am - 1:24 pmIAD-BOI
8h 54m1 stop
$766United Airlines
Find Deal
Sun, Jun 23 - Thu, Jun 27

Flights from Boise to Dulles Intl - Travel Insights & Trends

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.

What’s the cheapest day of the week to fly from Boise to Washington Dulles Airport?

The average price of all flights from Boise to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Washington Dulles Airport on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Boise to Washington Dulles Airport. For your return ticket, we recommend flying on a Wednesday and avoiding Fridays for the best deals.

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 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 January, where tickets cost $441 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $730 and $602 respectively.

How far in advance should I book a flight from Boise to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Boise to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Boise to Washington, D.C. Dulles Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 59 days before departure.

Which airlines provide the cheapest flights from Boise to Washington Dulles Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Boise to Washington Dulles Airport were found on Delta ($358) and American Airlines ($378). Sun Country Air proposed the cheapest one-way flight at $140.

Good to know

Low season

March

High season

June

Cheapest flight

$140
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 37% 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 $140 for a one-way ticket and $358 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?

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

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

    The two airlines most popular with KAYAK users for flights from Boise to Washington, D.C. are Delta and Alaska Airlines. With an average price for the route of $517 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $629 and an overall rating of 8.0.

  • 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.

See more FAQs

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
Alaska AirlinesOverall score based on 9254 reviews
8.2Boarding
7.3Entertainment
8.6Crew
7.9Comfort
7.3Food
Airline reviews

Everything was great but there were no entertainment options available.

6.0 GoodKyndra Homuth, Jun 2024SFO - PDX
Read more about Alaska Airlines reviews

Everything was great but there were no entertainment options available.

The crew was the best I’ve had the experience of flying with. A misbehaving child was making things difficult for me with bopping my tray table, taking my snack, and continually tapping or bumping me. The crew quietly and respectfully moved me to another seat, and thanked me for my patience. They couldn’t have been more kind. Their professionalism really stood out to me and I am more than happy to leave a great review for them!

It was okay. Gate crew could be better organized. Wheelchair service for my mother was late as we deplaned. Flight crew was alright. I’ve seen better and worse.

I would have appreciated notification that our flight was moved to another gate LAST MINUTE so that we would not have missed it. We got no such notice and had to spend another night to catch an available flight in the morning, which was huge inconvenience. We will never fly Alaska again.

Great! Wish we had more Alaska flight options in MSP

I was happy with my whole experience, and it was a smooth flight. Thank you

Flight was delayed 2 hours. It was too cold inside the cabin. My seat mate had no jacket so she was shivering the entire flight. The stewardess says there’s no available blanket.

Liked premium seat. Did not like: having to pay for entertainment/wi-fi; having to pay for food; single-aisle; and, only three rest rooms.

The plane had to sit on the tarmac for 45 minutes once it had landed. Not Alaska’s fault.

The airline was way too cold. We were freezing, I don’t know if that is normal. Overall it was pretty good flight. Always flown Alaska Airlines and I am not changing.

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

Terrible. I didn’t fly and I had an important meeting the next day.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

The flight was great until towards the end when the flight attendant read an excessively long commercial for purchasing an american airlines credit card. The worst part is that we are doing a lot of traveling this year so i was actually interested in getting the credit card, but I was so annoyed with the long commercial that I completely dismissed the flight attendant bringing around the information. Next time, keep the sales pitch to 10 seconds and then pass around the brochures!!

Nice aircraft. Plane was PACKED full and distance between seats was tight. Had it been more than a two hour flight it would not have been tolerable. I had much more knee space on the JetBlue flight I went out on.

New ridiculous policy by american destroyed my allegiance to american. As a million miler with american, I expected it would be easy to get on an earlier flight when I got to airport earlier than expected, and save a five hour layover. WRONG. The online app would not let me switch flights, So I called, and was promised a call back in 90 minutes. HAH! The customer service desk at DCA said “we no longer have access to changing a flight on our screens. If the app couldn’t do it, I should send a letter to American, but there’s nothing else possible!”

I am tired of being nickel and dimed for seat location, checked luggage and carry on bags. That is why i rarely fly anymore.

It was right on time and crew were very courteous

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Literally the worst experience ever and I had my service dog with me. Flight was supposed to leave at 1:51 PM but the plane arrived late. They boarded us around 3 PM and kept us on the plane for an hour saying that due to weather conditions in Miami, we could not takeoff yet. After waiting for an hour, they deplaned. And then they will not give us our bags back that we could just leave and schedule for another flight. Every hour they kept updating saying we have to wait another hour without any explanation as to what was going on. Eventually, I went to customer service to change my ticket, but by the time I made it to the front of the line, they started boarding my flight again. And then when we got onto the flight, they said there were two flight attendants That were past their shift. They kept us on the plane for about another 40 minutes until they told us they had no other flight attendance and had to deplane again. Then I gave us hotel vouchers and told us we would be on a flight at 6 AM the next day. At this point it is about 9 PM. I get to the hotel with my dog, who hasn’t been able to go potty for about eight hours. When I arrived at the hotel, I got a text alert saying my flight has been canceled at 6 AM and they moved past to 5 AM, however the hotel shuttle doesn’t leave early enough to make it to the airport for 5 AM flight. So me and some other passengers got a cab after about three hours of sleep to get back to the airport. This was the worst experience ever.

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Book cheap flights from Boise to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boise to Washington, D.C. found on KAYAK in the last 72 hours.
7/3Wed
1 stopSun Country Air
15h 28mBOI-IAD
$140
7/31Wed
1 stopSun Country Air
17h 35mBOI-IAD
$158
7/17Wed
1 stopUnited Airlines
10h 02mBOI-IAD
$179
7/26Fri
1 stopDelta
8h 11mBOI-IAD
$183
7/30Tue
2 stopsDelta
10h 46mBOI-IAD
$188
7/30Tue
1 stopAmerican Airlines
9h 38mBOI-IAD
$189
7/4Thu
1 stopAlaska Airlines
8h 46mBOI-IAD
$196
7/4Thu
2 stopsAlaska Airlines
15h 43mBOI-IAD
$201
7/29Mon
1 stopAmerican Airlines
13h 31mBOI-IAD
$239
6/24Mon
2 stopsUnited Airlines
18h 47mBOI-IAD
$368

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Last minute flights from Boise to Dulles Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Boise to Washington, D.C. that are departing in the next 10 days.
6/11Tue
multi-stop
9h 00mBOI-IAD
7/3Wed
multi-stop
7h 27mIAD-BOI
$691
6/13Thu
multi-stopAmerican Airlines
14h 54mBOI-IAD
6/18Tue
multi-stopAmerican Airlines
19h 11mIAD-BOI
$716
6/11Tue
multi-stopDelta
9h 31mBOI-IAD
7/3Wed
multi-stopDelta
6h 55mIAD-BOI
$742
6/12Wed
multi-stopAlaska Airlines
8h 59mBOI-IAD
6/16Sun
multi-stopAlaska Airlines
10h 07mIAD-BOI
$866
6/13Thu
multi-stopDelta
10h 09mBOI-IAD
6/18Tue
multi-stopDelta
6h 35mIAD-BOI
$909
6/12Wed
multi-stopAlaska Airlines
9h 00mBOI-IAD
6/16Sun
multi-stopAlaska Airlines
8h 04mIAD-BOI
$946
6/12Wed
multi-stopDelta
10h 43mBOI-IAD
6/16Sun
multi-stopDelta
10h 47mIAD-BOI
$1,211
6/12Wed
multi-stopDelta
10h 43mBOI-IAD
6/16Sun
multi-stopDelta
6h 55mIAD-BOI
$1,313
6/12Wed
multi-stopDelta
10h 43mBOI-IAD
6/16Sun
multi-stopDelta
9h 34mIAD-BOI
$1,360
6/12Wed
multi-stopDelta
10h 43mBOI-IAD
6/16Sun
multi-stopDelta
8h 39mIAD-BOI
$1,821

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Boise - Washington Dulles Airport Flights

Departure:

Boise (BOI)United States

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Boise

Cabin classes: